Niitsu, Kiichi(Graduate School of Informatics, Department of Informatics) | Activity Database on Education and Research, Kyoto University

Niitsu, Kiichi

Graduate School of Informatics, Department of Informatics Professor

Last Updated :2025/04/23

Basic Information

Faculty

Faculty of Engineering

Email Address

Email Address
niitsu.kiichi.2pkyoto-u.ac.jp

Academic Degree

23 Mar. 2008
慶應義塾大学修士（工学）

23 Mar. 2010
慶應義塾大学博士（工学）

Academic Resume (Undergraduate School/Majors)

慶應義塾大学, 理工学部電子工学科, 卒業

Research History

From Oct. 2022, To Present
Kyoto University, Graduate School of Informatics Department of Communications and Computer Engineering, Professor

From Jun. 2018, To Sep. 2022
Associate Professor, Graduate School of Engineering, Nagoya University

From Nov. 2020, To Mar. 2022
国立研究開発法人科学技術振興機構さきがけ研究者(兼任)

From Oct. 2015, To Mar. 2019
国立研究開発法人科学技術振興機構さきがけ研究者（兼任）

From 01 Oct. 2012, To 31 May 2018
Lecturer, Graduate School of Engineering, Nagoya University

From Apr. 2013, To Sep. 2013
英国インペリアルカレッジロンドン客員研究員

From 01 Apr. 2010, To 30 Sep. 2012
Assistant Professor, Graduate School of Engineering, Gunma University

From Apr. 2008, To Mar. 2010
慶應義塾先導研究センター, 共同研究員

From Apr. 2008, To Mar. 2010
グローバルCOEプログラム「アクセス空間基盤支援技術の高度国際連携」リサーチ・アシスタント

From Apr. 2008, To Mar. 2010
日本学術振興会特別研究員 (DC1)

ID,URL

ORCID ID
0000-0002-3813-3955
J-Global ID
201101052284104370
External link
https://www.niitsulab.info/

researchmap URL

https://researchmap.jp/kiichi_niitsu

Last Updated :2025/04/23

Research

Research Topics, Overview of the research

Research Topics
Research on semiconductor integrated circuit design technology for bio/medical applications.
Overview of the research
Aiming to develop non-invasive, high temporal resolution blood glucose measurement by developing integrated sensor technology integrated with power generation sensing

Research Interests

scalable

bioimaging

high speed operation

sensor array

digital circuit

Continuous blood glucose monitoring

analog integrated circuit

Speeding up

biosensor integrated circuit

Power Generation Sensing - Body Shape Integrated Sensor

testability technology

Low power consumption

High frequency circuit technology

Communication circuit technology

3D LSI system

MEMS

health care

biosensor

CMOS

Research Areas

Manufacturing technology (mechanical, electrical/electronic, chemical engineering), Electronic devices and equipment

Papers

A 22nm CMOS 0.000005mm2 0.25V 2.3pW ISFET Front-End Using Low-Gate-Leakage Thick-Gate- Oxide Transistors for Energy-Efficient Small- Formfactor Ph Monitoring
Hiroaki Kitaike; Ruilin Zhang; Hironori Tagawa; Kento Okamura; Kei Awano; You Wu; Teruaki Ono; Kohei Sakamoto; Jin Nakamura; Masaya Kaneko; Yuta Kimura; Hiroaki Nakamura; Kunyang Liu; Shufan Xu; Hirofumi Shinohara; Kiichi Niitsu
IEEE International NEWCAS Conference, Jun. 2025, Last author, Corresponding author

Multipath Signal-Selective Metasurface: Passive Time-Varying Interlocking Mechanism to Vary Spatial Impedance for Signals with the Same Frequency
Kaito Tachi; Kota Suzuki; Kairi Takimoto; Shunsuke Saruwatari; Kiichi Niitsu; Ryo Ikeya; Tayaallen Ramachandran; Atsuko Nagata; Peter Njogu; Hiroki Wakatsuchi
Physical Review Letters, Feb. 2025

A 22nm CMOS 0.034mm2 0.4V 1.3nW Frequency-Recording IC with 400-Bit Data-Storing Shift Registers Using Burst-Pulse Counting and Reference Pulse Generation for Stand-Alone Continuous Glucose Monitoring Contact Lenses
Kei Awano; You Wu; Kento Okamura; Teruaki Ono; Kohei Sakamoto; Hiroaki Kitaike; Hironori Tagawa; Jin Nakamura; Masaya Kaneko; Yuta Kimura; Hiroaki Nakamura; Shufan Xu; Ruilin Zhang; Kunyang Liu; Hirofumi Shinohara; Kiichi Niitsu
IEEE Latin American Symposium on Circuits and Systems (LASCAS) 2025, Feb. 2025, Last author, Corresponding author

Design of 0.9-2.6pW 0.1-0.25V 22nm 2-bit Supply-to-Digital Converter Using Always-Activated Supply-Controlled Oscillator and Supply-Dependent-Activation Buffers for Bio-Fuel-Cell-Powered-and-Sensed Time-Stamped Bio-Recording
Hiroaki Kitaike; Hironori Tagawa; Shufan Xu; Ruilin Zhang; Kunyang Liu; Kiichi Niitsu
ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2025), Jan. 2025, Last author, Corresponding author

A 0.00027 mm2 1.2V 0.089pJ/bit 10Gbps 41.6 GHz Standard-Cell-Based Passive-Less Wireless OOK Transmitter with On-Chip Antenna in 12nm FinFET
Hiroaki Kitaike; Hironori Tagawa; Masaya Kaneko; Jin Nakamura; Shufan Xu; Ruilin Zhang; Kunyang Liu; Hiroki Wakatsuchi; Kyoya Takano; Hirofumi Shinohara; Kiichi Niitsu
IEEE Nordic Circuits and Systems Conference (NorCAS), Oct. 2024, Last author, Corresponding author

A 2 Hz, 1.2-2 V, 0.22-9 nW, 0.007 mm2 65 nm CMOS Multiple-Output Down-Converter-Less Clock Generator Using Stacked a Ring Oscillator and Frequency Dividers for Scaling-Friendly IoTs
You Wu; Kei Awano; Kento Okamura; Teruaki Ono; Kohei Sakamoto; Hiroaki Kitaike; Hironori Tagawa; Jin Nakamura; Masaya Kaneko; Yuta Kimura; Hiroaki Nakamura; Shufan Xu; Ruilin Zhang; Kunyang Liu; Hirofumi Shinohara; Kiichi Niitsu
IEEE Nordic Circuits and Systems Conference (NorCAS), Oct. 2024, Last author, Corresponding author

A 115mV 300fW 0.24Hz 0.00012mm2 Schmitt-Trigger Ring Oscillator Using Dynamic Leakage Suppression with Cold Start Capability in 22nm CMOS
Yoshiki Kiyobayashi; Hiroaki Kitaike; Jin Nakamura; Masaya Kaneko; Hironori Tagawa; Kento Okamura; Kei Awano; You Wu; Teruaki Ono; Kohei Sakamoto; Shufan Xu; Hiroaki Nakamura; Yuta Kimura; Kunyang Liu; Ruilin Zhang; Hirofumi Shinohara; Kiichi Niitsu
IEEE International Conference on Electronics, Circuits and Systems (ICECS 2024), Nov. 2024, Last author, Corresponding author

A 0.04 mm^2 22nm CMOS Fully-Integrated Supply-Modulated OOK Transmitter Using Self-Oscillating Voltage Doubler, Charge Pump, and Voltage Detector
Mitsuru Terauchi; Hiroaki Kitaike; Hironori Tagawa; Kiichi Niitsu
IEEE International Conference on Electronics, Circuits and Systems (ICECS 2024), Nov. 2024, Last author, Corresponding author

De-correlation and De-bias Post-processing Circuits for True Random Number Generator
Ruilin Zhang; Haochen Zhang; Xingyu Wang; Ye Ziyang; Kunyang Liu; Shinichi Nishizawa; Kiichi Niitsu; Hirofumi Shinohara
IEEE International Symposium on Integrated Circuits and Systems (ISICAS 2024), Oct. 2024

A BER-Modulated Inductive-Coupling Transceiver Using Dynamic Intermediate Interference Control Technique for Low-Power Communication
Ge Xu; Kenya Hayashi; Shigeki Arata; Shunya Murakami; Dang Cong Bui; Atsuki Kobayashi; Kiichi Niitsu
2018 IEEE Asia Pacific Conference on Circuits and Systems, APCCAS 2018, 08 Jan. 2019

De-correlation and De-bias Post-processing Circuits for True Random Number Generator
Ruilin Zhang; Haochen Zhang; Xingyu Wang; Ye Ziyang; Kunyang Liu; Shinichi Nishizawa; Kiichi Niitsu; Hirofumi Shinohara
IEEE Transactions on Circuits and Systems I (TCAS-I), Jul. 2024

Future healthy and longevity society enabled by ai/iots and electronics packaging development of stand-Alone continuous glucose monitoring contact lenses
Niitsu, K.
Journal of Japan Institute of Electronics Packaging, 2020

Energy-autonomous supply-sensing biosensor platform using CMOS electronics and biofuel cells
Niitsu, K.
Smart Sensors at the IoT Frontier, 2017

Wireless power delivery
Niitsu, K.
Handbook of Power Management Circuits, 2016

A 0.9-2.6pW 0.1-0.25V 22nm 2-bit Supply-to-Digital Converter Using Always-Activated Supply-Controlled Oscillator and Supply-Dependent-Activation Buffers for Bio-Fuel-Cell-Powered-and-Sensed Time-Stamped Bio-Recording
Hiroaki Kitaike; Masaharu Inada; Mitsuru Terauchi; Hironori Tagawa; Ryosuke Nagai; Shufan Xu; Ruilin Zhang; Kunyang Liu; Kiichi Niitsu
IEEE Symposium on VLSI Technology and Circuits (VLSI), Jun. 2024, Last author

A Latch-based Stochastic Number Generator for Stochastic Computing of Extended Naïve Bayesian Network
Ruilin Zhang; Xiaoyang Jun; Jiawei Liu; Xingyu Wang; Shufan Xu; Kunyang Liu; Shinichi Nishizawa; Kiichi Niitsu; Hirofumi Shinohara
IEEE International Symposium on VLSI Design, Automation and Test (VLSI-DAT), Apr. 2024

A Stand-Alone Continuous Glucose Monitoring Contact Lens Using Glucose-Fuel Cell and CMOS LSI Enabling Memory And Passive-Wireless Readout With Hypoglycemia Predictive Alert
Kiichi Niitsu
17th International Conference on Advanced Technologies & Treatments for Diabetes, Mar. 2024, Lead author

A Continuous Multiple-Timestep Blood Glucose Level Prediction System Using Stacked LSTM for High-Accuracy Hypoglycemia Alerting in Smart Contact Lenses
Ryosuke Nagai; Masaharu Inada; Hiroaki Kitaike; Hiroki Tagawa; Mitsuru Terauchi; Tran Minh Quan; Hiroaki Nakamura; Kiichi Niitsu
IEEE International Conference on Data Science and Engineering in Healthcare, Medicine & Biology, Dec. 2023, Corresponding author

A 65-nm CMOS Millimeter-Wave Ear-Worn Non-Invasive Continuous Glucose Monitoring Chipset Using a 0.17mm² 72mW Transmitter and a 0.75mm² 80mW Direct-Conversion Receiver
Kiichi Niitsu, Koki Fukushima, Yuichi Hiraoka, Hidenori Urawa, Yuya Osaki, Masaya Kaneko, Jin Nakamura, Hideo Yoshikawa, Yutaka Ozawa
IEEE Latin American Symposium on Circuits and Systems (LASCAS 2024), Feb. 2024, Lead author

A 0.37 V 126 nW 0.29 mm2 65-nm CMOS Biofuel-Cell-Modulated Biosensing System Featuring an FSK-PIM-Combined 2.4 GHz Transmitter for Continuous Glucose Monitoring Contact Lenses
Guowei Chen; Akiyoshi Tanaka; Kiichi Niitsu
Asia and South Pacific Design Automation Conference (ASP-DAC 2024), Jan. 2024

A 0.063-mm^2 1.75-nW Biofuel Cell-Input Biosensing/Data-Storing System with 5.5-GHz Wireless Backscatter Data-Readout in 65-nm CMOS for Self-Powered Smart Contact Lenses
Akiyoshi Tanaka; Guowei Chen; Kiichi Niitsu
2023 IEEE Biomedical Circuits and Systems Conference, Oct. 2023

A 351pW Stand-By Power 0.017mm2 37.4GHz LC Oscillator-Based OOK Transmitter Using Low-Leakage Switch in 22nm Planer CMOS
Kiichi Niitsu; Jin Nakamura; Masaya Kaneko; Yuya Osaki; Hiroki Wakatsuchi
International Conference on Solid State Devices and Materials (SSDM2023), Sep. 2023

A Battery-Less 0.37 V 126 nW 0.29 mm² 65-nm CMOS Biofuel-Cell-Modulated Biosensing System Featuring an FSK-PIM-Combined 2.4 GHz Transmitter for Continuous Glucose Monitoring Contact Lenses
Guowei Chen; Akiyoshi Tanaka; Kiichi Niitsu
2023 IEEE International Symposium on Circuits and Systems (ISCAS), 21 May 2023

Design and analysis for the SPICE parameters of waveform-selective metasurfaces varying with the incident pulse width at a constant oscillation frequency
Shiori Imai; Haruki Homma; Kairi Takimoto; Mizuki Tanikawa; Jin Nakamura; Masaya Kaneko; Yuya Osaki; Kiichi Niitsu; Yongzhi Cheng; Ashif Aminulloh Fathnan; Hiroki Wakatsuchi
Scientific Reports, 03 May 2023

A 4.5-mW 22-nm CMOS Label-Free Frequency-Shift 3×3×2 3D Biosensor Array Using Vertically-Stacked 60-GHz LC Oscillators
Akiyoshi Tanaka; Guowei Chen; Kiichi Niitsu
IEEE International Symposium on Integrated Circuits and Systems (ISICAS), Oct. 2022

A 22nm CMOS 1.25V 29pW 0.000013 mm2 Supply Voltage Detector Using Stacked 3 Thick-Gate-Oxide PMOSs and Dynamic Leakage Suppression Buffer
Yuma Hayashi; Kiichi Niitsu
International Conference on Solid State Devices and Materials (SSDM 2022), Sep. 2022

A 0.00023 mm² 1.2V 0.48mW 18GHz Passive-Less Digital Wireless Transmitter with On-Chip Antenna in 22nm Bulk CMOS
Shinichi Ito; Akiyoshi Tanaka; Guowei Chen; Xujiaming Chen; Kiichi Niitsu
2022 IEEE 65th International Midwest Symposium on Circuits and Systems (MWSCAS), 07 Aug. 2022

A 4.8-mW Label-free Frequency-shift 3×3×2 3D Biosensor Array with Vertically-stacked 60-GHz LC Oscillators in 22-nm CMOS
Akiyoshi Tanaka; Guowei Chen; Kiichi Niitsu
2022 IEEE 65th International Midwest Symposium on Circuits and Systems (MWSCAS), 07 Aug. 2022

Design of Wideband CMOS Biosensor with Active-Inductor-Based VCO for DetectingCTCs and Exosomes
T. Tsujimura; G. Chen; Y. Hayashi; S. Kato; K. Niitsu
ISPlasma2022/IC-PLANTS2022, Mar. 2022

CMOS-Based Biosensor Using Broadband Tunable Active-Inductor-Based VCO with γ-Dispersion for Detecting CTCs and Exosomes
Takuya Tsujimura; Kiichi Niitsu
IEEE Latin American Symposium on Circuits and Systems (LASCAS 2022), Mar. 2022

22nm CMOS pW Standby Power Flip-Flops with/without Security using Dynamic Leakage Suppression Logic
Huy Duong; Guowei Chen; Kiichi Niitsu
IEEE Latin American Symposium on Circuits and Systems (LASCAS 2022), Mar. 2022

An Ultra-Low Power 22 nm Self-Oscillating Voltage Doubler With Dynamic Leakage-Suppression Logic
Sora Kato; Guowei Chen; Kiichi Niitsu
2022 IEEE 13th Latin America Symposium on Circuits and System (LASCAS), 01 Mar. 2022

A 52.3% Peak Efficiency 22nm CMOS Low-Power Light-Adaptive Self-Oscillating Voltage Doubler Using Scalable Dynamic Leakage-Suppression Logic
Xujiaming Chen; Guowei Chen; Xinyang Yu; Yue Wang; Kiichi Niitsu
2022 IEEE 13th Latin America Symposium on Circuits and System (LASCAS), 01 Mar. 2022

A 4.5-mW 22-nm CMOS Label-Free Frequency-Shift 3 × 3 × 2 3-D Biosensor Array Using Vertically Stacked 60-GHz LC Oscillators
Tanaka, A.; Chen, G.; Niitsu, K.
IEEE Transactions on Circuits and Systems II: Express Briefs, 2022

Design and Experimental Verification of a 2.1 nW 0.018 mm²Slope ADC-Based Supply Voltage Monitor for Biofuel-Cell-Powered Supply-Sensing Systems in 180-nm CMOS
Chen, G.; Chen, X.; Niitsu, K.
IEICE Transactions on Electronics, 2022

A 0.5-mm²Solar Cell-Powered Biofuel Cell-Input Biosensing System with LED Driving for Stand-Alone RF-Less Continuous Glucose Monitoring Contact Lens
Chen, G.; Wang, Y.; Quan, T.M.; Matsuyama, N.; Tsujimura, T.; Niitsu, K.
IEEE Solid-State Circuits Letters, 2022

A FSK Wireless Transmitter in 22-nm CMOS for Biomedical Applications with On-Chip Photodiode
Yuma Hayashi; Guowei Chen; Kiichi Niitsu
in Proc. IEICE International Conference on Emerging Technologies for Communications (ICETC), Dec. 2021

A Solar-Cell-Assisted, 99% Biofuel Cell Area Reduced, Biofuel-Cell-Powered Wireless Biosensing System in 65 nm CMOS for Continuous Glucose Monitoring Contact Lenses
Chen, G.; Niitsu, K.
IEICE Transactions on Electronics, 2022

A 4.8mW 22nm CMOS Fully-Integrated 60-GHz 3×3×2 3D Frequency-Shift Biosensor Array Using Vertically-Stacked LC Oscillators
Akiyoshi Tanaka; Guowei Chen; Kiichi Niitsu
2021 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Nov. 2021

A 0.2V 0.97nW 0.011mm^2 Fully-Passive mHBC Tag Using Intermediate Interference Modulation in 65nm CMOS
Akiyoshi Tanaka; Guowei Chen; Kiichi Niitsu
2021 28th IEEE International Conference on Electronics, Circuits, and Systems (ICECS), Nov. 2021

A 0.5 mm2 0.31 V/0.39 V 28 nW/144 nW 65 nm CMOS Solar Cell-Powered Biofuel Cell-Input Biosensing System with PIM/PDM LED Driving for Stand-Alone RF-Less Continuous Glucose Monitoring Contact Lens
Guowei Chen; Xinyang Yu; Yue Wang; Tran Minh Quan; Naofumi Matsuyama; Takuya Tsujimura; Md. Zahidul Islam; Kiichi Niitsu
ESSCIRC 2021 - IEEE 47th European Solid State Circuits Conference (ESSCIRC), 13 Sep. 2021

A 22nm CMOS 0.2V 13.3nW 16T SRAM Using Dynamic Leakage Suppression and Half-Selected Free Technique
Yue Wang; Guowei Chen; Xinyang Yu; Xujiaming Chen; Kiichi Niitsu
2021 IEEE Asia Pacific Conference on Circuit and Systems (APCCAS), Sep. 2021

A 65-nm CMOS 0.4 V 49.6 nW Voltage Monitor for Small-Form-Factor Biomedical IoT Applications
Xinyang Yu; Guowei Chen; Yue Wang; Xujiaming Chen; Kiichi Niitsu
2021 IEEE Asia Pacific Conference on Postgraduate Research in Microelectronics and Electronics (PrimeAsia), Sep. 2021

Structure and properties of nanocarbons-encapsulated WC synthesized by solution plasma process in palm oils
Zahidul Islam; Anyarat Watthanaphanit; Sangwoo Chae; Kiichi Niitsu; Nagahiro Saito
Materials Express, 01 Sep. 2021

High electrical conductivity and oxidation reduction reaction activity of tungsten carbide/carbon nanocomposite synthesized from palm oil by solution plasma process
Zahidul Islam; Anyarat Watthanaphanit; Sangwoo Chae; Kiichi Niitsu; Nagahiro Saito
Materials Express, 01 Sep. 2021

Design of CMOS Gate Driver Circuit for Power Devices with Smaller Switching Loss Using Bootstrap Technique
Jodo Shota; Niitsu Kiichi
ISPlasma2021, Mar. 2021

Design and Simulation of 33 GHz 65-nm-CMOS Small-Formfactor Direct-Conversion Receiver for Non-Invasive Continuous Glucose Monitoring
Takuya Tsujimura; Shunya Murakami; Guowei Chen; Md. Islam; Kiichi Niitsu
ISPlasma2021, Jan. 2021

Simulation Comparison of Two Tyeps of CMOS-Based Biosensors for Detecting CTCs and Exosomes
Shunya Murakami; Takuya Tsujimura; Guowei Chen; Md. Zahidul Islam; Kiichi Niitsu
ISPlasma2021, Jan. 2021

A 0.5 mm² Ambient Light-Driven Solar Cell-Powered Biofuel Cell-Input Biosensing System with LED Driving for Stand-Alone RF-Less Continuous Glucose Monitoring Contact Lens
Guowei Chen; Xinyang Yu; Yue Wang; Tran Minh Quan; Naofumi Matsuyama; Takuya Tsujimura; Kiichi Niitsu
2022 27th Asia and South Pacific Design Automation Conference (ASP-DAC), 17 Jan. 2022

A simple gate driver design for GaN-based switching devices with improved surge voltage and switching loss at 1 MHz operation
Shota Jodo; Toshihiro Iwaki; Kosuke Uchiyama; Md. Zahidul Islam; Kensuke Kataoka; Yuki Hayakasa; Jun Imaoka; Masayoshi Yamamoto; Kiichi Niitsu
Japanese Journal of Applied Physics, 01 Jan. 2021

Widely Tunable CMOS-Based Biosensor with an Active-Inductor-Based VCO for Detecting CTCs and Exosomes
Shunya Murakami; Takuya Tsujimura; Guowei Chen; Md Zahidul Islam; Kiichi Niitsu
2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Nov. 2020

Design of 33 GHz 65-nm-CMOS Small-Formfactor Direct-Conversion Receiver for Non-Invasive Continuous Glucose Monitoring
Takuya Tsujimura; Shunya Murakami; Guowei Chen; Kiichi Niitsu
2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Nov. 2020

Simulation Study of Full Passive Magnetic Human Body Communication in 65-nm CMOS Technology for Temperature Sensing Application
Sitong Ye; Atsuki Kobayashi; Guowei Chen; Kiichi Niitsu
2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Nov. 2020

Design of Fully-Integrated Self-Powered FM Transmitter Using On-Chip Photodiodes in 65-nm CMOS
Kosuke Uchiyama; Guowei Chen; Kiichi Niitsu
2020 27th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Nov. 2020

A 72-nW 440-mV Time Register Using Stacked-NMOS-Switched Gated Delay Cell in Biomedical Applications
Guowei Chen; Dang Cong Bui; Xin Yang Yu; Md. Zahidul Islam; Atsuki Kobayashi; Kiichi Niitsu
2020 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), Oct. 2020

Design of an Electrical Equivalent Circuit Model of a CMOS-Process-Compatible Glucose Fuel Cell as a Power Supply in Integrated Circuits
Z. Islam; S. Arata; K. Hayashi; X. Ge; N. Matsuyama; S. Murakami; A. Kobayashi; H. Cheng; K. Niitsu
Nanoscience and Nanotechnology Letters, Sep. 2020

Low-power inductive-coupling transmitter using supply-insensitive auxiliary driving switch under supply-voltage fluctuation
Nishio, Y.; Kobayashi, A.; Niitsu, K.
Sensors and Materials, 10 Aug. 2020

Fabrication of Needle-type Solid-state CMOS-compatible Glucose Fuel Cell Using Carbon Nanotube for Biomedical Application
Md. Zahidul Islam; Shigeki Arata; Kenya Hayashi; Atsuki Kobayashi; Kiichi Niitsu
Sensors and Materials, 10 Aug. 2020

Design and verification of stochastic oscillator using multiple ring oscillators and OR-gate for low-voltage operation in 65 nm CMOS
Murakami, S.; Hayashi, K.; Arata, S.; Xu, G.; Bui, C.D.; Kobayashi, A.; Niitsu, K.
Sensors and Materials, 10 Aug. 2020

Design and theoretical analysis of Bit Error Rate (BER)-modulated inductive-coupling transceiver using dynamic intermediate interference control technique for low-power communication
Xu, G.; Hayashi, K.; Arata, S.; Murakami, S.; Bui, D.C.; Kobayashi, A.; Niitsu, K.
Sensors and Materials, 10 Aug. 2020

Low-Voltage Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS
Atsuki Kobayashi; Kiichi Niitsu
IEEE Open Journal of Circuits and Systems, Jul. 2020

A needle-type complementary metal oxide semiconductor-compatible glucose fuel cell fabricated by carbon nanohorns for biomedical applications
Islam, Md.Z.; Matsuyama, N.; Chen, G.; Kobayashi, A.; Momoi, Y.; Niitsu, K.
Electrochemistry, 05 Jul. 2020

Biomedical Application Via Implantable Devices By CMOS-Compatible Glucose Fuel Cells Using Carbon Nano Horn
Md. Zahidul Islam; Shigeki Arata; Kenya Hayashi; Atsuki Kobayashi; Yuichi Momoi; Kiichi Niitsu
ECS Transactions, 25 Jun. 2020

Monte Carlo simulation driven time resolved photon fluence analysis
Kazanci, H.O.; Niitsu, K.
Optoelectronics Letters, May 2020

Biomedical Application Via Implantable Devices By CMOS-Compatible Glucose Fuel Cells Using Carbon Nano Horn
Md. Zahidul Islam; Shigeki Arata; Kenya Hayashi; Atsuki Kobayashi; Yuichi Momoi; Kiichi Niitsu
in proc. International Meeting on Chemical Sensors (IMCS 2020), May 2020

Wearable devices for biosensing applications via CMOS compatible glucose fuel cell fabricated by carbon nanohorns
Md. Zahidul Islam; Shigeki Arata; Kenya Hayashi; Atsuki Kobayashi; Yuichi Momoi and; Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

A Widely Tunable CMOS VCO With an Actuve Inductor for Analyzing CTCs
Taiki Nakanishi; Shunya Murakami; Huseyin Ozgur Kazanci; Atsuki Kobayashi; Md. Zahidul Islam; Kiichi Niitsu
n proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

Design of Solar-Cell-Powered CMOS Image Sensor Array for Energy-Autonomous Optical Imaging Application
Kosuke Uchiyama; Shota Jodo; Shunya Murakami; Md.Zahidul Islam; Atsuki Kobayashi; Kiichi Niitsu
n proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

A 180-nm CMOS Gate DriverUsing BootstrapTechniqueWith ShortSlew Ratefor13.56-MHzGaN-Based Power Electronics Applications
Shota Jodo; Toshihiro Iwaki; Kosuke Uchiyama; Md.Zahidul Islam; Jun Imaoka; Masayoshi Yamamotoand; Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

Simulation Study of Full Passive Magnetic Human Body Communication in 65-nm CMOS Technology
Sitong Ye; Kiichi Niitsu
n proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

Fully-Integrated Supply-Modulated OOK Transmitter for Self-Powered, Fuel-CellEmbedded, and Low-Cost Continuous Glucose Monitoring Contact Lens
Kenya Hayashi; Shigeki Arata; Ge Xu; Shunya Murakami; Atsuki Kobayashi; Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

Low-Voltage Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS
Atsuki Kobayashi; Kiichi Niitsu
IEEE Open Journal of Circuits and Systems, 2020

Open Circuit Voltage and Single Walled Carbon Nanotube (wt%) Dependency in Solid-State Complementary Metal Oxide Semiconductor-Compatible Glucose Fuel Cells
Md. Zahidul Islam; Shigeki Arata; Kenya Hayashi; Atsuki Kobayashi; Kiichi Niitsu
Nanoscience and Nanotechnology Letters, 01 Jan. 2020

Design of a Self-Controlled Dual-Oscillator-Based Supply Voltage Monitor for Biofuel-Cell-Combined Biosensing Systems in 65-nm CMOS and 55-nm DDC CMOS
Kobayashi, A.; Hayashi, K.; Arata, S.; Murakami, S.; Xu, G.; Niitsu, K.
IEEE Transactions on Biomedical Circuits and Systems, Dec. 2019

Verification of Inductive-Coupling-Based CMOS Biosensor Focusing Dielectric Loss of β-Dispersion for Detecting Exosomes Through Electromagnetic Simulation
Syunya Murakami; Taiki Nakanishi; Atsuki Kobayashi; Md. Zahidul Islam; Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2019), Nov. 2019

A Solar-Cell-Assisted, 99.66% Biofuel Cell Area Reduced, Biofuel-Cell-Powered Wireless Biosensing System in 65-nm CMOS for Continuous Glucose Monitoring Contact Lenses
Atsuki Kobayashi; Kenya Hayashi; Shigeki Arata; Ge Xu; Shunya. Murakami; Cong Dang Bui; Tran Minh Quan; Md. Zahidul Islam; Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2019), Nov. 2019

A LC-Voltage-Controlled-Oscillator-Based BiosensorFocusing on β-Dispersion for Detecting Exosome in180 nm CMOS
Shunya Murakami; Taiki Nakanishi; Kenya Hayashi; Atsuki Kobayashi; Md. ZahidulIslam; Kiichi Niitsu
in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2019), Nov. 2019

A 2.1-nW Burst-Pulse-Counting Supply VoltageMonitor for Biofuel-Cell-Combined Biosensing Systems in 180-nm CMOS
Atsuki Kobayashi; Kenya Hayashi; Shigeki Arata; Shunya Murakami; Ge Xu; Md. Zahidul Islam; Kiichi Niitsu
in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2019), Oct. 2019

A 40-GHz Fully-Integrated CMOS-Based Biosensor Circuit With an On-Chip Vector Network Analyzer for Circulaitng Tumor Cells Analysis
Taiki Nakanishi; Shunya Murakami; Atsuki Kobayashi; Md. Zahidul Islam; Kiichi Niitsu
in proc. 2019 IEEE NorCAS Conference, Oct. 2019

1D structural CNH dependency in needle type Solid-state CMOS compatible glu-cose Fuel Cell for open-circuit voltage and their biomedical application
Md. Zahidul Islam; Shigeki Arata; Kenya Hayashi; Atsuki Kobayashi; Yuichi Momoi; Kiichi Niitsu
in Proc. 2019 international Conference on Solid State Devices and Materials, Sep. 2019

Desing of A CML-Based NMOS-Only SelfOscillating Voltage Doubler for Enabling UltraLow Start-Up Voltage in 65-nm CMOS Technology
Ryusei Sakai; Shunya Murakami; Taiki Nakanishi; Md Zahidul Islam; Atsuki Kobayashi; Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

Design of CMOS GaN Gate Driver for 13.56MHz GaN-Based Power Electronics Application in 180nm High-Voltage CMOS Technology
Shota Jodo; Cong Dang Bui; Kosuke Uchiyama; Md Zahidul Islam; Atsuki Kobayashi; Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

Design of On-Chip Integrated Solar Cells in 65nm CMOS Technology for Solar-Cell-Powered Continuous Glucose Monitoring Systems
Kosuke Uchiyama; Shota Jodo; Shunya Murakami; Md Zahidul Islam; Atsuki Kobayashi; Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

A 40-GHz Fully Integrated On-Chip-VNA-based Circulating Tumor Cells Analyzer in 65-nm CMOS Technology
Taiki Nakanishi; Syunya Murakami; Atsuki Kobayashi; Md. Zahidul Islam; Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

Design of Inductive-Coupling-Based CMOS Biosensor Focusing Dielectric Loss of βDispersion for Detecting Exosomes
Shunya Murakami; Taiki Nakanishi; Atsuki Kobayashi; Md. Zahidul Islam; Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

A 385 × 385 µm² 0.165 V 0.27 nW fully-integrated supply-modulated OOK transmitter in 65 nm CMOS for glasses-free, self-powered, and fuel-cell-embedded continuous glucose monitoring contact lens
Hayashi, K.; Arata, S.; Xu, G.; Murakami, S.; Bui, C.D.; Kobayashi, A.; Niitsu, K.
IEICE Transactions on Electronics, 01 Jul. 2019

An FSK inductive-coupling transceiver using 60 mV 0.64 fJ/bit 0.0016 mm² load-modulated transmitter and LC-oscillator-based receiver in 65 nm CMOS for energy-budget-unbalanced application
Hayashi, K.; Arata, S.; Xu, G.; Murakami, S.; Bui, C.D.; Kobayashi, A.; Niitsu, K.
IEICE Transactions on Electronics, 01 Jul. 2019

Enhance OCV of CNH dependency in Solid-state CMOS compatible glucose Fuel Cell for next-generation internet of things (IoT)
Md. Zahidul Islam; Shigeki Arata; Kenya Hayashi; Atsuki Kobayashi; Yuichi Momoi; Kiichi Niitsu
in Proc. Molecular Electronics and Bioelectronics (M&BE), Jun. 2019

A 65-nm CMOS 1.4-nW Self-Controlled Dual-Oscillator-Based Supply Voltage Monitor for Biofuel-Cell-Combined Biosensing Systems
Atsuki Kobayashi; Kenya Hayashi; Shigeki Arata; Shunya Murakami; Ge Xu; Kiichi Niitsu
in Proc. IEEE Symposium on Circuits and Systems (ISCAS 2019), May 2019

A 65-nm CMOS Fully Integrated Analysis Platform Using an On-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window for Analyzing Circulating Tumor Cell and Exosome
Niitsu, K.; Nakanishi, T.; Murakami, S.; Matsunaga, M.; Kobayashi, A.; Karim, N.M.; Ito, J.; Ozawa, N.; Hase, T.; Tanaka, H.; Sato, M.; Kondo, H.; Ishikawa, K.; Odaka, H.; Hasegawa, Y.; Hori, M.; Nakazato, K.
IEEE Transactions on Biomedical Circuits and Systems, Apr. 2019

Yield and open-circuit-voltage enhancement of 0.36 mm² solid-state CMOS-compatible glucose fuel cells by using repeated separator coating
Arata, S.; Hayashi, K.; Ge, X.; Murakami, S.; Bui, C.D.; Kobayashi, A.; Niitsu, K.
Japanese Journal of Applied Physics, 01 Apr. 2019

Design and calibration of a small-footprint, low-frequency, and low-power gate leakage timer using differential leakage technique
Nishio, Y.; Kobayashi, A.; Niitsu, K.
IEICE Transactions on Electronics, 01 Apr. 2019

Various Type of CNT Dispersion Applied to Bio-Fuel Cell for High Yield of Production
Md. Zahidul Islam; Shigeki Arata; Kenya Hayashi; Atsuki Kobayashi; Kiichi Niitsu
in Proc. 11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 12th International Conference on Plasma-Nano Technology & Science (ISPlasma2019 / IC-PLANTS2019), Mar. 2019

0.27nW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Self-Powered and Low-Cost Continuous Glucose Monitoring Contact Lens
Kenya Hayashi; Shigeki Arata; Ge Xu; Shunya Murakami; Cong Dang Bui; Atsuki Kobayashi; Kiichi Niitsu
in Proc. 11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 12th International Conference on Plasma-Nano Technology & Science (ISPlasma2019 / IC-PLANTS2019), Mar. 2019

Design and analysis of a three-dimensional millimeter-wave frequency-shift based CMOS biosensor using vertically stacked spiral inductors in LC oscillators
Matsunaga, M.; Nakanishi, T.; Kobayashi, A.; Nakazato, K.; Niitsu, K.
Analog Integrated Circuits and Signal Processing, Mar. 2019

AI-Based Edge-Intelligent Hypoglycemia Prediction System Using Alternate Learning and Inference Method for Blood Glucose Level Data with Low-periodicity
Tran Minh Quan; Takuyoshi Doike; Dang Cong Bui; Kenya hayashi; Shigeki Arata; Atsuki Kobayashi; Md. Zahidul Islam; Kiichi Niitsu
in IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS 2019), Mar. 2019

2D Optical Imaging Using Photosystem I Photosensor Platform with 32×32 CMOS Biosensor Array
Kiichi Niitsu; Taichi Sakabe; Mariko Miyachi; Yoshinori Yamanoi; Hiroshi Nishihara; Tatsuya Tomo; Kazuo Nakazato
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

Design of 385 x 385 µm2 0.165V 270pW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi; Shigeki Arata; Ge Xu; Shunya Murakami; Cong Dang Bui; Takuyoshi Doike; Maya Matsunaga; Atsuki Kobayashi; Kiichi Niitsu
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

2D Optical Imaging Using Photosystem I Photosensor Platform with 32×32 CMOS Biosensor Array
Kiichi Niitsu; Taichi Sakabe; Mariko Miyachi; Yoshinori Yamanoi; Hiroshi Nishihara; Tatsuya Tomo; Kazuo Nakazato
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

A 65-nm CMOS Fully-Integrated Circulating Tumor Cell and Exosome Analyzer Using an On-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window
Kiichi Niitsu
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

Design and theoretical analysis of a clock jitter reduction circuit using gated phase blending between self-delayed clock edges
Niitsu, K.; Kobayashi, O.; Yamaguchi, T.J.; Kobayashi, H.
IEICE Electronics Express, 2019

Design of Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS
Atsuki Kobayashi; Yuya Nishio; Kenya Hayashi; Shigeki Arata; Kiichi Niitsu
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

A Low-Voltage CMOS Electrophoresis IC Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation
Kiichi Niitsu; Yuuki Yamaji; Atsuki Kobayashi; Kazuo Nakazato
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019., Jan. 2019

Reactive Ion Etching in Development of 0.6mm by 0.6mm CMOS-Compatible Solid-State Glucose Fuel Cell for Small-Form-Factor Biomedical IoT Applications
S. Arata; K. Hayashi; X. Ge; S. Murakami; C. D. Bui; A. Kobayashi; K. Niitsu
Nov. 2018

A 385um × 385um 0.165 V 0.27 nW Fully-Integrated Supply-Modulated OOK CMOS TX in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi; Shigeki Arata; Ge Xu; Shunya Murakami; Dang Cong Bui; Takuyoshi Doike; Maya Matsunaga; Atsuki Kobayashi; Kiichi Niitsu
in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2018), Oct. 2018

Live Demonstration: 385 X 385 µm2 0.165V 270pW Fully-Integrated Supply-Modulated OOK TX in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi; Shigeki Arata; Ge Xu; Shunya Murakami; Dang Cong Bui; Takuyoshi Doike; Maya Matsunaga; Atsuki Kobayashi; Kiichi Niitsu
in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2018), Oct. 2018

A 6.1-nA Fully Integrated CMOS Supply Modulated OOK Transmitter in 55-nm DDC CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Hayashi, K.; Arata, S.; Murakami, S.; Nishio, Y.; Kobayashi, A.; Niitsu, K.
IEEE Transactions on Circuits and Systems II: Express Briefs, Oct. 2018

Energy-autonomous biosensing platform using supply-sensing CMOS integrated sensor and biofuel cell for next-generation healthcare Internet of Things
Niitsu, K.
Japanese Journal of Applied Physics, 01 Oct. 2018

A BER-Modulated 3-Coil Inductive-Coupling Transceiver Using Dynamic Intermediate Interference Control Technique
G. Xu; K. Hayashi; S. Arata; S. Murakami; C. D. Bui; A. Kobayashi; K. Niitsu
Oct. 2018

A Constant-Power Inductive-Coupling Transmitter Using Auxiliary Driving Technique in 65nm SOTB CMOS for Low-Power Supply-Sensing Biosensing Platform toward Healthcare IoTs
Y. Nishio; A. Kobayashi; K. Niitsu
Oct. 2018

A Self-Powered Supply-Sensing Biosensor Platform Using Bio Fuel Cell and Low-Voltage, Low-Cost CMOS Supply-Controlled Ring Oscillator With Inductive-Coupling Transmitter for Healthcare IoT
K. Niitsu; A. Kobayashi; Y. Nishio; K. Hayashi; K. Ikeda; T. Ando; Y. Ogawa; H. Kai; M. Nishizawa; K. Nakazato
IEEE Transactions on Circuits and Systems I, Sep. 2018, Peer-reviewed

10% Yield and 370-mV OCV of 0.36 mm2 Solid-State CMOS-Compatible Glucose Fuel Cell by Using Repeated Separator Coating
S. Arata; K. Hayashi; X. Ge; S. Murakami; D. C. Bui; A. Kobayashi; K. Niitsu
Sep. 2018

A Blood Glucose Level Prediction System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention
T. Doike; K. Hayashi; S. Arata; K. N. Mohammad; A. Kobayashi; K. Niitsu
IEEE International NEWCAS Conference 2018, Jun. 2018

A 350-mV, under-200-ppm allan deviation floor gate-leakage-based timer using an amplifier-less replica-bias switching technique in 55-nm DDC CMOS
Atsuki Kobayashi; Yuya Nishio; Kenya Hayashi; Kazuo Nakazato; Kiichi Niitsu
2018 IEEE Custom Integrated Circuits Conference, CICC 2018, 09 May 2018

Wafer-scale development and experimental verification of 0.36 mm² 228 mV open-circuit-voltage solid-state CMOS-compatible glucose fuel cell
Arata, S.; Hayashi, K.; Nishio, Y.; Kobayashi, A.; Nakazato, K.; Niitsu, K.
Japanese Journal of Applied Physics, 01 Apr. 2018

Energy-autonomous Biomedical IoTs using Plasma-enhanced Bio-fuel Cell and Low-energy CMOS Biosensor
Kiichi Niitsu
in Proc. 10th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 11th International Conference on Plasma-Nano Technology & Science (ISPlasma2018 / IC-PLANTS2018), Mar. 2018

An AI-Enhanced Blood Glucose Sensing System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention
T. Doike; K. Niitsu
Mar. 2018

A 40 GHz fully integrated circuit with a vector network analyzer and a coplanar-line-based detection area for circulating tumor cell analysis using 65 nm CMOS technology
Taiki Nakanishi; Maya Matsunaga; Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
Japanese Journal of Applied Physics, 01 Mar. 2018

Design of an Energy-Autonomous Supply-Sensing Biosensor Platform Using Biofuel Cells and Human-Body-Communication Transmitter
Keisuke Kayano; Maya Matsunaga; Keisuke Itakura; Atsuki Kobayashi; Kiichi Niitsu
in Proc. IEEE Prime Asia 2018., 2018

CMOS集積回路技術を用いたバイオセンサ集積システム
新津葵一
電子情報通信学会 Fundamentals Review, 2018

Design trade-off between spatial resolution and power consumption in CMOS biosensor circuit based on millimeter-wave LC oscillator array
Matsunaga, M.; Kobayashi, A.; Nakazato, K.; Niitsu, K.
Japanese Journal of Applied Physics, Jan. 2018, Peer-reviewed

A 40-GHz fully integrated circulating tumor cell analysis vector network analyzer in 65-nm CMOS technology with coplanar-line-based detection area
T. Nakanishi; M. Matsunaga; A. Kobayashi; K. Nakazato; K. Niitsu
Japanese Journal of Applied Physics, Jan. 2018, Peer-reviewed

Theoretical analysis and simulation study of low-power CMOS electrochemical impedance spectroscopy biosensor in 55 nm deeply depleted channel technology for cell-state monitoring
Keisuke Itakura; Keisuke Kayano; Kazuo Nakazato; Kiichi Niitsu
Japanese Journal of Applied Physics, 01 Jan. 2018, Peer-reviewed

A 6.1-nA Fully Integrated CMOS Supply Modulated OOK Transmitter in 55-nm DDC CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi; Shigeki Arata; Shunya Murakami; Yuya Nishio; Atsuki Kobayashi; Kiichi Niitsu
IEEE Transactions on Circuits and Systems II: Express Briefs, 2018, Peer-reviewed

A Stochastic Oscillator Using Multiple Ring Oscillators and OR-Gate for Low Voltage Operation in 65 nm CMOS
S. Murakami; K. Hayashi; S. Arata; G. Xu; C. D. Bui; A. Kobayashi; K. Niitsu
2018

A HIGH-DENSITY INTEGRATED ODORANT SENSOR ARRAY SYSTEM BASED ON INSECT CELLS EXPRESSING INSECT ODORANT RECEPTORS
S. Nagata; N. Kameshiro; D. Terutsuki; H. Mitsuno; T. Sakurai; K. Niitsu; K. Nakazato; R. Kanzaki; M. Ando
2018 IEEE MICRO ELECTRO MECHANICAL SYSTEMS (MEMS), Jan. 2018

Design and Experimental Verification of a 0.19 V 53 μW 65 nm CMOS Integrated Supply-Sensing Sensor With a Supply-Insensitive Temperature Sensor and an Inductive-Coupling Transmitter for a Self-Powered Bio-sensing System Using a Biofuel Cell
Atsuki Kobayashi; Kei Ikeda; Yudai Ogawa; Hiroyuki Kai; Matsuhiko Nishizawa; Kazuo Nakazato; Kiichi Niitsu
IEEE Transactions on Biomedical Circuits and Systems, Dec. 2017

A scalable time-domain biosensor array using a capacitor-less CMATC and logarithmic cyclic time-attenuation-based TDC with discharge acceleration for high-spatial-resolution bio-imaging
Kei Ikeda; Atsuki Kobayashi; Kiichi Niitsu
2017 24th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Dec. 2017

A 28μm2, 0.11Hz, 4.5pW gate leakage timer using differential leakage technique in 55nm DDC CMOS for small-footprint, low-frequency and low-power timing generation
Yuya Nishio; Atsuki Kobayashi; Kiichi Niitsu
2017 24th IEEE International Conference on Electronics, Circuits and Systems (ICECS), Dec. 2017

Three-Dimensional Millimeter-wave Frequency-shift-based CMOS Biosensor Using Vertically Stacked LC Oscillators
Maya Matsunaga; Taiki Nakanishi; Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
in Proc. IEEE Nordic Circuits and Systems Conference (NorCAS 2017), Oct. 2017

A Fully-Integrated Circulating Tumor Cell Analyzer Using an on-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window in 65-nm CMOS
T. Nakanishi; M. Matsunaga; A. Kobayashi; K. Nakazato; K. Niitsu
Oct. 2017

Application of Magnetic Arrangement of Microbeads for CMOS Biosensor Array Sensitivity
E. Ushijima; S. Fujimoto; K. Niitsu; K. Nakazato
Oct. 2017

Three-dimensional millimeter-wave frequency-shift-based CMOS biosensor using vertically stacked LC oscillators
Maya Matsunaga; Taiki Nakanishi; Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

Wafer-Scale Development of 0.36 mm^2 228mV Open-Circuit-Voltage Solid-State CMOS-Compatible Glucose Fuel Cell for Healthcare IoT Application
Shigeki Arata; Kenya Hayashi; Yuya Nishio; Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
in Proc. International Conference on Solid State Devices and Materials (SSDM 2017), Sep. 2017

Design and electrochemical measurement of a current-mode analog-to-time converter with short-pulse output capability using local intra-cell activation for high-speed time-domain biosensor array
Kei Ikeda; Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
Analog Integrated Circuits and Signal Processing, Sep. 2017

Sub-1-V CMOS-Based Electrophoresis Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation
Yuuki Yamaji, Kazuo Nakazato, and Kiichi Niitsu
IEICE TRANSACTIONS ON ELECTRONICS, Jun. 2017, Peer-reviewed

Study on relationship between inductance and power consumption in bio integrated sensor circuit based on LC-oscillator using millimeter wave
M. Matsunaga; A. Kobayashi; K. Nakazato; K. Niitsu
Jun. 2017

A Fully Integrated CMOS Millimeter Wave Biosensor Circuit with An On-Chip Vector Network Analyzer for Circulating Tumor Cell (CTC) Analysis
T. Nakanishi; A. Kobayashi; K. Nakazato; K. Niitsu
Jun. 2017

Enhancement of Open Circuit Voltage and Power of Implantable CMOS-Compatible Glucose Fuel Cell by Employing Pt-Supported on Nanographene in Anodic Catalyst
K. Niitsu; T. Ando; T. Amano; A. Kobayashi; K. Takeda; H. Kondo; M. Hori; K. Nakazato
Jun. 2017

Design of an energy-autonomous supply-sensing biosensor platform using biofuel cells and human-body-communication transmitter
K. Kayano; IK. Itakura; A. Kobayashi; Y. Nishio; K. Nakazato; K. Niitsu
Mar. 2017

A CMOS Electrochemical Impedance Spectroscopy Biosensor in 55nm DDC Technology for High-Sensitivity Cell-State Monitoring
K. Itakura; K. Kayano; K. Nakazato; K. Niitsu
Mar. 2017

A CMOS-based bacteria-counting sensor with 1024 × 1024 baceteria-sized microelectrode array and current integration circuit
K. Gamo; K. Nakazato; K. Niitsu
Mar. 2017

NASBA Amplification and Detection of Micro-RNA Using Plasma-Treated CMOS FET-Based Redox Potential Sensor Array
M. Kawase; K. Nakazato; K. Niitsu
Mar. 2017

Design and Physical Implementation of Pad-Less CMOS Biosensor Array Chip for Low-Cost Packaging-Less Bio-Imaging Platform
Y. Hayashi; K. Nakazato; K. Niitsu
Mar. 2017

Biosensor Integrated Circuits Using CMOS Technology
Kiichi Niitsu; Kazuo Nakazato
IEEJ Transactions on Sensors and Micromachines, 2017

Biosensor Integrated Circuits Using CMOS Technology
Kiichi Niitsu; Kazuo Nakazato
IEEJ Transactions on Sensors and Micromachines, 2017

A Current-Integration-Based CMOS Amperometric Sensor with 1024 × 1024 Bacteria-Sized Microelectrode Array for High-Sensitivity Bacteria Counting
Kohei GAMO; Kazuo NAKAZATO; Kiichi NIITSU
IEICE Transactions on Electronics, 2017

Design and Analysis of Scalability in Current-Mode Analog-to-Time Converter for an Energy-Efficient and High-Resolution CMOS Biosensor Array
Kei IKEDA; Atsuki KOBAYASHI; Kazuo NAKAZATO; Kiichi NIITSU
IEICE Transactions on Electronics, 2017

Energy-efficient and low-voltage design methodology for a supply-sensing CMOS biosensor using biofuel cells for energy-autonomous healthcare applications
Atsuki Kobayashi; Kei Ikeda; Kazuo Nakazato; Kiichi Niitsu
Japanese Journal of Applied Physics, 01 Jan. 2017

Enhancement in open-circuit voltage of implantable CMOS-compatible glucose fuel cell by improving the anodic catalyst
Kiichi Niitsu; Takashi Ando; Atsuki Kobayashi; Kazuo Nakazato
Japanese Journal of Applied Physics, 01 Jan. 2017

Design, experimental verification, and analysis of a 1.8-V-input-range voltage-to-current converter using source degeneration for low-noise multimodal CMOS biosensor array
Kiichi Niitsu; Kei Ikeda; Keita Muto; Kazuo Nakazato
Japanese Journal of Applied Physics, 01 Jan. 2017

Design, theoretical analysis, and experimental verification of a CMOS current integrator with 1.2 × 2.05 µm2microelectrode array for high-sensitivity bacterial counting
Kohei Gamo; Kazuo Nakazato; Kiichi Niitsu
Japanese Journal of Applied Physics, 01 Jan. 2017

Design and experimental verification of CMOS magnetic-based microbead detection using an asynchronous intra-chip inductive-coupling transceiver
Kiichi Niitsu; Atsuki Kobayashi; Kohei Yoshida; Kazuo Nakazato
Japanese Journal of Applied Physics, 01 Jan. 2017

Design of an Energy-Autonomous Bio-Sensing System Using a Biofuel Cell and 0.19V 53 mu W Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter
Atsuki Kobayashi; Kei Ikeda; Yudai Ogawa; Matsuhiko Nishizawa; Kazuo Nakazato; Kiichi Niitsu
2017 22ND ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC), Jan. 2017

A Scalable Time-Domain Biosensor Array Using Logarithmic Cyclic Time-Attenuation-Based TDC for High-Resolution and Large-Scale Bio-Imaging
Kei Ikeda; Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
2017 22ND ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC), Jan. 2017

A Current-Integration-Based CMOS Amperometric Sensor with 1.2 mu m x 2.05 mu m Electroless-Plated Microelectrode Array for High-Sensitivity Bacteria Counting
Kohei Gamo; Kazuo Nakazato; Kiichi Niitsu
2017 22ND ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC), Jan. 2017

Advanced Plasma Science and Its Applications for Nitride and Nanomaterials
Japanese Journal of Applied Physics, 01 Jan. 2017

Well-Shaped Microelectrode Array Structure for High-Density CMOS Amperometric Electrochemical Sensor Array
Kiichi Niitsu; Tsuyoshi Kuno; Masayuki Takihi; Kazuo Nakazato
IEICE TRANSACTIONS ON ELECTRONICS, Jun. 2016

Bacteria counting using electoless-plated 1024 × 1024 microelectrode array and CMOS-based current integration circuit
Kohei Gamo; Kiichi Niitsu; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

A CMOS Magnetic-Based Beads Recognition Circuit for Multi-Object Biosensing
Hisashi Yokoi; Kiichi Niitsu; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Low-voltage Electrophoresis on a CMOS Platform with 32x32 Sample/Hold Cell Array
Yuuki Yamaji; Kiichi Niitsu; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Bioluminescence Detection using Photosystem I Bio-photosensor
Taichi Sakabe; Kiichi Niitsu; Mariko Miyachi; Yoshinori Yamanoi; Hiroshi Nishihara; Tatsuya Tomo; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Enhancement of Open Circuit Voltage of Implantable CMOS-Compatible Glucose Fuel Cell by Improving the Anodic Catalyst
Takashi Ando; Kazuo Nakazato; Kiichi Niitsu
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Energy-Autonomous, Disposable, Supply-Sensing Biosensor using Bio-Fuel Cell and Low-Voltage All-Digital CMOS Supply-controlled Ring Oscillator with Inductive-Coupling Transmitter
Kiichi Niitsu; Atsuki Kobayashi; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Pad-Less CMOS Biosensor Array Chip for Low-Cost Packaging-Less Bio-Imaging Platform
Yuya Hayashi; Kiichi Niitsu; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Temparature-Regulated CMOS Biosensor Platform for Portable MicroRNA Amplification and Detection
Masaki Kawase; Kiichi Niitsu; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Design Methodology of Supply-Sensing CMOS Biosensor Using Bio-Fuel Cell for Energy-Autonomous Healthcare Application
Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Analysis on Scalability of Current-Mode Analog-to-Time Converter for a High-Resolution CMOS Biosensor Array
Kei Ikeda; Kazuo Nakazato; Kiichi Niitsu
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Design of CMOS Magnetic-Based Microbeads Detection Using an Asynchronous Intra-Chip Inductive-Coupling Transceiver
Kiichi Niitsu; Kohei Yoshida; Atsuki Kobayashi; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Design of a CMOS Voltage-to-Current Converter with Dynamic Range Enhancement Using Source Degeneration
Kiichi Niitsu; Kei Ikeda; Keita Muto; Kazuo Nakazato
in Proc. 8th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 8th International Conference on Plasmas-Nano Technology & Science (ISPlasma2016 / IC-PLANTS2016), Mar. 2016

Design and experimental verification of low-voltage two-dimensional CMOS electrophoresis platform with 32×32 sample/hold cell array
Yamaji, Y.; Niitsu, K.; Nakazato, K.
Japanese Journal of Applied Physics, 01 Mar. 2016

A low-power inverter-based CMOS level-crossing analog-to-digital converter for low-frequency biosignal sensing
Suiki Tanaka; Kiichi Niitsu; Kazuo Nakazato
JAPANESE JOURNAL OF APPLIED PHYSICS, Mar. 2016

Design and experimental demonstration of low-power CMOS magnetic cell manipulation platform using charge recycling technique
Kiichi Niitsu; Kohei Yoshida; Kazuo Nakazato
JAPANESE JOURNAL OF APPLIED PHYSICS, Mar. 2016

A Current-Mode Analog-to-Time Converter with Short-Pulse Output Capability Using Local Intra-Cell Activation for High-Speed Time-Domain Biosensor Array
Kei Ikeda; Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
2016 2ND IEEE NORDIC CIRCUITS AND SYSTEMS CONFERENCE (NORCAS), 2016, Peer-reviewed

Design of an Energy-Autonomous, Disposable, Supply-Sensing Biosensor Using Bio Fuel Cell and 0.23-V 0.25-mu m Zero-Vth All-Digital CMOS Supply-Controlled Ring Oscillator with Inductive Transmitter
Kiichi Niitsu; Atsuki Kobayashi; Yudai Ogawa; Matsuhiko Nishizawa; Kazuo Nakazato
2016 21ST ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC), 2016, Peer-reviewed

Live Demonstration: Noise-Immune Current-Integration-Based CMOS Amperometric Sensor Platform with 1.2 mu m x 2.05 mu m Electroless-Plated Microelectrode Array for Robust Bacteria Counting
Kohei Gamo; Kazuo Nakazato; Kiichi Niitsu
PROCEEDINGS OF 2016 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2016, Peer-reviewed

Live Demonstration: Current-Mode Analog-to-Time Converter for a Large Scale CMOS Biosensor Array
Kei Ikeda; Atsuki Kobayashi; Kazuo Nakazato; Kiichi Niitsu
PROCEEDINGS OF 2016 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2016, Peer-reviewed

An Energy-Autonomous Bio-Sensing System Using a Biofuel Cell and 0.19V 53 mu W 65nm-CMOS Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter
Atsuki Kobayashi; Kei Ikeda; Yudai Ogawa; Matsuhiko Nishizawa; Kazuo Nakazato; Kiichi Niitsu
PROCEEDINGS OF 2016 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2016, Peer-reviewed

A Low-Voltage CMOS Electrophoresis Chip with 32 × 32 Sample/Hold Cell Array
Yuuji Yamaji; Kiichi Niitsu; Kazuo Nakazato
in Proc. IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (TOWERS 2015), Nov. 2015

Low-noise CMOS amperometric sensor for high-sensitivity bacteria counting
Kohei Gamo; Kiichi Niitsu; Kazuo Nakazato
in Proc. IEEE Transdisciplinary-Oriented Workshop for Emerging Researchers (TOWERS 2015), Nov. 2015

Development of Microelectrode Arrays Using Electroless Plating for CMOS-Based Direct Counting of Bacterial and HeLa Cells
Kiichi Niitsu; Shoko Ota; Kohei Gamo; Hiroki Kondo; Masaru Hori; Kazuo Nakazato
IEEE TRANSACTIONS ON BIOMEDICAL CIRCUITS AND SYSTEMS, Oct. 2015

Non-optical Frequency-Shift Based Testing of Electrode Formation Using LC-VCO for High-Reliability CMOS Biosensor Array
Kiichi Niitsu; Kazuo Nakazato
in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015

A Low-Voltage High-Resolution CMOS Electrophoresis Platform with 32×32 Sample/Hold Cell Array
Yuuki Yamaji; Kiichi Niitsu; Kazuo Nakazato
in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015

A 1.8V-Input-Range Voltage-to-Current Converter Using Source Degeneration for Low-Noise Multimodal CMOS Biosensor Array
Keita Muto; Kiichi Niitsu; Kazuo Nakazato
in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015

A Low-Power CMOS Magnetic Cell Manipulation Platform Using Charge Recycling Technique
Kiichi Niitsu; Kohei Yoshida; Kazuo Nakazato
in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015

An Inverter-Based CMOS Level-Crossing ADC for Low-Power Biosensing
Suiki Tanaka; Kiichi Niitsu; Kazuo Nakazato
in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015

A CMOS Current Integrator with 1.2um × 2.05um Electroless-Plated 1024 × 1024 Microelectrode Array for High-Sensitivity Bacteria Detection
Kohei Gamo; Kiichi Niitsu; Kazuo Nakazato
n Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE8), Jun. 2015

A CMOS PWM Transceiver Using Self-Referenced Edge Detection
Kiichi Niitsu; Yusuke Osawa; Naohiro Harigai; Daiki Hirabayashi; Osamu Kobayashi; Takahiro J. Yamaguchi; Haruo Kobayashi
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, Jun. 2015

Phase noise measurement and testing with delta-sigma TDC
Osawa, Y.; Hirabayashi, D.; Harigai, N.; Kobayashi, H.; Kobayashi, O.; Tsuji, M.; Umeda, A.; Shiota, R.; Dobashi, N.; Watanabe, M.; Matsuura, T.; Niitsu, K.; Shimizu, I.; Takai, N.; Yamaguchi, T.J.
Key Engineering Materials, 2013

Analysis and experimental verification of DNA single-base polymerization detection using CMOS FET-based redox potential sensor array
Hiroki Ishihara; Kiichi Niitsu; Kazuo Nakazato
JAPANESE JOURNAL OF APPLIED PHYSICS, Apr. 2015

An Energy-Autonomous, Disposable, Big-Data-Based Supply-Sensing Biosensor Using Bio Fuel Cell and 0.23-V 0.25-mu m Zero-V-th All-Digital CMOS Supply-Controlled Ring Oscillator with Inductive Transmitter
Kiichi Niitsu; Atsuki Kobayashi; Yudai Ogawa; Matsuhiko Nishizawa; Kazuo Nakazato
2015 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2015, Peer-reviewed

Noise-Immune Current-Integration-Based CMOS Amperometric Sensor Platform with 1.2 mu m x 2.05 mu m Electroless-Plated Microelectrode Array for Robust Bacteria Counting
Kohei Gamo; Kiichi Niitsu; Kazuo Nakazato
2015 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2015, Peer-reviewed

Finite Aperture Time Effects in Sampling Circuit
Miho Arai; Isao Shimizu; Haruo Kobayashi; Keita Kurihara; Shu Sasaki; Shohei Shibuya; Kiichi Niitsu; Kazuyoshi Kubo
PROCEEDINGS OF 2015 IEEE 11TH INTERNATIONAL CONFERENCE ON ASIC (ASICON), 2015, Peer-reviewed

Phase Noise Measurement Technique Using Delta-Sigma TDC Without Reference Clock
Yusuke Osawa; Daiki Hirabayashi; Naohiro Harigai; Haruo Kobayashi; Osamu Kobayashi; Kiichi Niitsu
in Proc. 1st International Symposium of Gunma University Medical Innovation and 6th International Conference on Advanced Micro-Device Engineering, Dec. 2014

DNA Single Base Polymerization Detection Using CMOS FET-Based Redox Potential Sensor Array
Hiroki Ishihara; Kiichi Niitsu; Kazuo Nakazato
in Proc. International Conference on Solid State Devices and Materials (SSDM 2014), Sep. 2014

Amperometric electrochemical sensor array for on-chip simultaneous imaging
Tsuyoshi Kuno; Kiichi Niitsu; Kazuo Nakazato
Japanese Journal of Applied Physics, 01 Jan. 2014

Phase Noise Measurement Techniques Using Delta-Sigma TDC
Yusuke Osawa; Daiki Hirabayashi; Naohiro Harigai; Haruo Kobayashi; Kiichi Niitsu; Osamu Kobayashi
2014 19TH INTERNATIONAL MIXED-SIGNALS, SENSORS AND SYSTEMS TEST WORKSHOP (IMS3TW), 2014, Peer-reviewed

An Extended-Gate CMOS Sensor Array with Enzyme-Immobilized Microbeads for Redox-Potential Glucose Detection
Hayato Komori; Kiichi Niitsu; Junko Tanaka; Yu Ishige; Masao Kamahori; Kazuo Nakazato
2014 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2014, Peer-reviewed

Charge-Conserved Analog-to-Time Converter for a Large-Scale CMOS Biosensor Array
Masayuki Takihi; Kiichi Niitsu; Kazuo Nakazato
2014 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), 2014, Peer-reviewed

Live Demonstration: An Extended-Gate CMOS Sensor Array with Enzyme-Immobilized Microbeads for Redox-Potential Glucose Detection
Hayato Komori; Kiichi Niitsu; Junko Tanaka; Yu Ishige; Masao Kamahori; Kazuo Nakazato
2014 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2014, Peer-reviewed

A CMOS Sensor Platform with 1.2 mu m x 2.05 mu m Electroless-Plated 1024 x 1024 Microelectrode Array for High-Sensitivity Rapid Direct Bacteria Counting
Shoko Ota; Kiichi Niitsu; Hiroki Kondo; Masaru Hori; Kazuo Nakazato
2014 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2014, Peer-reviewed

Live Demonstration: A CMOS Sensor Platform with 1.2 mu m x 2.05 mu m Electroless-Plated 1024 x 1024 Microelectrode Array for High-Sensitivity Rapid Direct Bacteria Counting
Shoko Ota; Kiichi Niitsu; Hiroki Kondo; Masaru Hori; Kazuo Nakazato
2014 IEEE BIOMEDICAL CIRCUITS AND SYSTEMS CONFERENCE (BIOCAS), 2014, Peer-reviewed

A low-offset cascaded time amplifier with reconfigurable inter-stage connection
Kiichi Niitsu; Naohiro Harigai; Takahiro J. Yamaguchi; Haruo Kobayashi
IEICE ELECTRONICS EXPRESS, 2014

Design Methodology and Jitter Analysis of a Delay Line for High-Accuracy On-Chip Jitter Measurements
Kiichi Niitsu; Kazunori Sakuma; Naohiro Harigai; Daiki Hirabayashi; Nobukazu Takai; Takahiro J. Yamaguchi; Haruo Kobayashi
ADVANCED MICRO-DEVICE ENGINEERING IV, 2014, Peer-reviewed

Analysis on a Cascaded Structure in Open-Loop Time Amplifier for High-Speed Operation
Kiichi Niitsu; Naohiro Harigai; Daiki Hirabayashi; Masato Sakurai; Yusuke Osawa; Takahiro J. Yamaguchi; Haruo Kobayashi
ADVANCED MICRO-DEVICE ENGINEERING IV, 2014, Peer-reviewed

Self-Calibration Techniques of Pipeline ADCs Using Cyclic Configuration
Yohei Tan; Daiki Oki; Yu Liu; Yukiko Arai; Zachary Nosker; Haruo Kobayashi; Osamu Kobayashi; Tatsuji Matsuura; Zhixiang Yang; Atsuhiro Katayama; Li Quan; Ensi Li; Kiichi Niitsu; Nobukazu Takai
ADVANCED MICRO-DEVICE ENGINEERING IV, 2014, Peer-reviewed

Amperometric electrochemical sensor array for on-chip simultaneous imaging
Tsuyoshi Kuno; Kiichi Niitsu; Kazuo Nakazato
Japanese Journal of Applied Physics, 2014, Peer-reviewed

Phase Noise Measurement with Delta-Sigma TDC
Yusuke Osawa; Daiki Hirabayashi; Naohiro Harigai; Haruo Kobayashi; Osamu Kobayashi; Kiichi Niitsu; Takahiro J. Yamaguchi; Nobukazu Takai
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013

Study of Complex Multi-Bandpass DWA algorithm for I-Q Signal Generation
Masahiro Murakami; Shaiful Nizam Mohyar; Haruo Kobayashi; Tatsuji Matsuura; Osamu Kobayashi; Masanobu Tsuji; Sadayoshi Umeda; Ryoji Shiota; Noriaki Dobashi; Masafumi Watanabe; Isao Shimizu; Kiichi Niitsu; Nobukazu Takai; Takahiro J. Yamaguchi
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013

Noise-Shaping Cyclic ADC Architecture
Yukiko Arai; Yu Liu; Haruo Kobayashi; Tatsuji Matsuura; Osamu Kobayashi; Masanobu Tsuji; Masafumi Watanabe; Ryoji Shiota; Noriaki Dobashi; Sadayoshi Umeda; Isao Shimizu; Kiichi Niitsu; Nobukazu Takai; Takahiro J. Yamaguchi
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2013

Multi-bit sigma-delta TDC architecture with improved linearity
Satoshi Uemori; Masamichi Ishii; Haruo Kobayashi; Daiki Hirabayashi; Yuta Arakawa; Yuta Doi; Osamu Kobayashi; Tatsuji Matsuura; Kiichi Niitsu; Yuji Yano; Tatsuhiro Gake; Takahiro J. Yamaguchi; Nobukazu Takai
Journal of Electronic Testing: Theory and Applications (JETTA), Dec. 2013, Peer-reviewed

SFDR Improvement Algorithms for Current-Steering DACs
Shaiful Nizam Mohyar; Harnani Hassan; Masahiro Murakami; Atsushi Motozawa; Haruo Kobayashi; Osamu Kobayashi; Tatsuji Matsuura; Nobukazu Takai; Isao Shimizu; Kiichi Niitsu; Masanobu Tsuji; Masafumi Watanabe; Ryoji Shiota; Noriaki Dobashi; Sadayoshi Umeda; Takahiro J. Yamaguchi
in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013

Noise-Shaping Cyclic ADC Architecture
Yukiko Arai; Yu Liu; Haruo Kobayashi; Tatsuji Matsuura; Osamu Kobayashi; Masanobu Tsuji; Masafumi Watanabe; Ryoji Shiota; Noriaki Dobashi; Sadayoshi Umeda; Isao Shimizu; Kiichi Niitsu; Nobukazu Takai; Takahiro J. Yamaguchi
in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013

Phase Noise Measurement and Testing with Delta-Sigma TDC
Yusuke Osawa; Daiki Hirabayashi; Naohiro Harigai; Haruo Kobayashi; Osamu Kobayashi; Masanobu Tsuji; Sadayoshi Umeda; Ryoji Shiota; Noriaki Dobashi; Masafumi Watanabe; Tatsuji Matsuura; Kiichi Niitsu; Takahiro J. Yamaguchi; Nobukazu Takai; Isao Shimizu
in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013

A Single Supply Bootsrapped Boost Regulator for Energy Harvesting Applications
Zachary Nosker; Yasunori Kobori; Haruo Kobayashi; Kiichi Niitsu; Tetsuji Yamaguchi; Eiji Shikata; Tsuyoshi Kaneko; Nobukazu Takai; Kimio Ueda
in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013

Study of Complex Multi-Bandpass ΔΣ Modulator for I-Q Signal Generation
Masahiro Murakami; Shaiful Nizam Mohyar; Haruo Kobayashi; Tatsuji Matsuura; Osamu Kobayashi; Masanobu Tsuji; Sadayoshi Umeda; Ryoji Shiota; Noriaki Dobashi; Masafumi Watanabe; Isao Shimizu; Kiichi Niitsu; Nobukazu Takai; Takahiro J. Yamaguchi
in Proc. International Conference on Integrated Circuits, Design, and Verification (ICDV 2013), Nov. 2013

Phase Noise Measurement with Sigma-Delta TDC
Daiki Hirabayashi; Yusuke Osawa; Naohiro Harigai; Osamu Kobayashi; Kiichi Niitsu; Takahiro J. Yamaguchi; Nobukazu Takai
in Proc. IEEE International Test Conference (ITC 2013) (Poster Session), Sep. 2013

Design Methodology for Determining the Number of Stages in a Cascaded Time Amplifier to Minimize Area Consumption
K. Niitsu; N. Harigai; H. Kobayashi
IEICE Electronics Express, Jun. 2013, Peer-reviewed

A Feed-Forward Time Amplifier Using a Phase Detector and Variable Delay Lines
Kiichi Niitsu; Naohiro Harigai; Takahiro J. Yamaguchi; Haruo Kobayashi
IEICE TRANSACTIONS ON ELECTRONICS, Jun. 2013, Peer-reviewed

Two-Tone Signal Generation for ADC Testing
Keisuke Kato; Fumitaka Abe; Kazuyuki Wakabayashi; Chuan Gao; Takafumi Yamada; Haruo Kobayashi; Osamu Kobayashi; Kiichi Niitsu
IEICE TRANSACTIONS ON ELECTRONICS, Jun. 2013, Peer-reviewed

A small, low power boost regulator optimized for energy harvesting applications
Nosker, Z.; Kobori, Y.; Kobayashi, H.; Niitsu, K.; Takai, N.; Oomori, T.; Odaguchi, T.; Nakanishi, I.; Nemoto, K.; Matsuda, J.-I.
Analog Integrated Circuits and Signal Processing, Apr. 2013, Peer-reviewed

Design of a Clock Jitter Reduction Circuit Using Gated Phase Blending Between Self-Delayed Clock Edges
Kiichi Niitsu; Naohiro Harigai; Daiki Hirabayashi; Daiki Oki; Masato Sakurai; Osamu Kobayashi; Takahiro J. Yamaguchi; Haruo Kobayashi
2013 18TH ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC), 2013, Peer-reviewed

An Analytical Study on Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurements
Kiichi Niitsu; Masato Sakurai; Naohiro Harigai; Daiki Hirabayashi; Daiki Oki; Takahiro J. Yamaguchi; Haruo Kobayashi
ADVANCED MICRO-DEVICE ENGINEERING III, 2013, Peer-reviewed

A high efficiency, extended load range boost regulator optimized for energy harvesting applications
Zachary Nosker; Yasunori Kobori; Haruo Kobayashi; Kiichi Niitsu; Nobukazu Takai; Takeshi Oomori; Takahiro Odaguchi; Isao Nakanishi; Kenji Nemoto; Jun-Ichi Matsuda
Key Engineering Materials, 2013, Peer-reviewed

Digital auto-tuning for center frequency and Q-factor of Gm-C band-pass filter
Guanglei Jin; Hao Chen; Chuan Gao; Yunpeng Zhang; Murong Li Haruo Kobayashi; Shu Wu; Nobukazu Takai; Kiichi Niitsu; Khayrollah Hadidi
Key Engineering Materials, 2013, Peer-reviewed

A Study on Design for High-Speed Operation in a Cascaded Open-Loop Time Amplifier
Naohiro Harigai; Kiichi Niitsu; Daiki Hirabayashi; Masato Sakurai; Yusuke Osawa; Takahiro J. Yamaguchi; Haruo Kobayashi
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012

Self-Calibration Technique of Cyclic ADC
Yu Liu; Haruo Kobayashi; Tatsuji Matsuura; Oamu Kobayashi; Nobukazu Takai; Kiichi Niitsu
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012

Analysis of Jitter in Delay Line for High-Accuracy On-chip Jitter Measurements
Kazunori Sakuma; Kiichi Niitsu; Naohiro Harigai; Daiki Hirabayashi; Nobukazu Takai; Takahiro J. Yamaguchi; Haruo Kobayashi
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012

Self-Calibration Technique of Pipeline ADC Using Cyclic Configuration
Yohei Tan; Daiki Oki; Yu Liu; Zachary Nosker; Haruo Kobayashi; Osamu Kobayashi; Tatsuji Matsuura; Atsuhiro Katayama; Li Quan; Ensi Li; Kiichi Niitsu; Nobukazu Takai
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012

A Fully Integrated Low Input Voltage Self Starting Charge Pump Circuit for Boost Regulator Bootstrap Startup
Zachary Nosker; Yasunori Kobori; Haruo Kobayashi; Kiichi Niitsu; Nobukazu Takai; Takahiro Odaguchi; Isao Nakanishi; Kenji Nemoto; Jun-ichi Matsuda
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2012

CMOS Circuits to Measure Timing Jitter Using a Self-Referenced Clock and a Cascaded Time Difference Amplifier With Duty-Cycle Compensation
Kiichi Niitsu; Masato Sakurai; Naohiro Harigai; Takahiro J. Yamaguchi; Haruo Kobayashi
IEEE JOURNAL OF SOLID-STATE CIRCUITS, Nov. 2012, Peer-reviewed

Non-Isolated Direct AC-DC Converter Design with BCM-PFC Circuit
Yasunori Kobori; Lin Xing; Hong Gao; Masanori Onozawa; Shu Wu; Shaiful Nizam Mohyar; Zachary Nosker; Haruo Kobayashi; Nobukazu Takai; Kiichi Niitsu
in Proc. International Conference on Power Eingineering, Oct. 2012

Low-Distortion Sinewave Generation Method Using Arbitrary Waveform Generator
Kazuyuki Wakabayashi; Keisuke Kato; Takafumi Yamada; Osamu Kobayashi; Haruo Kobayashi; Fumitaka Abe; Kiichi Niitsu
JOURNAL OF ELECTRONIC TESTING-THEORY AND APPLICATIONS, Oct. 2012, Peer-reviewed

A 65fJ/b Inter-Chip Inductive-Coupling Data Transceivers Using Charge-Recycling Technique for Low-Power Inter-Chip Communication in 3-D System Integration
Kiichi Niitsu; Shusuke Kawai; Noriyuki Miura; Hiroki Ishikuro; Tadahiro Kuroda
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, Jul. 2012, Peer-reviewed

Post-silicon jitter measurements
Kiichi Niitsu; Takahiro J. Yamaguchi; Masahiro Ishida; Haruo Kobayashi
Proceedings of the Asian Test Symposium, 2012, Peer-reviewed

A new procedure for measuring high-accuracy probability density functions
Takahiro J. Yamaguchi; Kunihiro Asada; Kiichi Niitsu; Mohamed Abbas; Satoshi Komatsu; Haruo Kobayashi; Jose A. Moreira
Proceedings of the Asian Test Symposium, 2012, Peer-reviewed

Two-tone signal generation for communication application ADC testing
Keisuke Kato; Fumitaka Abe; Kazuyuki Wakabayashi; Chuan Gao; Takafumi Yamada; Haruo Kobayashi; Osamu Kobayashi; Kiichi Niitsu
Proceedings of the Asian Test Symposium, 2012, Peer-reviewed

Low-IMD two-tone signal generation for ADC testing
Keisuke Kato; Fumitaka Abe; Kazuyuki Wakabayashi; Takafumi Yamada; Haruo Kobayashi; Osamu Kobayashi; Kiichi Niitsu
Proceedings of the 2012 IEEE 18th International Mixed-Signal, Sensors, and Systems Test Workshop, IMS3TW 2012, 2012, Peer-reviewed

Multi-bit sigma-delta TDC architecture for digital signal timing measurement
Satoshi Uemori; Masamichi Ishii; Haruo Kobayashi; Yuta Doi; Osamu Kobayashi; Tatsuji Matsuura; Kiichi Niitsu; Fumitaka Abe; Daiki Hirabayashi
Proceedings of the 2012 IEEE 18th International Mixed-Signal, Sensors, and Systems Test Workshop, IMS3TW 2012, 2012, Peer-reviewed

A clock jitter reduction circuit using gated phase blending between self-delayed clock edges
Kiichi Niitsu; Naohiro Harigai; Daiki Hirabayashi; Daiki Oki; Masato Sakurai; Osamu Kobayashi; Takahiro J. Yamaguchi; Haruo Kobayashi
IEEE Symposium on VLSI Circuits, Digest of Technical Papers, 2012, Peer-reviewed

DC-DC Converter with Continuous-Time Feed-Forward Sigma-Delta Modulator Control
Hong Gao; Lin Xing; Yasunori Kobori; Feng Zhao; Haruo Kobayashi; Shyunsuke Miwa; Atsushi Motozawa; Zachary Nosker; Kiichi Niitsu; Nobukazu Takai; Takahiro Odaguchi; Isao Nakanishi; Kenji Nemoto; Jun-ichi Matsuda
2012 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS), 2012, Peer-reviewed

Digitally-Controlled Gm-C Bandpass Filter
Guanglei Jin; Hao Chen; Chuan Gao; Yunpeng Zhang; Haruo Kobayashi; Nobukazu Takai; Kiichi Niitsu; Khayrollah Hadidi
2012 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS), 2012, Peer-reviewed

A Reference-Free On-Chip Timing Jitter Measurement Circuit Using Self-Referenced Clock and a Cascaded Time Difference Amplifier in 65nm CMOS
Kiichi Niitsu; Masato Sakurai; Naohiro Harigai; Daiki Hirabayashi; Takahiro J. Yamaguchi; Haruo Kobayashi
2012 17TH ASIA AND SOUTH PACIFIC DESIGN AUTOMATION CONFERENCE (ASP-DAC), 2012, Peer-reviewed

Multi-bit Sigma-Delta TDC Architecture with Self-Calibration
Satoshi Uemori; Masamichi Ishii; Haruo Kobayashi; Yuta Doi; Osamu Kobayashi; Tatsuji Matsuura; Kiichi Niitsu; Yuta Arakawa; Daiki Hirabayashi; Yuji Yano; Tatsuhiro Gake; Nobukazu Takai; Takahiro J. Yamaguchi
2012 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS), 2012, Peer-reviewed

Single Inductor Dual Output DC-DC Converter Design with Exclusive Control
Yasunori Kobori; Qiulin Zhu; Murong Li; Feng Zhao; Zachary Nosker; Shu Wu; Shaiful N. Mohyar; Masanori Onozawa; Haruo Kobayashi; Nobukazu Takai; Kiichi Niitsu; Takahiro Odaguchi; Isao Nakanishi; Kenji Nemoto; Jun-ichi Matsuda; Asahi Kasei
2012 IEEE ASIA PACIFIC CONFERENCE ON CIRCUITS AND SYSTEMS (APCCAS), 2012, Peer-reviewed

Architecture of High-Efficiency Digitally-Controlled Class-E Power Amplifier
Jiani Ye; Zachary Nosker; Kazuyuki Wakabayashi; Takuya Yagi; Osamu Yamamoto; Nobukazu Takai; Kiichi Niitsu; Keisuke Kato; Takao Ootsuki; Isao Akiyama; Haruo Kobayashi
SILICON SCIENCE AND ADVANCED MICRO-DEVICE ENGINEERING II, 2012, Peer-reviewed

A High Efficiency, Extended Load Range Boost Regulator Optimized for Energy Harvesting Applications
Zachary Nosker; Yasunori Kobori; Haruo Kobayashi; Kiichi Niitsu; Nobukazu Takai; Takeshi Oomori; Takahiro Odaguchi; Isao Nakanishi; Kenji Nemoto; Jun-ichi Matsuda
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2011

A Study on Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurement Circuits
Masato Sakurai; Kiichi Niitsu; Naohiro Harigai; Daiki Hirabayashi; Daiki Oki; Takahiro J. Yamaguchi; Haruo Kobayashi
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2011

Novel AC-DC Direct Converter Design with PFC
Yasunori Kobori; Lin Xing; Gao Hong; Naohisa Okamoto; Masaki Ohshima; Haruo Kobayashi; Nobukazu Takai; Kiichi Niitsu
in Proc. International Conference on Power Electronics and Power Engineering (ICPEPE 2011), Dec. 2011

Architecture of High-Efficiency Digitally-Controlled Class-E Power Amplifier
Jiani Ye; Zachary Nosker; Kazuyuki Wakabayashi; Takuya Yagi; Nobukazu Takai; Kiichi Niitsu; Keisuke Kato; Takao Ootsuki; Haruo Kobayashi; Osamu Yamamoto; Isao Akiyama
in Proc. IEEJ International Analog VLSI Workshop (AVW 2011), Nov. 2011

Analysis of Jitter Accumulation in Interleaved Phase Frequency Detectors for High-Accuracy On-Chip Jitter Measurements
Masato Sakurai; Kiichi Niitsu; Naohiro Harigai; Daiki Hirabayashi; Daiki Oki; Takahiro J. Yamaguchi; Haruo Kobayashi
in Proc. International SoC Design Conference (ISOCC 2011), Nov. 2011

A Small, Low Power Boost Regulator Optimized for Energy Harvesting Applications
Zachary Nosker; Yasunori Kobori; Haruo Kobayashi; Kiichi Niitsu; Nobukazu Takai; Takeshi Oomori; Takahiro Odaguchi; Isao Nakanishi; Kenji Nemoto; Jun-ichi Matsuda
in Proc. IEEJ International Analog VLSI Workshop (AVW 2011), Nov. 2011

A 14-GHz AC-Coupled Clock Distribution Scheme With Phase Averaging Technique Using Single LC-VCO and Distributed Phase Interpolators
Kiichi Niitsu; Vishal V. Kulkarni; Shinmo Kang; Hiroki Ishikuro; Tadahiro Kuroda
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, Nov. 2011, Peer-reviewed

Analysis and Techniques for Mitigating Interference From Power/Signal Lines and to SRAM Circuits in CMOS Inductive-Coupling Link for Low-Power 3-D System Integration
Kiichi Niitsu; Yasufumi Sugimori; Yoshinori Kohama; Kenichi Osada; Naohiko Irie; Hiroki Ishikuro; Tadahiro Kuroda
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, Oct. 2011, Peer-reviewed

A Twistedly-Cascaded Time Difference Amplifier for High Robustness Against Process Variation
Naohiro Harigai; Kiichi Niitsu; Daiki Oki; Masato Sakurai; Takahiro J. Yamaguchi; Haruo Kobayashi
in Proc. International Conference on Solid State Devices and Materials (SSDM 2011), Sep. 2011

Low-Distortion Single-Tone and Two-Tone Sinewave Generation Algorithms Using ΣΔ DAC
Takafumi Yamada; Osamu Kobayashi; Keisuke Kato; Kazuyuki Wakabayashi; Haruo Kobayashi; Tatsuji Matsuura; Yuji Yano; Tatsuhiro Gake; Kiichi Niitsu; Nobukazu Takai; Takahiro J. Yamaguchi
in Proc. IEEE International Test Conference (ITC 2011) (Poster Session), Sep. 2011

Design for Testability That Reduces Linearity Testing Time of SAR ADCs
Tomohiko Ogawa; Haruo Kobayashi; Satoshi Uemori; Yohei Tan; Satoshi Ito; Nobukazu Takai; Takahiro J. Yamaguchi; Kiichi Niitsu
IEICE TRANSACTIONS ON ELECTRONICS, Jun. 2011, Peer-reviewed

Low-distortion single-tone and two-tone sinewave generation algorithms using an arbitrary waveform generator
Kazuyuki Wakabayashi; Takafumi Yamada; Satoshi Uemori; Osamu Kobayashi; Keisuke Kato; Haruo Kobayashi; Kiichi Niitsu; Hiroyuki Miyashita; Shinya Kishigami; Kunihito Rikino; Yuji Yano; Tatsuhiro Gake
Proceedings - 2011 IEEE 17th International Mixed-Signals, Sensors and Systems Test Workshop, IMS3TW 2011, 2011, Peer-reviewed

An on-chip timing jitter measurement circuit using a self-referenced clock and a cascaded time difference amplifier with duty-cycle compensation
Kiichi Niitsu; Masato Sakurai; Naohiro Harigai; Takahiro J. Yamaguchi; Haruo Kobayashi
2011 Proceedings of Technical Papers: IEEE Asian Solid-State Circuits Conference 2011, A-SSCC 2011, 2011, Peer-reviewed

Reconfigurable SAR ADC for Yield Optimization
Tomohiko Ogawa; Haruo Kobayashi; Youhei Tan; Satoshi Ito; Satoshi Uemori; Nobukazu Takai; Kiichi Niitsu
in Proc. International Conference on Advanced Micro-Device Engineering, Dec. 2010

Modeling and Experimental Verification of Misalignment Tolerance in Inductive-Coupling Inter-Chip Link for Low-Power 3-D System Integration
Kiichi Niitsu; Yoshinori Kohama; Yasufumi Sugimori; Kazutaka Kasuga; Kenichi Osada; Naohiko Irie; Hiroki Ishikuro; Tadahiro Kuroda
IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS, Aug. 2010, Peer-reviewed

3-D System Integration of Processor and Multi-Stacked SRAMs Using Inductive-Coupling Link
Makoto Saen; Kenichi Osada; Yasuyuki Okuma; Kiichi Niitsu; Yasuhisa Shimazaki; Yasufumi Sugimori; Yoshinori Kohama; Kazutaka Kasuga; Itaru Nonomura; Naohiko Irie; Toshihiro Hattori; Atsushi Hasegawa; Tadahiro Kuroda
IEEE JOURNAL OF SOLID-STATE CIRCUITS, Apr. 2010, Peer-reviewed

A 0.45V-to-2.7V inductive-coupling level shifter
Keita Takatsu; Kiichi Niitsu; Tsunaaki Shidei; Noriyuki Miura; Tadahiro Kuroda
2010 IEEE Asian Solid-State Circuits Conference, A-SSCC 2010, 2010, Peer-reviewed

ADC Linearity Test Signal Generation Algorithm
Satoshi Uemori; Takahiro J. Yamaguchi; Satoshi Ito; Yohei Tan; Haruo Kobayashi; Nobukazu Takai; Kiichi Niitsu; Nobuyoshi Ishikawa
PROCEEDINGS OF THE 2010 IEEE ASIA PACIFIC CONFERENCE ON CIRCUIT AND SYSTEM (APCCAS), Dec. 2010, Peer-reviewed

SAR ADC That is Configurable to Optimize Yield
Tomohiko Ogawa; Haruo Kobayashi; Yohei Tan; Satoshi Ito; Satoshi Uemori; Nobukazu Takai; Kiichi Niitsu; Takahiro J. Yamaguchi; Tatsuji Matsuura; Nobuyoshi Ishikawa
PROCEEDINGS OF THE 2010 IEEE ASIA PACIFIC CONFERENCE ON CIRCUIT AND SYSTEM (APCCAS), Dec. 2010, Peer-reviewed

Stochastic TDC Architecture with Self-Calibration
Satoshi Ito; Shigeyuki Nishimura; Haruo Kobayashi; Satoshi Uemori; Yohei Tan; Nobukazu Takai; Takahiro J. Yamaguchi; Kiichi Niitsu
PROCEEDINGS OF THE 2010 IEEE ASIA PACIFIC CONFERENCE ON CIRCUIT AND SYSTEM (APCCAS), Dec. 2010, Peer-reviewed

MuCCRA-Cube: a 3D Dynamically Reconfigurable Processor with Inductive-Coupling Link
Shotaro Saito; Yoshinori Kohama; Yasufumi Sugimori; Yohei Hasegawa; Hiroki Matsutani; Toru Sano; Kazutaka Kasuga; Yoichi Yoshida; Kiichi Niitsu; Noriyuki Miura; Tadahiro Kuroda; Hideharu Amano
n Proc. IEEE International Conference on Field Programmable Logic and Applications (FPL 2009), Sep. 2009

A 14GHz AC-Coupled Clock Distribution Using Single LC-VCO and Distributed Phase Interpolators
Kiichi Niitsu; Vishal V. Kurkarni; Kang Shinmo; Hiroki Ishikuro; Tadahiro Kuroda
in Proc. International Conference on Solid State Devices and Materials (SSDM 2009), Sep. 2009

High Efficiency Inductive-Coupling Power Delivery With Sandwiching Thin Films of Magnetic Material
Kiichi Niitsu; Yuan Yuxiang; Hiroki Ishikuro; Tadahiro Kuroda
in Proc. IEEE International Magnetics Conference (INTERMAG 2009), May 2009

A 33% Improvement in Efficiency of Wireless Inter-Chip Power Delivery by Thin Film Magnetic Material for Three-Dimensional System Integration
Kiichi Niitsu; Yuan Yuxiang; Hiroki Ishikuro; Tadahiro Kuroda
JAPANESE JOURNAL OF APPLIED PHYSICS, Apr. 2009, Peer-reviewed

A 750 Mb/s, 12 pJ/b, 6-to-10 GHz CMOS IR-UWB Transmitter With Embedded On-Chip Antenna
Vishal V. Kulkarni; Muhammad Muqsith; Kiichi Niitsu; Hiroki Ishikuro; Tadahiro Kuroda
IEEE JOURNAL OF SOLID-STATE CIRCUITS, Feb. 2009, Peer-reviewed

An inductive-coupling link for 3D integration of a 90nm CMOS processor and a 65nm CMOS SRAM
Kiichi Niitsu; Yasuhisa Shimazaki; Yasufumi Sugimori; Yoshinori Kohama; Kazutaka Kasuga; Itaru Nonomura; Makoto Saen; Shigenobu Komatsu; Kenichi Osada; Naohiko Irie; Toshihiro Hattori; Atsushi Hasegawa; Tadahiro Kuroda
Digest of Technical Papers - IEEE International Solid-State Circuits Conference, 2009, Peer-reviewed

3D System Integration of Processor and Multi-Stacked SRAMs by Using Inductive-Coupling Links
Kenichi Osada; Makoto Saen; Yasuyuki Okuma; Kiichi Niitsu; Yasuhisa Shimazaki; Yasufumi Sugimori; Yoshinori Kohama; Kazutaka Kasuga; Itaru Nonomura; Naohiko Irie; Toshihiro Hattori; Atsushi Hasegawa; Tadahiro Kuroda
2009 SYMPOSIUM ON VLSI CIRCUITS, DIGEST OF TECHNICAL PAPERS, 2009, Peer-reviewed

A Scalable 3D Processor by Homogeneous Chip Stacking with Inductive-Coupling Link
Yoshinori Kohama; Yasufumi Sugimori; Shotaro Saito; Yohei Hasegawa; Toru Sano; Kazutaka Kasuga; Yoichi Yoshida; Kiichi Niitsu; Noriyuki Miura; Hideharu Amano; Tadahiro Kuroda
2009 SYMPOSIUM ON VLSI CIRCUITS, DIGEST OF TECHNICAL PAPERS, 2009, Peer-reviewed

A 33% Improvement in Efficiency of Wireless Inter-Chip Power Delivery Using Thin Film Magnetic Material
Kiichi Niitsu; Yuan Yuxiang; Hiroki Ishikuro; Tadahiro Kuroda
in Proc. International Conference on Solid State Devices and Materials (SSDM 2008), Sep. 2008

Misalignment Tolerance in Inductive-Coupling Inter-Chip Link for 3D System Integration
Kiichi Niitsu; Yoshinori Kohama; Yasufumi Sugimori; Kenichi Osada; Naohiko Irie; Hiroki Ishikuro; Tadahiro Kuroda
in Proc. International Conference on Solid State Devices and Materials (SSDM 2008), Sep. 2008

A 65 fJ/b Inductive-Coupling Inter-Chip Transceiver Using Charge Recycling Technique for Power-Aware 3D System Integration
Kiichi Niitsu; Shusuke Kawaj; Noriyuki Miura; Hiroki Ishikuro; Tadahiro Kuroda
2008 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE, 2008, Peer-reviewed

A 0.14 pJ/b inductive-coupling transceiver with digitally-controlled precise pulse shaping
Noriyuki Miura; Hirok Ishikuro; Kiichi Niitsu; Takayasu Sakurai; Tadahiro Kuroda
IEEE JOURNAL OF SOLID-STATE CIRCUITS, Jan. 2008, Peer-reviewed

Daisy chain transmitter for power reduction in inductive-coupling CMOS link
Kiichi Niitsu; Noriyuki Miura; Mari Inoue; Yoshihiro Nakagawa; Masamoto Tago; Masayuki Mizuno; Takayasu Sakurai; Tadahiro Kuroda
IEICE TRANSACTIONS ON ELECTRONICS, Apr. 2007, Peer-reviewed

60% Power reduction in inductive-coupling inter-chip link by current-sensing technique
Kiichi Niitsu; Noriyuki Miura; Mari Inoue; Yoshihiro Nakagawa; Masamoto Tago; Masayuki Mizuno; Hiroki Ishikuro; Tadahiro Kuroda
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, Apr. 2007, Peer-reviewed

Interference from power/signal lines and to SRAM circuits in 65nm CMOS inductive-coupling link
Kiichi Niitsu; Yasufumi Sugimori; Yoshinori Kohama; Kenichi Osada; Naohiko Irie; Hiroki Ishikuro; Tadahiro Kuroda
2007 IEEE Asian Solid-State Circuits Conference, A-SSCC, 2007, Peer-reviewed

A 1 Tb/s 3 W inductive-coupling transceiver for 3D-stacked inter-chip clock and data link
Noriyuki Miura; Daisuke Mizoguchi; Mari Inoue; Kiichi Niitsu; Yoshihiro Nakagawa; Masamoto Tago; Muneo Fukaishi; Takayasu Sakurai; Tadahiro Kuroda
IEEE JOURNAL OF SOLID-STATE CIRCUITS, Jan. 2007, Peer-reviewed

60% Power Reduction in Inductive-Coupling Inter-Chip Link by Current-Sensing Technique
Kiichi Niitsu; Noriyuki Miura; Mari Inoue; Yoshihiro Nakagawa; Masamoto Tago; Muneo Fukaishi; Hiroki Ishikuro; Tadahiro Kuroda
in Proc. International Conference on Solid State Devices and Materials (SSDM 2006), Sep. 2006

Daisy Chain for Power Reduction in Inductive-Coupling CMOS Link
Mari Inoue; Noriyuki Miura; Kiichi Niitsu; Yoshihiro Nakagawa; Masamoto Tago; Muneo Fukaishi; Takayasu Sakurai; Tadahiro Kuroda
in Proc. IEEE Symposium on VLSI Circuits (VLSIC 2006), Jun. 2006

A 1Tb/s 3W Inductive-Coupling Transceiver for Inter-Chip Clock and Data Link
Noriyuki Miura; Daisuke Mizoguchi; Mari Inoue; Kiichi Niitsu; Yoshihiro Nakagawa; Masamoto Tago; Muneo Fukaishi; Takayasu Sakurai; Tadahiro Kuroda
in Proc. IEEE International Solid-State Circuits Conference (ISSCC 2006), Feb. 2006

Misc.

Single Inductor Dual Output DC-DC Switching Converter with Quasi ΔΣ Modulation
小堀康功; 李慕容; 呉〓; 趙峰; モハイヤニザム; 小田口貴宏; 中西功; 根本謙治; 松田順一; 高井伸和; 新津葵一; 小林春夫
電気学会研究会資料. ECT, 電子回路研究会, 21 Dec. 2012

Noise-Shaping Technique with Arbitrary Waveform Generator
MURAKAMI Masahiro; ARAI Yukiko; SHAIFUL Mohyar Nizam; ABE Fumitaka; KATO Keisuke; KOBAYASHI Haruo; MATSUURA Tatsuji; KOBAYASHI Osamu; NIITSU Kiichi; TAKAI Nobukazu
電気学会研究会資料. ECT, 電子回路研究会, 04 Oct. 2012

Built-Out Self-Test Circuit for Digital Signal Timing
HIRABAYASHI Daiki; ARAKAWA Yuta; KAWAUCHI Satoru; ISHII Masamichi; UEMORI Satoshi; SATO Koshi; KOBAYASHI Haruo; NIITSU Kiichi; TAKAI Nobukazu
電気学会研究会資料. ECT, 電子回路研究会, 04 Oct. 2012

Analog Filter for Low-Distortion Sinewave Generation Using Arbitrary Waveform Generator
ABE Fumitaka; KATO Keisuke; KOBAYASHI Haruo; KOBAYASHI Osamu; TAKAI Nobukazu; NIITSU Kiichi
電気学会研究会資料. ECT, 電子回路研究会, 04 Oct. 2012

Digital Auto-Tuning Method of Continuous-Time Analog Filter
JIN Guanglei; CHEN Hao; GAO Chuan; ZHANG Yunpeng; KOBAYASHI Haruo; TAKAI Nobukazu; NIITSU Kiichi
電気学会研究会資料. ECT, 電子回路研究会, 29 Mar. 2012

Control System of Single Inductor Dual Output DC-DC Converter
小堀康功; 小野澤昌徳; 朱秋霖; 高井伸和; 新津葵一; 小林春夫; 大森武志; 小田口貴宏; 中西功; 根本謙治; 松田順一
電気学会研究会資料. ECT, 電子回路研究会, 29 Mar. 2012

Digital-to-Analog Converter Architecture for Low Distortion Signal Generation
GAO Chuan; WAKABAYASHI Kazuyuki; KATO Keisuke; ABE Fumitaka; KOBAYASHI Haruo; KOBAYASHI Osamu; MATSUURA Tatsuji; NIITSU Kiichi; TAKAI Nobukazu
電気学会研究会資料. ECT, 電子回路研究会, 29 Mar. 2012

Direct AC-DC Converter with Small Number of Components
〓林; 高虹; 小堀康功; 村上和貴; 小野澤昌徳; 小林春夫; 高井伸和; 新津葵一
電気学会研究会資料. ECT, 電子回路研究会, 19 Jan. 2012

A Reference-Clock-Free On-Chip Timing Jitter Measurement Circuit Using a Self-Referenced Clock and a Cascaded Time Difference Amplifier with Duty-Cycle Compensation
HIRABAYASHI Daiki; NIITSU Kiichi; HARIGAI Naohiro; SAKURAI Masato; YAMAGUCHI Takahiro J.; KOBAYASHI Haruo
電気学会研究会資料. ECT, 電子回路研究会, 19 Jan. 2012

Distortion Compensation Algorithm and Measurement Verification of Signal Generation Using an Arbitrary Waveform Generator
WAKABAYASHI Kazuyuki; YAMADA Takafumi; KATO Keisuke; UEMORI Satoshi; KOBAYASHI Osamu; KOBAYASHI Haruo; NIITSU Kiichi; YAMAGUCHI Takahiro J.
電気学会研究会資料. ECT, 電子回路研究会, 24 Mar. 2011

ACT-1-3 デジタルアシスト・アナログRFテスト技術 : サブ100nmミックストシグナルSoCテストの考察(ACT-1.サブ100nm時代のCMOSアナログ技術-,チュートリアルセッション,ソサイエティ企画)
小林春夫; 新津葵一; 高井伸和; 山口隆弘
電子情報通信学会総合大会講演論文集, 28 Feb. 2011

ACS-1-2 Distortion and Noise Reduction Technique in High-order Delta-Sigma DACs
Yamada Takafumi; Wakabayashi Kazuyuki; Uemori Satoshi; Kato Keisuke; Kobayashi Osamu; Niitsu Kiichi; Miyashita Hiroyuki; Kobayashi Haruo
Proceedings of the IEICE General Conference, 28 Feb. 2011

デジタルアシスト・アナログRFテスト技術-サブ100nmミックストシグナルSoCのテストの検討-
小林春夫; 新津葵一; 高井伸和; 山口隆弘
電子情報通信学会総合大会 (2011年3月), 2011

低消費電力3次元システム集積に向けた65fJ/b誘導結合トランシーバ
新津葵一; 三浦典之; 川井秀介; 石黒仁揮; 黒田忠広
電子情報通信学会技術研究報告. ICD, 集積回路, 04 Dec. 2008

Proximity Inter-Chip Communication
KURODA Tadahiro; NIITSU Kiichi
電子情報通信学会技術研究報告. ICD, 集積回路, 11 Jan. 2007

Presentations

Application extension of SRAM latch circuits from a view point of butterfly curve
篠原尋史; 劉昆洋; 張瑞琳; 徐舒帆; 新津葵一
電子情報通信学会研究会発表, 11 Apr. 2025, Invited

半導体技術と共進化しながら電力・速度間スケーラビリティを可能にする電源・信号電圧一体駆動型ニューロモルフィック集積回路
新津葵一
一般社団法人電気学会全国大会, 20 Mar. 2025, Invited

半導体製造プロセスと共進化する微細適応IoT集積回路とそのバイオ・医療応用展開
新津葵一
一般社団法人電子情報技術産業協会 Society5.0/SDGsを加速するセンシング技術分科会, 26 Nov. 2024, Invited

先端半導体活用低電力IoTに向けた電源電圧デジタル変換集積回路設計技術
新津葵一
『モータやパワーエレクトロニクスを支える回路技術』第22回大学発シーズマッチングセミナー, 22 Nov. 2024, Invited

半導体共進化微細IoTに向けた微細化適応半導体集積回路設計ー発電センシング一体型集積センサに向けた0.1V 0.9pW 22nm CMOS電源環境適応型電源電圧デジタル変換回路ー
新津葵一
日本学術振興会 R025先進薄膜界面機能創成委員会第20回研究会, 22 Aug. 2024, Invited

半導体共進化微細IoTに向けた集積回路設計技術～発電・センシング一体型バイオ集積IoTに向けた常時オン発振器と異なるしきい値電源電圧を有する信号バッファ群を用いた 0.9-2.6pW 0.1-0.25V 2ビット 22nm CMOS電源電圧・デジタル変換回路～
新津葵一
電子情報通信学会研究会, 05 Aug. 2024, Invited

バイオメディカル IoT を支える電力自立センシング半導体集積回路システム
新津葵一
電気三学会関西支部専門講習会, 25 Jun. 2024

Bio-fuel-cell-powered-and-sensed Biomedical IoTs
Kiichi Niitsu
2024 IEEE the 13th International Conference on Communications, Circuits, and Systems (ICCCAS), May 2024, Invited

データ科学と半導体集積回路の進化が切り拓く糖尿病医療に向けたIoT〜低血糖予知機能搭載コンタクト型・耳装着型持続血糖モニタリングの研究開発〜
新津葵一
第8回日本糖尿病・生活習慣病ヒューマンデータ学会年次学術集会, 01 Dec. 2023, Invited

Integrating Iots into Our Life : Energy-Efficient COMS-Enabled Biomedical Iot Systems Improving Our Health
Kiichi Niitsu
The 13th International Conference on the Internet of Things, 09 Nov. 2023, Invited

半導体集積回路と生命医科学における進化の協奏が織り成す生体内サイバネテック・アバター
新津葵一
第41回日本ロボット学会学術講演会, 11 Sep. 2023

最先端半導体集積回路設計技術と分析化学の融合による未来のヘルスケアIoT ～単独自立動作可能な持続血糖モニタリングコンタクトレンズの開発
新津葵一
日本分析化学会第83回分析化学討論会, 20 May 2023

半導体集積回路の進化が切り拓くバイオ・医療応用IoTの研究開発と将来展望～涙液糖発電センシングによる単独自立動作持続血糖モニタリングコンタクトの開発～
新津葵一
本顎口腔機能学会第69回学術大会, 22 Apr. 2023, Invited

半導体集積回路の微細化が切り拓くTinyCMOS技術とその応用展開～涙液糖発電センシングで自立動作可能な持続血糖モニタリングコンタクトレンズ
新津葵一
電子情報通信学会短距離無線通信研究会(SRW), 16 Jan. 2023, Invited

Energy/Data-Autonomous AIoT CMOS Integrated Platform Using Localized Energy/Data Generation and Consumption(to be presented)
Kiichi Niitsu
2022 IEEE 16th International Conference on Solid-State and Integrated Circuit Technology, 25 Oct. 2022

半導体集積回路の微細化が切り拓くスケーラブル・バイオイメージングの現状と展望
新津葵一
第31回日本バイオイメージング学会学術集会, 04 Sep. 2022, Invited

高エネルギー効率特定用途半導体集積回路とバイオ発電素子を用いた単独自立型持続血糖モニタリングコンタクトレンズ
新津葵一
日本学術振興会 R025先進薄膜界面機能創成委員会第8回研究会, 13 Apr. 2022

最先端半導体集積回路エレクトロニクスが切り拓く非侵襲血糖モニタリング技術～涙液糖発電を用いた単独動作持続血糖モニタリングコンタクトレンズ・ミリ波帯を用いた耳装着クリップ型モニタの開発～
新津葵一
第9回 Digital Medical Innovation Lab.主催医療DX講演会, 25 Feb. 2022

サブ平方mm／サブnW半導体集積回路及び糖発電素子を用いた環境適応自立駆動型持続血糖モニタIoTスマートコンタクトレンズ
新津葵一
第８５回半導体・集積回路技術シンポジウム, 31 Aug. 2021, Invited

小児糖尿病医療に資する次世代のAI×IoT技術～単独動作可能AI機能付き持続血糖モニタリングコンタクトレンズの研究開発～
新津葵一
埼玉県小児糖尿懇話会, 24 Feb. 2021, Invited

低侵襲がん医療に資するリキッドバイオプシーに向けたCTC・エクソソーム検出ミリ波帯CMOSバイオセンサ集積回路
新津葵一
高速・高周波集積回路の新分野展開と高度化技術調査専門委員会, 22 Jan. 2021, Invited

Society 5.0 に資するエネルギーハーベスティングとAI・IoT の未来~涙液糖・自然光からのエネルギーハーベスティングと AI・IoT を融合した単独自立動作可能な持続血糖モニタリング機能付きスマートコンタクトレンズ~
新津葵一
エネルギーハーベスティングコンソーシアム（EHC）総会, 26 Jun. 2020, Invited

Bio-Fuel-Cell-Operated Biosensing System: Fundamental and Forecast
Kiichi Niitsu
IEEE Latin American Symposium on Circuits and Systems (LASCAS), Feb. 2020

Energy-Autonomous AI/IoT Platform for Unconscious Healthcare ~Stand-Alone Continuous Glucose Monitoring Smart Contact Lenses~
Kiichi Niitsu
30th 2019 International Symposium on Micro-NanoMechatronics and Human Science, December 2019, Dec. 2019

AI(人工知能)とIoT(モノのインターネット)によって変革する未来の”無意識な”医療とヘルスケア～世界初の単独自立動作可能エッジAI機能付き持続血糖モニタリングコンタクトレンズの開発を通じて～
新津葵一
あいちサイエンスフェスティバル2019, 21 Nov. 2019, Invited

小型生物ナビゲーションに向けた発電センシング一体型集積血糖センサ技術の開発
新津葵一
第37回日本ロボット学会学術講演会, 07 Sep. 2019, Invited

AIとIoTの連携による未来の医療・ヘルスケア～単独動作可能持続血糖モニタリングコンタクトレンズ～
新津葵一
センシング技術コンソーシアム第28回講演会, 02 Sep. 2019, Invited

生体情報センシングに向けたフレキシブルデバイス技術動向と今後の展望
新津葵一
新化学技術推進協会次世代エレクトロニクス分科会講演会, 07 Aug. 2019, Invited

AIとIoTが切り開く未来の医療・ヘルスケア～単独動作可能エッジAI機能付き持続血糖モニタリングコンタクトレンズの研究開発を通して～
新津葵一
関西コンバーティングモノづくり研究会, 12 Apr. 2019, Invited

ナノテク応用サブナノワット集積ヘルスケアIoT ～単独動作可能・電力自立持続血糖モニタリングコンタクト～
新津葵一
第17回ナノテクノロジー総合シンポジウム, 01 Feb. 2019, Invited

CMOS biomedical IoT design for tissue engineering and regenerative medicine
Kiichi Niitsu
The 3rd Conference on Tissue Engineering and Regenerative Medicine (CTERM 2019), Jan. 2019

Society5.0時代のスマート社会・スマートライフ実現に資するバイオ燃料電池を用いた電力自立継続血糖バイオセンサ技術
新津葵一
第28回日本MRS年次大会 B-5 : スマート社会・スマートライフのためのバイオセンサ・バイオ燃料電池, Dec. 2018, Invited

医療ビッグデータ連携ヘルスケアに向けた使い捨て可能・電力自立バイオセンサ集積回路技術の開発
新津葵一
ICTイノベーションフォーラム2018, 10 Oct. 2018, Invited

Self-Powered and Energy-Autonomous CMOS biomedical IoT design for personalized health care systems
Kiichi Niitsu
IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2018), Oct. 2018

An Energy-Autonomous Biomedical IoT Platform Using Human Computer Ion-Coupled Energy Interaction for Next-Generation Diabetes Care
Kiichi Niitsu
International Conference on Solid-State Devices and Materials (SSDM), Sep. 2018, Invited

Introduction of CMOS Biosensor Design for Biomedical IoT Applications
Kiichi Niitsu
IEEE NEWCAS Conference (NEWCAS 2018), Jun. 2018

低消費電力CMOS集積回路システムとバイオ発電素子を用いた電力自立発電センシング一体型集積血糖センサによる糖尿病医療・予防革新～ヘルスケアIoT開発国プロ成果の社会実装に向けて～
新津葵一
電子情報通信学会総合大会;メディカル応用に向けた回路とシステム, 23 Mar. 2018, Invited

Biomedical IoTs Using Plasma-Enhanced CMOS Electronics -From Low-Cost Small-Form-Factor CTC/Exosome Analysis for Liquid Biopsy to Energy-Autonomous Continuous Glucose Monitoring Platform-
Kiichi Niitsu
International workshop on plasma synthesis of nanomaterials and its applications for sensor devices, 02 Mar. 2018, Invited

Energy-Autonomous Supply-Sensing Biosensor Using Low-Power CMOS LSI and Biofuel Cell for Low-invasive Edge-intelligent Blood Glucose Monitoring
Kiichi Niitsu
The 6th Asian Workshop on Smart Sensor System (AWSSS 2018), Mar. 2018, Invited

バイオ発電素子と低消費電力CMOS集積回路を用いた電力自立・発電センシング一体型集積センサ
新津葵一
第34回センサ・マイクロマシンと応用システム, 31 Oct. 2017, Invited

An Energy-Autonomous, Low-Cost Biosensing Platform Using Supply-Sensing CMOS Integrated Sensor and Bio Fuel Cell for Next-Generation Healthcare IoT
Kiichi Niitsu
Annual World Congress of Nano Science and Technology 2017 (Nano S&T 2017), Oct. 2017, Invited

CMOS集積回路とプラズマ科学による次世代バイオセンシング
新津葵一
第22回プラズマ医療サイエンスの扉, 21 Jul. 2017, Invited

―あなたと考えるあたらしい科学とくらし―『コンピュータが人間を健康にする未来を目指そう！』
新津葵一
サイエンティストクエスト, Jun. 2017, Invited

CMOS Bioelectronics for Healthcare and Bio-Analysis IoT
Kiichi Niitsu
Sensors (ET CMOS), May 2017, May 2017, Invited

電力自立ヘルスケアIoTに向けたバイオ発電素子と低消費電力CMOS集積回路を用いた発電センシング一体型集積センサ
新津葵一
電子情報通信学会総合大会、IoTを支える要素回路技術とその応用, 25 Mar. 2017, Invited

Energy-Autonomous Biosensing Platform Using Supply-Sensing CMOS Integrated Sensor and Bio Fuel Cell
Kiichi Niitsu
The 4th Asian Workshop on Smart Sensor System (AWSSS 2016), Mar. 2016, Invited

CMOS Bio-Imaging Platform for Next-Generation Plasma-Enhanced Biomedical Applications
Kiichi Niitsu; Hiroki Kondo; Masaru Hori; Kazuo Nakazato
6th International Conference on Advanced Plasma Technologies (ICAPT-5), Mar. 2016, Invited

CMOS Electrochemical Sensing Platform for Personalized Healthcare with Medical Big Data
Kiichi Niitsu; Kazuo Nakazato
International Conference on Integrated Circuits, Design, and Verification (ICDV 2015), Aug. 2015, Invited

CMOS Platforms for Biomedical Application -DNA Sequencing, Glucose Detection, and Bacteria Counting-
Kiichi Niitsu; Kazuo Nakazato
International Conference on Integrated Circuits, Design, and Verification (ICDV 2014), Nov. 2014, Invited

3次元システム集積のための低消費電力チップ間インタフェースの開発 ~A-SSCC2007発表報告を交えて~
新津葵一
VDECデザイナーズフォーラム2008, Jun. 2008, Invited

Books and Other Publications

テレワーク社会を支える自立駆動型コンタクトレンズ型センサ
新津葵一, Single work
CMC出版, 26 Apr. 2021

自立駆動型コンタクトレンズ型センサ
新津葵一, Single work
CMC出版, 07 Mar. 2021

電力自立ヘルスケア AI・IoT を実現する化学と電子情報通信技術の融合によるバイオ発電・センシングー体型集積システムの開発~単独自立動作血糖モニタリングコンタクトレンズの実現を目指して~
新津葵一
化学工業７月号、化学工業社, Jun. 2020

スマートコンタクトレンズ型グルコースセンサ
新津葵一
酵素トランスデューサーと酵素技術展開―酵素センサ&バイオ電池、そして酵素処理応用(食品,医薬,修復) CMC出版, Mar. 2020

涙から血糖値測定、コンタクトレンズにセンサー搭載給電とセンシングを同時に行うグルコース発電素子
新津葵一, コンバーテック1月号、Convertech International、加工技術研究会
Jan. 2020

Energy-Autonomous Supply-Sensing Biosensor Platform Using CMOS Electronics and Biofuel Cells
Kiichi Niitsu
Smart Sensors at the IoT Frontier, May 2017

Wireless Power Delivery
Kiichi Niitsu
Handbook of Power Management Circuits, Mar. 2016

An Inductive-Coupling Inter-Chip Link for High-Performance and Low-Power 3D System Integration
Kiichi Niitsu; Tadahiro Kuroda
Solid-State Circuits Technologies, Jan. 2010

Industrial Property Rights

特願2024-149947, アナログデジタル変換回路及びそれを備えた半導体チップ
新津葵一

特開2025-37688, 特願2023-144775, 腸管壁保持装置
山中俊郎; 新井史人; 伊藤大知; 藤城光弘; 辻陽介; 新津葵一

特許11,347,083, 特開US-2021-0240014-A1, 特願17/052,583, Measuring device, container device, and measuring system
K.Niitsu

特許第7042486号, 特開2019-186711, 特願2018-074251, 集積回路用低周波数信号発生回路素子
新津葵一; 西尾祐哉; 林賢哉; 小林敦希

特許第7265756号, 特開2020-162072, 特願2019-062180, 送信装置
新津葵一; 林賢哉; 小林敦希

特許第6759881号, 特開2018-40580, 特願2016-172865, 生体分子検出装置および生体分子検出装置の製造方法
新津葵一; 牛島栄造; 岩田裕司; 中里和郎

特許第6687938号, 特開2017-125914, 特願2016-004336, 送信回路、生体分子検出装置、検出データ収集方法、検出データ収集システム
新津葵一

特願2018-093952, 測定器、収納装置および測定システム
新津葵一

特開2015-210233, 特願2014-093755, 超並列的生体分子検出方法および装置
中里和郎; 新津葵一; 瀧日慎志

特許第5703324号, 特開2014-179665, 特願2013-050319, 時間増幅回路及びその特性テストを実行するためのプログラム
新津葵一; 小林春夫

特許第5501317号, 特開2013-070172, 特願2011-206258, 時間差増幅回路
新津葵一; 針谷尚裕; 櫻井正人; 小林春夫

特許第5451571号, 特開2012-73169, 特願2010-219286, オンチップジッタデータ取得回路、ジッタ測定装置、及びその方法
新津葵一; 小林春夫

特許No.8829985, 特願13/601,139, TIME DIFFERENCE AMPLIFIER CIRCUIT
K.Niitsu; N.Harigai; M.Sakurai; H.Kobayashi

Awards

Jan. 2023
第10回京都SMI中辻賞(特定非営利活動法人京都SMI)

May 2023
LSTとシステムのワークショップ最優秀ポスター賞（学生部門）

May 2023
IEEE Circuits and Systems Society, Best Paper Recognition

03 Feb. 2022
令和3年度SCOPE研究開発奨励賞(戦略的情報通信研究開発推進事業事務局)

20 Jan. 2022
IEEE/ACM ASP-DAC 2022 Best Design Award

24 Sep. 2021
VDECデザインアワード奨励賞

11 May 2021
IEEE SSCS Japan Chapter Academic Research Award

11 May 2021
最優秀ポスター賞(電子情報通信学会集積回路研究会)

25 Nov. 2020
IEEE ICECS Young Professionals 2020 Best Paper Award

26 Sep. 2020
VDECデザインアワード嘱望賞

09 Oct. 2019
第3回バイオインダストリー奨励賞(一般財団法人バイオインダストリー協会)

14 May 2019
IEEE SSCS Kansai Chapter Academic Research Award

22 Jan. 2019
IEEE/ACM (ASP-DAC) 2019 Special Feature Award

18 Oct. 2018
IEEE Biomedical Circuits and Systems Conference(BioCAS) 2018 Best Live Demonstration Award

07 Jun. 2018
電子情報通信学会末松安晴賞

23 Mar. 2018
CST YEP Award 2017 特別賞(AET)

19 Apr. 2017
科学技術分野の文部科学大臣表彰若手科学者賞

23 Mar. 2017
CST YEP AWARD 2016 社長賞(AET)

18 Oct. 2016
IEEE Biomedical Circuits and Systems Conference 2016 Best Paper Award

17 May 2016
電子情報通信学会集積回路研究会若手研究会優秀ポスター賞

14 Jan. 2016
愛知県若手研究者イノベーション創出奨励事業　わかしゃち奨励賞優秀賞

12 May 2015
LSIとシステムのワークショップ2015最優秀ポスター賞(電子情報通信学会)

20 Dec. 2014
IEEE Nagoya Section Young Researcher Award

04 Feb. 2014
赤﨑賞(国立大学法人名古屋大学)

18 Jan. 2013
エヌエフ基金　研究開発奨励賞

01 Feb. 2012
IEEE ACM Asia-South Pathific Design Automation Conference2012University LSI DesignContestDesignAward

29 Nov. 2011
Ericsson Young Scientist Award 2011(Ericsson Japan K.K.)

18 Jun. 2011
安藤博記念学術奨励賞(財団法人安藤研究所)

28 May 2011
船井研究奨励賞(公益財団法人船井情報科学振興財団)

12 Feb. 2011
第34回　丹羽保次郎記念論文賞(東京電機大学学術振興基金)

10 Mar. 2010
Excellent Achievement Award 2009(Keio University Global COE Program)

20 May 2009
IEEE SSCS Japan Chapter Academic Research Award

30 Mar. 2009
藤原賞(慶應義塾大学理工学部・大学院理工学研究科藤原奨学基金)

10 Mar. 2009
Distinguished Research Associate 2008(Keio University Global COE Program)

07 Jun. 2008
IEEE SSCS Japan Chapter Young Researcher Award

24 Jul. 2007
猪瀬学術奨励賞（財団法人電気・電子情報学術振興財団）

23 Mar. 2006
慶応工学会賞

23 Mar. 2006
優秀卒業論文賞（慶應義塾大学理工学部電子工学科）

Media Coverage

血糖値涙で推定京大、コンタクトレンズ試作糖分で発電
読売新聞, 05 Jul. 2024, Paper

京大など、発電量に合わせて動作する半導体集積回路の開発に成功
マイナビニュース, 18 Jun. 2024, Internet

環境適応電源・デジタル変換半導体集積回路の開発に成功〜22nmで実証、体内で自律動作するIoTの開発へ〜
国立研究開発法人科学技術振興機構・京都大学, 18 Jun. 2024, Internet

針刺さずに血糖値測定糖尿病予防に期待名古屋大学などセンサー開発
日本経済新聞, 18 Jun. 2019, Paper

名古屋大の研究チームが「30分後の低血糖」を予測するシステムを開発
Med It Tech, 17 Apr. 2019, Internet

人工知能(AI)を使った血糖値予測システムを開発 30分後の血糖値を予測
日本生活習慣病予防協会, 15 Apr. 2019, Internet

人工知能(AI)を使った血糖値予測システムを開発 30分後の血糖値を予測
糖尿病ネットワーク, 12 Apr. 2019, Internet

名大，AIによる血糖値予測システムを開発
OPTRONICS ONLINE, 09 Apr. 2019, Internet

人工知能を用いた血糖値予測システムを新たに開発－名大
QlifePro, 09 Apr. 2019, Internet

血糖をモニタリングするコンタクトレンズ型装置の試作に名古屋大学が成功
大学ジャーナルオンライン, 28 Oct. 2018

コンタクトレンズを装着するだけで血糖値を持続的にモニタリング
糖尿病ネットワーク, 25 Oct. 2018, Internet

コンタクトレンズを装着するだけで血糖値を持続的にモニタリング無線給電が不要の世界最小センサーを開発名古屋大学
糖尿病リソースガイド, 23 Oct. 2018, Internet

給電端末が不要なコンタクトレンズ方式の持続型血糖モニタリング装置を試作－名大
医療ＮＥＷＳ, 22 Oct. 2018

血糖値コンタクトで測定名大実用化目指す
朝日新聞朝刊, 18 Oct. 2018, Paper

コンタクトにつけて血糖値測定超小型の装置開発
朝日新聞デジタル, 17 Oct. 2018, Paper

名大とJST、世界最小クラスの発電・センシング一体型血糖センサーを開発－コンタクトレンズ方式の血糖管理を実現へ
日本経済新聞, 17 Oct. 2018, Paper

External funds: Kakenhi

集積回路への細胞固定による生体反応の制御と検出
Grant-in-Aid for Challenging Research (Exploratory)
Medium-sized Section 90:Biomedical engineering and related fields
Kyoto University
樋口ゆり子
From 30 Jun. 2022, To 31 Mar. 2024, Granted
細胞;集積回路;クリック反応
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K19917/

High-Spacial-Resolution Distributed Integrated Biosensors Using Localized Two-Way Space-Time Synchronization
Grant-in-Aid for Scientific Research (B)
Basic Section 60040:Computer system-related
Kyoto University
新津葵一
From 01 Apr. 2022, To 31 Mar. 2025, Granted
バイオセンサ;半導体集積回路;時空間同期;高空間分解能;分散型センサ;空間分解能;IoT;集積回路設計;低消費電力設計
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22H03557/

Energy-Harvesting-and-Sensing-Combined Integrated Blood Glucose Sensor for Continuous Blood Glucose Monitoring in Dark Space
Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)
Complex systems
Kyoto University;Nagoya University
新津葵一
From 01 Apr. 2019, To 31 Mar. 2021, Project Closed
半導体集積回路;バイオセンサ;IoT;電力自立;22nm CMOS;先端半導体;集積回路設計;アナログ集積回路;持続血糖モニタリング;発電センシング一体型集積センサ;CMOS集積回路;ヘルスケア;AI;環境発電;生体発電;グルコース発電;ＣＭＯＳ;無線通信
https://kaken.nii.ac.jp/grant/KAKENHI-PUBLICLY-19H04932/

A Scalable Time-Domain Sensor Integrated Circuit for High-Resolution Bioimaging
Grant-in-Aid for Young Scientists (A)
Nagoya University
Kiichi Niitsu
From 01 Apr. 2016, To 31 Mar. 2020, Project Closed
半導体集積回路;バイオセンサ集積回路;IoT;低消費電力;CMOS;センサアレイ;高速動作;バイオセンサ;ヘルスケア;バイオイメージング;ＣＭＯＳ;集積回路;スケーラブル;高解像度;電子デバイス・機器;バイオデバイス;デバイス設計・製造プロセス;回路設計;スマートセンサ;バイオテクノロジー;スマートセンサ情報システム;マイクロアレイ;計算機システム
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16H06088/

化学集積回路の創成-半導体集積回路上に化学を集積
Grant-in-Aid for Scientific Research (A)
Nagoya University
中里和郎
From 01 Apr. 2013, To 31 Mar. 2014, Discontinued
化学集積回路;バイオセンサ集積回路;オンチップ電気化学計測;CMOS集積センサ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25249046/

Chemistry integrated circuit and its application to portable biomedical equipment
Grant-in-Aid for Scientific Research (S)
Nagoya University
Kazuo Nakazato
From 31 May 2013, To 31 Mar. 2018, Project Closed
電子デバイス・集積回路;バイオセンサ集積回路;化学集積回路;オンチップ電気化学計測;CMOS集積センサ
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-25220906/

Development of Wireless Jitter Testing System Using Inductive-Coupling Interface
Grant-in-Aid for Young Scientists (B)
Nagoya University
Kiichi Niitsu
From 01 Apr. 2012, To 31 Mar. 2016, Project Closed
半導体集積回路;ジッタ;テスト容易化技術;低消費電力;低コスト;高速化;集積回路設計;アナログ集積回路;アナログ回路;クロック回路;テスト容易化;低消費電力化回路技術;高速化回路技術;デジタル回路;低電力化回路技術
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-24760266/

Development of 3D CMOS MEMS System Using Inductive-Coupling Inter-Chip Link
Grant-in-Aid for Research Activity Start-up
Gunma University
Kiichi NIITSU
From 01 Apr. 2010, To 31 Mar. 2012, Project Closed
集積回路設計;半導体集積回路;CMOS;MEMS;三次元LSIシステム;通信回路技術;高周波回路技術
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22860011/

High-Spacial-Resolution Distributed Integrated Biosensors Using Localized Two-Way Space-Time Synchronization
Grant-in-Aid for Scientific Research (B)
Basic Section 60040:Computer system-related
Kyoto University
新津葵一
From 01 Apr. 2022, To 31 Mar. 2025, Granted
半導体集積回路;低消費電力回路設計;バイオセンサ集積回路;IoT;無線通信用集積回路;バイオセンサ;時空間同期;高空間分解能;分散型センサ;空間分解能;集積回路設計;低消費電力設計
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K24813/

External funds: others

生体内サイバネティック・アバターによる健康・医療の実現
国立研究開発法人科学技術振興機構, ムーンショット型研究開発事業
From 2022
新井　史人
新津　葵一

涙液糖発電センサとパッシブ通信による自立血糖モニタコンタクト
国立研究開発法人新エネルギー・産業技術総合開発機構, 未踏チャレンジ２０５０
From 01 Apr. 2021, To 31 Mar. 2027
新津　葵一

全デジタル構成超低消費電力スケーラブルCMOSテラヘルツ送信器回路
総務省, Beyond 5G時代に向けた戦略的な知財・標準化、事業化等促進支援プロジェクト
From 01 Apr. 2021, To 31 Mar. 2022
新津　葵一

砂粒サイズ電力自立個体識別・センシング・管理アクティブIoTタグ
国立研究開発法人科学技術振興機構, 社会還元加速プログラム
From 01 Apr. 2021, To 31 Mar. 2022
新津　葵一

環境適応エネルギー・データ統合管理IoT基盤
国立研究開発法人科学技術振興機構, 戦略的創造研究推進事業（さきがけ）
From 01 Nov. 2020, To 31 Mar. 2024
新津　葵一

持続可能スマート社会実現のためのＷＰＴシステム基盤技術
内閣府, 戦略的イノベーション創出プログラム(SIP) 「脱炭素社会実現のためのエネルギーシステム」
From 01 Nov. 2018, To 31 Mar. 2023
天野浩
新津葵一

高信頼・低消費電力・電波有効利用バイオメディカルIoTの実現に向けたパッシブ型人体通信技術の開発
総務省, 戦略的情報通信研究開発推進制度
From 01 Apr. 2018, To 31 Mar. 2021
新津　葵一

医療ビッグデータ連携ヘルスケアに向けた使い捨て可能・電力自立バイオセンサ集積回路技術の開発
戦略的情報通信研究開発推進制度若手ICT研究者等育成型
From 01 Apr. 2015, To 31 Mar. 2018
新津葵一

データ実証型医療に向けた非侵襲・高時間分解能生体ビッグデータ収集のための発電センシング一体型集積センサの実現
国立研究開発法人科学技術振興機構, 戦略的創造研究推進事業　さきがけ
From 01 Apr. 2015, To 31 Mar. 2019
新津葵一

生体－半導体ハイブリッドセンサ技術の研究開発
総務省, 戦略的情報通信研究開発推進制度 ICTイノベーション創出型研究開発
From 01 Oct. 2012, To 31 Mar. 2015
中里和郎
新津葵一

低ジッタ時間差増幅回路を用いた超高分解能オンチップジッタ測定回路の開発
国立研究開発法人科学技術振興機構, 研究成果展開事業研究成果最適展開支援プログラムフィージビリティスタディ【ＦＳ】ステージ　探索タイプ
From 01 Apr. 2011, To 31 Mar. 2012
新津葵一

Last Updated :2025/04/23

Education

Teaching subject(s)

From 01 Apr. 2024, To 31 Mar. 2025
Fundamental Practice of Electrical & Electronic Engineering
6119, Fall, Faculty of Engineering, 2

From 01 Apr. 2024, To 31 Mar. 2025
Digital Circuits
6060, Spring, Faculty of Engineering, 2

From 01 Apr. 2024, To 31 Mar. 2025
Engineering Ethics
2105, Spring, Faculty of Engineering, 2

From 01 Apr. 2024, To 31 Mar. 2025
System-Level Design Methodology for SoCs
3635, Fall, Graduate School of Informatics, 2

From 01 Apr. 2023, To 31 Mar. 2024
Digital Circuits
6060, Spring, Faculty of Engineering, 2

From 01 Apr. 2023, To 31 Mar. 2024
Fundamental Practice of Electrical & Electronic Engineering
6119, Fall, Faculty of Engineering, 2

From 01 Apr. 2023, To 31 Mar. 2024
System-Level Design Methodology for SoCs
3635, Fall, Graduate School of Informatics, 2

Participation in PhD Defense

Leakage-Current-Aware Layout Design of DNTT-Based OTFTs and Its Applications to Digital Circuits
OSHIMA KUNIHIRO, Graduate School of Informatics, Sub-chief Examiner
25 Mar. 2024

Robust Design of Low-voltage OTFT Circuits for Flexible Electronic Systems
QIN ZHAOXING, Graduate School of Informatics, Sub-chief Examiner
23 Mar. 2023

電力変換回路におけるパワーモジュールの熱設計に向けた特性測定とモデリング
NAKAMURA YOHEI, Graduate School of Informatics, Sub-chief Examiner
23 Mar. 2023

Student achievements: Awards

最優秀ポスター賞
稲田雅治、北池弘明、田川宏紀、寺内充、長井亮輔、伊藤榛一、田中彬義, LSIとシステムのワークショップ2023, 10 Apr. 2023

Best Design Award
Guowei Chen, ASP-DAC 2022, 20 Jan. 2022

VDECデザインアワード奨励賞
辻村拓也, d.lab-VDECデザイナーズフォーラム2021, 24 Sep. 2021

最優秀ポスター賞
辻村拓也, 村上峻哉, 伊藤榛一,田中彬義, 陳国威, LSIとシステムのワークショップ2021, 11 May 2021

IEEE SSCS Japan Chapter Academic Research Award
Guowei Chen, Xinyang Yu, Yue Wang, Tran Minh Quan, Naofumi Matsuyama, Takuya Tujimura, Xujiaming Chen, Sora Kato, Yuma Hayashi, Akiyoshi Tanaka, Huy Nghiep DUONG, Md. Zahidul Islam, LSIとシステムのワークショップ2021, 11 May 2021

2021年IEEE名古屋支部国際会議研究発表賞受賞
辻村拓也, 2021年IEEE名古屋支部国際会議, 30 Mar. 2021

Best Paper Award
Kosuke Uchiyama, Guowei Chen, IEEE ICECS Young Professionals 2020, Nov. 2020

VDECデザインアワード嘱望賞
村上峻哉, d.lab-VDECデザイナーズフォーラム2020, 26 Sep. 2020

2020年IEEE名古屋支部国際会議研究発表賞受賞
村上峻哉, 2020年IEEE名古屋支部国際会議, 04 Apr. 2020

IEEE SSCS Kansai Chapter Academic Research Award
林賢哉, 荒田滋樹, 小林敦希, LSIとシステムのワークショップ, 14 May 2019

Special Feature Award
M. Matsunaga, T. Nakanishi, A. Kobayashi, IEEE/ACM (ASP-DAC) 2019, 22 Jan. 2019

Best Live Demonstration Award
K. Hayashi, S. Arata, G. Xu, S. Murakami, D. C. Bui, T. Doike, M. Matsunaga, A. Kobayashi, IEEE Biomedical Circuits and Systems Conference (BioCAS) 2018, 18 Oct. 2018

IEEE名古屋支部優秀学生賞
小林敦希, 26 Mar. 2018

特別賞
中西大貴、松永摩耶、小林敦希, CST YEP Award 2017, Mar. 2018

国際会議研究発表賞
小林敦希, IEEE名古屋支部, 01 Apr. 2017

Excellent Student Award
蒲晃平, IEEE名古屋支部, 25 Mar. 2017

Student achievements: Papers

Design and Experimental Verification of A 2.1 nW 0.018 mm2 Slope ADC-Based Supply Voltage Monitor for Biofuel-Cell-Powered Supply-Sensing Systems in 180-nm CMOS
Guowei Chen, Xujiaming Chen and Kiichi Niitsu
Mar. 2022, IEICE Transactions on Electronics, E105.C, 10, 565, 570
https://doi.org/https://doi.org/10.1587/transele.2021CTS0001

A 0.5-mm2 Solar Cell-Powered Biofuel Cell-Input Biosensing System with LED Driving for Stand-Alone RF-Less Continuous Glucose Monitoring Contact Lens
Guowei Chen, Yue Wang, Tran Minh Quan, Naofumi Matsuyama, Takuya Tsujimura and Kiichi Niitsu,
Feb. 2022, IEEE Solid-State Circuits Letters, 5, 41, 44
https://doi.org/https://doi.org/10.1109/LSSC.2022.3151904

Solar-Cell-Assisted, 99% Biofuel Cell Area Reduced, Biofuel-Cell-Powered Wireless Biosensing System in 65nm CMOS for Continuous Glucose Monitoring Contact Lenses
Guowei Chen and Kiichi Niitsu
Dec. 2021, EICE Transactions on Electronics, E105.C, 7, 343, 348

Design and Verification of Stochastic Oscillator Using Multiple Ring Oscillators and OR-gate for Low-voltage Operation in 65 nm CMOS
Shunya Murakami, Kenya Hayashi, Shigeki Arata, Ge Xu, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu
Aug. 2020, Sensors and Materials, 32, 8, 2607, 2614
https://doi.org/https://doi.org/10.18494/SAM.2020.2496

Design and Theoretical Analysis of Bit Error Rate (BER)-modulated Inductive-coupling Transceiver Using Dynamic Intermediate Interference Control Technique for Low-power Communication
Ge Xu, Kenya Hayashi, Shigeki Arata, Shunya Murakami, Dang Cong Bui, Atsuki Kobayashi and Kiichi Niitsu
Aug. 2020, Sensors and Materials, 32, 8, 2631, 2639
https://doi.org/https://doi.org/10.18494/SAM.2020.2558

Low-Voltage Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS
Atsuki Kobayashi, and Kiichi Niitsu
Feb. 2020, IEEE Open Journal of Circuits and Systems (OJCAS), 1, 107, 114
https://doi.org/https://doi.org/10.1109/OJCAS.2020.3007393

Design of a Self-Controlled Dual-Oscillator-Based Supply Voltage Monitor for Biofuel-Cell-Combined Biosensing Systems in 65-nm CMOS and 55-nm DDC CMOS
Atsuki Kobayashi, Kenya Hayashi, Shigeki Arata, Shunya Murakami, Ge Xu, and Kiichi Niitsu
Dec. 2019, IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), 13, 6, 1152, 1162
https://doi.org/https://doi.org/10.1109/TBCAS.2019.2950509

An FSK Inductive-Coupling Transceiver Using 60mV 0.64fJ/bit 0.0016mm2 Load-Modulated Transmitter and LC-Oscillator-Based Receiver in 65nm CMOS for Energy-Budget-Unbalanced Application
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu
Jul. 2019, IEICE Trans. Elec, E102.C, 7, 585, 589
https://doi.org/https://doi.org/10.1587/transele.2018CTS0002

A 385×385µm2 0.165V 0.27nW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu
Jul. 2019, IEICE Trans. Elec, E102.C, 7, 590, 594
https://doi.org/https://doi.org/10.1587/transele.2018CTS0005

Design and analysis of a three-dimensional millimeter-wave frequency-shift based CMOS biosensor using vertically stacked spiral inductors in LC oscillators
Maya Matsunaga, Taiki Nakanishi, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
Mar. 2019, Analog Integrated Circuits and Signal Processing (ALOG), 98, 3, 453, 464
https://doi.org/https://doi.org/10.1007/s10470-018-1267-5

Yield and open-circuit-voltage enhancement of 0.36 mm2 Solid-State CMOS-compatible glucose fuel cell by using repeated separator coating
Shigeki Arata, Kenya Hayashi, Xu Ge, Shunya Min Proc. urakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu
Feb. 2019, Japanese Journal of Applied Physics, 58, SB, SBBG11
https://doi.org/https://doi.org/10.7567/1347-4065/aafc9e

A 6.1nA Fully-Integrated CMOS Supply-Modulated OOK Transmitter in 55nm DDC CMOS for Glass-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi, Shigeki Arata, Shunya Murakami, Yuya Nishio, Atsuki Kobayashi, and Kiichi Niitsu,
Oct. 2018, IEEE Transactions on Circuits and Systems II (TCAS-II), 65, 10, 1360, 1364
https://doi.org/https://doi.org/10.1109/TCSII.2018.2860636

Wafer-scale development and experimental verification of 0.36-mm^2 228-mV open-circuit-voltage solid-state CMOS-compatible glucose fuel cell for healthcare IoT application
Shigeki Arata, Kenya Hayashi, Yuya Nishio, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
Mar. 2018, Japanese Journal of Applied Physics, 57, 4S, 04FM04
https://doi.org/https://doi.org/10.7567/JJAP.57.04FM04

Theoretical analysis and simulation study of low-power CMOS electrochemical impedance spectroscopy biosensor in 55 nm deeply depleted channel technology for cell-state monitoring
Keisuke Itakura, Keisuke Kayano, Kazuo Nakazato and Kiichi Niitsu
Jan. 2018, Japanese Journal of Applied Physics, 57, 1S, 01AG02
https://doi.org/https://doi.org/10.7567/JJAP.57.01AG02

A 40 GHz fully integrated circuit with a vector network analyzer and a coplanar-line-based detection area for circulating tumor cell analysis using 65 nm CMOS technology
Taiki Nakanishi, Maya Matsunaga, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
Jan. 2018, Japanese Journal of Applied Physics, 57, 3S2, 03EC01
https://doi.org/https://doi.org/10.7567/JJAP.57.03EC01

Design Trade-Off between Spatial Resolution and Power Consumption in CMOS Biosensor Circuit Based on Millimeter-Wave LC-Oscillator Array
Maya Matsunaga, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
Jan. 2018, Japanese Journal of Applied Physics, 57, 3S2, 03EC02
https://doi.org/https://doi.org/10.7567/JJAP.57.03EC02

Design and Experimental Verification of a 0.19 V 53 μW 65 nm CMOS Integrated Supply-Sensing Sensor With a Supply-Insensitive Temperature Sensor and an Inductive-Coupling Transmitter for a Self-Powered Bio-sensing System Using a Biofuel Cell
Atsuki Kobayashi, Kei Ikeda, Yudai Ogawa, Hiroyuki Kai, Matsuhiko Nishizawa, Kazuo Nakazato, and Kiichi Niitsu
Nov. 2017, IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), 11, 6, 1313, 1323
https://doi.org/https://doi.org/10.1109/TBCAS.2017.2735447

Design, theoretical analysis, and experimental verification of a CMOS current integrator with 1.2 × 2.05 µm2 microelectrode array for high-sensitivity bacterial counting
Kohei Gamo, Kazuo Nakazato, and Kiichi Niitsu
Jan. 2017, Japanese Journal of Applied Physics, 56, 1S, 01AH01
https://doi.org/https://doi.org/10.7567/JJAP.56.01AH01

Energy-efficient and low-voltage design methodology for a supply-sensing CMOS biosensor using biofuel cells for energy-autonomous healthcare applications
Atsuki Kobayashi, Kei Ikeda, Kazuo Nakazato, and Kiichi Niitsu
Jan. 2017, Japanese Journal of Applied Physics, 56, 1S, 01AH03
https://doi.org/https://doi.org/10.7567/JJAP.56.01AH03

Sub-1-V CMOS-Based Electrophoresis Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation
Yuuki Yamaji, Kazuo Nakazato, and Kiichi Niitsu
Jan. 2017, IEICE Transactions on Electronics, E100-C, 6, 592, 596
https://doi.org/https://doi.org/10.1587/transele.E100.C.592

Design and Analysis of Scalability in Current-Mode Analog-to-Time Converter for an Energy-Efficient and High-Resolution CMOS Biosensor Array
Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
Jan. 2017, IEICE Transactions on Electronics, E100-C, 6, 597, 601
https://doi.org/https://doi.org/10.1587/transele.E100.C.597

A Current-Integration-Based CMOS Amperometric Sensor with 1024 × 1024 Bacteria-Sized Microelectrode Array for High-Sensitivity Bacteria Counting
Kohei Gamo, Kazuo Nakazato, and Kiichi Niitsu
Jan. 2017, IEICE Transactions on Electronics, E100-C, 6, 602, 606
https://doi.org/https://doi.org/10.1587/transele.E100.C.602

Design and Electrochemical Measurement of a Current-Mode Analog-to-Time Converter with Short-Pulse Output Capability Using Local Intra-Cell Activation for High-Speed Time-Domain Biosensor Array
Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
Jan. 2017, Analog Integrated Circuits and Signal Processing (ALOG), 92, 3, 403, 423
https://doi.org/https://doi.org/10.1007/s10470-017-1003-6

A Current-Integration-Based CMOS Amperometric Sensor with 1024 × 1024 Bacteria-Sized Microelectrode Array for High-Sensitivity Bacteria Counting
Kohei Gamo, Kazuo Nakazato, and Kiichi Niitsu
2017, IEICE Transactions on Electronics, E100-C, 6, 602, 606
https://doi.org/https://doi.org/10.1541/ieejsmas.137.291

Student achievements: Presentations

バイオ医療LoTに向けた分解能・サイズ・電力スケーラブルなサブテラヘルツ帯ラベルフリー3次元センサアレイの12nmFinFET/22nmCMOSでの理論的・実験的検証
稲田雅治、北池弘明、田川宏紀、寺内充、長井亮輔、伊藤榛一、田中彬義、大崎雄也、金子優哉、中村迅、新津葵一
LSIとシステムのワークショップ, 10 May 2023, From 10 May 2023, Not invited, Japanese, Poster presentation

A Battery-Less 0.37 V 126 nW 0.29 mm2 65-nm CMOS Biofuel-Cell-Modulated Biosensing System Featuring an FSK-PIM-Combined 2.4 GHz Transmitter for Continuous Glucose Monitoring Contact Lenses
Guowei Chen, Akiyoshi Tanaka and Kiichi Niitsu
in Proc. IEEE Symposium on Circuits and Systems (ISCAS 2023), Mar. 2023

A 4.5-mW 22-nm CMOS Label-Free Frequency-Shift 3×3×2 3D Biosensor Array Using Vertically-Stacked 60-GHz LC Oscillators
Akiyoshi Tanaka, Guowei Chen, and Kiichi Niitsu
IEEE International Symposium on Integrated Circuits and Systems (ISICAS 2022), Oct. 2022

A 22nm CMOS 1.25V 29pW 0.000013 mm2 Supply Voltage Detector Using Stacked 3 Thick-Gate-Oxide PMOSs and Dynamic Leakage Suppression Buffer
Yuma Hayashi and Kiichi Niitsu
International Conference on Solid State Devices and Materials (SSDM 2022), Sep. 2022

A 4.8-mW Label-free Frequency-shift 3×3×2 3D Biosensor Array with Vertically-stacked60-GHz LC Oscillators in 22-nm CMOS
Akiyoshi Tanaka, Guowei Chen and Kiichi Niitsu
2022 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2022), Aug. 2022

A 0.00023 mm2 1.2V 0.48mW 18GHz Passive-Less Digital Wireless Transmitter with On-Chip Antenna in 22nm Bulk CMOS
Shinichi Ito, Akiyoshi Tanaka, Guowei Chen, Xujiaming Chen and Kiichi Niitsu
2022 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS 2022), Aug. 2022

A 52.3% Peak Efficiency 22nm CMOS Low-Power Light-Adaptive Self-Oscillating Voltage Doubler Using Scalable Dynamic Leakage-Suppression Logic
Xujiaming Chen, Guowei Chen, Xinyang Yu, Yue Wang and Kiichi Niitsu
IEEE Latin American Symposium on Circuits and Systems (LASCAS 2022), Mar. 2022

A Low Power Self-Oscillating Voltage Doubler With Dynamic Leakage-Suppression Logic
Kato Sora, Chen Guowei and Kiichi Niitsu
IEEE Latin American Symposium on Circuits and Systems (LASCAS 2022), Mar. 2022

22nm CMOS pW Standby Power Flip-Flops with/without Security using Dynamic Leakage Suppression Logic
Huy Duong, Guowei Chen and Kiichi Niitsu
IEEE Latin American Symposium on Circuits and Systems (LASCAS 2022), Mar. 2022

CMOS-Based Biosensor Using Broadband Tunable Active-Inductor-Based VCO with γ-Dispersion for Detecting CTCs and Exosomes
Takuya Tsujimura and Kiichi Niitsu
EEE Latin American Symposium on Circuits and Systems (LASCAS 2022), Mar. 2022

Design of Wideband CMOS Biosensor with Active-Inductor-Based VCO for DetectingCTCs and Exosomes
Takuya Tsujimura, Guowei Chen, Yuma Hayashi, Sora Kato and Kiichi Niitsu
ISPlasma2022/IC-PLANTS2022, Mar. 2022

A FSK Wireless Transmitter in 22-nm CMOS for Biomedical Applications with On-Chip Photodiode,
Yuma Hayashi, Guowei Chen, Kiichi Niitsu
in Proc. IEICE International Conference on Emerging Technologies for Communications (ICETC), Dec. 2021

“A 4.8mW 22nm CMOS Fully-Integrated 60-GHz 3×3×2 3D Frequency-Shift Biosensor Array Using Vertically-Stacked LC Oscillators
Akiyoshi Tanaka, Guowei Chen and Kiichi Niitsu
IEEE International Conference on Electronics, Circuits & Systems (ICECS 2021), Nov. 2021

A 0.2V 0.97nW 0.011mm^2 Fully-Passive mHBC Tag Using Intermediate Interference Modulation in 65nm CMOS
Akiyoshi Tanaka, Guowei Chen and Kiichi Niitsu
IEEE International Conference on Electronics, Circuits & Systems (ICECS 2021), Nov. 2021

A 0.5 mm2 0.31 V/0.39 V 28 nW/144 nW 65 nm CMOS Solar Cell-Powered Biofuel Cell-Input Biosensing System with PIM/PDM LED Driving for Stand-Alone RF-Less Continuous Glucose Monitoring Contact Lens
Guowei Chen, Xinyang Yu, Yue Wang, Tran Minh Quan, Naofumi Matsuyama, Takuya Tsujimura, Md. Zahidul Islam and Kiichi Niitsu
in Proc. IEEE European Solid State Circuits Conference (ESSCIRC 2021), Sep. 2021

A 22nm CMOS 0.2V 13.3nW 16T SRAM Using Dynamic Leakage Suppression and Half-Selected Free Technique
Yue Wang, Guowei Chen, Xinyang Yu, Xujiaming Chen and Kiichi Niitsu
in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2021), Sep. 2021

A 65-nm CMOS 0.4 V 49.6 nW Voltage Monitor for Small-Form-Factor Biomedical IoT Applications
Xinyang Yu, Guowei Chen, Yue Wang, Xujiaming Chen and Kiichi Niitsu
in Proc. IEEE Asia Pacific Conference on Circuits and Systems (PrimeAsia 2021), Sep. 2021

Design of CMOS Gate Driver Circuit for Power Devices with Smaller Switching Loss Using Bootstrap Technique
Jodo Shota and Niitsu Kiichi
ISPlasma2021, Mar. 2021

Design and Simulation of 33 GHz 65-nm-CMOS Small-Formfactor Direct-Conversion Receiver for Non-Invasive Continuous Glucose Monitoring
Takuya Tsujimura, Shunya Murakami, Guowei Chen, Md. Islam, and Kiichi Niitsu
ISPlasma2021, Jan. 2021

Simulation Comparison of Two Tyeps of CMOS-Based Biosensors for Detecting CTCs and Exosomes
Shunya Murakami, Takuya Tsujimura, Guowei Chen, Md. Zahidul Islam and Kiichi Niitsu
ISPlasma2021, Jan. 2021

A 0.5 mm2 Ambient Light-Driven Solar Cell-Powered Biofuel Cell-Input Biosensing System with LED Driving for Stand-Alone RF-Less Continuous Glucose Monitoring Contact Lens
Guowei Chen, Xinyang Yu, Yue Wang, Tran Minh Quan, Naofumi Matsuyama, Takuya Tsujimura and Kiichi Niitsu
Asia and South Pacific Design Automation Conference - University Design Contest (ASP-DAC UDC 2022), Paper ID 2010, Jan. 2021

Widely Tunable CMOS-Based Biosensor with an Active-Inductor-Based VCO for Detecting CTCs and Exosomes
Shunya Murakami, Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits & Systems (ICECS 2020), Nov. 2020

Design and Simulation of 33 GHz 65-nm-CMOS Small-Formfactor Direct-Conversion Receiver for Non-Invasive Continuous Glucose Monitoring
Takuya Tsujimura, Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits & Systems (ICECS 2020), Nov. 2020

Simulation Study of Full Passive Magnetic Human Body Communication in 65-nm CMOS Technology for Temperature Sensing Application
Sitong Ye, Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits & Systems (ICECS 2020), Nov. 2020

Design of Fully-Integrated Self-Powered FSK Transmitter Using On-Chip Photodiodes in 65-nm CMOS
Kosuke Uchiyama, Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits & Systems (ICECS 2020), Nov. 2020

A 72-nW 440-mV Time Register Using Stacked-NMOS-Switched Gated Delay Cell in Biomedical Applications
Guowei Chen, Dang Bui, Xin Yang Yu, Md. Zahidul Islam, Atsuki Kobayashi and Kiichi Niitsu
in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2020), Oct. 2020

ブートストラップ回路を用いた低サージ電圧かつ低スイッチング損失ゲート駆動回路
城土翔太、新津葵一
令和2年第10回d.lab-VDECデザインアワード発表, 26 Sep. 2020

オンチップフォトダイオードを用いた電力自立無線送信回路
内山晃輔、新津葵一
令和2年第10回d.lab-VDECデザインアワード発表, 26 Sep. 2020

低侵襲がん医療の実現に向けた小型広帯域CMOSバイオセンサのためのアクティブインダクタを用いた電圧制御発振器
村上峻哉、新津葵一
令和2年第10回d.lab-VDECデザインアワード発表, 26 Sep. 2020

Low-Voltage Gate-Leakage-Based Timer Using an Ampliﬁer-Less Replica-Bias Switching Technique in 55-nm DDC CMOS
Atsuki Kobayashi, and Kichi Niitsu
in Proc. IEEE International Symposium on Integrated Circuits and Systems (ISICAS 2020), Aug. 2020

Biomedical Application Via Implantable Devices By CMOS-Compatible Glucose Fuel Cells Using Carbon Nano Horn
Md. Zahidul Islam, Shigeki Arata, Kenya Hayashi, Atsuki Kobayashi, Kiichi Niitsu
in proc. International Meeting on Chemical Sensors (IMCS 2020), May 2020

Design of Solar-Cell-Powered CMOS Image Sensor Array for Energy-Autonomous Optical Imaging Application
Kosuke Uchiyama, Shota Jodo, Shunya Murakami, Md.Zahidul Islam, Atsuki Kobayashi and Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

A 180-nm CMOS Gate DriverUsing BootstrapTechniqueWith ShortSlew Ratefor13.56-MHzGaN-Based Power Electronics Applications
Shota Jodo, Toshihiro Iwaki, Kosuke Uchiyama, Md.Zahidul Islam, Jun Imaoka, Masayoshi Yamamotoand, Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

Simulation Study of Full Passive Magnetic Human Body Communication in 65-nm CMOS Technology
Sitong Ye, Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

Wearable devices for biosensing applications via CMOS compatible glucose fuel cell fabricated by carbon nanohorns
Md. Zahidul Islam, Shigeki Arata, Kenya Hayashi, Atsuki Kobayashi,Yuichi Momoi and, Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

Fully-Integrated Supply-Modulated OOK Transmitter for Self-Powered, Fuel-CellEmbedded, and Low-Cost Continuous Glucose Monitoring Contact Lens
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Atsuki Kobayashi and Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

A Widely Tunable CMOS VCO With an Actuve Inductor for Analyzing CTCs
Taiki Nakanishi, Shunya Murakami, Huseyin Ozgur Kazanci, Atsuki Kobayashi, Md. Zahidul Islam and Kiichi Niitsu
in proc. 12th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nanomaterials (ISPlasma2020), Mar. 2020

Verification of Inductive-Coupling-Based CMOS Biosensor Focusing Dielectric Loss of β-Dispersion for Detecting Exosomes Through Electromagnetic Simulation
Syunya Murakami, Taiki Nakanishi, Atsuki Kobayashi, Md. Zahidul Islam, Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2019), Nov. 2019

A Solar-Cell-Assisted, 99.66% Biofuel Cell Area Reduced, Biofuel-Cell-Powered Wireless Biosensing System in 65-nm CMOS for Continuous Glucose Monitoring Contact Lenses
Atsuki Kobayashi, Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya. Murakami, Cong Dang Bui, Tran Minh Quan, Md. Zahidul Islam, Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2019), Genova Italia, Nov. 2019

A LC-Voltage-Controlled-Oscillator-Based BiosensorFocusing on β-Dispersion for Detecting Exosome in180 nm CMOS
Shunya Murakami, Taiki Nakanishi, Kenya Hayashi, Atsuki Kobayashi, Md. ZahidulIslam, and Kiichi Niitsu
in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2019), Nov. 2019

A 2.1-nW Burst-Pulse-Counting Supply VoltageMonitor for Biofuel-Cell-Combined Biosensing Systems in 180-nm CMOS
Atsuki Kobayashi, Kenya Hayashi, Shigeki Arata, Shunya Murakami, Ge Xu, Md. Zahidul Islam, and Kiichi Niitsu
in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2019), Oct. 2019

A 40-GHz Fully-Integrated CMOS-Based Biosensor Circuit With an On-Chip Vector Network Analyzer for Circulaitng Tumor Cells Analysis
Taiki Nakanishi, Shunya Murakami, Atsuki Kobayashi, Md. Zahidul Islam, and Kiichi Niitsu
in proc. 2019 IEEE NorCAS Conference, Oct. 2019

1D structural CNH dependency in needle type Solid-state CMOS compatible glu-cose Fuel Cell for open-circuit voltage and their biomedical application
Md. Zahidul Islam, Shigeki Arata, Kenya Hayashi, Atsuki Kobayashi, Yuichi Momoi and Kiichi Niitsu
in Proc. 2019 international Conference on Solid State Devices and Materials, Sep. 2019

Desing of A CML-Based NMOS-Only SelfOscillating Voltage Doubler for Enabling UltraLow Start-Up Voltage in 65-nm CMOS Technology
Ryusei Sakai, Shunya Murakami, Taiki Nakanishi, Md Zahidul Islam, Atsuki Kobayashi, Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

Design of CMOS GaN Gate Driver for 13.56MHz GaN-Based Power Electronics Application in 180nm High-Voltage CMOS Technology
Shota Jodo, Cong Dang Bui, Kosuke Uchiyama, Md Zahidul Islam, Atsuki Kobayashi, Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

Design of On-Chip Integrated Solar Cells in 65nm CMOS Technology for Solar-Cell-Powered Continuous Glucose Monitoring Systems
Kosuke Uchiyama, Shota Jodo, Shunya Murakami, Md Zahidul Islam, Atsuki Kobayashi, Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

A 40-GHz Fully Integrated On-Chip-VNA-based Circulating Tumor Cells Analyzer in 65-nm CMOS Technology
Taiki Nakanishi, Syunya Murakami, Atsuki Kobayashi, Md. Zahidul Islam, Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

Design of Inductive-Coupling-Based CMOS Biosensor Focusing Dielectric Loss of βDispersion for Detecting Exosomes
Shunya Murakami, Taiki Nakanishi, Atsuki Kobayashi, Md. Zahidul Islam, Kiichi Niitsu
in proc. 2019 Taiwan and Japan Conference on Circuits and Systems (TJCAS 2019 at Nikko), Aug. 2019

Enhance OCV of CNH dependency in Solid-state CMOS compatible glucose Fuel Cell for next-generation internet of things (IoT)
Md. Zahidul Islam, Shigeki Arata, Kenya Hayashi, Atsuki Kobayashi, Yuichi Momoi and Kiichi Niitsu
in Proc. Molecular Electronics and Bioelectronics (M&BE), Jun. 2019

A 65-nm CMOS 1.4-nW Self-Controlled Dual-Oscillator-Based Supply Voltage Monitor for Biofuel-Cell-Combined Biosensing Systems
Atsuki Kobayashi, Kenya Hayashi, Shigeki Arata, Shunya Murakami, Ge Xu, and Kiichi Niitsu
in Proc. IEEE Symposium on Circuits and Systems (ISCAS 2019), May 2019

AI-Based Edge-Intelligent Hypoglycemia Prediction System Using Alternate Learning and Inference Method for Blood Glucose Level Data with Low-periodicity
Tran Minh Quan, Takuyoshi Doike, Dang Cong Bui, Kenya hayashi, Shigeki Arata, Atsuki Kobayashi, Md. Zahidul Islam, Kiichi Niitsu
in IEEE International Conference on Artificial Intelligence Circuits and Systems (AICAS 2019), Mar. 2019

Various Type of CNT Dispersion Applied to Bio-Fuel Cell for High Yield of Production
Md. Zahidul Islam, Shigeki Arata, Kenya Hayashi, Atsuki Kobayashi and Kiichi Niitsu
in Proc. 11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 12th International Conference on Plasma-Nano Technology & Science (ISPlasma2019 / IC-PLANTS2019), Mar. 2019

0.27nW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Self-Powered and Low-Cost Continuous Glucose Monitoring Contact Lens
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. 11th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 12th International Conference on Plasma-Nano Technology & Science (ISPlasma2019 / IC-PLANTS2019), Mar. 2019

Design of 385 x 385 µm2 0.165V 270pW Fully-Integrated Supply-Modulated OOK Transmitter in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Cong Dang Bui, Takuyoshi Doike, Maya Matsunaga, Atsuki Kobayashi, Kiichi Niitsu
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

2D Optical Imaging Using Photosystem I Photosensor Platform with 32×32 CMOS Biosensor Array
Kiichi Niitsu, Taichi Sakabe, Mariko Miyachi, Yoshinori Yamanoi, Hiroshi Nishihara, Tatsuya Tomo, Kazuo Nakazato
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

Design of Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS
Atsuki Kobayashi, Yuya Nishio, Kenya Hayashi, Shigeki Arata, Kiichi Niitsu
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

A Low-Voltage CMOS Electrophoresis IC Using Electroless Gold Plating for Small-Form-Factor Biomolecule Manipulation
Kiichi Niitsu, Yuuki Yamaji, Atsuki Kobayashi, Kazuo Nakazato
in Proc. IEEE/ACM Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2019), Jan. 2019

Reactive Ion Etching in Development of 0.6mm by 0.6mm CMOS-Compatible Solid-State Glucose Fuel Cell for Small-Form-Factor Biomedical IoT Applications
Shigeki Arata, Kenya Hayashi, Xu Ge, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. International Symposium on Dry Process (DPS 2018), Nov. 2018

A 385um × 385um 0.165 V 0.27 nW Fully-Integrated Supply-Modulated OOK CMOS TX in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Dang Cong Bui, Takuyoshi Doike, Maya Matsunaga, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2018), Oct. 2018

Live Demonstration: 385 X 385 µm2 0.165V 270pW Fully-Integrated Supply-Modulated OOK TX in 65nm CMOS for Glasses-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi, Shigeki Arata, Ge Xu, Shunya Murakami, Dang Cong Bui, Takuyoshi Doike, Maya Matsunaga, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2018), Oct. 2018

A BER-Modulated 3-Coil Inductive-Coupling Transceiver Using Dynamic Intermediate Interference Control Technique
Ge Xu, Kenya Hayashi, Shigeki Arata, Shunya Murakami, Cong Dang Bui, Atsuki Kobayashi and Kiichi Niitsu
in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2018), Oct. 2018

A Constant-Power Inductive-Coupling Transmitter Using Auxiliary Driving Technique in 65nm SOTB CMOS for Low-Power Supply-Sensing Biosensing Platform toward Healthcare IoTs
Yuya Nishio, Atsuki Kobayashi and Kiichi Niitsu
in Proc. IEEE Asia Pacific Conference on Circuits and Systems (APCCAS 2018), Oct. 2018

Design of an Energy-Autonomous Supply-Sensing Biosensor Platform Using Biofuel Cells and Human-Body-Communication Transmitter
Keisuke Kayano, Maya Matsunaga, Keisuke Itakura, Atsuki Kobayashi and Kiichi Niitsu
in Proc. IEEE Prime Asia 2018, Oct. 2018

A Stochastic Oscillator Using Multiple Ring Oscillators and OR-Gate for Low Voltage Operation in 65 nm CMOS
Shunya Murakami, Kenya Hayashi, Shigeki Arata, Ge Xu, Cong Dang Bui, Atsuki Kobayashi and Kiichi Niitsu
in Proc. IEEE Prime Asia 2018, China, Oct. 2018

A 6.1nA Fully-Integrated CMOS Supply-Modulated OOK Transmitter in 55nm DDC CMOS for Glass-Free, Self-Powered, and Fuel-Cell-Embedded Continuous Glucose Monitoring Contact Lens
Kenya Hayashi, Shigeki Arata, Shunya Murakami, Yuya Nishio, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. IEEE The International Symposium on Integrated Circuits and Systems (ISICAS 2018), Sep. 2018

10% Yield and 370-mV OCV of 0.36 mm2 Solid-State CMOS-Compatible Glucose Fuel Cell by Using Repeated Separator Coating
Shigeki Arata, Kenya Hayashi, Xu Ge, Shunya Murakami, Dang Cong Bui, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. International Conference on Solid State Devices and Materials (SSDM 2018), Sep. 2018

Demonstration of 2D Optical Imaging Using Photosystem I Photosensor Platform with 32×32 CMOS Biosensor Array
Kiichi Niitsu, Taichi Sakabe, Mariko Miyachi, Yoshinori Yamanoi, Hiroshi Nishihara, Tatsuya Tomo, Kazuo Nakazato
in Proc. IEEE International NEWCAS Conference 2018 (NEWCAS 2018), Jun. 2018

A Blood Glucose Level Prediction System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention
Takuyoshi Doike, Kenya Hayashi, Shigeki Arata, Karim Nissar Mohammad, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. IEEE International NEWCAS Conference 2018 (NEWCAS 2018), Jun. 2018

A 350-mV, Under-200-ppm Allan Deviation Floor Gate-Leakage-Based Timer Using an Amplifier-Less Replica-Bias Switching Technique in 55-nm DDC CMOS
Atsuki Kobayashi, Yuya Nishio, Kenya Hayashi, Kazuo Nakazato, and Kiichi Niitsu
in Proc. IEEE Custom Integrated Circuit Conference (CICC 2018), Apr. 2018

An AI-Enhanced Blood Glucose Sensing System Using Machine Learning Based on Recurrent Neural Network for Hypoglycemia Prevention
Takuyoshi Doike and Kiichi Niitsu
in Proc. 10th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 11th International Conference on Plasma-Nano Technology & Science (ISPlasma2018 / ICPLANTS2018), Mar. 2018

A Scalable Time-Domain Biosensor Array Using a Capacitor-Less CMATC and Logarithmic Cyclic Time-Attenuation-Based TDC with Discharge Acceleration for High-Spatial-Resolution Bio-Imaging
Kei Ikeda, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2017), Dec. 2017

A 28μm2, 0.11Hz, 4.5pW gate leakage timer using differential leakage technique in 55nm DDC CMOS for small-footprint, low-frequency and low-power timing generation
Yuya Nishio, Atsuki Kobayashi, and Kiichi Niitsu
in Proc. IEEE International Conference on Electronics, Circuits and Systems (ICECS 2017), Dec. 2017

A Three-Dimensional Millimeter-Wave Frequency-Shift Based CMOS Biosensor using Vertically Stacked Spiral Inductors in LC Oscillators
Maya Matsunaga, Taiki Nakanishi, Atsuki Kobayashi, Kiichi Niitsu
in Proc. IEEE Proc. Nordic Circuits and Systems Conference (NORCAS 2017), Dec. 2017

A Fully-Integrated Circulating Tumor Cell Analyzer Using an on-Chip Vector Network Analyzer and a Transmission-Line-Based Detection Window in 65-nm CMOS
Taiki Nakanishi, Maya Matsunaga, Atsuki Kobayashi, Kazuo Nakazato and Kiichi Niitsu
in Proc. IEEE Biomedical Circuits and Systems Conference (BioCAS 2017), Oct. 2017

Three-Dimensional Millimeter-wave Frequency-shift-based CMOS Biosensor Using Vertically Stacked LC Oscillators
Maya Matsunaga, Taiki Nakanishi, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
in Proc. IEEE Nordic Circuits and Systems Conference (NorCAS 2017), Oct. 2017

Wafer-Scale Development of 0.36 mm^2 228mV Open-Circuit-Voltage Solid-State CMOS-Compatible Glucose Fuel Cell for Healthcare IoT Application
Shigeki Arata, Kenya Hayashi, Yuya Nishio, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
in Proc. International Conference on Solid State Devices and Materials (SSDM 2017), Sep. 2017

Study on relationship between inductance and power consumption in bio integrated sensor circuit based on LC-oscillator using millimeter wave
Maya Matsunaga, Atsuki Kobayashi, Kazuo Nakazato and Kiichi Niitsu
in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017

A Fully Integrated CMOS Millimeter Wave Biosensor Circuit with An On-Chip Vector Network Analyzer for Circulating Tumor Cell (CTC) Analysis
Taiki Nakanishi, Atsuki Kobayashi, Kazuo Nakazato and Kiichi Niitsu
in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017

Enhancement of Open Circuit Voltage and Power of Implantable CMOS-Compatible Glucose Fuel Cell by Employing Pt-Supported on Nanographene in Anodic Catalyst
Kiichi Niitsu, Takashi Ando, Tomoki Amano, Atsuki Kobayashi, Keigo Takeda, Hiroki Kondo, Masaru Hori, and Kazuo Nakazato
in Proc. International Conf. on Molecular Electronics and Bioelectronics (M&BE9), Jun. 2017

Design of an energy-autonomous supply-sensing biosensor platform using biofuel cells and human-body-communication transmitter
Keisuke Kayano, Keisuke Itakura, Atsuki Kobayashi, Yuya Nishio, Kazuo Nakazato and Kiichi Niitsu
in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017

A CMOS Electrochemical Impedance Spectroscopy Biosensor in 55nm DDC Technology for High-Sensitivity Cell-State Monitoring
Keisuke Itakura, Keisuke Kayano, Kazuo Nakazato and Kiichi Niitsu
in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017

A CMOS-based bacteria-counting sensor with 1024 × 1024 baceteria-sized microelectrode array and current integration circuit
Kohei Gamo, Kazuo Nakazato and Kiichi Niitsu
in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017

NASBA Amplification and Detection of Micro-RNA Using Plasma-Treated CMOS FET-Based Redox Potential Sensor Array
Masaki Kawase, Kazuo Nakazato and Kiichi Niitsu
in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017

Design and Physical Implementation of Pad-Less CMOS Biosensor Array Chip for Low-Cost Packaging-Less Bio-Imaging Platform
Yuuya Hayashi, Kazuo Nakazato and Kiichi Niitsu
in Proc. 9th International Symposium on Advanced Plasma Science and its Applications for Nitrides and Nano materials / 9th International Conference on Plasmas-Nano Technology & Science (ISPlasma2017 / IC-PLANTS2017), Mar. 2017

A Current-Integration-Based CMOS Amperometric Sensor with 1.2 μm × 2.05 μm Electroless-Plated Microelectrode Array for High-Sensitivity Bacteria Counting
Kohei Gamo, Kazuo Nakazato, and Kiichi Niitsu
in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017

A Scalable Time-Domain Biosensor Array Using Logarithmic Cyclic Time-Attenuation-Based TDC for High-Resolution and Large-Scale Bio-Imaging
Kei Ikeda, Atsuki Kobayashi, Kazuo Nakazato, and Kiichi Niitsu
in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017

Design of an Energy-Autonomous Bio-Sensing System Using a Biofuel Cell and 0.19V 53µW Integrated Supply-Sensing Sensor with a Supply-Insensitive Temperature Sensor and Inductive-Coupling Transmitter
Atsuki Kobayashi, Kei Ikeda, Yudai Ogawa, Matsuhiko Nishizawa, Kazuo Nakazato, and Kiichi Niitsu
in Proc. ACM/IEEE Asia and South Pacific Design Automation Conference (ASP-DAC 2017), Jan. 2017

ナノレベル分解能大規模集積バイオイメージングに向けた電流モード時間分解能型センサ回路
池田景、小林敦希、中里和郎、新津葵一
電子情報通信学会 LSIとシステムのワークショップ2016, 16 May 2016, Poster presentation

ビッグデータ連携ヘルスケアＩｏＴに向けたバイオ発電と０．２５μｍＣＭＯＳ０．２３Ｖリング発振制御型近接無線送信回路による電力自立・使い捨て可能発電センシング一体型集積センサの試作評価結果と設計理論
小林敦希、安藤貴史、池田景、小川雄大、西澤松彦、中里和郎、新津葵一
電子情報通信学会 LSIとシステムのワークショップ2016, 16 May 2016, Poster presentation

Last Updated :2025/04/23

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Niitsu, Kiichi

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