Basic Information

Faculty

• Faculty of Engineering

Academic Degree

• 修士（工学）(京都大学)
• 博士（工学）(京都大学)

ID,URL

• J-Global ID

  201601018480236890

• External link

  http://cms.mtl.kyoto-u.ac.jp/hayashi.html

researchmap URL

• https://researchmap.jp/7000015483

Research

Research Areas

• Nanotechnology/Materials, Metallic materials, 酸化物 機械学習 ロボットによる自動合成
• Nanotechnology/Materials, Inorganic materials

Papers

• Recommender Systems for Materials Discovery

  Atsuto Seko; Hiroyuki Hayashi; Hisashi Kashima; Isao Tanaka

  Lecture Notes in Physics, 2020

  
• 高齢社員から若手社員へ技能伝承の"ツボ" (特集 ベテラン社員は後進育成の主役!)

  林 博之; 関根 雅泰

  エルダー = Monthly elder : 高齢者雇用の総合誌, Jan. 2020

  
• 架線振動が電車線金具に及ぼす影響と開発品の評価について (交通・電気鉄道研究会・集電技術・鉄道一般)

  堂﨑 章良; 山本 克久; 室井 芳裕; 小笠原 淳喜; 猪瀬 佳也; 林 博之

  電気学会研究会資料. TER = The papers of Technical Meeting on "Transportation and Electric Railway", IEE Japan, May 2019

  
• インド税制改正 : 上場株式の譲渡は10%にて課税

  林 博之; Pawankumar Kulkarni; Himanshu Kapoor

  International taxation = 国際税務, Nov. 2018

  
• インド税法における代理人PE

  林 博之; Pawankumar Kulkarni; Himanshu Kapoor

  International taxation = 国際税務, Oct. 2018

  
• 間接譲渡とインド税法 : 日系企業が留意すべき株式移転に伴う課税リスク

  林 博之; Pawankumar Kulkarni; Himanshu Kapoor

  International taxation = 国際税務, Sep. 2018

  
• インドにおける組織再編

  林 博之; Pawankumar Kulkarni; Himanshu Kapoor

  International taxation = 国際税務, Aug. 2018

  
• 架線振動による新幹線電車線設備への影響に関する考察 (交通・電気鉄道研究会・集電技術・鉄道一般)

  花木 尚広; 小原 拓也; 堂﨑 章良; 近藤 和文; 林 博之

  電気学会研究会資料. TER = The papers of Technical Meeting on "Transportation and Electric Railway", IEE Japan, May 2018

  
• 切替用補助トロリ線支持金具の開発 (交通・電気鉄道研究会・集電技術・鉄道一般)

  長谷川 恵太; 畑中 剛; 林 博之

  電気学会研究会資料. TER = The papers of Technical Meeting on "Transportation and Electric Railway", IEE Japan, May 2018

  
• 2018年度インド予算案(税制改正)

  林 博之; Pawankumar Kulkarni; Himanshu Kapoor

  International taxation = 国際税務, Apr. 2018

  
• 純銅鋳物の変形挙動に及ぼす凝固条件の影響

  後藤 育壮; 麻生 節夫; 大口 健一; 黒沢 憲吾; 鈴木 寛之; 林 博之; 塩野谷 純一

  日本金属学会誌, Jan. 2018

  
• Recommender system for discovery of inorganic compounds

  Hiroyuki Hayashi; Atsuto Seko; Isao Tanaka

  NPJ COMPUTATIONAL MATERIALS, Oct. 2022

  Access this paper :

  
• Coordination polymers as precursors of simple and complex oxides

  Hiroyuki Hayashi; Yuta Morimitsu; Ikko Tatsumi; Isao Tanaka

  INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY, Aug. 2022

  
• LO-mode phonon of KCl and NaCl at 300 K by inelastic x-ray scattering measurements and first principles calculations

  Atsushi Togo; Hiroyuki Hayashi; Terumasa Tadano; Satoshi Tsutsui; Isao Tanaka

  JOURNAL OF PHYSICS-CONDENSED MATTER, Sep. 2022

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• Synthesis-condition recommender system discovers novel inorganic oxides

  Hiroyuki Hayashi; Keita Kouzai; Yuta Morimitsu; Isao Tanaka

  JOURNAL OF THE AMERICAN CERAMIC SOCIETY, Feb. 2022

  
• Comparison of Epstein-Barr virus genotypes and clinicohistopathological features of nasopharyngeal carcinoma between Guilin, China and Fukuoka, Japan

  Yingqiong Zhou; Kazuki Nabeshima; Kaori Koga; Mikiko Aoki; Hiroyuki Hayashi; Makoto Hamasaki; Hiroshi Iwasaki

  ONCOLOGY REPORTS, Jun. 2008

  
• マテリアルズインフォマティクスによる新材料の開拓

  田中 功; 世古 敦人; 林 博之; 東後 篤史

  現代化学 = Chemistry today, May 2020, Peer-reviewed

  
• Recommender System of Successful Processing Conditions for New Compounds Based on a Parallel Experimental Data Set

  Hiroyuki Hayashi; Katsuyuki Hayashi; Keita Kouzai; Atsuto Seko; Isao Tanaka

  CHEMISTRY OF MATERIALS, Dec. 2019, Peer-reviewed

  
• Prediction of dielectric constants using a combination of first principles calculations and machine learning

  Yuji Umeda; Hiroyuki Hayashi; Hiroki Moriwake; Isao Tanaka

  JAPANESE JOURNAL OF APPLIED PHYSICS, Nov. 2019, Peer-reviewed

  
• Double thermoelectric power factor of a 2D electron system

  Yuqiao Zhang; Bin Feng; Hiroyuki Hayashi; Cheng-Ping Chang; Yu-Miin Sheu; Isao Tanaka; Yuichi Ikuhara; Hiromichi Ohta

  NATURE COMMUNICATIONS, Jun. 2018

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• Materials informatics for dielectric materials

  Yuji Umeda; Hiroyuki Hayashi; Hiroki Moriwake; Isao Tanaka

  JAPANESE JOURNAL OF APPLIED PHYSICS, Nov. 2018, Peer-reviewed

  
• Compositional descriptor-based recommender system for the materials discovery

  Atsuto Seko; Hiroyuki Hayashi; Isao Tanaka

  JOURNAL OF CHEMICAL PHYSICS, 28 Jun. 2018

  
• Matrix- and tensor-based recommender systems for the discovery of currently unknown inorganic compounds

  Atsuto Seko; Hiroyuki Hayashi; Hisashi Kashima; Isao Tanaka

  PHYSICAL REVIEW MATERIALS, Jan. 2018

  
• Comparison of approximations in density functional theory calculations: Energetics and structure of binary oxides

  Yoyo Hinuma; Hiroyuki Hayashi; Yu Kumagai; Isao Tanaka; Fumiyasu Oba

  PHYSICAL REVIEW B, Sep. 2017

  
• Thermoelectric phase diagram of the SrTiO3-SrNbO3 solid solution system

  Yuqiao Zhang; Bin Feng; Hiroyuki Hayashi; Tetsuya Tohei; Isao Tanaka; Yuichi Ikuhara; Hiromichi Ohta

  JOURNAL OF APPLIED PHYSICS, May 2017

  
• First-Principles Selection of Solute Elements for Er-Stabilized Bi2O3 Oxide-Ion Conductor with Improved Long-Term Stability at Moderate Temperatures

  Kazuki Shitara; Takafumi Moriasa; Akifumi Sumitani; Atsuto Seko; Hiroyuki Hayashi; Yukinori Koyama; Rong Huang; Donglin Han; Hiroki Moriwake; Isao Tanaka

  CHEMISTRY OF MATERIALS, Apr. 2017

  
• Representation of compounds for machine-learning prediction of physical properties

  Atsuto Seko; Hiroyuki Hayashi; Keita Nakayama; Akira Takahashi; Isao Tanaka

  PHYSICAL REVIEW B, Apr. 2017

  
• Discovery of a Novel Sn(II)-Based Oxide beta-SnMoO4 for Daylight-Driven Photocatalysis

  Hiroyuki Hayashi; Shota Katayama; Takahiro Komura; Yoyo Hinuma; Tomoyasu Yokoyama; Ko Mibu; Fumiyasu Oba; Isao Tanaka

  ADVANCED SCIENCE, Jan. 2017

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• Electronic Structure and Defect Chemistry of Tin(II) Complex Oxide SnNb2O6

  Shota Katayama; Hiroyuki Hayashi; Yu Kumagai; Fumiyasu Oba; Isao Tanaka

  JOURNAL OF PHYSICAL CHEMISTRY C, May 2016, Peer-reviewed

  
• Growth and characterization of indium-doped Zn3P2 bulk crystals

  Ryoji Katsube; Hiroyuki Hayashi; Akira Nagaoka; Kenji Yoshino; Yoshitaro Nose; Yasuharu Shirai

  JAPANESE JOURNAL OF APPLIED PHYSICS, Apr. 2016, Peer-reviewed

  
• Prediction of Low-Thermal-Conductivity Compounds with First-Principles Anharmonic Lattice-Dynamics Calculations and Bayesian Optimization

  Atsuto Seko; Atsushi Togo; Hiroyuki Hayashi; Koji Tsuda; Laurent Chaput; Isao Tanaka

  PHYSICAL REVIEW LETTERS, Nov. 2015, Peer-reviewed

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• Selective fabrication of n- and p-type SnO films without doping

  Hiroyuki Hayashi; Shota Katayama; Rong Huang; Kosuke Kurushima; Isao Tanaka

  PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, Mar. 2015

  
• Epitaxial growth of tin(II) niobate with a pyrochlore structure

  Shota Katayama; Yusuke Ogawa; Hiroyuki Hayashi; Fumiyasu Oba; Isao Tanaka

  JOURNAL OF CRYSTAL GROWTH, Apr. 2015, Peer-reviewed

  
• Atomic Structure of Luminescent Centers in High-Efficiency Ce-doped w-AlN Single Crystal

  Ryo Ishikawa; Andrew R. Lupini; Fumiyasu Oba; Scott D. Findlay; Naoya Shibata; Takashi Taniguchi; Kenji Watanabe; Hiroyuki Hayashi; Toshifumi Sakai; Isao Tanaka; Yuichi Ikuhara; Stephen J. Pennycook

  SCIENTIFIC REPORTS, Jan. 2014, Peer-reviewed

  
• Theoretical Photovoltaic Conversion Efficiencies of ZnSnP2, CdSnP2, and Zn1-xCdxSnP2 Alloys

  Tomoyasu Yokoyama; Fumiyasu Oba; Atsuto Seko; Hiroyuki Hayashi; Yoshitaro Nose; Isao Tanaka

  APPLIED PHYSICS EXPRESS, Jun. 2013, Peer-reviewed

  
• Site preference of cation vacancies in Mn-doped Ga2O3 with defective spinel structure

  Hiroyuki Hayashi; Rong Huang; Fumiyasu Oba; Tsukasa Hirayama; Isao Tanaka

  APPLIED PHYSICS LETTERS, Dec. 2012, Peer-reviewed

  
• Crystal and Electronic Structure and Magnetic Properties of Divalent Europium Perovskite Oxides EuMO3 (M = Ti, Zr, and Hf): Experimental and First-Principles Approaches

  Hirofumi Akamatsu; Koji Fujita; Hiroyuki Hayashi; Takahiro Kawamoto; Yu Kumagai; Yanhua Zong; Koji Iwata; Fumiyasu Oba; Isao Tanaka; Katsuhisa Tanaka

  INORGANIC CHEMISTRY, Apr. 2012, Peer-reviewed

  
• Epitaxial growth of Mn-doped gamma-Ga2O3 on spinel substrate

  Hiroyuki Hayashi; Rong Huang; Fumiyasu Oba; Tsukasa Hirayama; Isao Tanaka

  JOURNAL OF MATERIALS RESEARCH, Feb. 2011, Peer-reviewed

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• Epitaxial Growth and Characterization of Rocksalt ZnO Thin Films with Low-Level NiO Alloying

  Shota Katayama; Hiroyuki Hayashi; Fumiyasu Oba; Isao Tanaka

  JAPANESE JOURNAL OF APPLIED PHYSICS, Jul. 2011, Peer-reviewed

  
• Atomistic structure and energetics of interface between Mn-doped gamma-Ga2O3 and MgAl2O4

  Hiroyuki Hayashi; Rong Huang; Fumiyasu Oba; Tsukasa Hirayama; Isao Tanaka

  JOURNAL OF MATERIALS SCIENCE, Jun. 2011, Peer-reviewed

  
• Structures and energetics of Ga2O3 polymorphs

  Yoshioka S; Hayashi H; Kuwabara A; Oba F; Matsunaga K; Tanaka I

  Journal of Physics-Condensed Matter, 2007, Peer-reviewed

  
• Microstructure of Mn-doped gamma-Ga2O3 epitaxial film on sapphire (0001) with room temperature ferromagnetism

  Huang Rong; Hayashi Hiroyuki; Oba Fumiyasu; Tanaka Isao

  Journal of Applied Physics, 2007, Peer-reviewed

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• Awaking of ferromagnetism in GaMnN through control of Mn valence

  Sonoda S; Tanaka I; Oba F; Ikeno H; Hayashi H; Yamamoto T; Yuba Y; Akasaka Y; Yoshida K; Aoki M; Asari M; Araki T; Nanishi Y; Kindo K; Hori H

  Applied Physics Letters, 2007, Peer-reviewed

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• Room temperature ferromagnetism in Mn-doped gamma-Ga2O3 with spinel structure

  Hiroyuki Hayashi; Rong Huang; Hidekazu Ikeno; Fumiyasu Oba; Satoru Yoshioka; Isao Tanaka; Saki Sonoda

  APPLIED PHYSICS LETTERS, Oct. 2006, Peer-reviewed

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Misc.

• 第一原理計算による高安定性イオン伝導体の材料設計

  設楽一希; 森分博紀; 森朝崇文; 炭谷晃史; 世古敦人; 林博之; HAN Donglin; 田中功; 小山幸典; HUANG Rong

  JFCC研究成果集, 2017

  
• 物質探索における合成実験と計算材料学の連携

  林博之

  マテリアルズインフォマティクスのためのデータ作成とその解析、応用事例, 30 Jul. 2021, Invited, Lead author, Last author, Corresponding author

  
• 21pTD-7 Local environment of magnetic ions in diluted magnetic semiconductors by transition metal L_<2,3>-edge XANES

  Ikeno H.; Hayashi H.; Yamamoto T.; Sonoda S.; Oba F.; Tanaka I.

  Meeting abstracts of the Physical Society of Japan, 21 Aug. 2007

  
• Searching for New Dielectric Materials by Combination of First Principles Calculations and Machine Learning

  梅田 裕二; 林 博之; 森分 博紀; 田中 功

  Ceramics Japan = セラミックス : bulletin of the Ceramic Society of Japan, Jul. 2019

  

Presentations

• Atomic and electronic structure of Mn-doped Ga2O3 thin films and interfaces with MgAl2O4 substrates

  Hiroyuki Hayashi

  Collaborative Conference on Crystal Growth, 13 Jun. 2013, Invited

  

External funds: Kakenhi

• Efficient exploration method for novel oxides using robot-assisted collaborative synthesis experiments and synthesis condition recommender system

  Grant-in-Aid for Scientific Research (B)

  Basic Section 26010:Metallic material properties-related

  Kyoto University

  Hiroyuki HAYASHI

  From 01 Apr. 2020, To 31 Mar. 2023, Project Closed

  無機化合物探索;酸化物合成;合成条件推薦システム;並列合成実験;新規物質探索;酸化物;ロボット協働合成実験;機械学習;自律運転ロボット;合成プロセスの機械学習;推薦システム

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-20H02423/
• Efficient exploration of unknown oxides using crystal-structure database and first-principles calculations

  Grant-in-Aid for Challenging Research (Exploratory)

  Medium-sized Section 26:Materials engineering and related fields

  Kyoto University

  Hiroyuki Hayashi

  From 28 Jun. 2019, To 31 Mar. 2021, Project Closed

  新規物質探索;第一原理計算;結晶構造データベース;形成エネルギー;凸包線;酸化物;不純物元素

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-19K22057/
• Development of a computational approach for accurate prediction of material properties and its application to the search for novel photovoltaic materials

  Grant-in-Aid for Scientific Research (B)

  Tokyo Institute of Technology

  Fumiyasu Oba

  From 01 Apr. 2015, To 31 Mar. 2017, Project Closed

  第一原理計算;太陽電池;半導体;格子欠陥;太陽電池材料

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-15H04125/
• Discover of novel lone pair oxide semiconductors

  Grant-in-Aid for Young Scientists (B)

  Kyoto University

  Hiroyuki Hayashi

  From 01 Apr. 2014, To 31 Mar. 2016, Project Closed

  二価スズ酸化物;パルスレーザー堆積法;第一原理計算;電子状態;パルスレーザー堆積;ドーパント;ローンペア;酸化物半導体

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-26820283/
• Exploration of nanostructure-property relationships

  Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

  Science and Engineering

  Kyoto University

  Isao Tanaka

  From 28 Jun. 2013, To 31 Mar. 2018, Project Closed

  ナノ構造情報;第一原理計算;データマイニング

  https://kaken.nii.ac.jp/grant/KAKENHI-PLANNED-25106005/
• Recommender System for Multinary Compounds Materials using Multi-Database Learning

  Grant-in-Aid for Scientific Research (B)

  Basic Section 26010:Metallic material properties-related

  Kyoto University

  林 博之

  From 01 Apr. 2023, To 31 Mar. 2026, Granted

  新規物質探索;機械学習;自律運転ロボット

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23H01670/
• Simultaneous Prediction of the Thermodynamic Stability and Synthesis Conditions of Inorganic Compounds

  Grant-in-Aid for Challenging Research (Exploratory)

  Medium-sized Section 26:Materials engineering and related fields

  Kyoto University

  林 博之

  From 30 Jun. 2023, To 31 Mar. 2025, Granted

  新規物質探索;機械学習;第一原理計算;合成実験

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K17836/
• Recommender System for Multinary Compounds Materials using Multi-Database Learning

  Grant-in-Aid for Scientific Research (B)

  Basic Section 26010:Metallic material properties-related

  Kyoto University

  林 博之

  From 01 Apr. 2023, To 31 Mar. 2026, Granted

  新規物質探索;機械学習;自律運転ロボット;合成実験;酸化物;ロボット協働合成実験;合成条件推薦システム

  https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23K26364/

Education

Teaching subject(s)

• From Apr. 2018, To Mar. 2019

  Practice of Basic Informatics (Faculty of Engineering)

  Spring, 全学共通科目
• From Apr. 2020, To Mar. 2021

  Practice of Basic Informatics (Faculty of Engineering) [Engineering Science]

  Spring, 全学共通科目