OHYA MASAYOSHI

Profile Information

Affiliation: Associate Professor, School of Engineering Program of Electrical and Electronic Engineering, Kwansei Gakuin University

Degree: Bachelor (Engineering)(Mar, 2001, Kyoto University)
Master (Energy Science)(Mar, 2003, Kyoto University)
Doctor (Energy Science)(Mar, 2006, Kyoto University)

Researcher number: 20732308
J-GLOBAL ID: 202201007402194010
researchmap Member ID: R000032282

With the future hydrogen society in mind, we are working on the development of superconducting devices that utilize the cold heat of liquid hydrogen to save energy. By linking superconducting system networks, such as superconducting generators and superconducting cables, with green liquid hydrogen derived from renewable energy, we aim to create a sustainable decarbonized society.

Research Interests

Research Areas

Research History

Apr, 2021 - Present

Associate Professor, School of Engineering Program of Electrical and Electronic Engineering, Kwansei Gakuin University
May, 2016 - Mar, 2021

Mitsubishi Electronic Corporation
Apr, 2006 - May, 2016

Sumitomo Electric Industries, Ltd.

Education

Apr, 2003 - Mar, 2006

Energy Science and Technology Dept., Graduate School of Energy Science, Kyoto University
Apr, 2001 - Mar, 2003

Energy Science and Technology Dept., Graduate School of Energy Science, Kyoto University
Apr, 1996 - Mar, 2001

School of Electrical and Electronic Engineering, Faculty of Engineering, Kyoto University

Committee Memberships

Jun, 2024 - Present

庶務委員会委員, 低温工学・超電導学会
Jun, 2024 - Present

基盤強化委員会委員, 低温工学・超電導学会
Jun, 2018 - May, 2024

基盤強化委員会委員長, 低温工学・超電導学会
Jun, 2018 - May, 2024

運営委員会委員, 低温工学・超電導学会
2019 - Mar, 2024

磁気力を活用した新たな環境技術のフィージビリティと超電導の役割調査専門委員会委員, 電気学会
2016 - 2020

関西支部会計幹事, 低温工学・超電導学会
2015 - 2017

基盤強化WG 委員, 低温工学・超電導学会
2014 - 2017

若手の会委員, 低温工学・超電導学会

Awards

Sep, 2024

論文査読貢献賞, 電気学会電力・エネルギー部門
2015

Runner up of the SNF Best Contributed Preprint Contest, IEEE CSC

大屋正義
2014

第18回超電導科学技術賞, 超電導科学技術研究会

鬼頭豊他
2013

技術褒賞, 電気材料技術懇談会

大屋正義
2011

奨励賞, 低温工学・超電導学会

大屋正義
2010

若手研究者優秀奨励賞, 電気学会超電導応用電力機器技術委員会

大屋正義
2010

技術褒賞, 電気材料技術懇談会

大屋正義
2010

優秀論文発表賞, 電気学会

大屋正義
2010

優良発表賞, 低温工学協会

大屋正義
2004

優秀論文発表賞, 電気学会

大屋正義
2004

優良発表賞, 低温工学協会

大屋正義

Papers

Thermal Runaway of a REBCO Coil Co-Wound With a Copper Tape Immersed in Liquid Nitrogen/Hydrogen

S. Imagawa, M. Ohya, Y. Shirai, A. Iwamoto, S. Hamaguchi, H. Kobayashi

IEEE Transactions on Applied Superconductivity, 35(5) 4601605, Jan 14, 2025 Peer-reviewed
Acceptance Tests of REBCO Wires for Field Coil of 10 kW High-Temperature Superconducting Generator Cooled by Liquid Hydrogen

M. Ohya, K. Obata, A. Ogasahara

IEEE Transactions on Applied Superconductivity, 35(5) 5200305, Nov 15, 2024 Peer-reviewedLead author
Energization test apparatus of HTS coils cooled by liquid hydrogen and manufacture of split-type REBCO external field coil

M. Ohya, S. Imagawa, Y. Shirai, H. Kobayashi

2776 1-8, Jun 13, 2024 Peer-reviewedLead authorCorresponding author
Mechanical Simulation and Energizing Tests of HTS Coils for 10 kW Generator Cooled by Liquid Hydrogen

M. Ohya, S. Tonooka, H. Miura, K. Obata, Y. Terao, Y. Shirai, H. Kobayashi, H. Taguchi, K. Okai

34(3), Jan 16, 2024 Peer-reviewedInvitedLead authorCorresponding author
Numerical Analysis of Transient Transverse Hall Current in LHD Conductor

M. Ohya

34(3), Jan 8, 2024 Lead authorCorresponding author
Stiffness and loss characteristics of superconducting magnetic bearings using layered HTS tapes and a permanent magnet

Terao Yutaka, Fuchino Shuichiro, Ohya Masayoshi

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 614, Nov 15, 2023 Peer-reviewed
Preliminary Excitation Test of REBCO External Magnetic Field Coil in Liquid Nitrogen

Masayoshi Ohya, Shohri Ikuta, Shoichiro Murata, Yugo Yamakawa, Shinsaku Imagawa, Akifumi Iwamoto, Yasuyuki Shirai

Proceedings of the 28th International Cryogenic Engineering Conference and International Cryogenic Materials Conference 2022, 1126-1132, Oct 6, 2023 Peer-reviewedLead author
Electromagnetic Characteristics of Stacked Superconductors and Permanent Magnets Applying for Magnetic Bearings

TERAO Yutaka, FUCHINO Shuichiro, OHYA Masayoshi

TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan), 58(5) 245-251, Sep 20, 2023
Current Flow Simulation of Assembled Conductors for Field Coils of Liquid Hydrogen-Cooled High-Temperature Superconducting Generator

M. Ohya, S. Ikuta, H. Miura, K. Obata, S. Tonooka

33(5), Mar 30, 2023 Peer-reviewedLead authorCorresponding author
Overcurrent Test of High-Temperature Superconducting Coils With Liquid Hydrogen Immersion Cooling

Oya H., Shirai Y., Kawasaki R., Matsumoto F., Maeda Y., Matsumoto G., Shiotsu M., Imagawa S., Iwamoto A., Hamaguchi S. …

IEEE Transactions on Applied Superconductivity, 33(5) 4702505, Mar 29, 2023 Peer-reviewed
Spiral Bending Tests of Various REBCO Wires for Development of High-Temperature Superconducting Assembled Conductors

S. Ikuta, K. Nakanishi, R. Nishiyama, M. Ohya

33(5) 4802104, Mar 15, 2023 Peer-reviewedLast authorCorresponding author
Numerical analysis of delamination degradation of epoxy-impregnated superconducting coils wound with REBCO tapes caused by thermal stress

M. Ohya

IOP Conference Series: Materials Science and Engineering, 1240 012243, Jul 14, 2022 Peer-reviewedLead author
doi: 10.1088/1757-899X/1240/1/012143

M. Ohya

IOP Conference Series: Materials Science and Engineering, 1240 012243, Jul 14, 2022 Peer-reviewedLead author
Numerical Analysis on Transient Stability of Large Helical Device Conductor

M. Ohya

IEEE Transactions on Applied Superconductivity, 32(6) 4701004, Mar 16, 2022 Peer-reviewedLead author
Numerical Simulation of One-Sided Normal Zone Propagation in Large Helical Device Conductors

M. Ohya

IEEE Transactions on Applied Superconductivity, 32(4) 4200305, Jan 20, 2022 Peer-reviewedLead author
Design and Manufacture of Half-Size 3-T High-Temperature Superconducting Magnet for MRI

M. Oya, T. Matsuda, T. Inoue, T. Morita, R. Eguchi, S. Otake, T. Nagahiro, H. Tanabe, S. Yokoyama, A. Daikoku

IEEE Transactions on Applied Superconductivity, 28 4401205, 2018 Peer-reviewedLead author
Temperature and Pressure Simulation of a 1.5-km HTS Power Cable Cooled by Subcooled LN2 With a Fault Current

T. Yasui, Y. Sato, K. Agatsuma, A. Ishiyama, Z. Wang, M. Ohya, T. Masuda, S. Honjo

IEEE Transactions on Applied Superconductivity, 26(3) 5402005, 2016 Peer-reviewed
Magnetic Field Direction Dependence of AC Losses in Bi2223/Ag Tape

J. Ogawa, S Fukui, T. Oka, N. Shidara, R. Iwashita, M. Ohya

IEEE Transactions on Applied Superconductivity, 26 8200204, 2016 Peer-reviewed
New HTS Cable Project in Japan: Basic Study on Ground Fault Characteristics of 66-kV Class Cables

M. Ohya, T. Masuda, T. Nakano, O. Maruyama, T. Mimura, S. Honjo

IEEE Transactions on Applied Superconductivity, 26 5401104, 2016 Peer-reviewedLead author
Critical Current Measurement in Three-in-One High-Temperature Superconducting Cables

M. Ohya, T. Masuda, T. Nakano, O. Maruyama, T. Mimura, S. Honjo

IEEE Transactions on Applied Superconductivity, 26 5401804, 2016 Peer-reviewedLead author

Misc.

超電導ケーブル開発の現状

大屋正義, 増田孝人

電気評論, Mar, 2016 Peer-reviewedInvitedLead author
超電導ケーブルの現状と展望

廣瀬正幸, 大屋正義

OHM, Oct, 2013 Peer-reviewedInvited
Japan's First Live Power Transmission Using 3-in-One Superconducting Cable (High-Temperature Superconducting Cable Demonstration Project)

(182) 39-47, Jan, 2013 Peer-reviewedInvited
Electric wire & cable, energy: The Japan's first in-grid demonstration of superconducting cable (high-temperature superconducting cable demonstration project)

SEI technical review, (176) 102-110, Jan, 2010 Peer-reviewedInvited
Electric wire & cable, energy: In-grid demonstration of long-length "3-in-One" HTS cable (Albany project)

SEI technical review, (174) 95-104, Jan, 2009 Peer-reviewedInvited

Books and Other Publications

Research, Fabrication and Applications of Bi-2223 HTS Wires

佐藤謙一 (Role: Joint author, 3.12 Economical aspects of superconducting cable submit)

World Scientific Publishers, Jan, 2016 (ISBN: 9789814749251)
これ一冊でわかる超伝導実用技術

一般社団法人未踏科学技術協会, 超伝導科学技術研究会 (Role: Joint author, 最新の送電ケーブル試験（旭変電所）)

日刊工業新聞社, Feb, 2013 (ISBN: 9784526070143)

Presentations

278

高温超電導コイル軸方向圧縮時の可逆的なIc低下に関する考察

倉田泰成, 石田悠人, 大屋正義

2024年度電気学会関西支部若手研究発表会, Dec 22, 2024, 電気学会関西支部
液体水素冷却超電導発電機の開発と液体水素試験拠点の構築

大屋正義

令和6年度産学官交流ミーティング, Dec 18, 2024, 公益財団法人新産業創造研究機構 Invited
液体水素冷却超電導発電機の開発と液体水素試験拠点の構築

大屋正義

カーボンニュートラル研究成果事業化促進フォーラム, Dec 9, 2024, 関西広域連合 Invited
Comparison of φ140 mm Superconducting Magnetic Bearings Using Different Magnetization Direction Ring Magnets and Ring Shape Layered REBCO Tapes

Y. Terao, S. Fuchino, M. Ohya

37th International Symposium on Superconductivity, Dec 3, 2024 Invited
New inductive energization test methos of high-temperature superconducting assembled conductors by exciting the primary coil with alternating current

K. Nakanishi, K. Shimada, T. Obuchi, M. Ohya, S. Imagawa

37th International Symposium on Superconductivity, Dec 3, 2024 Invited
Investigation of reversible critical current degradation of high-temperature superconducting coils under compressive stress

Y. Ishida, T. Kurata, M. Ohya

37th International Symposium on Superconductivity, Dec 3, 2024 Invited
Design and assembly of 10 kW high-temperature superconducting generation demonstrator cooled by liquid hydrogen

M. Ohya, A. Ogasahara, K. Obata, Y. Terao, Y. Shirai, H. Kobayashi, K. Okai, O. Sakamoto

37th International Symposium on Superconductivity, Dec 3, 2024 Invited
高温超電導集合導体の低周波交流誘導通電試験に関する基礎検討

大屋正義, 中西啓太, 嶋田健, 大淵匠真, 今川信作

第108回2024年度秋季低温工学・超電導学会, Nov 27, 2024, 低温工学・超電導学会
磁化方向の異なるリング状永久磁石と積層超電導リングを用いた超電導磁気軸受の電磁力特性に関する考察

寺尾悠, 淵野修一郎, 大屋正義

第108回2024年度秋季低温工学・超電導学会, Nov 27, 2024, 低温工学・超電導学会
液化水素冷熱を利用した液化ネオン製造の構想

松永信之介, 大屋正義, 柳長門

第108回2024年度秋季低温工学・超電導学会, Nov 26, 2024, 低温工学・超電導学会
超電導技術を用いてカーボンニュートラルに貢献

大屋正義

2024年度オーブンセミナー, Nov 2, 2024, 関西学院大学
超電導技術を用いてカーボンニュートラルに貢献！

大屋正義

関西学院大学オープンセミナー, Nov 2, 2024, 関西学院大学 Invited
Development of a Rotor Cooling System of Superconducting Generator Using Liquid Hydrogen

Y. Shirai, M. Ohya

4th IWC-HTS International Workshop on Cooling Systems for HTS Applications, Oct 25, 2024 Invited
Thermal runaway of a REBCO coil co-wound with a copper tape immersed in liquid nitrogen/hydrogen

S. Imagawa, M. Ohya, Y. Shirai, A. Iwamoto, S. Hamaguchi, H. Kobayashi

The Applied Superconductivity Conference (ASC 2024), Sep 6, 2024
Demonstration of 10 kW high-temperature superconducting generator cooled by liquid hydrogen

M. Ohya, K. Obata, A. Ogasahara, S. Tonooka, Y. Terao, Y. Shirai, H. Kobayashi, K. Okai, O. Sakamoto

The Applied Superconductivity Conference (ASC 2024), Sep 6, 2024
Magnetic Bearing Using a φ140 mm Ring Shape Layered Superconducting Tapes and a Ring Permanent Magnet for Rotating Machines

Y. Terao, S. Fuchino, M. Ohya

The Applied Superconductivity Conference (ASC 2024), Sep 3, 2024
リング状積層超電導体と永久磁石を用いた超電導磁気軸受に関する基礎検討

寺尾悠, 淵野修一郎, 大屋正義

第36回電磁力関連のダイナミクス」シンポジウム（SEAD36）, Jun 25, 2024, 電気学会
高温超電導コイル圧縮時の可逆的臨界電流特性低下原因の究明

大屋正義, 村田将一朗, 久保田優志, 三浦英明, 小畑慶人

第107回2024年度春季低温工学・超電導学会, May 24, 2024, 低温工学・超電導学会
液体水素冷却高温超電導発電デモ機の開発状況

大屋正義, 殿岡俊, 小笠原敦, 三浦英明, 小畑慶人, 寺尾悠, 白井康之, 小林弘明, 岡井敬一

第107回2024年度春季低温工学・超電導学会, May 24, 2024, 低温工学・超電導学会
液体水素冷却高温超電導発電機の開発 ―プロジェクト概要―

小笠原敦, 小畑慶人, 石見佳紀, 三浦英明, 殿岡俊, 大屋正義, 白井康之, 寺尾悠, 坂本織江, 岡井敬一, 田口秀之, 小林弘明

第107回2024年度春季低温工学・超電導学会, May 24, 2024, 低温工学・超電導学会

Teaching Experience

Professional Memberships

Research Projects

液体水素冷却高温超電導発電機の開発

先導研究プログラム／エネルギー・環境技術先導研究プログラム, 国立研究開発法人新エネルギー・産業技術総合開発機構, Jul, 2022 - Jun, 2024

大屋正義
液体水素の冷熱を活用した水素ガスタービン高温超電導発電機の基礎開発

官民による若手研究者発掘支援事業, 国立研究開発法人新エネルギー・産業技術総合開発機構, Mar, 2022 - Mar, 2024

大屋正義
次世代超電導マグネット向け高温超電導大電流集合導体の開発

JKA補助事業, 公益財団法人JKA, Apr, 2022 - Mar, 2023

大屋正義
Effect of surface oxidation on stability of LHD conductor immersed in pressurized He II

MT19若手研究者派遣助成, MT19国内準備委員会, Sep, 2005 - Sep, 2005
Dynamic one-side propagation phenomenon observed in LHD conductor: Numerical analysis of transverse Hall current

電気学会創立100周年記念の国際会議への出席助成, 電気学会, Jul, 2005 - Jul, 2005

Social Activities

市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 福岡市科学館, Jan 27, 2024 - Jan 27, 2024
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 福岡市科学館, Dec 10, 2022 - Dec 10, 2022
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 福岡市科学館, Nov, 2021 - Nov, 2021
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 沖縄コンベンションセンター, Jan, 2020 - Jan, 2020
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 日本科学未来館, Nov, 2019 - Nov, 2019
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 日本科学未来館, Feb, 2019 - Feb, 2019
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 霞城セントラル・山形県産業科学館, Nov, 2018 - Nov, 2018
愛知総合工科高等学校出前授業

Planner, Logistic support, Report author

低温工学・超電導学会基盤強化委員会, Sep, 2018 - Sep, 2018
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, あすたむらんど徳島子ども科学館, Nov, 2017 - Nov, 2017
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 富山市科学博物館, Nov, 2016 - Nov, 2016
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, バンドー神戸青少年科学館, Dec, 2015 - Dec, 2015
市民公開講座

Guest, Logistic support

低温工学・超電導学会教育・セミナー委員会, 福島市子どもの夢を育む施設こむこむ館, Nov, 2014 - Nov, 2014