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J-GLOBAL ID:200901057936109365   Update date: Mar. 25, 2024

Kojima Hiroki

コジマ ヒロキ | Kojima Hiroki
Affiliation and department:
Job title: Associate professor
Homepage URL  (1): http://www.hayakawalab.nuee.nagoya-u.ac.jp/
Research field  (1): Electrical power engineering
Research keywords  (4): Breakdown ,  Discharge ,  Electrical insulation ,  High voltage
Research theme for competitive and other funds  (30):
  • 2022 - 2025 大気圧温度制御プラズマ処理による樹脂製高電圧絶縁材料の特性改善に関する研究
  • 2023 - 2024 電動航空機推進用高出力モータ及びコントローラの開発
  • 2022 - 2023 電動航空機推進用高出力モータ及びコントローラの開発
  • 2017 - 2022 電力機器用革新的機能性絶縁材料の技術開発/FGM設計技術の開発
  • 2017 - 2022 電力機器用革新的機能性絶縁材料の技術開発/FGM配合技術の開発
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Papers (110):
  • N. Kita, H. Kojima, N. Hayakawa, H. Fukuda, K. Yamamura, K. Nagatake. Breakdown Charge Dependence of Counter Electrode Material Adhesion and Dielectric Strength after Spark Conditioning in Vacuum. IEEE Transactions on Dielectrics and Electrical Insulation. 2023. 30. 6. 2592-2598
  • Y. Nagaki, K. Hayashi, H. Kojima, M. Yoshida, A. Otani, N. Hayakawa. Expected Lifetime Evaluation Method and Partial Discharge Progress Characteristics in Capacitor Voltage Transformer. IEEJ Transactions on Power and Energy. 2023. 143. 10. 559-566
  • Rachmawati, H. Kojima, K. Kato, N. Zebouchi, N. Hayakawa. Electric Field Grading and Discharge Inception Voltage Improvement on HVDC GIS/GIL Spacer with Permittivity and Conductivity Graded Materials (ε/σ-FGM). IEEE Transactions on Dielectrics and Electrical Insulation. 2022. 29. 5. 1811-1817
  • N. Kita, F. Kondo, H. Kojima, N. Hayakawa, H. Fukuda, K. Yamamura. Melting and Generation of Micro-Protrusions on Cathode Surface during Spark Conditioning Process in Vacuum. IEEE Transactions on Dielectrics and Electrical Insulation. 2022. 29. 3. 1160-1166
  • N. Hayakawa, Y. Mori, H. Kojima. Volume Effect of Dynamic Breakdown Strength in Liquid Nitrogen under Transient Bubble Disturbance for Resistive Superconducting Fault Current Limiters. IEEE Transactions on Dielectrics and Electrical Insulation. 2022. 29. 1. 264-269
more...
MISC (22):
  • 小島寛樹. 国際会議報告 第23回高電圧工学国際会議 II.個別セッション 傾斜材料・ナノコンポジット. 放電研究. 2024. 67. 1. 11-12
  • H. Kojima. Recent Topics on Electrical Discharges, Plasma, and Pulsed Power Technologies. IEEJ Transactions on Fundamentals and Materials. 2024. 144. 1. 10-11
  • H. Kojima, T. Sasaki, K. Takahashi, Y. Inada, Y. Nakagawa, Y. Nakano. Outline of Technical Committees in IEEJ: Electrical Discharges, Plasma and Pulsed Power (EPP). Electrical Insulation News in Asia. 2023. 30. 4-5
  • 小島寛樹. 学界情報:8th International Conference on Condition Monitoring and Diagnosis (CMD2020) 報告. 電気学会論文誌B(電力・エネルギー部門誌). 2021. 141. 6. NL6_3-NL6_3
  • 早川直樹, 小島寛樹. 研究グループ 紹介:名古屋大学 大学院工学研究科 電気工学専攻 電力機器・エネルギー伝送工学研究グループ. 電気学会論文誌A(基礎・材料・共通部門誌). 2021. 141. 5. NL5_6-NL5_6
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Patents (5):
Books (11):
  • Insulation design survay of overhead transimission facilities
    Electric Technology Research Association 2023
  • Technical Trend of GIS (Gas Insulated Switchgear) for Environmental load reduction
    The Institute of Electrical Engineers of Japan 2023
  • Latest Standards and Future Technology Trends related to Gas Insulated Switchgear (GIS)
    The Institute of Electrical Engineers of Japan 2021
  • Recent Trend on Diversification of Functions and Properties of Transformer
    The Institute of Electrical Engineers of Japan 2020
  • Technical trend of applied IT and response to renewable energy as for gas-insulated switchgear
    The Institute of Electrical Engineers of Japan 2020
more...
Lectures and oral presentations  (763):
  • 電動推進航空機用モータ絶縁に適用する流動潤滑油の絶縁破壊特性
    (令和6年電気学会全国大会 2024)
  • 超電導限流器が導入された多端子直流送電システムの限流協調
    (令和6年電気学会全国大会 2024)
  • 交流電圧印加による真空中固体絶縁物上の正帯電形成過程
    (令和6年電気学会全国大会 2024)
  • アルミ箔/油浸紙複合絶縁系における部分放電による油浸紙損傷と絶縁破壊
    (令和6年電気学会全国大会 2024)
  • 直流GIS/GIL用σ-FGM絶縁スペーサの乾燥空気中におけるフラッシオーバ特性
    (令和6年電気学会全国大会 2024)
more...
Education (3):
  • 2000 - 2004 Nagoya University Graduate School of Engineering Department of Energy Engineering and Science
  • 1998 - 2000 Nagoya University Graduate School of Engineering Department of Energy Engineering and Science
  • 1994 - 1998 Nagoya University School of Engineering Department of Electrical Engineering
Professional career (1):
  • Dr. of Engineering (Nagoya University)
Work history (5):
  • 2014/04 - 現在 Nagoya University Graduate School of Engineering Associate professor
  • 2010/04 - 2014/03 Nagoya University EcoTopia Science Institute Endowed chair associate professor
  • 2007/04 - 2010/03 Nagoya University EcoTopia Science Institute Endowed chair assistant professor
  • 2005/04 - 2007/03 Nagoya University EcoTopia Science Institute Assistant
  • 2004/04 - 2005/03 Nagoya University EcoTopia Science Institute Assistant
Committee career (75):
  • 2021/04 - 現在 電気学会 論文委員会(A2グループ) 委員
  • 2018/04/01 - 現在 パワーアカデミー大学検討委員会 若手教員/研究者支援WG 主査
  • 2014/01/20 - 現在 CIGRE SC C4 国内分科会 委員
  • 2023/04 - 2026/03 ISH2025 実行委員会 幹事
  • 2023/04 - 2025/10 ISH2025 実行委員会 委員
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Awards (6):
  • 2023/05 - The Institute of Electrical Engineers of Japan IEEJ Distinguished Paper Award Partial Discharge Inception Voltage under Inverter Surge Voltage Considering Interactive Effects of Environmental Factors
  • 2020/10 - 8th International Conference on Condition Monitoring and Diagnosis Best Paper Award CMD 2020 Diagnosis of Discharge Pattern in Vacuum Interrupter by Shield Potential Measurement
  • 2019/03 - パワーアカデミー パワーアカデミー萌芽研究優秀賞 ガス絶縁開閉装置の絶縁診断高度化に向けた部分放電の電磁波放射メカニズムの解明
  • 2018/05 - The Institute of Electrical Engineers of Japan IEEJ Distinguished Paper Award Improvement Mechanism of AC Breakdown Voltage of Insulating Oil with Dispersed Nanoparticles
  • 2012/05 - The Institute of Electrical Engineers of Japan IEEJ Distinguished Paper Award Mechanism of Small Current Generation under Impulse Voltage Applications in Vacuum
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Association Membership(s) (6):
Institute of Electrical and Electronics Engineers ,  Cryogenics and Superconductivity Society of Japan ,  Institute of Engineers on Electrical Discharge in Japan ,  Physical Society of Japan ,  Japan Society of Plasma Science and Nuclear Fusion Research ,  Institute of Electrical Engineers of Japan
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