2012 - 2015 Introduction Effect of Superconducting Power Cable with Fault Current Limiting and Recovery Function in Electric Power System
2012 - 2014 Optimum Power Flow Control Based on Power Apparatus Diagnosis by Intelligent Grid Management System (IGMS)
2009 - 2012 Rational Electrical Insulation Design and Testing Techniques of High Temperature Superconducting Cables
2010 - 2011 超電導限流ケーブルの開発に関する基礎研究
2011 - 真空中の絶縁物沿面における放電の発生・進展に関する研究
2010 - 2011 超電導ケーブルと超電導限流器の複合多機能化に関する基礎研究
2010 - 2011 UHF技術と分光技術の融合による電力機器の次世代高精度診断技術開発
2010 - Automatic Optimization of Floating Electrode Configuration in Vacuum Interrupter
2009 - 2010 絶縁ガス中部分放電電流波形の解析による部分放電進展メカニズムの解明
2004 - 2009 Feasibility Study on Introduction Effects of Superconducting Fault Current Limiting Transformer (SFCLT) into Electric Power System
2006 - 2008 Highly Reliable Insulation Techniques for HTS Cable under Dynamic and Composite Stress Environment
2007 - 2007 Partial Discharge Mechanism by Spectrum Measurement under Impulse Voltage Condition in SF6 Gas
2000 - 2003 外部ヘリカル磁場によるトカマク運転の高性能化
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Papers (113)：
R. Konagi, H. Kojima, S. Iitsuka, M. Kobayashi, N. Hayakawa. Improvement of AC Conditioning Effect in Vacuum by High Frequency Voltage. IEEJ Transactions on Electrical and Electronic Engineering. 2024. 19. 11. 1781-1787
Y. Nagaki, K. Hayashi, H. Kojima, M. Yoshida, N. Hayakawa. Partial Discharge Progress and Breakdown Characteristics of Oil-impregnated Paper Insulation System for Capacitor Voltage Transformers. IEEE Transactions on Dielectrics and Electrical Insulation. 2024
R. Konagi, H. Kojima, S. Iitsuka, M. Kobayashi, N. Hayakawa. Effective High Frequency AC Conditioning in Vacuum. IEEE Transactions on Dielectrics and Electrical Insulation. 2024
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
H. Kojima. Expansion of Technological Exchange and Future Prospects in Fields of Electrical Discharge, Plasma and Pulsed Power Technologies. IEEJ Transactions on Fundamentals and Materials. 2025. 145. 1. 10-11
T. Ohta, H. Tanaka, H. Kojima, G. Uchida, Y. Tanaka, D. Ogawa, O. Nakatsuka, S. Naritsuka, H. Sato, K. Takeda, et al. Advanced Plasma Science and its Applications for Nitrides and Nanomaterials 2024 (ISPlasma2024/IC-PLANTS2024/APSPT-13). Japanese Journal of Applied Physics. 2024. 63. 11. 110001
Y. Tanaka, E. Kaneko, A. Kumada, H. Kojima, Y. Inada, Y. Yamano. Guest Editorial: Special Issue on Electrical Discharges in Vacuum. IEEE Transactions on Plasma Science. 2024. 52. 9. 4362-4364
H. Urao, Z. Liu, T. Osawa, A. Okino, H. Kojima. Atmospheric Plasma Jet for Electrical-insulation Resin Surface Treatment. Industrial Technology. 2024. 46. 52-53
Electrode Material Dependence of Dielectric Strength Improvement in High Frequency AC Conditioning in Vacuum
(7th International Conference on Electric Power Equipment - Switching Technology 2024)
Partial Discharge Progress and Breakdown in Oil-impregnated Paper Insulation System of Capacitor Voltage Transformers
(10th International Conference on Condition Monitoring and Diagnosis 2024)
Partial Discharge Characteristics of Aluminum Foil/Oil-impregnated Paper Composite Insulation System with Misaligned Aluminum Foils
(10th International Conference on Condition Monitoring and Diagnosis 2024)
Concept of Condition Monitoring for Capacitor Voltage Transformers
(10th International Conference on Condition Monitoring and Diagnosis 2024)
2024/09 - 電気学会基礎・材料・共通部門 電気学会基礎・材料・共通部門特別賞活動功労賞 国際会議ISDEIV2023(30th International Symposium on Discharge and Electrical Insulation in Vacuum)の成功および部門運営への貢献
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
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
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
