Updated on 2026/08/19

 
HASEGAWA, Kazunori
 
Scopus Paper Info
Total Paper Count: 50 Total Citation Count: 735 h-index: 12

The bar and line graphs display up to the most recent 20 years.

Affiliation
Faculty of Engineering Department of Electrical and Electronic Engineering
Job
Associate Professor
External link

Research Interests

  • Power Electronics

Research Areas

  • Manufacturing Technology (Mechanical Engineering, Electrical and Electronic Engineering, Chemical Engineering) / Electrical power engineering

Undergraduate Education

  • 2007.03   Tokyo Metropolitan University   Faculty of Engineering   Graduated   Japan

Post Graduate Education

  • 2012.03   Tokyo Institute of Technology   Graduate School, Division of Science and Engineering   Doctoral Program   Completed   Japan

Degree

  • Tokyo Institute of Technology  -  Doctor of Engineering   2012.03

Biography in Kyutech

  • 2020.04
     

    Kyushu Institute of Technology   Faculty of Engineering   Department of Electrical and Electronic Engineering   Associate Professor  

  • 2018.04
    -
    2020.03
     

    Kyushu Institute of Technology   Graduate School of Life Science and Systems Engineering   Department of Biological Functions Engineering   Associate Professor  

  • 2014.04
    -
    2018.03
     

    Kyushu Institute of Technology   Graduate School of Life Science and Systems Engineering   Department of Biological Functions Engineering   Assistant Professor  

  • 2013.04
    -
    2014.03
     

    Kyushu Institute of Technology   Graduate School of Life Science and Systems Engineering   Department of Biological Functions and Engineering   Assistant Professor  

Biography before Kyutech

  • 2012.06 - 2013.03   Tokyo Institute of Technology   Specially Appointed Assistant Professor   Japan

  • 2012.04 - 2012.05   Tokyo Institute of Technology   Japan

  • 2010.04 - 2012.03   Tokyo Institute of Technology   JSPS Research Fellow   Japan

Academic Society Memberships

  • 2009.05   IEEE   United States

  • 2006.10   The Institute of Electrical Engineers of Japan   Japan

Papers

  • Lifetime enhancement with stress control for submodule capacitors of a modular multilevel converter Reviewed International journal

    Yasuda T., Hasegawa K., Itoh J.i.

    Power Electronic Devices and Components   15   2026.12

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.pedc.2026.100151

    Scopus

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  • Transition of Power Electronic Converters and Its Issues with Multilevel Inverters

    HASEGAWA Kazunori, OBARA Hidemine

    The Journal of The Institute of Electrical Engineers of Japan ( The Institute of Electrical Engineers of Japan )   146 ( 6 )   330 - 333   2026.06

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    DOI： 10.1541/ieejjournal.146.330

    CiNii Research

    Other Link： https://www.jstage.jst.go.jp/article/ieejjournal/146/6/146_330/_pdf

  • Impedance monitoring method of a DC-link capacitor in a V2X EV charger with three bidirectional converters Invited Reviewed International journal

    Nagano T., Hasegawa K., Yamate S., Tokii A.

    2026 International Power Electronics Conference IPEC Nagasaki 2026 Ecce Asia   2026.01

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.23919/IPEC-Nagasaki2026-EC64663.2026.11597378

    Scopus

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  • Installation and Evaluation of a Real-Time Condition Monitoring System for Propulsion Inverters in Commercial Rolling Stock Reviewed International journal

    Fujimoto K., Hasegawa K., Watanabe S.

    2026 International Power Electronics Conference IPEC Nagasaki 2026 Ecce Asia   2026.01

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.23919/IPEC-Nagasaki2026-EC64663.2026.11597426

    Scopus

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  • Analysis and Experimental Verification of Current Sharing among Parallel-Connected DC-Link Capacitors with Stray Inductances Reviewed International journal

    Hasegawa Kazunori, Nasu Sakurako

    IEEJ Journal of Industry Applications ( The Institute of Electrical Engineers of Japan )   15 ( 4 )   747 - 753   2026.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    <p>DC-link capacitors in power converters have a shorter lifetime than the other devices, which is an obstacle to improving reliability and downsizing of the converters. The lifetime of the capacitor depends on the amount of its ripple current because a larger amount of current results in greater increase in internal temperature. This paper presents a theoretical analysis and experimental verification of current sharing among parallel-connected DC-link capacitors with stray inductances. The analysis is obtained by the current transfer function of each capacitor, revealing that resonance caused by the capacitors and stray inductances drastically increases the root-mean-square (RMS) value of the capacitor current. This also implies that the sum of the RMS currents of all the capacitors becomes much larger than the capacitor current flowing out of a converter. The results of the analysis show that the capacitors closest to and farthest from the converter have larger currents than the middle capacitors, regardless of the number of capacitors connected in parallel. Chopper circuits rated at 450V and 20A with SiC MOSFETs were designed and constructed to test capacitors with a switching frequency of 10-200kHz, which confirmed the validity of the theoretical analysis.</p>

    DOI： 10.1541/ieejjia.20250544

    Scopus

    CiNii Research

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  • Condition monitoring of a DC-link capacitor in an inverter with a front-end diode rectifier under imbalanced three-phase supply voltage Reviewed International journal

    Yamasoto T., Hasegawa K.

    Microelectronics Reliability   173   2025.10

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2025.115873

    Kyutacar

    Scopus

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  • 九州・沖縄地区のパワエレ会議情報

    長谷川 一徳

    電気学会誌 ( 一般社団法人 電気学会 )   145 ( 6 )   333 - 333   2025.06

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    <p>はじめに</p><p>2024～2026年にかけて九州・沖縄地区においてパワーエレクトロニクス（パワエレ）関係の会議が多数開催されている。本稿では既開催および開催予定の会議情報を紹介する。</p>

    DOI： 10.1541/ieejjournal.145.333

    Kyutacar

    CiNii Research

    Other Link： https://www.jstage.jst.go.jp/article/ieejjournal/145/6/145_333/_pdf

  • Research Group Introduction: Power Electronics Laboratory, Dept. of Electrical and Electronic Engineering, Kyushu Institute of Technology

    IEEJ Transactions on Industry Applications ( The Institute of Electrical Engineers of Japan )   145 ( 6 )   NL6_8 - NL6_8   2025.06

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    <p>This article introduces Power Electronics Laboratory at Department of Electrical and Electronic Engineering, Kyushu Institute of Technology, which focuses on reliability-related issues of power electronic converters including power semiconductor devices and capacitors.</p>

    DOI： 10.1541/ieejias.145.nl6_8

    Kyutacar

    CiNii Research

    Other Link： https://kyutech.repo.nii.ac.jp/records/2001952

  • A Condition-Monitoring Method of a DC-Link Capacitor in a V2X Bidirectional EV Charger Reviewed International journal

    Nagano Tomoyuki, Hasegawa Kazunori, Yamate Shigeki, Tokii Atsushi

    IEEJ Journal of Industry Applications ( The Institute of Electrical Engineers of Japan )   14 ( 3 )   505 - 506   2025.05

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    Language：English   Publishing type：Research paper (scientific journal)

    <p>This letter presents a condition-monitoring method of a DC-link capacitor in a vehicle-to-everything (V2X) bidirectional electric vehicle (EV) charger. EVs have gained considerable attention because of portable energy sources, thereby resulting in the development of V2X bidirectional EV chargers. Surveys of reliability in power electronics indicare that 20-30% of converter failures are attributed to capacitors. The proposed method enables condition monitoring of DC-link capacitors for the charge or discharge output changes.</p>

    DOI： 10.1541/ieejjia.L24000916

    Kyutacar

    Scopus

    CiNii Research

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  • Lifetime Diagnosis Technologies of Power Electronic Converters

    HASEGAWA Kazunori

    The Journal of The Institute of Electrical Engineers of Japan ( The Institute of Electrical Engineers of Japan )   145 ( 2 )   94 - 97   2025.02

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    DOI： 10.1541/ieejjournal.145.94

    CiNii Research

    Other Link： https://www.jstage.jst.go.jp/article/ieejjournal/145/2/145_94/_pdf

  • 九州工業大学IoTネットワークイノベーション実証研究センターの活動

    長谷川 一徳

    電気学会誌 ( 一般社団法人 電気学会 )   145 ( 1 )   49 - 49   2025.01

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    <p>はじめに</p><p>Society 5.0の実現には，サイバー空間とフィジカル空間の融合による持続可能で強靭な社会への変革，新たな社会を設計し価値創造の源泉となる知の創出，そして新たな社会</p>

    DOI： 10.1541/ieejjournal.145.49

    CiNii Research

    Other Link： https://www.jstage.jst.go.jp/article/ieejjournal/145/1/145_49/_pdf

  • Condition Monitoring of a DC-Link Capacitor Using the Instantaneous Output Power of a Propulsion Inverter with One-Pulse Modulation Reviewed International journal

    Hasegawa Kazunori, Yamasoto Takuma, Fujimoto Kazuki, Oyama Yuji, Iida Norifumi

    IEEJ Journal of Industry Applications ( The Institute of Electrical Engineers of Japan )   advpub ( 0 )   368 - 374   2025.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    <p>Condition-based maintenance (CBM) is an effective approach for ensuring the safe operation of power electronic converters used in industrial applications, grid-tied ones, and transportation systems. This paper proposes a condition-monitoring method of a DC-link capacitor used in a propulsion inverter for a rolling stock, where capacitance is used as the indicator of its degradation. This method utilizes the instantaneous output power of the inverter to reproduce the ripple current of the dc-link capacitor, which allows current-sensor-less condition monitoring of the dc-link capacitor. In addition, the capacitor voltage is obtained from a sampled one synchronized to a multiple of the carrier frequency available in a practical propulsion inverter. A 200-V 1.5-kWlaboratory system with an induction motor is designed and constructed for emulating the propulsion inverter with synchronous pulse-width modulation in a region with constant output power. Experimental results confirmed that the capacitance of the dc-link capacitor was monitored from the sampled voltage and reproduced ripple current with the proposed method.</p>

    DOI： 10.1541/ieejjia.20250328

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  • Accurate ESR Monitoring of a DC-Link Capacitor with Switching Ripple Voltage by a Leafony Invited Reviewed International journal

    Yusaku Ogawa, Takuma Yamasoto, Kazunori Hasegawa

    International Conference on Renewable Energy Research and Applications (ICRERA)   1521 - 1525   2024.11

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    Authorship：Last author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    日本   長崎   2024.11.09  -  2024.11.13

    DOI： 10.1109/ICRERA62673.2024.10815310

    DOI： 10.1109/ICRERA62673.2024.10815310

    Kyutacar

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  • 日本初の浮体式洋上風力発電所を訪ねて

    長谷川 一徳

    電気学会誌 ( 一般社団法人 電気学会 )   144 ( 9 )   603 - 603   2024.09

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    Authorship：Lead author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    <p>2024年3月7日～8日に電気学会電力技術／電力系統技術／半導体電力変換合同研究会が長崎県五島市（福江島）にて開催された。本研究会は毎年3月にIEEE Power & En</p>

    DOI： 10.1541/ieejjournal.144.603

    CiNii Research

    Other Link： https://www.jstage.jst.go.jp/article/ieejjournal/144/9/144_603/_pdf

  • Power-cycling degradation monitoring of an IGBT module with V<inf>CE(sat)</inf> measurement in continuous operation of a chopper circuit Reviewed International journal

    Hasegawa K., Hara K., Shishido N., Nakano S., Saito W., Ninomiya T.

    Power Electronic Devices and Components   7   2024.04

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.pedc.2024.100061

    Kyutacar

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  • Observation of Thermal-Resistance Increase of Degraded IGBT Modules by VCE(sat) Measurement in a Chopper Circuit Reviewed International journal

    Hasegawa K., Ueda H., Hara K., Shishido N., Nakano S., Saito W., Ninomiya T.

    PCIM Europe Conference Proceedings   2024-June   2997 - 3001   2024.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.30420/566262426

    Scopus

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  • Current-Sensor-Less Condition Monitoring of a DC-Link Capacitor Based on Analysis of a Six-Pulse Diode Rectifier Having AC and DC inductors Reviewed International journal

    Hasegawa K., Hirose Y.

    IEEE Transactions on Industry Applications   60 ( 6 )   9043 - 9051   2024.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1109/TIA.2024.3443784

    Kyutacar

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  • Conference Report: IE (Intelligent Electronics) Competition in 2023 Power Electronics Annual Conference of KIPE July 4-6, 2023, Welli Hilli Park, Hoengseong, Republic of Korea

    IEEJ Transactions on Industry Applications ( The Institute of Electrical Engineers of Japan )   143 ( 12 )   NL12_16 - NL12_16   2023.12

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    Authorship：Lead author,　Last author,　Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    DOI： 10.1541/ieejias.143.nl12_16

    CiNii Research

    Other Link： https://www.jstage.jst.go.jp/article/ieejias/143/12/143_NL12_16/_pdf

  • Analysis and Measurement of the Surge and Gate-Noise Voltages in a 1.7-kV IGBT Module With the Effect of Reverse-Recovery Current Reviewed International journal

    Hasegawa K., Takagi K.

    IEEE Transactions on Power Electronics   38 ( 7 )   8051 - 8055   2023.07

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1109/TPEL.2023.3268673

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  • Online Cell Capacitance and ESR Monitoring Using Switching Frequency in a Modular Multilevel Converter Reviewed International journal

    Yasuda Takumi, Hasegawa Kazunori, Itoh Jun-ichi

    IEEJ Journal of Industry Applications ( The Institute of Electrical Engineers of Japan )   advpub ( 0 )   953 - 960   2023.01

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    Language：English   Publishing type：Research paper (scientific journal)

    <p>A cell capacitor is one of the most fragile components in a modular multilevel converter (MMC). Capacitance decreases and equivalent series resistance (ESR) increases, as the capacitor deteriorates. This paper proposes an online monitoring method for both the capacitance and ESR of the cell capacitors in an MMC without any additional components or operation. The proposed method measures the impedance of the cell capacitor not only at a low frequency but also at a switching sideband-frequency of the cell without current sensors for capacitor current. The high-frequency components around the switching frequency improve the estimation accuracy compared with the previous methods that measure only impedance at low frequencies. The experimental results confirm that the proposed method estimates the capacitance and ESR with errors of 3.1% and 8.8%, respectively.</p>

    DOI： 10.1541/ieejjia.22009850

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  • Current-Sensor-Less Condition Monitoring of a DC-Link Capacitor in a PWM Inverter With a Six-Pulse Diode Rectifier Reviewed International journal

    Hasegawa Kazunori, Kubo Tsukasa, Hirose Yuto

    IEEJ Journal of Industry Applications ( The Institute of Electrical Engineers of Japan )   12 ( 3 )   548 - 554   2023.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    <p>Condition monitoring helps improve the reliability of power electronic converters including their dc-link capacitors because it can predict converter failure and degradation. In practice, however, condition monitoring usually utilizes current sensors to obtain health condition, which is a constraint with regard to cost. This paper proposes a current-sensor-less condition monitoring method of a dc-link capacitor in a three-phase PWM inverter with a front-end six-pulse diode rectifier and a dc inductor. The proposed method measures both the capacitance and equivalent-series resistance (ESR) of the capacitor without using current sensors. Theoretical analysis reveals that the capacitor current is calculated using the three-phase ac source voltage and the dc inductor. Experimental results obtained from a 200-V laboratory system confirmed that both the ESR and capacitance changes were observed without using current sensors.</p>

    DOI： 10.1541/ieejjia.22009135

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  • Current-Sensor-Less Condition Monitoring of a DC-Link Capacitor Used in a PWM Inverter With a Six-Pulse Diode Rectifier Having AC and DC inductors Reviewed International journal

    Hasegawa K., Hirose Y.

    2023 IEEE Energy Conversion Congress and Exposition, ECCE 2023   3707 - 3710   2023.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/ECCE53617.2023.10362014

    Kyutacar

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  • Conference Report: The 2022 International Power Electronics Conference, IPEC-Himeji 2022 -ECCE Asia- May 15-19 2022, Himeji, Japan

    IEEJ Transactions on Industry Applications ( The Institute of Electrical Engineers of Japan )   142 ( 10 )   NL10_3 - NL10_3   2022.10

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    Authorship：Corresponding author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    DOI： 10.1541/ieejias.142.nl10_3

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    Other Link： https://www.jstage.jst.go.jp/article/ieejias/142/10/142_NL10_3/_pdf

  • A Robust Testing Method for DC and AC Capacitors With Minimum Required Power Supply Reviewed

    Yao B., Wang Q., Wang H., Hasegawa K., Wang H.

    IEEE Transactions on Power Electronics   37 ( 5 )   4942 - 4946   2022.05

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1109/TPEL.2021.3130085

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  • Condition Monitoring of a DC- Link Capacitor Used in a PWM Inverter With a Six-Pulse Diode Rectifier Without Current Sensors Reviewed

    Hasegawa K., Kubo T., Hirose Y.

    2022 International Power Electronics Conference, IPEC-Himeji 2022-ECCE Asia   2557 - 2561   2022.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.23919/IPEC-Himeji2022-ECCE53331.2022.9807247

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  • A testing method for evaluating shoot-through immunity of IGBTs in an inverter Reviewed

    Hasegawa K., Abe S., Tsukuda M., Omura I., Ninomiya T.

    Microelectronics Reliability   126   2021.11

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2021.114289

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  • Evaluation Techniques of Aluminum Electrolytic Capacitors for High-Frequency-Switching Power Converters

    HASEGAWA Kazunori

    The Journal of The Institute of Electrical Engineers of Japan ( The Institute of Electrical Engineers of Japan )   141 ( 10 )   630 - 632   2021.10

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    Authorship：Lead author   Language：Japanese   Publishing type：Article, review, commentary, editorial, etc. (scientific journal)

    DOI： 10.1541/ieejjournal.141.630

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  • Shoot-through protection for an inverter consisting of the next-generation IGBTs with gate impedance reduction Reviewed

    Hasegawa K., Abe S., Tsukuda M., Omura I., Ninomiya T.

    Microelectronics Reliability   114   2020.11

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    Authorship：Lead author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2020.113765

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  • Output-Current Measurement of a PWM Inverter with a Tiny PCB Rogowski Sensor Integrated into an IGBT Module Reviewed

    Hasegawa K., Sho S., Tsukuda M., Omura I., Ichiki M., Kato T.

    2019 IEEE Energy Conversion Congress and Exposition, ECCE 2019   5707 - 5711   2019.09

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    Authorship：Lead author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/ECCE.2019.8912662

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  • Self-Turn-on-Free 5V Gate Driving for 1200V Scaled IGBT Reviewed

    Tsukuda M., Sudo M., Hasegawa K., Abe S., Saraya T., Takakura T., Fukui M., Itou K., Suzuki S., Takeuchi K., Ninomiya T., Hiramoto T., Omura I.

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs   2019-May   339 - 342   2019.05

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/ISPSD.2019.8757665

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  • Mutual inductance influence to switching speed and TDR measurements for separating self- and mutual inductances in the package Reviewed

    Iida H., Hasegawa K., Omura I.

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs   2019-May   503 - 506   2019.05

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/ISPSD.2019.8757658

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  • Analog Basis, Low-Cost Inverter Output Current Sensing with Tiny PCB Coil Implemented inside IPM Reviewed

    Bayarkhuu B., Bat-Ochir B., Hasegawa K., Tsukuda M., Dugarjav B., Omura I.

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs   2019-May   251 - 254   2019.05

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/ISPSD.2019.8757580

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  • A Condition-Monitoring Method of DC-Link Capacitors Used in a High-Power Three-Phase PWM Inverter with an Evaluation Circuit Reviewed International journal

    Hasegawa Kazunori, Nishizawa Shin-ichi, Omura Ichiro

    IEEJ Journal of Industry Applications ( The Institute of Electrical Engineers of Japan )   8 ( 3 )   480 - 487   2019.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    <p>This paper presents a condition-monitoring method of dc-link capacitors used in a high-power three-phase PWM inverter with an evaluation circuit intended for ageing tests. Although its power rating is 1/25 of the inverter, the evaluation circuit provides the equivalent ripple current waveform and dc-bias voltage to the high-power inverter. The monitoring method independently extracts the capacitance and ESR of the dc-link capacitor, where the fast Fourier transform is introduced to the ripple current waveform and the dc-link voltage of the evaluation circuit. Experimental results verify that the monitoring method obtains both the ESR and capacitance changes of a capacitor under test.</p>

    DOI： 10.1541/ieejjia.8.480

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  • Calorimetric Power-Loss Measurement of a High-Power Film Capacitor with Actual Ripple Current Generated by a PWM Inverter Reviewed

    Hasegawa K., Omura I.

    2018 IEEE Energy Conversion Congress and Exposition, ECCE 2018   4688 - 4691   2018.12

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/ECCE.2018.8557709

    Scopus

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  • An Evaluation Circuit for DC-Link Capacitors Used in a High-Power Three-Phase Inverter with Condition Monitoring Invited Reviewed

    Hasegawa K., Omura I., Nishizawa S.I.

    2018 International Power Electronics Conference, IPEC-Niigata - ECCE Asia 2018   1938 - 1942   2018.10

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.23919/IPEC.2018.8507885

    Scopus

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  • Bias voltage criteria of gate shielding effect for protecting IGBTs from shoot-through phenomena Reviewed

    Tsukuda M., Abe S., Hasegawa K., Ninomiya T., Omura I.

    Microelectronics Reliability   88-90   482 - 485   2018.09

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2018.06.026

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  • ESR and capacitance monitoring of a dc-link capacitor used in a three-phase PWM inverter with a front-end diode rectifier Reviewed International journal

    Hasegawa K., Nishizawa S., Omura I.

    Microelectronics Reliability   88-90   433 - 437   2018.09

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2018.07.023

    Scopus

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  • Envelop tracking based embedded current measurement for monitoring of IGBT and power converter system Reviewed

    Bat-Ochir B.O., Bayarkhuu B., Hasegawa K., Tsukuda M., Dugarjav B., Omura I.

    Microelectronics Reliability   88-90   500 - 504   2018.09

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2018.06.028

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  • DC-bias-voltage dependence of degradation of aluminum electrolytic capacitors Reviewed International journal

    Hasegawa K., Tsuzaki K., Nishizawa S.

    Microelectronics Reliability   83   115 - 118   2018.04

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2018.02.012

    Scopus

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  • Clamp type built-in current sensor using PCB in high-voltage power modules Reviewed

    Tsukuda M., Nakashima K., Tabata S., Hasegawa K., Omura I.

    Microelectronics Reliability   76-77   517 - 521   2017.09

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2017.06.026

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  • Modelling of the shoot-through phenomenon introduced by the next generation IGBT in inverter applications Reviewed

    Abe S., Hasegawa K., Tsukuda M., Wada K., Omura I., Ninomiya T.

    Microelectronics Reliability   76-77   465 - 469   2017.09

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2017.06.087

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  • A new output current measurement method with tiny PCB sensors capable of being embedded in an IGBT module Reviewed

    32 ( 3 )   1707 - 1712   2017.03

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1109/TPEL.2016.2606111

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  • New power module integrating output current measurement function Reviewed

    Tabata S., Hasegawa K., Tsukuda M., Omura I.

    Proceedings of the International Symposium on Power Semiconductor Devices and ICs   267 - 270   2017.01

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.23919/ISPSD.2017.7988911

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  • An evaluation circuit for DC-link capacitors used in a single- phase PWM inverter Reviewed

    Hasegawa K., Omura I., Nishizawa S.

    PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management   2017.01

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    Authorship：Lead author,　Corresponding author   Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/SBMicro.2017.7990846

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  • Temperature rise measurement for power-loss comparison of an aluminum electrolytic capacitor between sinusoidal and square-wave current injections Reviewed

    64   98 - 100   2016.09

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1016/j.microrel.2016.07.049

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  • Mutual inductance measurement for power device package using time domain reflectometry Reviewed

    2016.01

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/ECCE.2016.7855285

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  • Low-modulation-index operation of a five-level diode-clamped pwm inverter with a DC-voltage-balancing circuit for a motor drive Reviewed

    27 ( 8 )   3495 - 3504   2012.05

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1109/TPEL.2012.2185068

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  • Low-speed rated-torque operation of a motor drive using a five-level diode-clamped PWM inverter with a front-end diode rectifier Reviewed

    1371 - 1377   2011.08

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/ICPE.2011.5944415

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  • A new DC-voltage-balancing circuit including a single coupled inductor for a five-level diode-clamped PWM inverter Reviewed

    47 ( 2 )   841 - 852   2011.03

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1109/TIA.2010.2102327

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  • Voltage balancing of the four split DC capacitors for a five-level diode-clamped PWM inverter with a front-end diode rectifier Reviewed

    734 - 739   2010.09

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    Language：English   Publishing type：Research paper (international conference proceedings)

    DOI： 10.1109/IPEC.2010.5543254

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  • A DC-voltage-balancing circuit for a five-level diode-clamped PWM inverter intended For motor drives Reviewed

    130 ( 5 )   2010.06

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    Language：English   Publishing type：Research paper (scientific journal)

    DOI： 10.1541/ieejias.130.677

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Publications (Books)

  • パワーエレクトロニクス回路用キャパシタの評価技術

    長谷川 一徳（Sole author）

    株式会社技術情報協会 月刊車載テクノロジー  2021.10 

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    Total pages：96   Responsible for pages：30-36   Language：Japanese

  • パワーコンバータに用いられるアルミニウム電解コンデンサの 最新評価技術動向

    長谷川一徳（Contributor）

    オーム社  2019.10  （ ISBN:4910021211094 ）

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    Responsible for pages：17-19   Language：Japanese

Honors and Awards

  • Prize Letter Award for 2017 in the IEEE Transactions on Power Electronics

    IEEE Power Electronics Society   2018.09

    Kazunori Hasegawa, Satoru Takahara, Shoji Tabata, Masanori Tsukuda, Ichiro Omura

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    Country：United States

Other External Funds

  • 産業用モータ駆動インバータの高信頼化に資するセンサレス寿命診断システムの開発

    2021.07 - 2023.06

    NEDO 官民による若手研究者発掘支援事業