Issued Patents All Time
Showing 25 most recent of 34 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12381490 | Electric power conversion device | Jun Kato, Takahiro Hagimoto | 2025-08-05 |
| 12294290 | Controller for power converter | Ryoya KAZAOKA, Shunichi Kubo, Ken TOSHIYUKI | 2025-05-06 |
| 11921138 | Insulation resistance detection device | Masakazu KOUDA, Ryota Kubokawa, Toru Wakimoto | 2024-03-05 |
| 11874339 | Insulation resistance determination apparatus | Ryota Kubokawa, Masakazu KOUDA, Toru Wakimoto, Akira Sumi | 2024-01-16 |
| 11757348 | Control device for power conversion device | Hiroaki Sato, Ryota Kitamoto | 2023-09-12 |
| 11385297 | Electrical leakage determination system | Toru Wakimoto, Masakazu KOUDA | 2022-07-12 |
| 11163014 | Electrical leakage determination system | Toru Wakimoto, Masakazu KOUDA | 2021-11-02 |
| 10765044 | Electric power conversion device | Toshiki Ikeda, Jun Kato, Kosuke Nishiyama, Takanori SAKAGUCHI, Takaaki Fushimi +2 more | 2020-09-01 |
| 10742210 | Drive circuit for switch | Tomotaka Suzuki, Yasutaka Senda, Ken TOSHIYUKI | 2020-08-11 |
| 10644608 | Electric power conversion device | Jun Kato, Ryota Kitamoto, Shinnosuke Sato, Toshiki Ikeda, Takanori SAKAGUCHI +2 more | 2020-05-05 |
| 10461736 | Semiconductor device | Yoshitaka Kato, Kenji Komiya, Yoshinori Hayashi, Kenichi Wakabayashi | 2019-10-29 |
| 10374509 | Control circuit for power converter | Koichi Nishibata, Tomohisa Ose, Junichi Fukuta, Yasuhiro Terao, Eiichiro Shigehara +1 more | 2019-08-06 |
| 10256330 | Switching circuit | Ken TOSHIYUKI, Tomotaka Suzuki | 2019-04-09 |
| 10081251 | Apparatus for controlling power converters | Youhei Kondou | 2018-09-25 |
| 9742324 | Integrated circuit | Junichi Fukuta, Koichi Nishibata, Hiroya Tsuji, Shinichiro Nakata, Yasutaka Senda | 2017-08-22 |
| 9724999 | Insulated power supply apparatus with upper arm transformers and a lower arm transformer | Syun Miyauchi, Tsuneo Maebara, Junichi Fukuta | 2017-08-08 |
| 9716452 | Rotation angle calculation device | Koichi Nishibata, Junichi Fukuta | 2017-07-25 |
| 9712038 | Insulated power supply apparatus applied to power converter circuit including series connections of upper and lower arm switching elements | Syun Miyauchi, Tsuneo Maebara, Junichi Fukuta | 2017-07-18 |
| 9372220 | Inverter | Takao Kanzaki, Koichi Sakata, Yasuaki Igarashi | 2016-06-21 |
| 9093920 | Discharge control apparatus for power converting system with capacitor | Yoshiyuki Hamanaka, Tsuneo Maebara, Koichi Sakata | 2015-07-28 |
| 8848408 | Discharge control device of electric power conversion system | Tsuneo Maebara, Koichi Sakata | 2014-09-30 |
| 8797700 | Apparatus for detecting temperature of switching elements | Yasunari Tanimura, Shinichiro Nakata, Tsuneo Maebara | 2014-08-05 |
| 8659248 | Drive device for electric power conversion circuit | Ryotaro Miura, Tsuneo Maebara, Junichi Fukuta, Junichi Nagata | 2014-02-25 |
| 8531212 | Drive circuit for voltage-control type of semiconductor switching device | Tetsuya Dewa, Shinichiro Nakata | 2013-09-10 |
| 8525371 | Discharge control apparatus arranged in power conversion system | Tsuneo Maebara, Ryotaro Miura | 2013-09-03 |