Issued Patents All Time
Showing 26–44 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11245010 | Semiconductor device and method of manufacturing semiconductor device | Kosuke Yoshida, Haruo Nakazawa, Kenichi Iguchi, Koh Yoshikawa | 2022-02-08 |
| 11239324 | Semiconductor device and semiconductor device manufacturing method | Takashi Yoshimura, Yuichi Onozawa, Hiroshi TAKISHITA, Misaki MEGURO, Naoko KODAMA | 2022-02-01 |
| 11081410 | Method of manufacturing semiconductor device | Hiroshi TAKISHITA, Kazuhiro KITAHARA, Ryouichi KAWANO | 2021-08-03 |
| 11049785 | Semiconductor device and fabrication method thereof | Soichi YOSHIDA | 2021-06-29 |
| 10700593 | Step-down chopper circuit having bypass elements | — | 2020-06-30 |
| 10418801 | Three-level chopper apparatus | Yasushi Abe | 2019-09-17 |
| 10276386 | Signal relay board for power semiconductor modules | Ryohei Makino, Kiyoshi Takahashi | 2019-04-30 |
| 10256721 | Step-down chopper circuit including a switching device circuit and a backflow prevention diode circuit | Osamu Hikone | 2019-04-09 |
| 10243353 | DC-DC converter | Masatoshi Tsuyuki, Ryohei Makino | 2019-03-26 |
| 10164523 | Boost chopper circuit | Hao Hou | 2018-12-25 |
| 10164530 | Boost chopper circuit including switching device circuit and backflow prevention diode circuit | Hao Hou | 2018-12-25 |
| 10020756 | Boost chopper circuit | Hao Hou | 2018-07-10 |
| 9893606 | Three-level chopper apparatus | Yasushi Abe | 2018-02-13 |
| 9837894 | Chopper device | Ryohei Makino | 2017-12-05 |
| 9812966 | Chopper circuit | — | 2017-11-07 |
| 9418852 | Method of manufacturing a semiconductor device | Haruo Nakazawa | 2016-08-16 |
| 8809130 | Reverse block-type insulated gate bipolar transistor manufacturing method | Haruo Nakazawa, Hideaki Teranishi, Hideo Shimizu | 2014-08-19 |
| 8558342 | Semiconductor device | Koh Yoshikawa | 2013-10-15 |
| 8460975 | Reverse block-type insulated gate bipolar transistor manufacturing method | Haruo Nakazawa, Hideaki Teranishi, Hideo Shimizu | 2013-06-11 |