Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12355245 | Reactive power compensation device | Toshiyuki Fujii, Akihiro Matsuda, Ryota OKUYAMA | 2025-07-08 |
| 12266935 | Power conversion device | Hiroki Ishihara, Toshiyuki Fujii | 2025-04-01 |
| 12068679 | Power conversion device preventing overcurrent at the time of starting | Toshiyuki Fujii | 2024-08-20 |
| 10931113 | Power conversion device and power system performing protection control for suppressing received power | Takuya Kajiyama, Toshiyuki Fujii, Osamu Mori | 2021-02-23 |
| 10826378 | Power conversion apparatus for interconnection with a three-phrase ac power supply | Toshiyuki Fujii, Ryosuke Uda, Taichiro Tsuchiya, Hisanori Taguchi, Ryota OKUYAMA | 2020-11-03 |
| 10790761 | Power conversion device and DC power transmission system | Takuya Kajiyama, Takeshi Kikuchi, Osamu Mori, Toshiyuki Fujii | 2020-09-29 |
| 10498251 | Power converter | Osamu Mori, Toshiyuki Fujii, Ryosuke Uda, Taichiro Tsuchiya, Akihiro Matsuda +1 more | 2019-12-03 |
| 10326355 | Power conversion device | Takeshi Kikuchi, Toshiyuki Fujii | 2019-06-18 |
| 10110110 | Power conversion device | Toshiyuki Fujii, Takushi Jimichi, Ryosuke Uda, Taichiro Tsuchiya, Akihiro Matsuda +1 more | 2018-10-23 |
| 9960709 | Power conversion device | Toshiyuki Fujii, Ryosuke Uda, Taichiro Tsuchiya, Akihiro Matsuda, Hisanori Taguchi | 2018-05-01 |
| 9812992 | Power conversion system | Toshiyuki Fujii, Osamu Mori, Shinzo Tamai, Sadao Funahashi, Yasuhiko Hosokawa +1 more | 2017-11-07 |
| 9806630 | Power conversion device | Toshiyuki Fujii, Miwako TANAKA, Osamu Mori, Shinzo Tamai, Sadao Funahashi +2 more | 2017-10-31 |
| 9755542 | Direct-current power transmission power conversion device and direct-current power transmission power conversion method | Toshiyuki Fujii, Osamu Mori, Shinzo Tamai, Sadao Funahashi, Yasuhiko Hosokawa +1 more | 2017-09-05 |
| 9712084 | Electric power conversion device | Takeshi Kikuchi, Toshiyuki Fujii, Osamu Mori, Shinzo Tamai, Sadao Funahashi +2 more | 2017-07-18 |
| 9564827 | Power conversion device | Toshiyuki Fujii, Osamu Mori, Shinzo Tamai, Sadao Funahashi, Yasuhiko Hosokawa +1 more | 2017-02-07 |