Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10128656 | Power assist unit and power assist system | Toshiki Tatsuta, Tetsuhiro Ishikawa, Yoshiaki Okui | 2018-11-13 |
| 9979283 | DC boosting circuit with at least one energy storage element | — | 2018-05-22 |
| 9531252 | Snubber circuit | — | 2016-12-27 |
| 9479080 | Multilevel converter circuit for generating a plurality of voltage levels | — | 2016-10-25 |
| 9142956 | Multilevel power converter | — | 2015-09-22 |
| 8901602 | Power semiconductor device and power conversion system using the device | Satoki Takizawa | 2014-12-02 |
| 5892675 | AC current source circuit for converting DC voltage into AC current | Kazuo Kuroki | 1999-04-06 |