Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9667159 | Power conversion apparatus including a transformer, an invertor circuit and a plurality of switching devices controlled by a controller | Keiji Akamatsu, Takaaki Norisada, Sohei Okamoto, Daisuke Fukuda | 2017-05-30 |
| 9543823 | Power conversion apparatus having a switching circuit unit that includes a switching device and an auxiliary switching device | Sohei Okamoto, Keiji Akamatsu, Daisuke Fukuda, Takaaki Norisada | 2017-01-10 |
| 9487098 | Power conversion apparatus | Takaaki Norisada, Hajime Hida, Sohei Okamoto, Keiji Akamatsu | 2016-11-08 |
| 9431917 | Switching power supply including a rectifier circuit having switching elements, and electric power converter | Sohei Okamoto, Daisuke Fukuda, Takaaki Norisada, Keiji Akamatsu | 2016-08-30 |