Issued Patents 2017
Showing 1–2 of 2 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 |