Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7859210 | Semiconductor device for driving motor, three-phase motor and motor driving apparatus with the semiconductor device and fan motor | Kenji Sakurai, Hiroyuki Hasegawa, Shoichi Ohozeki, Daisuke Maeda, Mitsuhiro Mishima | 2010-12-28 |
| 6580108 | Insulated gate bipolar transistor decreasing the gate resistance | Shoichi Ozeki, Koichi Suda | 2003-06-17 |