Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642252 | Insulated gate semiconductor device and driving circuit device and electronic system both using the same | Isao Yoshida, Shigeo Otaka, Tetsuo Iijima, Harutora Shono, Ken Uchid +2 more | 1997-06-24 |
| 5638246 | Semiconductor device having a protection circuit, and electronic system including the same | Isao Yoshida, Masatoshi Morikawa, Shigeo Ohtaka, Hideki Tsunoda | 1997-06-10 |
| 5629542 | Compounded power MOSFET | Shigeo Otaka, Kyouichi Takagawa | 1997-05-13 |