Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642252 | Insulated gate semiconductor device and driving circuit device and electronic system both using the same | Kozo Sakamoto, Isao Yoshida, Shigeo Otaka, Tetsuo Iijima, Harutora Shono +2 more | 1997-06-24 |
| 5638246 | Semiconductor device having a protection circuit, and electronic system including the same | Kozo Sakamoto, Isao Yoshida, Masatoshi Morikawa, Shigeo Ohtaka | 1997-06-10 |