Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638246 | Semiconductor device having a protection circuit, and electronic system including the same | Kozo Sakamoto, Isao Yoshida, Masatoshi Morikawa, Hideki Tsunoda | 1997-06-10 |
| 5196354 | Method of manufacturing semiconductor device with controlled carrier lifetime | Akio Andoo, Tetsuo Iijima | 1993-03-23 |
| 4814288 | Method of fabricating semiconductor devices which include vertical elements and control elements | Masatoshi Kimura, Takeaki Okabe, Isao Yoshida, Kouzou Sakamoto, Kazuo Hoya +2 more | 1989-03-21 |
| 4492974 | DMOS With gate protection diode formed over base region | Isao Yoshida, Takeaki Okabe, Mineo Katsueda, Minoru Nagata, Toshiaki Masuhara +5 more | 1985-01-08 |