Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6229196 | Semiconductor device and fabrication method thereof | Nobuyasu Shishido, Yoshifumi Tomomatsu | 2001-05-08 |
| 5945691 | Semiconductor device for preventing destruction during a turn-off state | Yoshifumi Tomomatsu, Noriyuki Soejima | 1999-08-31 |