Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4881113 | Semiconductor integrated circuits with a protection device | Mitsugi Ogura, Takaki Kumanomido | 1989-11-14 |
| 4875195 | Semiconductor device with a reference voltage generator | Koji Sakui | 1989-10-17 |
| 4799193 | Semiconductor memory devices | Fumio Horiguchi, Yasuo Itoh, Mitsugi Ogura | 1989-01-17 |