Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4831433 | Semiconductor device | Mitsugi Oguara, Shigeyoshi Watanabe | 1989-05-16 |
| 4800530 | Semiconductor memory system with dynamic random access memory cells | Yasuo Itoh, Shigeyoshi Watanabe, Kazunori Ohuchi, Mitsugi Ogura | 1989-01-24 |
| 4799193 | Semiconductor memory devices | Yasuo Itoh, Mitsugi Ogura, Masaki Momodomi | 1989-01-17 |