Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4849939 | Semiconductor memorizing device | Hiromi Matsuura, Kanehide Kenmizaki, Osamu Okayama | 1989-07-18 |
| 4807190 | Semiconductor integrated circuit device | Kyoko Ishii, Kazumasa Yanagisawa | 1989-02-21 |