Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4888648 | Electronic album | Ryozo Takeuchi, Tetsuya Nagata, Eturo Hirose | 1989-12-19 |
| 4809224 | Read only memory device with memory cells each storing one of three states | Yasuo Suzuki, Hiroshi Hirao | 1989-02-28 |
| 4809227 | Read only memory device having memory cells each storing one of three states | Yasuo Suzuki, Nobuo Ikuta | 1989-02-28 |