Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4868758 | Data communication system | — | 1989-09-19 |
| 4860110 | Communication terminal device | — | 1989-08-22 |
| 4799110 | Image signal coding apparatus | Katsutoshi Hisada, Shigeki Sakurai, Yukio Murata, Tatsuo Okano | 1989-01-17 |