Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4866542 | Remote-controlling commander with multi-function rotary dial | Tatsuya Wakahara, Noboru Shibuya | 1989-09-12 |
| 4821032 | Communication system for video information apparatus | Shinji Takada, Mitsugu Ishihara, Yukihiko Machida | 1989-04-11 |