Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882615 | Video signal processing system | Katsuji Yoshimura, Hisashi Ishikawa, Chikara Sato | 1989-11-21 |
| 4870509 | Compact video signal recording and/or reproducing apparatus adapted for external input video signals and variable speed reproduction | Kenichi Nagasawa, Koji Takahashi, Hiroto Yasumura, Ohikara Sato | 1989-09-26 |
| 4849833 | Image signal recording apparatus | Katsuji Yoshimura, Toshiyuki Masui, Chikara Sato | 1989-07-18 |
| 4797741 | Information signal transmission system | Chikara Sato, Koji Takahashi, Tomohiko Sasatani | 1989-01-10 |