Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882615 | Video signal processing system | Katsuji Yoshimura, Tadayoshi Nakayama, Chikara Sato | 1989-11-21 |
| 4843334 | Frequency demodulator operable with low frequency modulation carriers | Katsuji Yoshimura | 1989-06-27 |
| 4812920 | Wide band video signal recording apparatus | Yoshitake Nagashima, Susumu Kozuki, Katsuji Yoshimura, Koji Takahashi, Kenichi Nagasawa | 1989-03-14 |