Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885637 | Encoder | Akihiro Shikakura, Koji Takahashi, Masahiro Takei | 1989-12-05 |
| 4878128 | Video signal reproducing apparatus | Hiroto Yasumura, Masahide Hirasawa, Minoru Noji, Susumu Kozuki, Koji Takahashi +1 more | 1989-10-31 |
| 4816940 | Rotary head recording and reproducing apparatus with plural modes and search capability | Kenichi Nagasawa, Tsutomu Fukatsu | 1989-03-28 |
| 4797741 | Information signal transmission system | Chikara Sato, Tadayoshi Nakayama, Koji Takahashi | 1989-01-10 |