Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875090 | Information data transmission system | Shinichi Yamashita, Naoto Abe, Motokazu Kashida, Masahiro Takei, Koji Takahashi | 1989-10-17 |
| 4862292 | Digital information signal recording apparatus | Masahiko Enari, Katsuji Yoshimura, Akio Aoki, Shinichi Yamashita, Motokazu Kashida +3 more | 1989-08-29 |