Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4734765 | Video/audio information transmission system | Shigetoshi Okada, Shoichi Matsuhashi, Yoji Shibata | 1988-03-29 |
| 4538176 | Buffer memory dispersion type video/audio transmission system | Hirohito Nakajima, Katsumi Haji, Yoji Shibata | 1985-08-27 |
| 4518989 | Buffer memory dispersion type video/audio transmission system with spatially and timewise divided inter-office junction lines | Akira Yabiki, Norio Imanishi, Yoji Shibata, Nobumichi Yukawa | 1985-05-21 |
| 4251691 | Picture/audio signal transmission system | Hideto Kakihara, Kenichi Hiratsuka, Yoji Shibata | 1981-02-17 |