Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5398329 | System for switching between first and second control unit and broadcasting switchover to connecting hosts indicating availability of first and second communication links | Toshiaki Hirata, Kazuo Yagyu | 1995-03-14 |
| 5051992 | Data link control method and system for integrated services digital network | Hidenobu Taniguchi, Satoshi Miyazaki, Sinichi Kouyama, Keizou Mizuguchi, Kazuo Yagyu | 1991-09-24 |
| 4879742 | Charging system in data communication network | Hidenobu Taniguchi | 1989-11-07 |
| 4875208 | Transmission method for control information in communication network | Koshi Furuhashi, Satoshi Miyazaki, Masakazu Furuya, Sinichi Kouyama, Jiro Kashio | 1989-10-17 |