Issued Patents 1994
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333134 | Connection hold control system | Ryoichi Ishibashi, Tohio Irie | 1994-07-26 |
| 5287349 | ATM exchange system | Ryuji Hyodo, Susumu Eda, Kenji Tanaka, Katsumi Oomuro, Osamu Sekihata +4 more | 1994-02-15 |