Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7079483 | Ring network and method for path interchange therein | Hirotaka Yamada, Yutaka Iwagaki, Yuichi Namioka, Yutaka Tokunou, Kousaku Awada | 2006-07-18 |
| 5754310 | Facsimile signal relay method and apparatus therefor | Kazuhiko Aoki, Yutaka Moriyama, Kazuhiro Shibuya | 1998-05-19 |
| 4802240 | Synchronous receiving method for selective calling signal | Hiroyuki Yamaguchi | 1989-01-31 |