Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8953473 | Communication device | — | 2015-02-10 |
| 7961744 | Frame multiplexing device | Hiroyuki Sato | 2011-06-14 |
| 7440397 | Protection that automatic and speedily restore of Ethernet ring network | Osamu Tsurumi, Kenichi Kawarai, Akio Endou, Akihiro Asa | 2008-10-21 |