Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7999661 | Signal relay device, communication network system and operation system | Masanori Noguchi, Toshiro Tomita, Tetsuo Hoshi, Koji Demachi, Toshiki Ogawa +2 more | 2011-08-16 |