Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6977771 | Optical amplifier supervisory control method in WDM communication system | Taro Asao, Nobuyuki Nemoto, Kazuo Tanaka | 2005-12-20 |
| 6879595 | Apparatus for transmission between subscriber terminals and any types of switches | — | 2005-04-12 |