Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8898394 | Data migration method | Norio Kondo, Ken-ichiroh Tango | 2014-11-25 |
| 8798460 | Optical access system, optical network unit, and optical line terminal | Noboru Oosawa, Tohru Kazawa | 2014-08-05 |
| 8542998 | Passive optical network system and sleep time determination method | Makoto Kamijo, Noboru Oosawa | 2013-09-24 |