Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8078701 | Network design and determination of the arrangement of optical transmission devices in respective network stations | Tomohiro Hashiguchi, Toru Katagiri, Kazuyuki Tajima | 2011-12-13 |
| 7991301 | Detecting abnormality in an optical receiver | Noriaki Mizuguchi, Yoshikazu Terayama, Kenichi Kaburagi | 2011-08-02 |