Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9887772 | Transmission device, transmission network system, and path delay measuring method | Naoya Okada, Yasuyuki Mitsumori, Ryuichi Moriya, Kenichi Yajima | 2018-02-06 |
| 9485014 | Transmission apparatus, transmission system, and failure detection method | Kohei Ichimura, Yasuko Nozu | 2016-11-01 |
| 7889988 | Optical transmission apparatus | Hideaki Tazawa | 2011-02-15 |