Issued Patents 2016
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9450699 | Optical drop device, optical drop method, and optical add device | Tomoyuki Kato | 2016-09-20 |
| 9319170 | Optical frequency division multiplexer and polarization control method | Ryou Okabe | 2016-04-19 |
| 9252840 | Optical signal processing apparatus, transmission apparatus, and optical signal processing method | — | 2016-02-02 |