Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10056979 | Optical transmission device and optical communication system | — | 2018-08-21 |
| 9910221 | Polarization reducing apparatus, light source apparatus, optical amplifying apparatus, and excitation light source apparatus for raman amplification | — | 2018-03-06 |
| 9910300 | Variable optical attenuator and optical module | Yuya Osumi, Jun Okabe | 2018-03-06 |