Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10397133 | Station-side apparatus in optical transmission system and optical transmission system | Saki Hatta, Kenji Kawai, Nobuyuki Tanaka, Satoshi Shigematsu, Namiko Ikeda +2 more | 2019-08-27 |
| 10202298 | Polarizing glass plate and method for manufacturing same, polarizing glass plate set for optical isolator, and method for manufacturing optical element for optical isolator | Kouichi Yabuuchi, Hirokazu Takeuchi | 2019-02-12 |
| 10193630 | Station-side device and optical transmission system | Shoko Ohteru, Namiko Ikeda, Saki Hatta, Satoshi Shigematsu, Nobuyuki Tanaka +5 more | 2019-01-29 |