Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11165501 | Excitation light source apparatus and optical transmission system | Toshiyuki Tokura, Shun Chikamori, Kengo Takata | 2021-11-02 |
| 10708676 | Optical transmission line switching apparatus, optical transmission system, and transmission line switching method | Shun Chikamori, Toshiyuki Tokura, Kengo Takata | 2020-07-07 |
| 9831953 | Excitation light source device and optical transmission system | Toshiyuki Tokura, Hideki Sueoka, Kengo Takata | 2017-11-28 |