Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11022811 | Optical amplifier and optical switch device | Suguru Akiyama, Kazuhiro Ikeda, Takeshi Matsumoto, Hitoshi Kawashima, Ken Tanizawa | 2021-06-01 |
| 10901242 | Driving device and driving method for phase controller, and optical switch | Ken Tanizawa, Hiroyuki Matsuura, Satoshi Suda, Haruhiko Kuwatsuka, Guangwei Cong +3 more | 2021-01-26 |