Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10911153 | High-speed photodetector array | Toshimasa Umezawa, Takahide Sakamoto, Naokatsu Yamamoto, Tetsuya Kawanishi | 2021-02-02 |
| 10608748 | Common mode rejection ratio measurement device for coherent optical receiver, and measurement method | Keizo Inagaki, Tetsuya Kawanishi, Naokatsu Yamamoto | 2020-03-31 |
| 10598964 | Method for generating optical signal, and device for generating optical signal | Tetsuya Kawanishi | 2020-03-24 |
| 9503186 | Space division multiplexing apparatus including multi-core fiber and selfhomodyne detection method | Tetsuya Kawanishi, Yoshinari Awaji, Ben Puttnam | 2016-11-22 |
| 9250455 | Optical modulator | Youichi Hosokawa, Kaoru Higuma, Tetsuya Kawanishi | 2016-02-02 |
| 9231638 | High-speed communication control system | Tetsuya Kawanishi | 2016-01-05 |
| 7933671 | Data outputting device, data outputting method, data outputting program, and recording medium | — | 2011-04-26 |
| 7147562 | Input character processing method | Toru Ohara, Haruyuki Hashimoto, Takashi Uryu, Kenjiro Morimoto, Kenich Fujiwara +6 more | 2006-12-12 |