Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9766483 | Optical transceiver implementing erbium doped fiber amplifier | Takatoshi Kato, Eiji Tsumura | 2017-09-19 |
| 9743546 | Optical transceiver and method to assemble the same | Kazushige Oki | 2017-08-22 |
| 9686017 | Bias control circuit for optical modulator, and optical transmitter comprising the same | Shingo Yamanaka | 2017-06-20 |
| 9653881 | Method for testing tunable wavelength laser device and tunable wavelength laser device | — | 2017-05-16 |
| 9444221 | Laser apparatus and method to re-tune emission wavelength tunable LD | Katsumi Uesaka, Hajime Shoji, Hiroyuki Matsuura, Haruhiko Kuwatsuka, Ken Tanizawa +1 more | 2016-09-13 |
| 9395504 | System to control wavelength and method to control wavelength | Katsumi Uesaka, Hajime Shoji, Hiroyuki Matsuura, Haruhiko Kuwatsuka, Ken Tanizawa +1 more | 2016-07-19 |
| 9042415 | Method to tune emission wavelength of semiconductor laser diode | — | 2015-05-26 |
| 8279907 | Semiconductor laser device and method for controlling semiconductor laser | — | 2012-10-02 |