Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4819240 | Light modulator | Haruhisa Takiguchi, Toshihiko Yoshida, Sadayoshi Matsui | 1989-04-04 |
| 4806454 | Method for the formation of a diffraction grating | Toshihiko Yoshida, Haruhisa Takiguchi, Sadayoshi Matsui | 1989-02-21 |
| 4805183 | Distributed feedback semiconductor laser device | Hiroaki Kudo, Haruhisa Takiguchi, Toshihiko Yoshida | 1989-02-14 |
| 4803690 | Semiconductor laser | Haruhisa Takiguchi, Toshihiko Yoshida, Sadayoshi Matsui | 1989-02-07 |
| 4799227 | Semiconductor laser device having a buried heterostructure | Haruhisa Takiguchi, Toshihiko Yoshida, Sadayoshi Matsui | 1989-01-17 |
| 4771434 | Semiconductor laser device with an integrated light-detecting area | Toshihiko Yoshida, Haruhisa Takiguchi, Sadayoshi Matsui | 1988-09-13 |
| 4745615 | Semiconductor laser device with a diffraction grating | Haruhisa Takiguchi, Toshihiko Yoshida, Sadayoshi Matsui | 1988-05-17 |
| 4745616 | Semiconductor laser device with a diffraction grating | Haruhisa Takiguchi, Toshihiko Yoshida, Sadayoshi Matsui | 1988-05-17 |
| 4730329 | Semiconductor laser device | Toshihiko Yoshida, Haruhisa Takiguchi, Sadayoshi Matsui | 1988-03-08 |
| 4716570 | Distributed feedback semiconductor laser device | Toshihiko Yoshida, Haruhisa Takiguchi, Sadayoshi Matsui | 1987-12-29 |
| 4712219 | Visible double heterostructure-semiconductor laser | Seiki Yano, Saburo Yamamoto, Haruhisa Takiguchi | 1987-12-08 |
| 4692206 | Method for producing a semiconductor laser device having a buried heterostructure | Haruhisa Takiguchi, Toshihiko Yoshida, Sadayoshi Matsui | 1987-09-08 |
| 4679200 | Semiconductor laser | Sadayoshi Matsui, Mototaka Taneya, Haruhisa Takiguchi | 1987-07-07 |
| 4658403 | Optical element in semiconductor laser device having a diffraction grating and improved resonance characteristics | Haruhisa Takiguchi, Sadayoshi Matsui, Mototaka Taneya | 1987-04-14 |