Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5699378 | Optical comb filters used with waveguide, laser and manufacturing method of same | Ian Lealman, Michael Robertson | 1997-12-16 |
| 5666455 | Waveguide device | Masahiro Aoki, Tatemi Ido, Takayuki Tsutsui, Kazuhisa Uomi, Tomonobu Tsuchiya +1 more | 1997-09-09 |
| 5572616 | Waveguide device | Masahiro Aoki, Tatemi Ido, Takayuki Tsutsui, Kazuhisa Uomi, Tomonobu Tsuchiya +1 more | 1996-11-05 |
| 5340637 | Optical device diffraction gratings and a photomask for use in the same | Shinji Tsuji, Akio Ohishi, Motohisa Hirao, Hiroyoshi Matsumura, Tatsuo Harada +2 more | 1994-08-23 |
| 5177758 | Semiconductor laser device with plural active layers and changing optical properties | Akihiko Oka, Shinji Sakano, Naoki Chinone, Tsukuru Ohtoshi, Kazuhisa Uomi +1 more | 1993-01-05 |
| 5119393 | Semiconductor laser device capable of controlling wavelength shift | Akihiko Oka, Shinji Sakano, Naoki Chinone, Tsukuru Ohtoshi, Kazuhisa Uomi +1 more | 1992-06-02 |
| 4905060 | Light emitting device with disordered region | Naoki Chinone, Hisao Nakashima, Shinji Tsuji | 1990-02-27 |
| 4894835 | Surface emitting type semiconductor laser | Kazuhisa Uomi, Shinji Tsuji, Shinji Sakano, Naoki Chinone | 1990-01-16 |
| 4885753 | Semiconductor laser device of variable wavelength type | Kazuhisa Uomi, Shinji Tsuji, Shinji Sakano, Naoki Chinone | 1989-12-05 |
| 4873691 | Wavelength-tunable semiconductor laser | Kazuhisa Uomi, Shinji Tsuji, Shinji Sakano, Naoki Chinone | 1989-10-10 |