Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5300793 | Hetero crystalline structure and semiconductor device using it | Masahiko Kondow, Shigekazu Minagawa | 1994-04-05 |
| 5157679 | Optoelectronic devices | Masahiko Kondow, Toshihiro Kawano, Shigekazu Minagawa, Shin Satoh, Kenji Uchida +1 more | 1992-10-20 |
| 5136601 | Semiconductor laser | Naoki Chinone, Yuichi Ono, Shinichi Nakatsuka, Kazuhisa Uomi, Toshihiro Kawano +2 more | 1992-08-04 |
| 5042046 | Semiconductor laser device | Misuzu Sagawa | 1991-08-20 |
| 4961197 | Semiconductor laser device | Toshiaki Tanaka, Toshihiro Kawano, Yuichi Ono | 1990-10-02 |
| 4881235 | Semiconductor laser having a multiple quantum well structure doped with impurities | Naoki Chinone, Kazuhisa Uomi, Tadashi Fukuzawa, Hideaki Matsueda, Tsukuru Ohtoshi | 1989-11-14 |
| 4881238 | Semiconductor laser having quantum well active region doped with impurities | Naoki Chinone, Kazuhisa Uomi, Tadashi Fukuzawa, Hideaki Matsueda | 1989-11-14 |
| 4872175 | Semiconductor laser device having a lens-like refractive index distribution within the stripe | Shinichi Nakatsuka | 1989-10-03 |
| 4841531 | Semiconductor laser device | Masahiko Kondow, Shin Satoh, Shigekazu Minagawa, Akio Ohishi | 1989-06-20 |
| 4827483 | Semiconductor laser device and method of fabricating the same | Tadashi Fukuzawa, Naoki Chinone, Shin'ichi Nakatsuka, Katsutoshi Saito, Yuuichi Ono | 1989-05-02 |
| 4821275 | Laser diode | Shinichi Nakatsuka, Naoki Chinone, Kazuhisa Uomi, Yuichi Ono | 1989-04-11 |
| 4811354 | Semiconductor laser | Kazuhisa Uomi, Naoki Chinone, Misuzu Yoshizawa, Shin'ichi Nakatsuka, Yuichi Ono | 1989-03-07 |
| 4800565 | Semiconductor laser device having high optical intensity and reliability | Misuzu Yoshizawa, Kazuhisa Uomi, Toshihiro Kawano, Yuichi Ono | 1989-01-24 |
| 4797891 | Semiconductor laser | Kazuhisa Uomi, Misuzu Yoshizawa, Yuichi Ono, Naoki Chinone | 1989-01-10 |
| 4794606 | Opto-electronic device | Masahiko Kondow, Shigekazu Minagawa | 1988-12-27 |
| 4783425 | Fabrication process of semiconductor lasers | Tadashi Fukuzawa, Yuichi Ono, Shinichi Nakatsuka | 1988-11-08 |
| 4780879 | Semiconductor laser device having little astigmatism | Naoki Chinone, Shigeo Yamashita, Shin'ichi Nakatsuka, Akemi Yamanaka, Yuichi Ono +4 more | 1988-10-25 |
| 4752933 | Semiconductor laser | Kazuhisa Uomi, Shinichi Nakatsuka, Yuichi Ono, Naoki Chinone | 1988-06-21 |
| 4752934 | Multi quantum well laser with parallel injection | Tadashi Fukuzawa, Naoki Chinone, Kazuhisa Uomi | 1988-06-21 |
| 4740976 | Semiconductor laser device | Shinichi Nakatuka, Naoki Chinone, Michiharu Nakamura, Yuichi Ono | 1988-04-26 |
| 4630279 | Buried heterojunction laser | Takao Kuroda, Yasutoshi Kashiwada, Naoki Chinone, Kunio Aiki | 1986-12-16 |
| 4602371 | High output semiconductor laser device utilizing a mesa-stripe optical confinement region | Toshihiro Kawano, Tsukuru Ohtoshi, Naoki Chinone, Michiharu Nakamura | 1986-07-22 |
| 4599729 | Semiconductor laser device having facets provided with dielectric layers | Yoshimitsu Sasaki, Naoki Chinone, Michiharu Nakamura | 1986-07-08 |
| 4563764 | Semiconductor laser device | Takao Kuroda, Yasutoshi Kashiwada, Naoki Chinone, Hirobumi Ouchi, Tsukuru Ohtoshi | 1986-01-07 |
| 4509173 | Phase-locked semiconductor laser device | Jun-ichi Umeda, Hisao Nakashima, Takao Kuroda | 1985-04-02 |