Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11527866 | Semiconductor optical device | Naoki Fujiwara, Hideki Yagi, Takuo HIRATANI, Takehiko Kikuchi, Toshiyuki Nitta | 2022-12-13 |
| 9444221 | Laser apparatus and method to re-tune emission wavelength tunable LD | Katsumi Uesaka, Eiichi Banno, Hiroyuki Matsuura, Haruhiko Kuwatsuka, Ken Tanizawa +1 more | 2016-09-13 |
| 9395504 | System to control wavelength and method to control wavelength | Katsumi Uesaka, Eiichi Banno, Hiroyuki Matsuura, Haruhiko Kuwatsuka, Ken Tanizawa +1 more | 2016-07-19 |
| 6850550 | Complex coupling MQW semiconductor laser | Hirohiko Kobayashi, Tsutomu Ishikawa | 2005-02-01 |
| 6579737 | Optical semiconductor module, its manufacture, reflection film, its manufacture, and laser and optical devices using reflection film | Yoshihiro Yoneda, Akira Fukushima, Haruhisa Soda | 2003-06-17 |
| 6560266 | Distributed feedback semiconductor laser | Hirohiko Kobayashi, Tsutomu Ishikawa | 2003-05-06 |
| 6512783 | Semiconductor laser and method of manufacturing the same | Tsuyoshi Yamamoto, Takayuki Watanabe, Takuya Fujii, Hirohiko Kobayashi | 2003-01-28 |
| 6448583 | Optical semiconductor module, its manufacture, reflection film, its manufacture, and laser and optical devices using reflection film | Yoshihiro Yoneda, Akira Fukushima, Haruhisa Soda | 2002-09-10 |
| 6426515 | Semiconductor light-emitting device | Tsutomu Ishikawa, Hirohiko Kobayashi, Tsuyoshi Yamamoto | 2002-07-30 |
| 5783845 | Semiconductor device and its manufacture utilizing crystal orientation dependence of impurity concentration | Makoto Kondo, Chikashi Anayama | 1998-07-21 |
| 5668048 | Method of making a semiconductor device utilizing crystal orientation dependence of impurity concentration | Makoto Kondo, Chikashi Anayama | 1997-09-16 |
| 5533041 | Optical transmission and reception device | Manabu Matsuda | 1996-07-02 |
| 5408486 | Surface emitting laser provided with light modulator | — | 1995-04-18 |
| 5404370 | Planar light emitting device having a reduced optical loss | Koji Otsubo | 1995-04-04 |
| 5373520 | Surface emitting laser and method of manufacturing the same | Koji Otsubo, Tatsuroh Ikeda, Manabu Matsuda, Hiroshi Ishikawa | 1994-12-13 |
| 5187551 | Thin film semiconductor device and liquid crystal display apparatus thereof for preventing irradiated light from reaching the semiconductor layers | Noriko Watanabe, Hiroshi Hamada, Hiroaki Kato, Toshio Takemoto, Toshihiko Hirobe | 1993-02-16 |
| 5155564 | Thin-film transistor array | Tadanori Hishida, Hiroshi Hamada, Hisato Nagatomi | 1992-10-13 |
| 5051800 | Thin film semiconductor device and liquid crystal display apparatus using thereof | Noriko Watanabe, Hiroshi Hamada, Hiroaki Kato, Toshio Takemoto, Toshihiko Hirobe | 1991-09-24 |