Issued Patents 2004
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6829277 | Distributed feedback semiconductor laser device and laser module | Ryosuke Yatsu, Akihiko Kasukawa | 2004-12-07 |
| 6782028 | Semiconductor laser device for use in a semiconductor laser module and an optical amplifier | Naoki Tsukiji, Junji Yoshida, Toshio Kimura, Takeshi Aikiyo, Takeo Shimizu +5 more | 2004-08-24 |
| 6782022 | Semiconductor laser device having improved output power characteristics | Ryosuke Yatsu, Akihiko Kasukawa | 2004-08-24 |
| 6765935 | Semiconductor laser module, manufacturing method thereof and optical amplifier | Toshio Kimura, Masashi Nakae, Takeo Shimizu, Naoki Tsukiji, Junji Yoshida +5 more | 2004-07-20 |
| 6743648 | Method for fabricating a set of distributed feedback semiconductor lasers | Tomofumi Kise | 2004-06-01 |
| 6728288 | DFB semiconductor laser device | Satoshi Arakawa | 2004-04-27 |
| 6704342 | Gain-coupled distributed-feedback semiconductor laser device | Akihiko Kasukawa | 2004-03-09 |
| 6680960 | Semiconductor laser device having a diffraction grating on a light emission side | Junji Yoshida, Naoki Tsukiji | 2004-01-20 |
| 6674783 | Distributed feedback type semiconductor laser device and method of manufacturing the same | Akihiko Kasukawa | 2004-01-06 |