Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6925102 | Semiconductor laser device, semiconductor laser module, and Raman amplifier using the device or module | Junji Yoshida, Naoki Tsukiji | 2005-08-02 |
| 6921677 | Method of manufacturing semiconductor element, and semiconductor element manufactured with this method | Naoki Tsukiji | 2005-07-26 |
| 6898228 | Semiconductor laser device, semiconductor laser module, Raman amplifier using the device or module, and method for forming a suitable current blocking layer | Naoki Tsukiji, Junji Yoshida | 2005-05-24 |