Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6821806 | Method for forming compound semiconductor layer and compound semiconductor apparatus | Koji Takahashi | 2004-11-23 |
| 6813299 | Semiconductor laser device and optical disk reproducing and recording apparatus | Yoshie Fujishiro, Shuichi Hirukawa | 2004-11-02 |
| 6778574 | Semiconductor laser device and its manufacturing method, and optical communication system and optical sensor system | Atsushi Shimonaka, Kazuhiro Emoto | 2004-08-17 |