Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5638391 | Semiconductor laser device and optical disc apparatus provided with the semiclonductor laser device | Akihiro Shima, Toshitaka Aoyagi | 1997-06-10 |
| 5596592 | Semiconductor laser device | Tomoko Kadowaki, Akira Takemoto | 1997-01-21 |