Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689521 | Semiconductor laser light source unit | — | 1997-11-18 |
| 5671305 | Optical branching and coupling device using an aspherical lens | Haruo Tanaka | 1997-09-23 |
| 5661581 | Optical communication unit | Masato Mushiage, Yuta Tezen, Kenji Okada | 1997-08-26 |