Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6466361 | Converging device and light source module, laser device and optical signal amplifier using such converging device | Hitoshi Yamaura | 2002-10-15 |
| 6459068 | Laser device, laser machining device and optical amplifier | Hitoshi Yamaura | 2002-10-01 |