Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6491397 | Illumination optical system and projector using the same | Yasunori Ogawa, Hidemasa Yamakawa | 2002-12-10 |
| 6384965 | Wavelength division multiplexing optical fiber amplifier | — | 2002-05-07 |