Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823107 | Method and device for optical amplification | Shinichirou Muro, Yasushi Sugaya | 2004-11-23 |
| 6747790 | Optical amplifier for amplifying multi-wavelength light | Miki Onaka, Yasushi Sugaya, Norifumi Shukunami, Manabu Watanabe | 2004-06-08 |
| 6741390 | Variable wavelength light source apparatus and optical amplifier using same | Miki Onaka, Hiroshi Onaka | 2004-05-25 |
| 6738184 | Optical amplifier for amplifying multi-wavelength light | Yasushi Sugaya, Yoshihito Onoda, Keiko Sasaki | 2004-05-18 |
| 6683712 | Optical amplification apparatus using Raman amplification | Tomoto Tanaka, Miki Onaka, Yasushi Sugaya | 2004-01-27 |