Issued Patents 2005
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6922282 | Optical amplifier for amplifying multi-wavelength light | Yasushi Sugaya | 2005-07-26 |
| 6891661 | Optical amplifier with pump light source control for Raman amplification | Etsuko Hayashi, Tomoto Tanaka, Yasushi Sugaya | 2005-05-10 |
| 6862133 | Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification | Yasushi Sugaya, Etsuko Hayashi | 2005-03-01 |
| 6847478 | Optical amplification apparatus using Raman amplification | Tomoto Tanaka, Etsuko Hayashi, Yasushi Sugaya | 2005-01-25 |