Issued Patents 2005
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6891661 | Optical amplifier with pump light source control for Raman amplification | Tomoto Tanaka, Yasushi Sugaya, Miki Onaka | 2005-05-10 |
| 6891662 | Optical amplifier and method for amplifying wavelength multiplexed transmission signal light | Yasushi Sugaya, Terumi Chikama, Sinya Inagaki, Norifumi Shukunami | 2005-05-10 |
| 6873455 | Optical amplification apparatus utilizing raman amplification and controlling method thereof | Yasushi Sugaya, Tomoto Tanaka | 2005-03-29 |
| 6862133 | Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification | Miki Onaka, Yasushi Sugaya | 2005-03-01 |
| 6847478 | Optical amplification apparatus using Raman amplification | Tomoto Tanaka, Miki Onaka, Yasushi Sugaya | 2005-01-25 |