Issued Patents 2005
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6930824 | Optical amplifier which compensates for dispersion of a WDM optical signal | George Ishikawa, Hideyuki Miyata, Hiroshi Onaka, Kazue Otsuka | 2005-08-16 |
| 6844961 | Method and apparatus for controlling Raman amplification using excitation light pulses of different wavelengths | Kaori Odate, Ryosuke Goto | 2005-01-18 |
| 6839162 | Optical amplifying apparatus and optical communication system | Hiroaki Tomofuji | 2005-01-04 |