Issued Patents 2004
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6819477 | Raman amplifier module and optical transmission system using the same | Masayuki Nishimura, Masaaki Hirano | 2004-11-16 |
| 6819829 | Optical communication system | Masayuki Nishimura | 2004-11-16 |
| 6813065 | Raman amplifier and optical communication system | Motoki Kakui, Shinji Ishikawa, Masashi Onishi | 2004-11-02 |
| 6806999 | Raman amplification pumping module, Raman amplifier, and optical communication system | Motoki Kakui, Masayuki Nishimura | 2004-10-19 |
| 6775055 | Raman amplifier | Kiyotaka Murashima | 2004-08-10 |