Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6930823 | Optical transmission method and optical transmission system utilizing Raman amplification | Hiroshi Nakamoto, Takao Naito, Toshiki Tanaka | 2005-08-16 |
| 6882466 | Optical amplifier | Takao Naito | 2005-04-19 |