Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6747790 | Optical amplifier for amplifying multi-wavelength light | Miki Onaka, Yasushi Sugaya, Etsuko Hayashi, Manabu Watanabe | 2004-06-08 |
| 6738182 | Optical fiber amplifier | Shinya Inagaki, Manabu Watanabe, Hisashi Takamatsu, Keiko Sasaki, Tomoaki Takeyama +3 more | 2004-05-18 |