Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6823107 | Method and device for optical amplification | Shinichirou Muro, Etsuko Hayashi | 2004-11-23 |
| 6768578 | Optical amplifier for amplifying a wavelength division multiplexed (WDM) light including light in different wavelength bands | Susumu Kinoshita | 2004-07-27 |
| 6747790 | Optical amplifier for amplifying multi-wavelength light | Miki Onaka, Etsuko Hayashi, Norifumi Shukunami, Manabu Watanabe | 2004-06-08 |
| 6738182 | Optical fiber amplifier | Shinya Inagaki, Norifumi Shukunami, Manabu Watanabe, Hisashi Takamatsu, Keiko Sasaki +3 more | 2004-05-18 |
| 6738184 | Optical amplifier for amplifying multi-wavelength light | Etsuko Hayashi, Yoshihito Onoda, Keiko Sasaki | 2004-05-18 |
| 6683712 | Optical amplification apparatus using Raman amplification | Tomoto Tanaka, Miki Onaka, Etsuko Hayashi | 2004-01-27 |