Issued Patents 2005
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6975447 | Optical fiber amplifier and dispersion compensating fiber module for optical fiber amplifier | — | 2005-12-13 |
| 6943940 | Optical amplifier for amplifying a wavelength division multiplexed (WDM) light including light in different wavelength bands | Yasushi Sugaya | 2005-09-13 |
| 6897396 | Switch gear and method of manufacturing thereof | Yoshihiro Ito, Satoshi Makishima, Hiroki Sekiya, Masaru Miyagawa, Toshio Shimizu | 2005-05-24 |
| 6891663 | Optical amplifier for amplifying a wavelength division multiplexed (WDM) light including light in different wavelength bands | Yasushi Sugaya | 2005-05-10 |
| 6879434 | Distributed raman amplifier for optical network and method | Yasuhiko Aoki | 2005-04-12 |
| 6873457 | Optical amplifier, excitation light source control method for use in optical amplifier, and optical amplifier control method | Terumi Chikama | 2005-03-29 |
| 6865016 | Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied | Yasushi Sugaya | 2005-03-08 |
| 6842562 | Optical add/drop node and method | Koji Takeguchi | 2005-01-11 |