Issued Patents 2011
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8068730 | Wavelength division multiplex signal monitoring system and wavelength division multiplex transmission device equipped with the same | Yoshito Kachita, Ichiro Nakajima, Ryosuke Goto | 2011-11-29 |
| 8064130 | Optical amplifier | Masato Nishihara, Etsuko Hayashi | 2011-11-22 |
| 8054455 | Optical amplifier provided with control function of pumping light, and optical transmission system using the same | Etsuko Hayashi, Masato Nishihara | 2011-11-08 |
| 8049955 | Optical amplification apparatus, optical communication apparatus, and optical communication method | Miki Onaka, Togo Fukushi, Masanori Kondoh, Kiyotoshi Noheji, Takashi Hayasaka | 2011-11-01 |
| 8004752 | Multi-wavelength light amplifier | Miki Takeda, Susumu Kinoshita, Terumi Chikama | 2011-08-23 |
| 7983564 | Transmission system and transmission method | Hiroki Ooi, Akira Miura, Takeshi Hoshida, Kentaro Nakamura, Ryosuke Goto | 2011-07-19 |
| 7969649 | 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 | Susumu Kinoshita | 2011-06-28 |