Issued Patents 2003
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6646791 | 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 | 2003-11-11 |
| 6624926 | Optical amplifier with pump light source control for raman amplification | Etsuko Hayashi, Tomoto Tanaka, Miki Onaka | 2003-09-23 |
| 6577437 | Optical amplification apparatus utilizing Raman amplification and controlling method thereof | Tomoto Tanaka, Etsuko Hayashi | 2003-06-10 |
| 6510000 | Optical amplifier for wide band raman amplification of wavelength division multiplexed (WDM) signal lights | Miki Onaka, Tomoto Tanaka, Etsuko Hayashi, Susumu Kinoshita | 2003-01-21 |
| 6507431 | Remotely pumping type multi-wavelength light transmission system | Terumi Chikama | 2003-01-14 |