Issued Patents All Time
Showing 76–95 of 95 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6411431 | Optical amplifier for amplifying light in a long wavelength band | Susumu Kinoshita, Hiroshi Onaka | 2002-06-25 |
| 6400499 | Multi-wavelength light amplifier | Miki Takeda, Susumu Kinoshita, Terumi Chikama | 2002-06-04 |
| 6388801 | Optical amplification apparatus utilizing Raman amplification and controlling method thereof | Tomoto Tanaka, Etsuko Hayashi | 2002-05-14 |
| 6377395 | 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 | 2002-04-23 |
| 6369938 | Multi-wavelength light amplifier | Miki Takeda, Susumu Kinoshita, Terumi Chikama | 2002-04-09 |
| 6292289 | Method, device, and system for transmitting a supervisory optical signal | Terumi Chikama | 2001-09-18 |
| 6288834 | Optical amplifier for amplifying light in a long wavelength band | Susumu Kinoshita, Hiroshi Onaka | 2001-09-11 |
| 6198572 | 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 | 2001-03-06 |
| 6178037 | Optical amplifying apparatus | Susumu Kinoshita, Hiroshi Onaka, Terumi Chikama | 2001-01-23 |
| 6157481 | Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of the channels are varied | Susumu Kinoshita | 2000-12-05 |
| 6144485 | 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 | 2000-11-07 |
| 6055092 | Multi-wavelength light amplifier | Miki Takeda, Susumu Kinoshita, Terumi Chikama | 2000-04-25 |
| 6038061 | Doped fiber amplifier using bidirectional pumping with pump lights having different frequencies | — | 2000-03-14 |
| 6025947 | 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 | 2000-02-15 |
| 5995274 | Multi-wavelength light amplifier | Susumu Kinoshita | 1999-11-30 |
| 5995275 | Doped fiber amplifier using bidirectional pumping with pump lights having different frequencies | — | 1999-11-30 |
| 5966237 | 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 | 1999-10-12 |
| 5903385 | Remotely pumping type multi-wavelength light transmission system | Terumi Chikama | 1999-05-11 |
| 5812710 | Apparatus and method for optical equalization and amplification | — | 1998-09-22 |
| 5737118 | Optical amplifying apparatus | Susumu Kinoshita, Hiroshi Onaka, Terumi Chikama | 1998-04-07 |