Issued Patents All Time
Showing 51–54 of 54 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5861973 | Optical amplifier for collectively amplifying optical signals having a plurality of multiplexed wavelengths | Shinya Inagaki | 1999-01-19 |
| 5778129 | Doped optical fiber having core and clad structure for increasing the amplification band of an optical amplifier using the optical fiber | Shinya Inagaki | 1998-07-07 |
| 5764404 | Wavelength-division-multiplexing optical amplifier | Kazuo Yamane, Michikazu Shima, Yumiko Kawasaki, Kenji Tagawa, Shinya Inagaki | 1998-06-09 |
| 5745283 | Method and apparatus for controlling optical amplifier used for optically amplifying wavelength-division multiplexed signal | Shinya Inagaki, Kenji Tagawa, Nobuhiro Fukushima | 1998-04-28 |