Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7460789 | Optical transmission system and method of controlling optical transmission system | Motoyoshi Sekiya, Takuya Miyashita | 2008-12-02 |
| 7254342 | Method and system for transmitting information in an optical communication system with low signal distortion | Olga Vassilieva, Takeshi Hoshida | 2007-08-07 |
| 6844961 | Method and apparatus for controlling Raman amplification using excitation light pulses of different wavelengths | Motoyoshi Sekiya, Ryosuke Goto | 2005-01-18 |