Issued Patents All Time
Showing 26–50 of 61 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8909063 | Optical QPSK signal regeneration and amplification | Jeng-Yuan Yang, Motoyoshi Sekiya, Inwoong Kim | 2014-12-09 |
| 8873950 | Method and system of automatic regeneration of optical signals | — | 2014-10-28 |
| 8798454 | Method and system for automatic lane negotiation in an optical network | — | 2014-08-05 |
| 8705167 | System and method for compensating for polarization dependent loss | — | 2014-04-22 |
| 8543006 | System and method for reducing polarization dependent loss | Olga Vassilieva | 2013-09-24 |
| 8437074 | Raman amplifier, optical repeater, and Raman amplification method | Yoshihiro Emori, Shu Namiki | 2013-05-07 |
| 8284479 | Optical amplifier card with pluggable pump laser modules | Takao Naito | 2012-10-09 |
| 8107815 | System and method for communicating wireless data utilizing a passive optical network | Takao Naito, Satoshi Mizutani | 2012-01-31 |
| 7742224 | Optical amplification in the 850 nm window | — | 2010-06-22 |
| 7692852 | Raman amplifier, optical repeater, and Raman amplification method | Yoshihiro Emori, Shu Namiki | 2010-04-06 |
| 7623798 | Polarization mode dispersion mitigation of multiple optical communication channels | — | 2009-11-24 |
| 7565083 | Wavelength shifting in an optical network route to mitigate distortion in different types of fiber | — | 2009-07-21 |
| 7548368 | Raman amplifier, optical repeater, and raman amplification method | Yoshihiro Emori, Shu Namiki | 2009-06-16 |
| 7352973 | Adding wavelengths to an optical communication network | Ian M. White | 2008-04-01 |
| 7274503 | Distributed raman amplification | — | 2007-09-25 |
| 7158287 | Distributed and discrete amplification of optical signals | — | 2007-01-02 |
| 7088498 | Optical amplification of CWDM channels using optical amplifiers having fluoride-based optical fiber | — | 2006-08-08 |
| 7039283 | Optical amplification producing wider total gain bandwidth | — | 2006-05-02 |
| 7038839 | Optical signal amplification using multiple backward-pumping systems | — | 2006-05-02 |
| 6996308 | Polarization mode dispersion outage mitigation | — | 2006-02-07 |
| 6876488 | Discrete amplification of an optical signal | — | 2005-04-05 |
| 6795608 | Optical communication link | Tamotsu Kamiya | 2004-09-21 |
| 6775057 | Raman amplifier, optical repeater, and raman amplification method | Yoshihiro Emori, Shu Namiki | 2004-08-10 |
| 6654162 | Raman amplifier, optical repeater, and Raman amplification method | Yoshihiro Emori, Shu Namiki | 2003-11-25 |
| 6646787 | Raman amplifier, optical repeater, and Raman amplification method | Yoshihiro Emori, Shu Namiki | 2003-11-11 |