Issued Patents All Time
Showing 26–50 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7848659 | Optical transmitting apparatus and optical communication system | Akira Miura, Kentaro Nakamura, Hiroshi Onaka, Yuichi Akiyama, Jens Rasmussen +1 more | 2010-12-07 |
| 7817923 | Optical transmitting apparatus, optical receiving apparatus, and optical communication system comprising them | Yuichi Akiyama, Takeshi Hoshida, Yutaka Kai, Kentaro Nakamura, Naoki Kuwata +3 more | 2010-10-19 |
| 7792428 | Optical add/drop multiplexer | Yuichi Akiyama, Takafumi Terahara, Jens Rasmussen, Akira Miura, Akihiko Isomura | 2010-09-07 |
| 7778553 | Optical transmitter | Masahiro Yuki, Kentaro Nakamura, Masato Nishihara | 2010-08-17 |
| 7769299 | Chromatic dispersion monitoring method and chromatic dispersion monitoring apparatus, and optical transmission system | Akira Miura, Hiroshi Onaka | 2010-08-03 |
| 7751706 | Chromatic dispersion compensating apparatus | Takashi Iwabuchi, Takafumi Terahara, Junichi Kumasako, George Ishikawa, Tomoo Takahara | 2010-07-06 |
| 7734192 | Control apparatus and control method for optical modulator | Yuichi Akiyama | 2010-06-08 |
| 7729619 | Dispersion compensation controlling apparatus and method for searching for amount of dispersion control | Kiyotoshi Noheji | 2010-06-01 |
| 7725032 | Optical transmission apparatus | Miki Onaka, Yasushi Sugaya | 2010-05-25 |
| 7720383 | Optical transmission apparatus having OADM function | Yuichi Akiyama, Takafumi Terahara | 2010-05-18 |
| 7711270 | Optical node and optical add/drop multiplexer | Takafumi Terahara, Jens Rasmussen, Akira Miura, Akihiko Isomura, Yuichi Akiyama | 2010-05-04 |
| 7620321 | Optical transmitting apparatus, method of increasing the number of paths of the apparatus, and optical switch module for increasing the number of paths of the apparatus | Akira Miura, Takeshi Hoshida, Takafumi Terahara | 2009-11-17 |
| 7616893 | Wavelength division multiplexing optical repeating transmission method and repeating apparatus | Takashi Iwabuchi, Takafumi Terahara, George Ishikawa | 2009-11-10 |
| 7613397 | Wavelength division multiplexing optical transmission system and wavelength dispersion compensation unit | Kentaro Nakamura, George Ishikawa | 2009-11-03 |
| 7603007 | Quadrature phase-shift keying modulator and phase shift amount controlling method for the same | Takafumi Terahara, Takeshi Hoshida, Kentaro Nakamura, Yuichi Akiyama, Jens Rasmussen +1 more | 2009-10-13 |
| 7519296 | Optical demultiplexing method and optical multiplexing method, and optical transmission apparatus using same | Akira Miura, Hiroshi Nakamoto | 2009-04-14 |
| 7480459 | Wavelength division multiplexing transmission system | Kentaro Nakamura, George Ishikawa | 2009-01-20 |
| 7477848 | Optical receiving apparatus and method for controlling the optical receiving apparatus | Akira Miura, Takeshi Hoshida | 2009-01-13 |
| 7466920 | Chromatic dispersion compensating apparatus | Takashi Iwabuchi, Takafumi Terahara, Junichi Kumasako, George Ishikawa, Tomoo Takahara | 2008-12-16 |
| 7433599 | Automatic dispersion compensation device and compensation method | Tomoo Takahara, George Ishikawa | 2008-10-07 |
| 7418211 | Control apparatus and control method for optical modulator | Yuichi Akiyama | 2008-08-26 |
| 7389049 | Chromatic dispersion compensation controlling system | Tomoo Takahara, George Ishikawa | 2008-06-17 |
| 7336870 | Optical transmission system | Akira Miura, Takafumi Terahara, Ichiro Nakajima | 2008-02-26 |
| 7321736 | Optical receiving station, optical communication system, and dispersion controlling method | Yuichi Akiyama, George Ishikawa | 2008-01-22 |
| 7266264 | Apparatus and method of compensating transmission property of light demultiplexer/light multiplexer | Hiroshi Nakamoto | 2007-09-04 |