Issued Patents All Time
Showing 26–50 of 68 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8737839 | Network design apparatus, method, and computer product | Yutaka Takita, Tomohiro Hashiguchi, Kazuyuki Tajima | 2014-05-27 |
| 8712235 | Transmission apparatus and network protection method | Yasuki Fujii, Ryoichi Mutoh | 2014-04-29 |
| 8687655 | Signal demultiplexer, signal multiplexer, and signal multiplexer/demultiplexer | Masahiro Shioda | 2014-04-01 |
| 8675684 | Frame generating apparatus and frame generating method | Masahiro Shioda | 2014-03-18 |
| 8665738 | Transmission apparatus and signal transmission method | Hiroyuki Honma | 2014-03-04 |
| 8625996 | Optical transmitter, optical transmission method, and wavelength-selective variable delayer | Toshiki Tanaka, Hisao Nakashima, Takeshi Hoshida, Hiroki Ooi, Akira Miura | 2014-01-07 |
| 8594508 | Optical transmission system | Hisao Nakashima, Takeshi Hoshida, Takahito Tanimura, Shoichiro Oda | 2013-11-26 |
| 8588256 | Transmission apparatus and signal mapping method | Hiroyuki Kitajima | 2013-11-19 |
| 8571073 | Frame mapping apparatus and frame mapping method | Toshiaki Ohkubo, Hiroyuki Honma, Hiromichi Makishima, Hiroyuki Kitajima | 2013-10-29 |
| 8406626 | Optical-network design apparatus | Yutaka Takita, Tomohiro Hashiguchi, Kazuyuki Tajima | 2013-03-26 |
| 8380077 | Chromatic dispersion compensation design system and chromatic dispersion compensation design method | Yutaka Takita, Kazuyuki Tajima, Tomohiro Hashiguchi | 2013-02-19 |
| 8351795 | Optical transmission system and optical transmission method | Hisao Nakashima, Takeshi Hoshida, Takahito Tanimura, Shoichiro Oda | 2013-01-08 |
| 8345538 | Apparatus and method for finding a pair of disjoint paths in a communication network | Tomohiro Hashiguchi, Kazuyuki Tajima, Yutaka Takita | 2013-01-01 |
| 8315161 | Network design device and network design method | Kazuyuki Tajima, Tomohiro Hashiguchi, Yutaka Takita | 2012-11-20 |
| 8306439 | Communication apparatus and signal reception method | Naoki Kuwata, Tadashi Ikeuchi | 2012-11-06 |
| 8275259 | Method for determining value of chromatic dispersion compensation | Tomohiro Hashiguchi, Yutaka Takita, Kazuyuki Tajima | 2012-09-25 |
| 8270829 | Apparatus and method for designing network | Tomohiro Hashiguchi, Kazuyuki Tajima, Yutaka Takita | 2012-09-18 |
| 8249108 | Frame generating method | Osamu Takeuchi | 2012-08-21 |
| 8190031 | Optical network design apparatus and dispersion compensation design method | Kazuyuki Tajima, Tomohiro Hashiguchi, Yutaka Takita | 2012-05-29 |
| 8121481 | Chromatic dispersion compensation designing method in optical network and a system thereof | Tomohiro Hashiguchi, Yutaka Takita, Kazuyuki Tajima, Motoyoshi Sekiya, Takashi Toyomaki | 2012-02-21 |
| 8078701 | Network design and determination of the arrangement of optical transmission devices in respective network stations | Tomohiro Hashiguchi, Kazuyuki Tajima, Takashi Toyomaki | 2011-12-13 |
| 8068732 | Network design apparatus and network design method | Tomohiro Hashiguchi, Kazuyuki Tajima, Yutaka Takita | 2011-11-29 |
| 8005373 | Optical signal reception device and method of controlling optical signal reception | — | 2011-08-23 |
| 8000595 | Optical receiver, optical communication device, and optical signal receiving method | — | 2011-08-16 |
| 7936749 | Node device for transfering supervisory control information in photonic network | Takao Naito | 2011-05-03 |