Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9906403 | Slave station device, master station device, optical communication system, and malfunction detection method | Takashi Nishitani | 2018-02-27 |
| 9768862 | Slave station apparatus, master station apparatus, control device, communication system, and wavelength switching method | Takashi Nishitani | 2017-09-19 |
| 9712241 | Communication system, master station device, slave station device, control unit, and communication control method | Koshi Sugimura | 2017-07-18 |
| 9270406 | Communication method, optical communication system, station-side optical-line terminal apparatus, and user-side optical-line terminal apparatus | Yukio Hirano | 2016-02-23 |
| 9240854 | Communication system, station-side communication device, user-side communication device, communication method, and control device | Fumihiko Tano, Masaki Tanaka | 2016-01-19 |
| 9130677 | Communication system, station-side optical line terminating apparatus, user-side optical line terminating apparatus, control apparatus, and communication method | Masaki Tanaka, Daisuke Ito | 2015-09-08 |
| 9106984 | PON system, subscriber-side terminal apparatus, station-side terminal apparatus, and power saving method | Kaori Mie, Koshi Sugimura | 2015-08-11 |
| 8995830 | Communication system, optical network unit, optical line terminal, control device, and communication control method | Takashi Kikuzawa | 2015-03-31 |
| 8934770 | Communication system, station-side optical line terminating apparatus, user-side optical line terminating apparatus, control apparatus, and communication method | Masaki Tanaka, Daisuke Ito | 2015-01-13 |
| 8774621 | Communication line switching method, communication apparatus, station-side communication apparatus, communication system, and control unit | — | 2014-07-08 |
| 8767745 | Communication device, communication system, and method of allocating bandwidth | Takashi Nishitani, Masaki Tanaka | 2014-07-01 |
| 8687960 | Communication method, optical communication system, station-side optical-line terminal apparatus, and user-side optical-line terminal apparatus | Yukio Hirano | 2014-04-01 |
| 8615169 | PON system and redundancy method | Kaori Mie, Yoshifumi Hotta, Seiji Kozaki | 2013-12-24 |
| 8565601 | Communication method for optical communication system, optical communication system, slave station apparatus, control device, and computer program | Kenichi Nakura, Seiji Kozaki, Daisuke Ito, Masaki Tanaka | 2013-10-22 |
| 8509619 | Communication control method, station side device, subscriber side device, and communication system | Takashi Kikuzawa, Tetsuya Yokotani | 2013-08-13 |
| 8130782 | Control system using a mini slot signal in a passive optical network | Yoshihiro Asashiba, Toshikazu Yoshida, Seiji Kozaki | 2012-03-06 |
| 7653080 | Station side communication device | Michiya Takemoto, Masaki Tanaka, Ken Murakami | 2010-01-26 |
| 7496294 | Optical multi-branch communication system | Michiya Takemoto, Toshikazu Yoshida, Yoshihiro Asashiba, Hiroshi Ichibangase, Seiji Kozaki +1 more | 2009-02-24 |
| 7443874 | Control system using a mini slot signal in a passive optical network | Yoshihiro Asashiba, Toshikazu Yoshida, Seiji Kozaki | 2008-10-28 |
| 7403518 | Packet transmission system, packet transmission method, packet transmission program, and recording medium on which the recorded program is recorded | Mitsuru Tsuchida, Yoshihiro Asashiba, Ryusuke Kawate, Eiichi Horiuchi, Michiya Takemoto | 2008-07-22 |
| 7317688 | Optical communication system with dynamic bandwidth allocation | Toshikazu Yoshida, Tetsuya Yokotani, Seiji Kozaki | 2008-01-08 |
| 7209443 | Bandwidth updating method and bandwidth updating apparatus | Toshikazu Yoshida, Tetsuya Yokotani | 2007-04-24 |