Issued Patents All Time
Showing 1–25 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9019593 | Optical amplification apparatus | Setsuo Yoshida, Susumu Kinoshita, Goji Nakagawa, Yutaka Kai, Kyosuke Sone +1 more | 2015-04-28 |
| 8965219 | Repeater, relay method and optical transmission system | Kyosuke Sone, Susumu Kinoshita | 2015-02-24 |
| 8705168 | Signal light monitoring apparatus, optical amplification apparatus and optical reception apparatus, and signal light monitoring method | Masahiro Yuki, Kentaro Nakamura | 2014-04-22 |
| 8571058 | Terminal apparatus, data transmission system and data transmission method | Kyosuke Sone, Susumu Kinoshita | 2013-10-29 |
| 8463135 | Relay apparatus, signal processing apparatus and optical communication system | Kyosuke Sone, Yutaka Kai, Susumu Kinoshita | 2013-06-11 |
| 8320772 | Optical transmission apparatus | Hiroki Ooi, Daisuke Tanimura, Hirotoshi Kodaka | 2012-11-27 |
| 8265485 | Optical transmission system and method for chromatic dispersion compensation | Kantaro Nakamura, Hiroki Ooi | 2012-09-11 |
| 8213798 | Optical transmission apparatus, wavelength division multiplexing optical communication system and optical transmission method | Hiroki Ooi, Hiroshi Onaka | 2012-07-03 |
| 8203781 | Signal light monitoring apparatus, optical amplification apparatus and optical reception apparatus, and signal light monitoring method | Masahiro Yuki, Kentaro Nakamura | 2012-06-19 |
| 8086109 | Polarization multiplexed optical transmitting and receiving apparatus | Masahiro Yuki, Kentaro Nakamura | 2011-12-27 |
| 7936993 | Chromatic dispersion compensating apparatus | Hiroki Ooi, Takashi Iwabuchi, Takafumi Terahara, Junichi Kumasako, Tomoo Takahara | 2011-05-03 |
| 7925171 | Optical transmission apparatus | Hiroki Ooi, Daisuke Tanimura, Hirotoshi Kodaka | 2011-04-12 |
| 7885545 | Dispersion compensation method and compensation node | Hiroki Ooi, Akira Miura, Kentaro Nakamura | 2011-02-08 |
| 7860408 | Interferometer for demodulating differential M-phase shift keying signal | Akihiko Isomura, Jens Rasmussen, Takafumi Terahara, Kentaro Nakamura, Takeshi Hoshida +7 more | 2010-12-28 |
| 7853152 | Signal regeneration device, optical receiver, and signal processing method | Masato Nishihara, Tomoo Takahara | 2010-12-14 |
| 7751706 | Chromatic dispersion compensating apparatus | Hiroki Ooi, Takashi Iwabuchi, Takafumi Terahara, Junichi Kumasako, Tomoo Takahara | 2010-07-06 |
| 7616900 | Optical signal degradation compensator | Akihiko Isomura, Jens Rasmussen | 2009-11-10 |
| 7616893 | Wavelength division multiplexing optical repeating transmission method and repeating apparatus | Hiroki Ooi, Takashi Iwabuchi, Takafumi Terahara | 2009-11-10 |
| 7613397 | Wavelength division multiplexing optical transmission system and wavelength dispersion compensation unit | Kentaro Nakamura, Hiroki Ooi | 2009-11-03 |
| 7613366 | Polarization mode dispersion compensator and polarization mode dispersion compensating method | Jens Rasmussen, Akihiko Isomura | 2009-11-03 |
| 7583895 | Polarization scrambler, optical add/drop multiplexer, optical route switching apparatus and wavelength division multiplexing optical transmission system | Kentaro Nakamura, Masahiro Yuki, Takeshi Hoshida | 2009-09-01 |
| 7480459 | Wavelength division multiplexing transmission system | Kentaro Nakamura, Hiroki Ooi | 2009-01-20 |
| 7466920 | Chromatic dispersion compensating apparatus | Hiroki Ooi, Takashi Iwabuchi, Takafumi Terahara, Junichi Kumasako, Tomoo Takahara | 2008-12-16 |
| 7433599 | Automatic dispersion compensation device and compensation method | Tomoo Takahara, Hiroki Ooi | 2008-10-07 |
| 7389049 | Chromatic dispersion compensation controlling system | Tomoo Takahara, Hiroki Ooi | 2008-06-17 |