Issued Patents All Time
Showing 1–25 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10471683 | Electronic device | Kazuyuki Wakabayashi | 2019-11-12 |
| 10416407 | Optical communications device having a plate-shaped flexible printed circuit with metallic pattern | Yuki SAKURAI | 2019-09-17 |
| 9869824 | Optical adapter | Yukiko Sakai | 2018-01-16 |
| 9614345 | Arrayed optical amplifier and optical transmission device | — | 2017-04-04 |
| 9544087 | Amplifying device, receiving device, and amplification method | Yoshihisa Kondo | 2017-01-10 |
| 9154227 | Port monitoring device and port monitoring method | — | 2015-10-06 |
| 9048955 | Tunable dispersion compensation device, optical reception apparatus, and method for controlling tunable dispersion compensation | — | 2015-06-02 |
| 8995828 | Optical transmission device, optical transmission system and optical transmission method | Yuichi Suzuki | 2015-03-31 |
| 8676054 | Optical transmission receiver and method for the same | Yuichi Suzuki | 2014-03-18 |
| 8571414 | Optical transmission device, transmission and reception module, optical transmission system, and wavelength dispersion compensation method in optical transmission device | — | 2013-10-29 |
| 8538264 | Dispersion compensating apparatus, dispersion compensating method, optical receiving apparatus, and optical receiving method | Masahiro Yuki, Tsukasa Takahashi, Miki Onaka, Norifumi Shukunami, Tatsuya Tsuzuki +1 more | 2013-09-17 |
| 8477030 | Optical amplifier module and dispersion compensation fiber loss detection method | Tomotaka Otani | 2013-07-02 |
| 8390798 | Wavelength dispersion measurement method and device and optical transmission system | — | 2013-03-05 |
| 8326160 | Dispersion compensation device, optical reception device, method for dispersion compensation, and method for optical reception | Makoto Murakami | 2012-12-04 |
| 8259390 | Optical amplifier apparatus | Ryuta Hoshi | 2012-09-04 |
| 8184990 | Light source wavelength control apparatus | — | 2012-05-22 |
| 8131159 | Transmission apparatus and optical transmission apparatus | — | 2012-03-06 |
| 7911685 | Control of a light source providing excitation light | Kenichi Sasaki, Yuji Tamura | 2011-03-22 |
| 7813647 | Chromatic dispersion compensation control method and apparatus | — | 2010-10-12 |
| 7519300 | Optical output control method for use in optical transmission node and optical output control apparatus for use in the same | Masaki Sato | 2009-04-14 |
| 7454108 | Multimode fiber transmission system | Masaki Satoh | 2008-11-18 |
| 7324189 | Light power adjusting method, optical transmitter, and optical receiver | — | 2008-01-29 |
| 7251072 | Optical transmission system | Tsukasa Takahashi, Eiji Ishikawa, Hiroto Ikeda, Hiroyuki Deguchi | 2007-07-31 |
| 7142782 | Noise light elimination method, noise light elimination apparatus and optical transmission system, using stimulated brillouin scattering | — | 2006-11-28 |
| 6839640 | Method and apparatus for diagnosing damages of conductive materials | — | 2005-01-04 |