Issued Patents All Time
Showing 1–25 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10256903 | Network controller and signal quality estimating method | Shoichiro Oda, Takeshi Hoshida, Hisao Nakashima, Hiroki Oi | 2019-04-09 |
| 10230462 | Optical transmission characteristic measurement device and method | Shoichiro Oda, Toru Katagiri, Satoru Okano, Masatake Miyabe | 2019-03-12 |
| 10230463 | Transmission device and method for measuring optical transmission characteristics | GUOXIU HUANG, Shoichiro Oda, Zhenning Tao, Setsuo Yoshida, Kyosuke Sone | 2019-03-12 |
| 10200132 | Optical communication system, transmission station, and method of optical communication | Kyosuke Sone, Goji Nakagawa | 2019-02-05 |
| 10187172 | Optical transport apparatus and optical-wavelength defragmenting method | Goji Nakagawa, Kyosuke Sone | 2019-01-22 |
| 10158422 | Apparatus and method for estimating optical transmission performance | Shoichiro Oda, Masatake Miyabe, Setsuo Yoshida, Toru Katagiri, Goji Nakagawa +2 more | 2018-12-18 |
| 10020878 | Optical signal-to-noise ratio monitor and method for measuring optical signal to-noise ratio | Shoichiro Oda, Hiroki Oi, Satoru Okano, Yoichi Akasaka, Jeng-Yuan Yang | 2018-07-10 |
| 9917639 | Optical signal quality monitoring apparatus, optical signal quality monitoring method and optical repeater | Shoichiro Oda | 2018-03-13 |
| 9906296 | Network controller and signal quality estimating method | Shoichiro Oda, Takeshi Hoshida, Hisao Nakashima, Hiroki Oi | 2018-02-27 |
| 9887774 | Device and method for monitoring transmission characteristics | GUOXIU HUANG, Shoichiro Oda, Setsuo Yoshida | 2018-02-06 |
| 9847837 | Optical line termination, communication system, and communication control method | Kyosuke Sone | 2017-12-19 |
| 9838148 | Optical receiver and superimposed signal detecting method | Goji Nakagawa, Tomohiro Yamauchi, GUOXIU HUANG, Setsuo Yoshida, Shoichiro Oda +1 more | 2017-12-05 |
| 9755733 | Optical communication system and optical communication method | — | 2017-09-05 |
| 9705629 | Transmitting device and transmission control method | Kyosuke Sone | 2017-07-11 |
| 9705604 | Communication device and wavelength adjustment method | Kyosuke Sone, Setsuo Yoshida, Goji Nakagawa, Shoichiro Oda | 2017-07-11 |
| 9686016 | Optical transmission apparatus, optical transmission system, and control method of optical transmission system | Shoichiro Oda, Kentaro Nakamura | 2017-06-20 |
| 9560531 | Joint wireless and fixed network optimization for heterogeneous cellular networks | Rui Chu Chang, Ryan PETTIJOHN, Hiroyuki Seki | 2017-01-31 |
| 9559771 | Optical transmission device, node device, optical transmission method, and optical transmission system | Shoichiro Oda, Takeshi Hoshida | 2017-01-31 |
| 9496953 | Device and method for monitoring optical signal quality, and optical transmission device | Goji Nakagawa | 2016-11-15 |
| 9413455 | Apparatus and method for creating calibration coefficient used to monitor optical signal-to-noise ratio | Shoichiro Oda, Jeng-Yuan Yang | 2016-08-09 |
| 9363022 | Optical transmission apparatus and analog-to-digital conversion apparatus | — | 2016-06-07 |
| 9350479 | Apparatus and method for monitoring wavelength tunable optical filter | Kyosuke Sone, Goji Nakagawa, Shoichiro Oda | 2016-05-24 |
| 9225459 | Optical transmission system, optical transmission apparatus, signal conditioning program, and signal conditioning method | Shoichiro Oda, Takeshi Hoshida, Hisao Nakashima, Takahito Tanimura | 2015-12-29 |
| 9185474 | Wavelength path switching method, optical communication system, optical communication device, optical repeater, and network management device | Kyosuke Sone, Takeshi Hoshida, Toshiki Tanaka, Shoichiro Oda | 2015-11-10 |
| 9143242 | Optical signal demodulator, optical signal demodulating method, and optical add-drop multiplexer | Goji Nakagawa, Kyosuke Sone, Shoichiro Oda | 2015-09-22 |