Issued Patents All Time
Showing 26–50 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10749604 | Optical phase distortion compensating device and method of compensating optical phase distortion | Takeshi Hoshida | 2020-08-18 |
| 10720992 | Transmission apparatus, reception apparatus, and method for estimating characteristics of transmission line | Takahito Tanimura, Takeshi Hoshida, Shigeki Watanabe | 2020-07-21 |
| 10613455 | Automatic cleaning image forming apparatus and method of controlling image forming apparatus | Yasunari Miyazaki | 2020-04-07 |
| 10608775 | Optical transmission apparatus, optical transmission method, and optical transmission system | Shinji Komiya, Norifumi Shukunami, Makoto Hasegawa, Tomohiro Yamauchi | 2020-03-31 |
| D867957 | Wheel cap for automobile | — | 2019-11-26 |
| D867214 | Automobile, toy replica and/or other replicas | — | 2019-11-19 |
| 10429721 | Wavelength conversion device, control-light generation device, wavelength conversion method, and control-light generation method | Shigeki Watanabe, Takeshi Hoshida | 2019-10-01 |
| 10281798 | Wavelength conversion device, control-light generation device, wavelength conversion method, and control-light generation method | Shigeki Watanabe, Takeshi Hoshida | 2019-05-07 |
| 10193621 | Location measurement apparatus, light modulation converter, and light variation location measurement method | Shigeki Watanabe, Takeshi Hoshida, Takahito Tanimura | 2019-01-29 |
| D838652 | Wheel for an automobile | — | 2019-01-22 |
| D838651 | Wheel for an automobile | — | 2019-01-22 |
| 10156296 | Load driving controller | Tomohito KATO, Takeshi Dowa, Shingo Matsuda | 2018-12-18 |
| 9983619 | Image display apparatus | Atsushi YAMAWAKI, Junji Ito, Shogo Tanaka, Shinya Tanaka, Naoki SUGAMOTO +5 more | 2018-05-29 |
| 9929828 | Optical add/drop multiplexer and method for adding/dropping optical signal | Shigeki Watanabe | 2018-03-27 |
| 9857662 | Optical frequency shift device and method | Shigeki Watanabe, Takeshi Hoshida | 2018-01-02 |
| 9785520 | Computer system, storage apparatus and control method | Yuta Kajiwara, Ken Tokoro | 2017-10-10 |
| 9780880 | Relay device and optical network system | Shigeki Watanabe | 2017-10-03 |
| 9746699 | Optical frequency shifter, single sideband modulator, and light insertion and branch apparatus | — | 2017-08-29 |
| 9634787 | Optical add-drop multiplexer | Takahito Tanimura, Shigeki Watanabe | 2017-04-25 |
| 9450699 | Optical drop device, optical drop method, and optical add device | Shigeki Watanabe | 2016-09-20 |
| 9148228 | Optical signal transmitting device, optical signal transmitting method, frequency fluctuation suppressing device and frequency fluctuation suppressing system | Shigeki Watanabe | 2015-09-29 |
| 9106354 | Optical frequency-division multiplexer, optical communication system, and optical frequency-division multiplexing method | Shigeki Watanabe | 2015-08-11 |
| 9106359 | Optical network system, optical multiplexing apparatus, and receiving apparatus | Shigeki Watanabe | 2015-08-11 |
| 9088383 | Transmitting apparatus, receiving apparatus, optical frequency division multiplex transmission system, and optical signal communication method | Toshiki Tanaka, Masato Nishihara, Tomoo Takahara, Yutaka Kai, Shigeki Watanabe | 2015-07-21 |
| 9077470 | Optical transmission system using cross phase modulation | Yutaka Kai, Shigeki Watanabe, Ryou Okabe | 2015-07-07 |