Issued Patents All Time
Showing 25 most recent of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12237555 | Waveguide, method of manufacturing waveguide and antenna | Seiji Nishi, Takuro Sato, Kazuhiko Tamesue | 2025-02-25 |
| 12153122 | Foreign-object detection system | — | 2024-11-26 |
| 12050271 | TOF camera | Keizo Inagaki, Toshimasa Umezawa, Naokatsu Yamamoto | 2024-07-30 |
| 11271653 | In-vehicle optical network | Ryo Takahashi, Naokatsu Yamamoto | 2022-03-08 |
| 10911153 | High-speed photodetector array | Toshimasa Umezawa, Takahide Sakamoto, Atsushi Kanno, Naokatsu Yamamoto | 2021-02-02 |
| 10634782 | Extravisual obstacle detecting system | Masaru FUKUMITSU | 2020-04-28 |
| 10608748 | Common mode rejection ratio measurement device for coherent optical receiver, and measurement method | Keizo Inagaki, Atsushi Kanno, Naokatsu Yamamoto | 2020-03-31 |
| 10598964 | Method for generating optical signal, and device for generating optical signal | Atsushi Kanno | 2020-03-24 |
| 9503186 | Space division multiplexing apparatus including multi-core fiber and selfhomodyne detection method | Yoshinari Awaji, Ben Puttnam, Atsushi Kanno | 2016-11-22 |
| 9250455 | Optical modulator | Youichi Hosokawa, Kaoru Higuma, Atsushi Kanno | 2016-02-02 |
| 9231638 | High-speed communication control system | Atsushi Kanno | 2016-01-05 |
| 8867042 | Method for evaluating characteristic of optical modulator having mach-zehnder interferometer | Akito Chiba, Junichiro Ichikawa, Masaaki Sudo | 2014-10-21 |
| 8824895 | Radio-on-fiber unit and radio-on-fiber system | Satoshi Shinada, Shinya Nakajima | 2014-09-02 |
| 8693005 | Method for evaluating characteristics of optical modulator having Mach-Zehnder interferometers | Shinya Nakajima, Satoshi Shinada | 2014-04-08 |
| 8682177 | Super high speed optical frequency sweeping technology | Takahide Sakamoto, Masahiro Tsuchiya | 2014-03-25 |
| 8676060 | Quadrature amplitude modulation signal generating device | Takahide Sakamoto, Akito Chiba, Masahiro Tsuchiya | 2014-03-18 |
| 8472107 | High-speed multiplied signal generating method and device | Takahide Sakamoto, Masahiro Tsuchiya | 2013-06-25 |
| 8446591 | Method for evaluating characteristics of optical modulator having Mach-Zehnder interferometers | Shinya Nakajima, Satoshi Shinada | 2013-05-21 |
| 8351047 | Method for evaluating characteristics of optical modulator having high-precision Mach-Zehnder interferometers | Shinya Nakajima, Satoshi Shinada | 2013-01-08 |
| 8270780 | Optical switch system using optical interference | Masayuki Izutsu, Takahide Sakamoto, Masahiro Tsuchiya | 2012-09-18 |
| 8170422 | Frequency shift keying demodulator | Masayuki Izutsu | 2012-05-01 |
| 8144191 | Endoscope visual imaging and processing apparatus | Kazunori Abe | 2012-03-27 |
| 8023775 | Super flat optical frequency comb signal generator | Takahide Sakamoto, Masahiro Tsuchiya, Masayuki Izutsu | 2011-09-20 |
| 8014684 | Modulation light signal generating device and FSK modulation signal generating device | Hiroshi Harada, Masayuki Izutsu | 2011-09-06 |
| 8005371 | Multi-wavelength signal generation device and multi-wavelength light generation method | Masayuki Izutsu | 2011-08-23 |