Issued Patents All Time
Showing 25 most recent of 43 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12375201 | Optical amplifier, optical amplifier controlling method, and optical transmission system | Keiichi Matsumoto, Hitoshi Takeshita, Emmanuel Le Taillandier De Gabory | 2025-07-29 |
| 12228647 | Distance-measurement apparatus and distance-measurement method | — | 2025-02-18 |
| 12170544 | Optical signal processing circuit, optical reception apparatus, and optical signal processing method | Masaki Sato, Junichi Abe | 2024-12-17 |
| 12154258 | Surface abnormality detection device and system | Yoshimasa Ono, Akira Tsuji, Junichi Abe | 2024-11-26 |
| 12146959 | Monitoring control device, monitoring system, monitoring control method, and non-transitory computer-readable medium with program stored therein | Akira Tsuji | 2024-11-19 |
| 12095502 | Communication device, communication controlling method, non-transitory computer-readable medium, and optical communication system | Yohei Hasegawa, Shigeyuki Yanagimachi | 2024-09-17 |
| 12072243 | Monitoring device, monitoring method, and optical transmission system | Keiichi Matsumoto, Emmanuel Le Taillandier De Gabory | 2024-08-27 |
| 11754713 | Range finding apparatus and control method | Junichi Abe | 2023-09-12 |
| 11719817 | Distance-measuring apparatus and control method | Junichi Abe | 2023-08-08 |
| 11632184 | Wavelength-division multiplexing optical transmission system, wavelength-division multiplexing optical transmission method, and non-transitory computer readable medium | Junichi Abe, Masaki Sato | 2023-04-18 |
| 11561283 | Distance measurement apparatus, distance measurement method and program | Akira Tsuji, Junichi Abe | 2023-01-24 |
| 11435477 | Distance measurement based on difference of two beat signals generated from same reference light | — | 2022-09-06 |
| 10819443 | Optical communications system and optical frequency control method | — | 2020-10-27 |
| 10790901 | Reception device, transmission device, optical communication system, and optical communication method | — | 2020-09-29 |
| 10735103 | Reception device, transmission device, optical communication system and optical communication method | — | 2020-08-04 |
| 10623100 | Digital optical communication system, method for controlling digital optical communication system, and recording medium | — | 2020-04-14 |
| 10355787 | Digital optical receiver and optical communication system using the same | — | 2019-07-16 |
| 10205528 | Optical transmitter and optical communication method | Emmanuel Le Taillandier De Gabory | 2019-02-12 |
| 10171177 | Digital signal processor, digital optical receiver using the same, and digital signal processing method | Wakako Yasuda | 2019-01-01 |
| 9690751 | Digital processing apparatus and digital processing method | — | 2017-06-27 |
| 9459511 | Mach-Zehnder type optical modulator, optical transmission/reception system and control method of Mach-Zehnder type optical modulator | — | 2016-10-04 |
| 9425898 | Optical transmission system, optical phase modulator, and optical modulation method | — | 2016-08-23 |
| 9413467 | Optical transmitter, optical transmission/reception system, and drive circuit | — | 2016-08-09 |
| 9319145 | Optical transmitter, optical transmission/reception system, and drive circuit | — | 2016-04-19 |
| 9041570 | Analog-to-digital converter and analog-to-digital conversion method | — | 2015-05-26 |