Issued Patents All Time
Showing 1–25 of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12375201 | Optical amplifier, optical amplifier controlling method, and optical transmission system | Keiichi Matsumoto, Hidemi Noguchi, Emmanuel Le Taillandier De Gabory | 2025-07-29 |
| 12374851 | Optical amplification apparatus and optical amplification method | Keiichi Matsumoto, Emmanuel Le Taillandier De Gabory | 2025-07-29 |
| 12289568 | Optical network management apparatus and method of allocating optical frequency band | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2025-04-29 |
| 12170539 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Akio Tajima, Shinsuke Fujisawa | 2024-12-17 |
| 12095507 | Multi-layer network system and path setting method in multi-layer network | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2024-09-17 |
| 12027813 | Optical amplifier and optical amplification method | Keiichi Matsumoto, Emmanuel Le Taillandier De Gabory | 2024-07-02 |
| 11881675 | Optical amplification device, optical transmission system, and optical amplification method | Keiichi Matsumoto, Shigeyuki Yanagimachi | 2024-01-23 |
| 11736839 | Optical network management apparatus and method of allocating optical frequency band | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2023-08-22 |
| 11652546 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Akio Tajima, Shinsuke Fujisawa | 2023-05-16 |
| 11212027 | Optical path setting device, optical communication system, and optical path setting method | Shinsuke Fujisawa, Shigeyuki Yanagimachi, Emmanuel Le Taillandier De Gabory | 2021-12-28 |
| 11201668 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Akio Tajima, Shinsuke Fujisawa | 2021-12-14 |
| 11115318 | Optical network control devices and optical path setting method | Shinsuke Fujisawa, Akio Tajima | 2021-09-07 |
| 11115117 | Submarine optical communication control device, control method, and non-transitory computer-readable medium | Shinsuke Fujisawa, Shigeyuki Yanagimachi, Emmanuel Le Taillandier De Gabory | 2021-09-07 |
| 11109123 | Optical network management apparatus and method of allocating optical frequency band | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2021-08-31 |
| 10938499 | Optical path controller and method of controlling optical path | Shinsuke Fujisawa, Akio Tajima | 2021-03-02 |
| 10848245 | Multi-layer network system and path setting method in multi-layer network | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2020-11-24 |
| 10848262 | Optical path design apparatus and optical path design method | Shinsuke Fujisawa, Akio Tajima | 2020-11-24 |
| 10750259 | Optical network management apparatus and method of allocating optical frequency band | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2020-08-18 |
| 10715249 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Akio Tajima, Shinsuke Fujisawa | 2020-07-14 |
| 10542335 | Optical network controller and method of setting optical path | Shinsuke Fujisawa, Akio Tajima, Tomoyuki Hino | 2020-01-21 |
| 10447419 | Optical node device, optical network controller, and optical network control method | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2019-10-15 |
| 10382135 | Optical node device, optical network controller, and optical network control method | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2019-08-13 |
| 10375460 | Optical network management apparatus and method of allocating optical frequency band | Shinsuke Fujisawa, Tomoyuki Hino, Akio Tajima | 2019-08-06 |
| 10231035 | Optical network controller and optical network control method | Tomoyuki Hino, Akio Tajima | 2019-03-12 |
| 10230487 | Optical transmitter, optical communication device, optical communication system, and optical transmission method | Tomoyuki Hino, Shinsuke Fujisawa, Akio Tajima | 2019-03-12 |