Issued Patents All Time
Showing 25 most recent of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12395244 | Optical fiber exhibiting low guided acoustic Brillouin scattering (GAWBS) noise and measurement thereof | Fatih Yaman, Kohei Nakamura, Takanori Inoue, Eduardo Mateo Rodriguez, Hussam G. Batshon +2 more | 2025-08-19 |
| 12289568 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Tomoyuki Hino, Akio Tajima | 2025-04-29 |
| 12170539 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Akio Tajima, Hitoshi Takeshita | 2024-12-17 |
| 12095507 | Multi-layer network system and path setting method in multi-layer network | Hitoshi Takeshita, Tomoyuki Hino, Akio Tajima | 2024-09-17 |
| 12052055 | Method of equalizing waveform distortion, terminal device, and optical communication system | Naoto Ishii, Ankith VINAYACHANDRAN, Emmanuel Le Taillandier De Gabory, Fatih Yaman, Hussam G. Batshon | 2024-07-30 |
| 12034482 | Accurate measurement for guided acoustic-wave Brillouin scattering | Fatih Yaman, Eduardo Mateo Rodriguez, Hussam G. Batshon, Kohei Nakamura, Takanori Inoue +2 more | 2024-07-09 |
| 11933605 | Estimating core-cladding concentricity error in optical fibers using guided acoustic-wave Brillouin scattering | Fatih Yaman, Hussam G. Batshon, Kohei Nakamura, Takanori Inoue, Eduardo Mateo Rodriguez +1 more | 2024-03-19 |
| 11920975 | Repeater design for distributed acoustic sensing on multispan fiber links | Ezra Ip, Yue-Kai Huang, Fatih Yaman | 2024-03-05 |
| 11888583 | Integrated 3-way branching unit switch module having small footprint | Fatih Yaman, Hussam G. Batshon, Takigawa Yoshinari, Ryuji Aida, Takanori Inoue +2 more | 2024-01-30 |
| 11782217 | Method for reducing GAWBS noise by reducing polarization diffusion length | Fatih Yaman, Eduardo Mateo Rodriguez, Hassam Batshon, Kohei Nakamura, Takanori Inoue +1 more | 2023-10-10 |
| 11736839 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Tomoyuki Hino, Akio Tajima | 2023-08-22 |
| 11700067 | Three-way branching unit switch module having small footprint | Fatih Yaman, Hussam G. Batshon, Yoshinari Takigawa, Ryu Kurahashi, Ryuji Aida +4 more | 2023-07-11 |
| 11652546 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Akio Tajima, Hitoshi Takeshita | 2023-05-16 |
| 11467061 | Estimating mode field distribution in optical fibers from guided acoustic wave brillouin scattering | Fatih Yaman, Eduardo Mateo Rodriguez, Hussam G. Batshon, Kohei Nakamura, Takanori Inoue +2 more | 2022-10-11 |
| 11212027 | Optical path setting device, optical communication system, and optical path setting method | Hitoshi Takeshita, 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, Hitoshi Takeshita | 2021-12-14 |
| 11115117 | Submarine optical communication control device, control method, and non-transitory computer-readable medium | Hitoshi Takeshita, Shigeyuki Yanagimachi, Emmanuel Le Taillandier De Gabory | 2021-09-07 |
| 11115318 | Optical network control devices and optical path setting method | Hitoshi Takeshita, Akio Tajima | 2021-09-07 |
| 11109123 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Tomoyuki Hino, Akio Tajima | 2021-08-31 |
| 10938499 | Optical path controller and method of controlling optical path | Akio Tajima, Hitoshi Takeshita | 2021-03-02 |
| 10848245 | Multi-layer network system and path setting method in multi-layer network | Hitoshi Takeshita, Tomoyuki Hino, Akio Tajima | 2020-11-24 |
| 10848262 | Optical path design apparatus and optical path design method | Hitoshi Takeshita, Akio Tajima | 2020-11-24 |
| 10750259 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Tomoyuki Hino, Akio Tajima | 2020-08-18 |
| 10715249 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Akio Tajima, Hitoshi Takeshita | 2020-07-14 |
| 10542335 | Optical network controller and method of setting optical path | Akio Tajima, Hitoshi Takeshita, Tomoyuki Hino | 2020-01-21 |