Issued Patents All Time
Showing 25 most recent of 103 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12407613 | Encryption key generation | Takao Ochi, Ken-ichiro Yoshino | 2025-09-02 |
| 12289568 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2025-04-29 |
| 12170539 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Hitoshi Takeshita, Shinsuke Fujisawa | 2024-12-17 |
| 12124364 | Random number quality management method and apparatus | Ken-ichiro Yoshino | 2024-10-22 |
| 12095507 | Multi-layer network system and path setting method in multi-layer network | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2024-09-17 |
| 11909647 | Encryption key generation | Takao Ochi, Ken-ichiro Yoshino | 2024-02-20 |
| 11736839 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2023-08-22 |
| 11695630 | Control device, control system, network system, control method, and computer-readable medium | Shigeyuki Yanagimachi, Kiyo Ishii, Syu Namiki | 2023-07-04 |
| 11652546 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Hitoshi Takeshita, Shinsuke Fujisawa | 2023-05-16 |
| 11600790 | Polycyclic aromatic compound for organic electroluminescent device | Takuji Hatakeyama, Akihide MIZUTANI, Daisuke Baba, Yuko Yamaga | 2023-03-07 |
| 11248009 | Polycyclic aromatic compound, material for an organic device, organic electroluminescent element, display apparatus and lighting apparatus | Takuji Hatakeyama, Hiroyuki Imai, Yuko Yamaga, Daisuke Inoue | 2022-02-15 |
| 11201668 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Hitoshi Takeshita, Shinsuke Fujisawa | 2021-12-14 |
| 11115318 | Optical network control devices and optical path setting method | Shinsuke Fujisawa, Hitoshi Takeshita | 2021-09-07 |
| 11109123 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2021-08-31 |
| 10938499 | Optical path controller and method of controlling optical path | Shinsuke Fujisawa, Hitoshi Takeshita | 2021-03-02 |
| 10848262 | Optical path design apparatus and optical path design method | Hitoshi Takeshita, Shinsuke Fujisawa | 2020-11-24 |
| 10848245 | Multi-layer network system and path setting method in multi-layer network | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2020-11-24 |
| 10750259 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2020-08-18 |
| 10735328 | Information communication system, information communication method and device | Takao Ochi, Ken-ichiro Yoshino | 2020-08-04 |
| 10715249 | Optical network system, optical node device, and optical network control method | Tomoyuki Hino, Hitoshi Takeshita, Shinsuke Fujisawa | 2020-07-14 |
| 10542335 | Optical network controller and method of setting optical path | Shinsuke Fujisawa, Hitoshi Takeshita, Tomoyuki Hino | 2020-01-21 |
| 10447419 | Optical node device, optical network controller, and optical network control method | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2019-10-15 |
| 10382135 | Optical node device, optical network controller, and optical network control method | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2019-08-13 |
| 10375460 | Optical network management apparatus and method of allocating optical frequency band | Hitoshi Takeshita, Shinsuke Fujisawa, Tomoyuki Hino | 2019-08-06 |
| 10231035 | Optical network controller and optical network control method | Hitoshi Takeshita, Tomoyuki Hino | 2019-03-12 |