Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12191904 | Burst optical relaying device and burst optical relaying method | Masahiro Nakagawa, Toshiya Matsuda | 2025-01-07 |
| 11870498 | Server, optical transmission method, optical transmission system, and optical transmission program | Toshiya Matsuda, Kazuyuki Matsumura | 2024-01-09 |
| 11757554 | Optical branch insertion device and optical transmission system using optical branch insertion device | Masahiro Nakagawa, Hidetoshi Onda | 2023-09-12 |
| 11742976 | Optical branch insertion device and optical transmission system using optical branch insertion device | Masahiro Nakagawa, Hidetoshi Onda | 2023-08-29 |
| 11689294 | Optical receiver | Toshiya Matsuda, Kazuyuki Matsumura | 2023-06-27 |
| 11652563 | Optical demultiplexer, optical separation device, optical transmission system, and optical transmission method | Masahiro Nakagawa, Hidetoshi Onda | 2023-05-16 |
| 11595120 | Optical transmission system and unused channel verification method | Toshiya Matsuda | 2023-02-28 |
| 11451293 | Optical transmission system and unused channel verification method | Toshiya Matsuda | 2022-09-20 |
| 11251868 | Dispersion compensation system and dispersion compensation method | Masahiro Nakagawa, Toshiya Matsuda, Hidetoshi Onda, Masaru Katayama | 2022-02-15 |
| 11206086 | Optical transceiver | Toshiya Matsuda, Toru Homemoto, Masaru Katayama, Kazuyuki Matsumura | 2021-12-21 |
| 10951344 | Optical transmitter, optical receiver, and optical transmission system | Toshiya Matsuda, Toru Homemoto, Masaru Katayama, Katsutoshi Koda | 2021-03-16 |