Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11757554 | Optical branch insertion device and optical transmission system using optical branch insertion device | Masahiro Nakagawa, Kana Masumoto | 2023-09-12 |
| 11742976 | Optical branch insertion device and optical transmission system using optical branch insertion device | Masahiro Nakagawa, Kana Masumoto | 2023-08-29 |
| 11652563 | Optical demultiplexer, optical separation device, optical transmission system, and optical transmission method | Kana Masumoto, Masahiro Nakagawa | 2023-05-16 |
| 11251868 | Dispersion compensation system and dispersion compensation method | Kana Masumoto, Masahiro Nakagawa, Toshiya Matsuda, Masaru Katayama | 2022-02-15 |