Issued Patents 2023
Showing 1–3 of 3 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 |