Issued Patents 2025
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12334979 | Optical wavelength multiplexing transmission device and optical wavelength multiplexing transmission method | Shigeru Ishii, Takehiro Fujita, Tomoaki Takeyama | 2025-06-17 |
| 12231227 | Transmission apparatus and transmission system | Xiang Zhang, Atsushi Kodama, Kyosuke Sone | 2025-02-18 |