Issued Patents 2025
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12316383 | Wavelength cross connect device, multiband transmission system, and multiband transmission method | Hiroki Kawahara, Takeshi Seki, Sachio Suda | 2025-05-27 |
| 12244346 | Wavelength cross connect device and wavelength cross connect method | Hiroki Kawahara, Takeshi Seki, Sachio Suda | 2025-03-04 |
| 12207030 | Optical node device, optical transport network system, optical path trace method and program | Hiroki Kawahara, Takeshi Seki, Sachio Suda | 2025-01-21 |