Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10782589 | Wavelength conversion apparatus, optical parametric amplifier, transmission apparatus, and optical transmission system | Ichiro Nakajima, Yoshitaka Yamanaka | 2020-09-22 |
| 10754224 | Wavelength conversion device, transmission device, and transmission system | — | 2020-08-25 |
| 10644823 | Optical transfer system, control device, optical transfer method, and transfer device | Masahiro Yuki, Kazuo Takatsu | 2020-05-05 |
| 10634974 | Wavelength converter, wavelength conversion method, and transmission device | Norifumi Shukunami | 2020-04-28 |