Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9838113 | Optical wavelength multiplexing device, optical transmission device, and abnormality determination method | Kota Ejima, Satoshi Yoshimura, Takumi Tochigi, Makoto Yoshimi | 2017-12-05 |
| 9191143 | Optical transmission device and optical transmission device control method | Makoto Yoshimi, Yoshiyuki Maeda | 2015-11-17 |