Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10634848 | Optical filter and optical transmission device | — | 2020-04-28 |
| 10608775 | Optical transmission apparatus, optical transmission method, and optical transmission system | Shinji Komiya, Norifumi Shukunami, Tomohiro Yamauchi, Tomoyuki Kato | 2020-03-31 |