Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9742500 | Optical transmission apparatus and optical signal processing method | Yoshito Kachita | 2017-08-22 |
| 9699531 | Switchable optical amplifier and optical transmission apparatus | Yoshito Kachita | 2017-07-04 |