Issued Patents 2018
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10153850 | Power feed line switching circuit, branching device, submarine cable system, and power feed line switching method | — | 2018-12-11 |
| 9912407 | Optical relay device, optical communication system, optical relay method, and storage medium | — | 2018-03-06 |
| 9866346 | Redundancy protection for reconfigurable optical add/drop multiplexing (ROADM) branching unit | Philip Nan Ji, Ting Wang | 2018-01-09 |