Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12413037 | Optical isolator core | Chang Xiao, Xia Hong, Fangdong ZHAO | 2025-09-09 |
| 12034266 | Optical isolator core | Chang Xiao, Xia Hong, Fangdong ZHAO | 2024-07-09 |
| 9588361 | Optical isolator | Zhiguang Xu | 2017-03-07 |
| 7062171 | Multi-wavelength, bi-directional optical multiplexer | Yusuke Ota | 2006-06-13 |