Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6614999 | Detachable flash device for camera | Nobuyoshi Hagiuda, Zhaoxiang Chen | 2003-09-02 |
| 6556790 | Electronic flash device | Zhaoxiang Chen | 2003-04-29 |
| 6512891 | Electric flash device and camera | — | 2003-01-28 |