Patents/Inventors

An-kai Chang

TaichungTW3 patents

4 Patents

US124113172025
Lens Assembly
ASIA OPTICAL CO., Inc.
0 cites
US122595292025
Lens Assembly
ASI OPTICAL CO., Inc.
0 cites
US121175952024
Lens Assembly
Asia Optical Co., Inc.
0 cites
US118156662023
Wide-angle Lens Assembly Including Nine Lenses of −−+++−++− or −−+++−+−+, or Ten Lenses of −−+++−−+++ or −−−+++−+−+ Refractive Powers
ASIA OPTICAL CO., Inc.
0 cites