Inventor

TSUNG CHIH-CHIEH

TW3 patents

Patents

3 patents

US10634901B2Apr 28, 2020

Color wheel for projector

QISDA CORP3 citations69

US11439482B2Sep 13, 2022

Intraoral scanner

QISDA CORP0 citations46

US11221546B2Jan 11, 2022

Lens and projection device

QISDA CORP0 citations43