Inventor

LI CHANG-CHING

TW3 patents

⚠️ This page may combine multiple inventors who share the name “LI CHANG-CHING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CORETRONIC CORP

2 patents

US11525976B2Dec 13, 2022

Focusing mechanism and projection device

CORETRONIC CORP0 citations57

US11565914B2Jan 31, 2023

Hand lifting device and projection apparatus using the same

CORETRONIC CORP0 citations46

LI CHANG-CHING

1 patent

US8608257B2Dec 17, 2013

Projector suspension device

LI CHANG-CHING7 citations74