Inventor

CHANG YI-SHUN

TW5 patents

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

CHANG YI-SHUN

2 patents

US8803183B2Aug 12, 2014

LED heat-conducting substrate and its thermal module

CHANG YI-SHUN5 citations67

US8653695B2Feb 18, 2014

Power switching device and method thereof, and projection device using the power switching device

CHANG YI-SHUN4 citations60

CORETRONIC CORP

2 patents

US11442346B2Sep 13, 2022

Illumination device, projection system and operation methods thereof

CORETRONIC CORP0 citations38

US11422447B2Aug 23, 2022

Illumination system, projection device and color wheel calibrating method

CORETRONIC CORP0 citations38

TWINHEAD INTERNATIONAL CORP

1 patent

US6082623AJul 4, 2000

Cooling system and method for a portable computer

TWINHEAD INTERNATIONAL CORP48 citations87