Hsuen-Chih Chang

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Changhua City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Illumination apparatus
- Patent number 8,449,149
- Issue date May 28, 2013
- Industrial Technology Research Institute
- Hsuen-Chih Chang
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
ILLUMINATION APPARATUS
- Publication number 20090225551
- Publication date Sep 10, 2009
- Industrial Technology Research Institute
- Hsuen-Chih Chang
- G02 - OPTICS