Wen-Chang Shih

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Taichung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Light emitting device with pillar structure having hollow structure
- Patent number 8,232,567
- Issue date Jul 31, 2012
- Huga Optotech Inc.
- Jing-Jie Dai
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Semiconductor light-emitting device with high light-extraction effi...
- Patent number 7,956,373
- Issue date Jun 7, 2011
- Huga Optotech, Inc.
- Wei-Kai Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High efficiency lighting device
- Patent number 7,947,991
- Issue date May 24, 2011
- Huga Optotech Inc.
- Wei-Kai Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Heating substrate
- Patent number 6,521,873
- Issue date Feb 18, 2003
- Likely Medical International Inc.
- Chung-Chi Cheng
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Light emitting device having pillar structure with hollow structure...
- Publication number 20100244053
- Publication date Sep 30, 2010
- Jing-Jie DAI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH EFFICIENCY LIGHTING DEVICE
- Publication number 20100025704
- Publication date Feb 4, 2010
- HUGA OPTOTECH INC.
- Wei-Kai Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
HIGH EFFICIENCY LIGHTING DEVICE AND MANUFACTURING METHOD THEREOF
- Publication number 20100025705
- Publication date Feb 4, 2010
- HUGA OPTOTECH INC.
- Wei-Kai Wang
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Semiconductor light-emitting device with high light-extraction effi...
- Publication number 20080258163
- Publication date Oct 23, 2008
- HUGA OPTOTECH, INC.
- Wei-Kai Wang
- H01 - BASIC ELECTRIC ELEMENTS