Yuan Sheng Cheng

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Zhonghe City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Concealable chip leadframe unit structure
- Patent number 7,138,704
- Issue date Nov 21, 2006
- Optimum Care International Tech. Inc.
- Jeffrey Lien
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Concealable chip leadframe unit structure
- Publication number 20050156290
- Publication date Jul 21, 2005
- Optimum Care International Tech. Inc.
- Jeffrey Lien
- H01 - BASIC ELECTRIC ELEMENTS