Yai-Kun Tsai

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Pin Chen City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Button apparatus with a complex elastic unit
- Patent number 6,761,494
- Issue date Jul 13, 2004
- Darfon Electronics Corp.
- Chien-Shih Hsu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Button apparatus with a complex elastic unit
- Publication number 20030136658
- Publication date Jul 24, 2003
- DARFON ELECTRONICS CORP.
- Chien-Shih Hsu
- H01 - BASIC ELECTRIC ELEMENTS