Jian Jun Zhang

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Bao Ji City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Mechanically isolated battery charging apparatus
- Patent number 7,394,221
- Issue date Jul 1, 2008
- VTech Telecommunications Limited
- Damien (Yat Shun) Yu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Mechanically isolated battery charging apparatus
- Publication number 20050156561
- Publication date Jul 21, 2005
- Damien (Yat Shun) Yu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE