Qingchuan Chen

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Chengdu, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ion source with upstream inner magnetic pole piece
- Patent number 7,589,474
- Issue date Sep 15, 2009
- City University of Hong Kong
- Paul K. Chu
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
ION SOURCE
- Publication number 20080136309
- Publication date Jun 12, 2008
- Paul K. Chu
- H01 - BASIC ELECTRIC ELEMENTS