Yi Qian

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Acton, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
High-power infrared semiconductor diode light emitting device
- Patent number 7,701,991
- Issue date Apr 20, 2010
- SemiNex Corporation
- David M. Bean
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
High-power infrared semiconductor diode light emitting device
- Publication number 20070002915
- Publication date Jan 4, 2007
- SemiNex Corporation
- David M. Bean
- B82 - NANO-TECHNOLOGY