Qinghong Du

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Hercules, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
High light efficiency solid-state light emitting structure and meth...
- Patent number 7,683,380
- Issue date Mar 23, 2010
- Dicon Fiberoptics, Inc.
- Cheng Tsin Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting diodes with current spreading layer
- Patent number 6,958,494
- Issue date Oct 25, 2005
- Dicon Fiberoptics, Inc.
- Hui-Li Lin
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
High Light Efficiency Solid-State Light Emitting Structure And Meth...
- Publication number 20080315220
- Publication date Dec 25, 2008
- DiCon Fiberoptics, Inc
- Cheng Tsin Lee
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Light emiting diodes with current spreading layer
- Publication number 20050035354
- Publication date Feb 17, 2005
- DiCon Fiberoptics, Inc
- Hui-Li Lin
- H01 - BASIC ELECTRIC ELEMENTS