Rak Jun Choi

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Gyunggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Nitride semiconductor light emitting device
- Patent number 8,274,069
- Issue date Sep 25, 2012
- Samsung Electronics Co., Ltd.
- Hun Jae Chung
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE AND MANUFACTURING METHO...
- Publication number 20110300652
- Publication date Dec 8, 2011
- Samsung LED Co., Ltd.
- Seong Eun Park
- B82 - NANO-TECHNOLOGY
Information Patent Application
NITRIDE SEMICONDUCTOR LIGHT EMITTING DEVICE
- Publication number 20090278113
- Publication date Nov 12, 2009
- Samsung Electro-Mechanics CO., LTD.
- Hun Jae CHUNG
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
GROUP III NITRIDE SEMICONDUCTOR THIN FILM AND GROUP III SEMICONDUCT...
- Publication number 20090224270
- Publication date Sep 10, 2009
- SAMSUNG ELECTRO-MECHANICS CO., LTD.
- Rak Jun CHOI
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Method of manufacturing III group nitride semiconductor thin film a...
- Publication number 20080099781
- Publication date May 1, 2008
- Samsung Electro-Mechanics CO., LTD.
- Rak Jun Choi
- C30 - CRYSTAL GROWTH
Information Patent Application
Nitride semiconductor light emitting device and manufacturing metho...
- Publication number 20080078986
- Publication date Apr 3, 2008
- Samsung Electro-Mechanics CO., LTD.
- Seong Eun Park
- B82 - NANO-TECHNOLOGY
Information Patent Application
Group III nitride semiconductor thin film and group III semiconduct...
- Publication number 20070221948
- Publication date Sep 27, 2007
- Rak Jun Choi
- H01 - BASIC ELECTRIC ELEMENTS