Pil-Guk Jang

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Yongin-si, KR

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Patents Grantslast 30 patents

Information Patent Grant
III-nitride compound semiconductor light emitting device
- Patent number 7,622,742
- Issue date Nov 24, 2009
- Epivalley Co., Ltd.
- Chang-Tae Kim
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
lll-Nitride compound semiconductor light emiting device
- Publication number 20070114511
- Publication date May 24, 2007
- EPIVALLEY Co., Ltd.
- Chang-Tae Kim
- H01 - BASIC ELECTRIC ELEMENTS