Bumchul CHO

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Seoul, KR

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Patents Grantslast 30 patents

Information Patent Grant
Light-emitting device package providing improved luminous efficacy...
- Patent number 8,766,526
- Issue date Jul 1, 2014
- LG Innotek Co., Ltd
- Bumchul Cho
- G02 - OPTICS
Information Patent Grant
Optical sheet and light emitting device package having the same
- Patent number 8,613,533
- Issue date Dec 24, 2013
- LG Innotek Co., Ltd
- BumChul Cho
- F21 - LIGHTING

Patents Applicationslast 30 patents

Information Patent Application
OPTICAL SHEET AND LIGHT EMITTING DEVICE PACKAGE HAVING THE SAME
- Publication number 20120026720
- Publication date Feb 2, 2012
- BumChul CHO
- G02 - OPTICS
Information Patent Application
LIGHT-EMITTING DEVICE PACKAGE
- Publication number 20110316409
- Publication date Dec 29, 2011
- Bumchul CHO
- G02 - OPTICS