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Byoung-Cheol Jeon
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Chungcheongnam-do, KR
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Patents Grants
last 30 patents
Information
Patent Grant
Compensator comprising a positive and negative birefringent retarda...
Patent number
7,283,188
Issue date
Oct 16, 2007
Merck Patent GmbH
Jeong Su Yu
G02 - OPTICS
Information
Patent Grant
Achromatic quarter wave film
Patent number
7,169,447
Issue date
Jan 30, 2007
Merck Patent GmbH
Jeong Su Yu
G02 - OPTICS
Information
Patent Grant
Apparatus and method for separating cull in a package assembly process
Patent number
6,629,351
Issue date
Oct 7, 2003
Samsung Electronics Co., Ltd.
Dae-Sung Lee
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
Information
Patent Application
Achromatic quarter wave film
Publication number
20040032677
Publication date
Feb 19, 2004
Merck Patent GmbH
Jeong Su Yu
G02 - OPTICS
Information
Patent Application
Apparatus and method for separating cull in a package assembly process
Publication number
20030056356
Publication date
Mar 27, 2003
Samsung Electronics Co., Ltd.
Dae-Sung Lee
H01 - BASIC ELECTRIC ELEMENTS