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Dong Youn Sim
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Fujisawa-shi, JP
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Patents Grants
last 30 patents
Information
Patent Grant
Environment difference detector
Patent number
7,647,814
Issue date
Jan 19, 2010
Toppan Printing Co., Ltd.
Noritake Nakaso
G01 - MEASURING TESTING
Information
Patent Grant
Light modulation device and system
Patent number
6,512,625
Issue date
Jan 28, 2003
Ball Semiconductor, Inc.
Wenhui Mei
G02 - OPTICS
Patents Applications
last 30 patents
Information
Patent Application
Environment difference detector
Publication number
20070084284
Publication date
Apr 19, 2007
Toppan Printing Co., Ltd.
Noritake Nakaso
G01 - MEASURING TESTING
Information
Patent Application
Light modulation device and system
Publication number
20020149834
Publication date
Oct 17, 2002
Ball Semiconductor, Inc.
Wenhui Mei
G02 - OPTICS
Information
Patent Application
Light modulation device and system
Publication number
20020101644
Publication date
Aug 1, 2002
Wenhui Mei
G02 - OPTICS