Si Han Kim

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Kyunggi-Do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Multi display device
- Patent number 7,414,594
- Issue date Aug 19, 2008
- Si Han Kim
- Si Han Kim
- G02 - OPTICS
Information Patent Grant
Advertising apparatus using a light switching device
- Patent number 6,997,592
- Issue date Feb 14, 2006
- Si Han Kim
- Young Jae Jeon
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

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