Cheol-Heung Ahn

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Cheonan, KR

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Patents Grantslast 30 patents

Information Patent Grant
Light diffusing film
- Patent number 7,218,450
- Issue date May 15, 2007
- SKC Co. Ltd.
- Cheol Heung Ahn
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Light diffusing film
- Publication number 20040246584
- Publication date Dec 9, 2004
- Cheol Heung Ahn
- G02 - OPTICS
Information Patent Application
Light-diffusing film and composition for the same
- Publication number 20040238801
- Publication date Dec 2, 2004
- Cheol-Heung Ahn
- G02 - OPTICS