Kong-Hyun Whang

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Kangnam-gu, KR

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Patents Grantslast 30 patents

Information Patent Grant
Photo-curable prepolymer comprising quaternary ammonium salt and pr...
- Patent number 5,703,142
- Issue date Dec 30, 1997
- Hanwha Chemical Corporation
- Sang-Keun Kim
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Photo-curable resin composition and product coated therewith
- Patent number 5,703,139
- Issue date Dec 30, 1997
- Hanwha Chemical Corporation
- Sang-Keun Kim
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...