Kwan-Chun Park

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Gyeonggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing a sheet molded to form a multi-dimensional...
- Patent number 9,061,339
- Issue date Jun 23, 2015
- STEEL LIFE CO., LTD.
- Kwan-Chun Park
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
Pad Conditioning and Wafer Retaining Ring and Manufacturing Method...
- Publication number 20140154956
- Publication date Jun 5, 2014
- EHWA DIAMOND INDUSTRIAL. CO., LTD.
- Seh Kwang LEE
- B24 - GRINDING POLISHING
Information Patent Application
METHOD FOR MANUFACTURING A SHEET MOLDED TO FORM A MULTI-DIMENSIONAL...
- Publication number 20130086966
- Publication date Apr 11, 2013
- STEEL FLOWER CO., LTD.
- Kwan-Chun Park
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...