Bum Je Cho

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Gimhae, KR

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Patents Grantslast 30 patents

Information Patent Grant
Method of machining master link
- Patent number 8,420,972
- Issue date Apr 16, 2013
- Daechang Forging Co., Ltd.
- Bum Je Cho
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and method for manufacturing sprocket segment
- Patent number 7,832,247
- Issue date Nov 16, 2010
- Daechang Forging Co., Ltd.
- Bum Je Cho
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Method of Machining Master Link
- Publication number 20090276079
- Publication date Nov 5, 2009
- Daechang Forging Co., Ltd.
- Bum Je Cho
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Apparatus and Method for Manufacturing Sprocket Segment
- Publication number 20090260410
- Publication date Oct 22, 2009
- Daechang Forging Co., Ltd.
- Bum Je Cho
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...