Pin-Feng Chang

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Fengyuan City, TW

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Patents Grantslast 30 patents

Information Patent Grant
Floating-type clamping device
- Patent number 8,132,797
- Issue date Mar 13, 2012
- Pin-Feng Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Working machine having distance adjustment function
- Patent number 7,631,674
- Issue date Dec 15, 2009
- Pin-Feng Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Working machine that can clamp a workpiece automatically
- Patent number 7,537,420
- Issue date May 26, 2009
- Pin-Feng Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Safety protective device for working machine
- Patent number 7,396,195
- Issue date Jul 8, 2008
- Pin-Feng Chang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Workpiece size alignment device
- Patent number 7,107,699
- Issue date Sep 19, 2006
- Pin-Feng Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
FLOATING-TYPE CLAMPING DEVICE
- Publication number 20100301535
- Publication date Dec 2, 2010
- Pin-Feng Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Working machine having distance adjustment function
- Publication number 20070277662
- Publication date Dec 6, 2007
- Pin-Feng Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Working machine that can clamp a workpiece automatically
- Publication number 20070122244
- Publication date May 31, 2007
- Pin-Feng Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
Safety protective device for working machine
- Publication number 20060243109
- Publication date Nov 2, 2006
- Pin-Feng Chang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
WORKPIECE SIZE ALIGNMENT DEVICE
- Publication number 20060174505
- Publication date Aug 10, 2006
- Pin-Feng Chang
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR