Guannan CHU

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Weihai City, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for manufacturing combined hollow camshaft by axial-compress...
- Patent number 11,229,940
- Issue date Jan 25, 2022
- HARBIN INSTITUTE OF TECHNOLOGY, WEIHAI
- Guannan Chu
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Process for forming hollow member with complicated cross-section
- Patent number 9,808,850
- Issue date Nov 7, 2017
- HARBIN INSTITUTE OF TECHNOLOGY (WEIHAI)
- Guannan Chu
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
PREFORMING METHOD FOR HIGH-STRENGTH STEEL VARIABLE-DIAMETER TUBULAR...
- Publication number 20230278091
- Publication date Sep 7, 2023
- Harbin Institute of Technology, Weihai
- GUANNAN CHU
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
Mold for partially shortening circumference of tube billet and usin...
- Publication number 20220402176
- Publication date Dec 22, 2022
- Harbin Institute of Technology, Weihai
- Guannan CHU
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information Patent Application
METHOD FOR MANUFACTURING COMBINED HOLLOW CAMSHAFT BY AXIAL-COMPRESS...
- Publication number 20210323042
- Publication date Oct 21, 2021
- Harbin Institute of Technology, Weihai
- Guannan CHU
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
PROCESS FOR FORMING HOLLOW MEMBER WITH COMPLICATED CROSS-SECTION
- Publication number 20170173655
- Publication date Jun 22, 2017
- HARBIN INSTITUTE OF TECHNOLOGY (WEIHAI)
- Guannan CHU
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...