Yunwu Ma

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Shanghai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Rivet with improved structure for forming flat-bottom riveting of p...
- Patent number 12,163,543
- Issue date Dec 10, 2024
- Shanghai Jiao Tong University
- Yongbing Li
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Rivet for friction self-piercing riveting and friction self-piercin...
- Patent number 10,695,821
- Issue date Jun 30, 2020
- Shanghai Jiaotong University
- Yongbing Li
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
RIVET WITH IMPROVED STRUCTURE FOR FORMING FLAT-BOTTOM RIVETING OF P...
- Publication number 20230184281
- Publication date Jun 15, 2023
- SHANGHAI JIAO TONG UNIVERSITY
- Yongbing LI
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
RIVET FOR FRICTION SELF-PIERCING RIVETING AND FRICTION SELF-PIERCIN...
- Publication number 20190039119
- Publication date Feb 7, 2019
- SHANGHAI JIAOTONG UNIVERSITY
- Yongbing LI
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Application
FRICTION STIR BLIND RIVET JOINING SYSTEM AND METHOD
- Publication number 20190022737
- Publication date Jan 24, 2019
- GM GLOBAL TECHNOLOGY OPERATIONS LLC
- Yunwu Ma
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...