Fei DU

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Patents Grantslast 30 patents

Information Patent Grant
Rare earth magnet and preparation method thereof
- Patent number 12,131,850
- Issue date Oct 29, 2024
- SANVAC (BEIJING) MAGNETICS CO., LTD.
- Guoan Chen
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
R-T-B MAGNET AND PREPARATION METHOD THEREOF
- Publication number 20240274334
- Publication date Aug 15, 2024
- BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.
- Fangyun WEI
- B22 - CASTING POWDER METALLURGY
Information Patent Application
FINE GRAIN RARE EARTH ALLOY CAST STRIP, PREPARATION METHOD THEREOF,...
- Publication number 20220251692
- Publication date Aug 11, 2022
- BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.
- Wei ZHU
- B22 - CASTING POWDER METALLURGY
Information Patent Application
RARE EARTH MAGNET AND PREPARATION METHOD THEREOF
- Publication number 20210335525
- Publication date Oct 28, 2021
- SANVAC (BEIJING) MAGNETICS CO., LTD.
- Guoan CHEN
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
FINE GRAIN RARE EARTH ALLOY CAST STRIP, PREPARATION METHOD THEREOF,...
- Publication number 20190329319
- Publication date Oct 31, 2019
- BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD.
- Wei ZHU
- B22 - CASTING POWDER METALLURGY