Xiuyan SUN

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Yantai, CN

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Patents Grantslast 30 patents

Information Patent Grant
Method for producing sintered R-iron-boron magnet
- Patent number 10,748,706
- Issue date Aug 18, 2020
- Yantai Zhenghai Magnetic Material Co., Ltd.
- Yongjiang Yu
- B22 - CASTING POWDER METALLURGY
Information Patent Grant
Method for preparing R-Fe-B based sintered magnet
- Patent number 9,623,482
- Issue date Apr 18, 2017
- Yantai Zhenghai Magnetic Material Co., Ltd.
- Yongjiang Yu
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...

Patents Applicationslast 30 patents

Information Patent Application
METHOD FOR PRODUCING SINTERED R-IRON-BORON MAGNET
- Publication number 20180061568
- Publication date Mar 1, 2018
- Yantai Zhenghai Magnetic Material Co., Ltd.
- Yongjiang YU
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...
Information Patent Application
METHOD FOR PREPARING R-FE-B BASED SINTERED MAGNET
- Publication number 20140352847
- Publication date Dec 4, 2014
- Yantai Zhenghai Magnetic Material Co., Ltd.
- Yongjiang YU
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...