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Yulin WANG
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Yantai, CN
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last 30 patents
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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 Applications
last 30 patents
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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...