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Yantai, CN
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Patents Grants
last 30 patents
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Patent Grant
Method for preparing R-Fe-B based sintered magnet
Patent number
9,901,984
Issue date
Feb 27, 2018
Yantai Zhenghai Magnetic Material Co., Ltd.
Qingkai Wang
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
METHOD FOR PREPARING R-FE-B BASED SINTERED MAGNET
Publication number
20140356217
Publication date
Dec 4, 2014
Yantai Zhenghai Magnetic Material Co., Ltd.
Qingkai WANG
H01 - BASIC ELECTRIC ELEMENTS