Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masashi Miwa0
Haruna Nakajima0
Isao Kanada0
Date of Patent
April 9, 2019
Patent Application Number
14906682
Date Filed
August 8, 2014
Patent Citations Received
Patent Primary Examiner
Patent abstract
The present invention provides an R-T-B based sintered magnet having excellent corrosion resistance together with good magnetic properties. The R-T-B based sintered magnet contains R2T14B crystal grains, wherein, an R—Ga—Co—Cu—N concentrated part exists in a grain boundary formed between or among two or more adjacent R2T14B crystal grains, and the concentrations of R, Ga, Co, Cu and N in the R—Ga—Co—Cu—N concentrated part are higher than those in the R2T14B crystal grains respectively.
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