Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Matahiro Komuro0
Katsuhiro Komuro0
Date of Patent
July 15, 2008
0Patent Application Number
114300180
Date Filed
May 9, 2006
0Patent Primary Examiner
Patent abstract
A permanent magnet comprises a hard magnetic material that contains at least a rare earth element and an anti-ferromagnetic material, wherein the hard magnetic material and the anti-ferromagnetic material are magnetically coupled. A volume ratio of the anti-ferromagnetic material is 20% or less, based on the permanent magnet.
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