US Patent 7399368 Motor using magnet
Patent 7399368 was granted and assigned to Hitachi on July, 2008 by the United States Patent and Trademark Office.
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Patent Inventor Names
Katsuhiro Komuro0
Matahiro Komuro0
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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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US Patent 07399368 Motor using magnet US Patent 7399368 Motor using magnet
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Patent Number
073993680
Patent Number
73993680
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Is a
Current Assignee
Patent Jurisdiction
Patent Number
073993680
Date of Patent
July 15, 2008
0Patent Application Number
114300180
Date Filed
May 9, 2006
0Official Website
Patent Primary Examiner
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US Patent 07399368 Motor using magnet
Infobox
Is a
Current assignee
Patent jurisdiction
Patent number
07399368
Date of patent
July 15, 2008
Patent application number
11430018
Date Filed
May 9, 2006
Patent primary examiner
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