Rare-earth sintered magnet containing a nitride, rotator containing rare-earth sintered magnet, and reciprocating motor containing rare-earth sintered magnet
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United States of America Patent
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May 28, 2013
Grant Date -
Sep 22, 2011
app pub date -
Mar 14, 2011
filing date -
Mar 16, 2010
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Abstract
The present invention relates to a rare-earth sintered magnet 100 containing an R-T-B-based alloy and a nitride of a transition element, while the nitride is distributed preferentially to a surface part. (R, T, and B indicate a rare-earth element, at least one of iron and cobalt, and boron, respectively.)
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