Ferrite sintered magnet, motor and generator

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United States of America Patent

PATENT NO 11450458
APP PUB NO 20190267168A1
SERIAL NO

16282619

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Abstract

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Provided is a ferrite sintered magnet including a main phase formed of ferrite having a hexagonal magnetoplumbite type crystalline structure, in which the main phase contains Fe and Co, and the ferrite sintered magnet contains CaB2O4. CaB2O4 is contained in a heterophase that is a crystalline phase different from the main phase, and an area ratio of CaB2O4 to the entire cross-sectional surface of a sintered magnet, is less than or equal to 2%.

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Patent Owner(s)

Patent OwnerAddress
TDK CORPORATION2-5-1 NIHONBASHI CHUO-KU TOKYO 1036128 ?1036128

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Nagaoka, Junnichi Tokyo, JP 6 10
Ono, Hiroyuki Tokyo, JP 117 930
Sugawara, Yuichi Tokyo, JP 7 52

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