Dust core, method for manufacturing dust core, inductor including dust core, and electronic/electric device including inductor

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United States of America Patent

PATENT NO 11529679
APP PUB NO 20180021853A1
SERIAL NO

15712655

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Abstract

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A dust core contains a powder of a crystalline magnetic material powder and a powder of an amorphous magnetic material. The sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 83 mass percent or more. The mass ratio of the content of the crystalline magnetic material powder to the sum of the content of the crystalline magnetic material powder and the content of the amorphous magnetic material powder is 20 mass percent or less. The median diameter D50 of the amorphous magnetic material powder is greater than or equal to the median diameter D50 of the crystalline magnetic material powder.

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Patent Owner(s)

Patent OwnerAddress
ALPS ALPINE CO LTD1-7 YUKIGAYA-OTSUKAMACHI OTA-KU TOKYO 145-8501

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Koshiba, Hisato Niigata-ken, JP 14 138
Takadate, Kinshiro Niigata-ken, JP 11 20
Yamashita, Shokan Niigata-ken, JP 5 4

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