Ferrite particles for bonded magnets, resin composition for bonded magnets, and molded product using the same

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 12246475
APP PUB NO 20240033979A1
SERIAL NO

18379809

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Abstract

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The present invention relates to ferrite particles for bonded magnets and a resin composition for bonded magnets which can provide a bonded magnet molded product capable of realizing a high magnetic force and a complicated multipolar waveform owing to such a feature that the ferrite particles are readily and highly oriented against an external magnetic field in a flowing resin upon injection molding, as well as a bonded magnet molded product obtained by injection-molding the above composition. According to the present invention, there are provided ferrite particles for bonded magnets which have a crystallite size of not less than 500 nm as measured in an oriented state by XRD, and an average particle diameter of not less than 1.30 μm as measured by Fisher method; a resin composition for bonded magnets; and a molded product obtained by injection-molding the composition.

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Patent Owner(s)

  • TODA KOGYO CORP.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Fujii, Yasuhiko Otake, JP 55 331
Nishio, Yasushi Otake, JP 12 41
Sakurai, Hiromitsu Otake, JP 9 23

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