Iron powder for powder magnetic core and process for producing powder magnetic core

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United States of America Patent

PATENT NO 9583261
APP PUB NO 20150187493A1
SERIAL NO

14419402

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Abstract

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A powder magnetic core which exhibits a high compact density and a reduced iron loss can be obtained by compacting a soft magnetic powder in which the mass ratio of soft magnetic powder particles that pass through a filter having an opening of 75 μm is 95 mass % or higher relative to the whole amount of the soft magnetic powder and which has a mean strain of less than 0.100%.

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Patent Owner(s)

  • KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.);KOBE STEEL, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hojo, Hirofumi Takasago, JP 13 59
Kamijo, Tomotsuna Takasago, JP 6 18
Mitani, Hiroyuki Kobe, JP 25 174
Miyamura, Takeo Kobe, JP 13 17

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