Method for manufacturing a powder core, the powder core and an inductor

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United States of America Patent

PATENT NO 11996224
APP PUB NO 20200238374A1
SERIAL NO

16651131

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Abstract

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This method for manufacturing a powder core is provided with: a step for heat-treating amorphous soft magnetic alloy powder to obtain nanocrystal powder; a step for obtaining granulated powder from nanocrystal powder, malleable powder, and a binder; a step for pressure-molding the granulated powder to obtain a green compact; a step for curing the binder by heat-treating the green compact at a temperature which is equal to or higher than the curing initiation temperature of the binder and lower than the crystallization initiation temperature of the amorphous soft magnetic alloy powder.

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Patent Owner(s)

Patent OwnerAddress
TOKIN CORPORATION1-1 ASAHI-CHO 7-CHOME SHIROISHI-SHI MIYAGI 989-0223

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chiba, Miho Sendai, JP 8 26
Urata, Akiri Sendai, JP 27 211

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