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Patent

HEXAGONAL PLATE-SHAPED FERRITE POWDER, METHOD FOR PRODUCING SAME, AND RESIN COMPOSITION AND MOLDED ARTICLE USING SAID FERRITE POWDER


Application Date:
Nov 29, 2017
EPO Patent:
EP 3248942 A1
Abstract:

Objects are to provide a ferrite powder having a residual magnetization and a coercive force larger than those of spherical hard ferrite particle, and magnetic permeability ยต" is maximum in a specific frequency rang...

Inventors:
AGA, Koji
IGARASHI, Tetsuya
International Classification:
C01G 49/00 20060101AFI20160804BHEP

Claims

What is claimed is:

A hexagonal plate shaped ferrite powder characterized in containing 7.8 to 9 wt% of Sr, 61 to 65 wt% of Fe, and 0.1 to 0.65 wt% of Mg.

Description:

[Technical Field]

The present invention relates to a hexagonal plate shaped ferrite powder which has a residual magnetization and a coercive force larger than those of spherical hard ferrite powder, and has a specific frequency characteristic, and a method of manufacturing the same with low cost. Furthermore, the present invention relates to...

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