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Patent

HEXAGONAL PLATE SHAPED FERRITE POWDER, MANUFACTURING METHOD THEREOF, AND RESIN COMPOUND AND MOLDED PRODUCT USING THE FERRITE POWDER


Application Date:
Jan 11, 2018
USPTO Patent:
US 15544626
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 μ″ is maximum in a specific frequency rang...

Inventors:
Koji AGA, Chiba (JP)
Tetsuya IGARASHI, Chiba (JP)
International Classification:
C01G 49/00 (20180111); H01F 1/113 (20180111); H05K 9/00 (20180111)

Claims

What is claimed is:

1. 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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