Magnetic powder for magnetic recording, magnetic recording medium, and method of manufacturing magnetic powder for magnetic recording

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United States of America Patent

PATENT NO 9589585
APP PUB NO 20150187472A1
SERIAL NO

14584602

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Abstract

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An aspect of the present invention relates to magnetic powder, which is magnetoplumbite hexagonal strontium ferrite magnetic powder comprising 0.05 atomic percent to 3 atomic percent of Ca per 100 atomic percent of Fe, but comprising no rare earth elements or transition metal elements other than Fe, the average particle size of which ranges from 10 nm to 25 nm, and which is magnetic powder for magnetic recording.

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Patent Owner(s)

Patent OwnerAddress
FUJIFILM CORPORATIONTOKYO 106-8620

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Shirata, Masashi Minami-ashigara, JP 43 400

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