Hexagonal ferrite magnetic powder and magnetic recording medium

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United States of America Patent

PATENT NO 9251832
APP PUB NO 20140287270A1
SERIAL NO

14223139

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Abstract

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An aspect of the present invention relates to hexagonal ferrite magnetic powder, which has an activation volume ranging from 900 nm3 to 1,600 nm3, and a ratio of a coefficient of plate thickness variation to a coefficient of particle diameter variation, coefficient of plate thickness variation/coefficient of particle diameter coefficient, ranging from 0.20 to 0.60.

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Patent Owner(s)

  • FUJIFILM CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Suzuki, Hiroyuki Minami-ashigara, JP 829 9950
Tada, Toshio Minami-ashigara, JP 50 3308

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