Method of manufacturing hexagonal ferrite powder, hexagonal ferrite powder, magnetic recording medium and method of manufacturing magnetic recording medium

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United States of America Patent

PATENT NO 9957167
SERIAL NO

15196859

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Abstract

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The method of manufacturing hexagonal ferrite powder includes preparing a hexagonal ferrite precursor by mixing an iron salt and a divalent metal salt in a water-based solution, and converting the hexagonal ferrite precursor into hexagonal ferrite within a reaction flow passage, within which a fluid flowing therein is subjected to heating and pressurizing, by continuously feeding a water-based solution containing the hexagonal ferrite precursor and gelatin to the reaction flow passage.

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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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