Cobalt ferrite magnetic powder, method of producing the same, and magnetic recording medium

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United States of America Patent

PATENT NO 11551711
SERIAL NO

17430874

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Abstract

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A cobalt ferrite magnetic powder includes magnetic particles that have a uniaxial crystal magnetic anisotropy and contain cobalt ferrite. A peak top 2θ of a (3, 1, 1) plane determined by powder X-ray diffractometry using a CoKα ray is 41.3° or more and 41.5° or less. Some Cos contained in the magnetic particles are substituted with at least one selected from the group consisting of Zn, Ge, and a transition metal element other than Fe.

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Patent Owner(s)

Patent OwnerAddress
SONY GROUP CORPORATIONTOKYO

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ichise, Natsuki Tokyo, JP 6 0
Kataguchi, Takashi Tokyo, JP 6 0
Maeshima, Katsunori Tokyo, JP 23 122
Takahashi, Takeshi Tokyo, JP 339 2516
Terakawa, Masaru Tokyo, JP 38 319

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