Method of producing a magnetic powder and method of producing a magnetic recording medium

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United States of America Patent

PATENT NO 11521649
APP PUB NO 20210287714A1
SERIAL NO

16330010

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Abstract

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A method of producing a magnetic powder includes: performing heat treatment on first particles that contain triiron tetraoxide to prepare second particles that contain ε-iron oxide.

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Patent Owner(s)

Patent OwnerAddress
SONY CORPORATION1-7-1 KONAN MINATO-KU TOKYO 108-0075

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abe, Satoru Miyagi, JP 87 425
Maeshima, Katsunori Miyagi, JP 23 126
Muramatsu, Atsushi Miyagi, JP 108 985
Nakaya, Masafumi Miyagi, JP 4 9
Terakawa, Masaru Miyagi, JP 38 334
Toyosawa, Natsuki Miyagi, JP 2 3

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