MAGNETIC POWDER, METHOD FOR PRODUCING SAME, AND MAGNETIC RECORDING MEDIUM

Title:

MAGNETIC POWDER, METHOD FOR PRODUCING SAME, AND MAGNETIC RECORDING MEDIUM

Document Type and Number:

WIPO Patent Application WO/2016/092744

Kind Code:

A1

Abstract:

This method for producing a magnetic powder comprises the formation of core/shell particles, each of which comprises a shell part containing a soft magnetic material, by reducing the surfaces of particles that contain a hard magnetic material.

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Inventors:

TERAKAWA MASARU (JP)
YAMAGA MINORU (JP)

Application Number:

PCT/JP2015/005667

Publication Date:

June 16, 2016

Filing Date:

November 13, 2015

Export Citation:

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Assignee:

SONY CORP (JP)

International Classes:

G11B5/84; B22F1/054; B22F1/142; B22F1/18; B22F3/00; B22F9/00; B22F9/20; B22F9/22; G11B5/706; G11B5/708; G11B5/712; G11B5/842; H01F1/09; H01F1/11

Foreign References:

JP2014216034A	2014-11-17
JP2011216838A	2011-10-27
JP2010258236A	2010-11-11
JP2014033187A	2014-02-20
JP2008243317A	2008-10-09
JP2012197474A	2012-10-18

Attorney, Agent or Firm:

SUGIURA, Masatomo et al. (JP)
Masatomo Sugiura (JP)

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