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Title:
MAGNETIC RECORDING MEDIUM
Document Type and Number:
WIPO Patent Application WO/2018/163658
Kind Code:
A1
Abstract:
In order to provide a magnetic recording medium in which the average particle diameter and the particle diameter distribution are reduced, the present invention provides a magnetic recording medium that has an applicable magnetic property (magnetically anisotropic energy) as a magnetic recording medium. This magnetic recording medium includes, in said order, a substrate, a particle diameter control layer, a first seed layer, a second seed layer, and a magnetic recording layer including an ordered alloy, wherein the second seed layer comprises crystal particles the main ingredient of which is TiN, and a grain boundary material the main ingredient of which is at least one selected from a group consisting of a metal oxide and carbon.

Inventors:
KATAOKA Hiroyasu (1-1, Tanabeshinden, Kawasaki-ku, Kawasaki-sh, Kanagawa 30, 〒2109530, JP)
YOSHIZAWA Tsuyoshi (1-1, Tanabeshinden, Kawasaki-ku, Kawasaki-sh, Kanagawa 30, 〒2109530, JP)
MORIYA Tomohiro (1-1, Tanabeshinden, Kawasaki-ku, Kawasaki-sh, Kanagawa 30, 〒2109530, JP)
UCHIDA Shinji (1-1, Tanabeshinden, Kawasaki-ku, Kawasaki-sh, Kanagawa 30, 〒2109530, JP)
OYAMA Hirohisa (1-1, Tanabeshinden, Kawasaki-ku, Kawasaki-sh, Kanagawa 30, 〒2109530, JP)
SHIMATSU Takehito (2-1-1 Katahira, Aoba-ku, Sendai-sh, Miyagi 77, 〒9808577, JP)
Application Number:
JP2018/002734
Publication Date:
September 13, 2018
Filing Date:
January 29, 2018
Export Citation:
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Assignee:
FUJI ELECTRIC CO., LTD. (1-1 Tanabeshinden, Kawasaki-ku Kawasaki-sh, Kanagawa 30, 〒2109530, JP)
International Classes:
G11B5/738; G11B5/64
Foreign References:
JP2015530691A2015-10-15
JP2010129163A2010-06-10
JP2009158053A2009-07-16
JP2005276364A2005-10-06
Attorney, Agent or Firm:
TANI & ABE, P.C. (6-20, Akasaka 2-chome Minato-k, Tokyo 52, 〒1070052, JP)
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