Invention Grant
- Patent Title: Magnetic recording medium and method of manufacturing the same
- Patent Title (中): 磁记录介质及其制造方法
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Application No.: US13838996Application Date: 2013-03-15
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Publication No.: US09401171B2Publication Date: 2016-07-26
- Inventor: Norihito Kasada , Masahide Sato , Isamu Watanabe
- Applicant: FUJIFILM Corporation
- Applicant Address: JP Tokyo
- Assignee: FUJIFILM Corporation
- Current Assignee: FUJIFILM Corporation
- Current Assignee Address: JP Tokyo
- Agency: Sughrue Mion, PLLC
- Priority: JP2012-082117 20120330; JP2013-051354 20130314
- Main IPC: G11B5/706
- IPC: G11B5/706 ; G11B5/708 ; G11B5/842 ; G11B5/70

Abstract:
An aspect of the present invention relates to a magnetic recording medium, which comprises a nonmagnetic layer containing a nonmagnetic powder and a binder and a magnetic layer containing a ferromagnetic powder and a binder in this order on a nonmagnetic support, wherein the nonmagnetic layer has a thickness of equal to or less than 300 nm; a composite elastic modulus as measured on a surface of the magnetic layer ranges from 6.0 to 8.0 GPa; the magnetic layer comprises an abrasive with a specific surface area by BET method ranging from 14 m2/g to 40 m2/g; and a surface abrasive occupancy on a surface of the magnetic layer ranges from 0.2% to 2%.
Public/Granted literature
- US20130260179A1 MAGNETIC RECORDING MEDIUM AND METHOD OF MANUFACTURING THE SAME Public/Granted day:2013-10-03
Information query
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