发明申请
- 专利标题: MAGNETIC RECORDING MEDIUM AND MAGNETIC RECORDING AND REPRODUCING APPARATUS
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申请号: US16830752申请日: 2020-03-26
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公开(公告)号: US20200312362A1公开(公告)日: 2020-10-01
- 发明人: Wataru KIKUCHI , So MATSUYAMA
- 申请人: FUJIFILM Corporation
- 申请人地址: JP Tokyo
- 专利权人: FUJIFILM Corporation
- 当前专利权人: FUJIFILM Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@3a08dc91
- 主分类号: G11B5/71
- IPC分类号: G11B5/71 ; G11B5/706 ; G11B5/733 ; G11B5/78
摘要:
The magnetic recording medium includes: a non-magnetic support; and a magnetic layer including ferromagnetic powder, in which the magnetic layer includes a compound having a salt structure, and the salt structure is an ammonium salt structure of an alkyl ester anion represented by the following Formula 1. In Formula 1, R represents an alkyl group having 7 or more carbon atoms or a fluorinated alkyl group having 7 or more carbon atoms, Z+ represents an ammonium cation, and a water contact angle on a surface of the magnetic layer is 80° or more and less than 100°. A magnetic recording and reproducing apparatus includes the magnetic recording medium.
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