发明授权
- 专利标题: Magnetic recording medium, method of modifying surface of magnetic powder and magnetic coating material
- 专利标题(中): 磁记录介质,磁粉表面和磁性涂层材料的改性方法
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申请号: US12413956申请日: 2009-03-30
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公开(公告)号: US08153283B2公开(公告)日: 2012-04-10
- 发明人: Masahiko Mori , Kazufumi Omura
- 申请人: Masahiko Mori , Kazufumi Omura
- 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
- 代理机构: Sughrue Mion, PLLC
- 优先权: JP2008-090720 20080331
- 主分类号: G11B5/708
- IPC分类号: G11B5/708
摘要:
An aspect of the present invention relates to a magnetic recording medium comprising a magnetic layer comprising a ferromagnetic powder and a binder on a nonmagnetic support, wherein the magnetic layer comprises a compound denoted by general formula (1): wherein, in general formula (1), X denotes a divalent linking group, each of R1 and R2 independently denotes an alkyl group having 2 to 20 carbon atoms, an aryl group having 6 to 20 carbon atoms, an aralkyl group having 7 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms, or an aryloxyalkyl group having 7 to 20 carbon atoms, and M denotes a hydrogen atom or a cation.
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