发明授权
- 专利标题: Magnetic recording medium
- 专利标题(中): 磁记录介质
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申请号: US11059532申请日: 2005-02-17
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公开(公告)号: US07413819B2公开(公告)日: 2008-08-19
- 发明人: Kazuhiro Hattori , Mitsuru Takai
- 申请人: Kazuhiro Hattori , Mitsuru Takai
- 申请人地址: JP Tokyo
- 专利权人: TDK Corporation
- 当前专利权人: TDK Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Oliff & Berridge, PLC
- 优先权: JP2004-046927 20040223
- 主分类号: G11B5/66
- IPC分类号: G11B5/66
摘要:
A magnetic recording medium is provided, which has a recording layer formed in a concavo-convex pattern and makes it possible to obtain the stable flying characteristics of a head. In the magnetic recording medium, concave portions between recording elements are filled with a non-magnetic material. Thus, the surface of the magnetic recording medium takes a concavo-convex shape which is different from the concavo-convex pattern of the recording layer. Also, the arithmetical mean deviation of the assessed profile of the concavo-convex shape in the surface is restricted to 1 nm or less.
公开/授权文献
- US20050185561A1 Magnetic recording medium 公开/授权日:2005-08-25
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