发明申请
- 专利标题: Magnetic recording medium, manufacturing process thereof, and magnetic recording apparatus
- 专利标题(中): 磁记录介质,其制造方法和磁记录装置
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申请号: US11200001申请日: 2005-08-10
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公开(公告)号: US20060093863A1公开(公告)日: 2006-05-04
- 发明人: Yuko Tsuchiya , Masafumi Mochizuki , Teruo Kohashi , Hiroshi Ikekame
- 申请人: Yuko Tsuchiya , Masafumi Mochizuki , Teruo Kohashi , Hiroshi Ikekame
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 优先权: JP2004-316616 20041029
- 主分类号: G11B5/66
- IPC分类号: G11B5/66
摘要:
A discrete track type perpendicular magnetic recording medium and a manufacturing method thereof are provided where the crystallographic orientation and perpendicular magnetic anisotropy of the magnetic recording layer are excellent, the magnetic properties of the magnetic recording layer are not deteriorated by processing, the manufacturing cost is not expensive, and a complicated manufacturing process is not required. A concavo-convex pattern structure consisting of a convex part corresponding to the position of the data track recording magnetic information and a concave part corresponding to the position of the space between data tracks is provided, and the base layer for controlling crystallographic orientation and the magnetic recording layer are stacked without voids on the concave and convex parts along the concavo-convex pattern structure.