发明申请
- 专利标题: Perpendicular magnetic recording medium and magnetic storage apparatus
- 专利标题(中): 垂直磁记录介质和磁存储设备
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申请号: US11388991申请日: 2006-03-24
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公开(公告)号: US20060199043A1公开(公告)日: 2006-09-07
- 发明人: Toshio Sugimoto , Ryosaku Inamura , Atsushi Tanaka
- 申请人: Toshio Sugimoto , Ryosaku Inamura , Atsushi Tanaka
- 专利权人: FUJITSU LIMITED
- 当前专利权人: FUJITSU LIMITED
- 主分类号: G11B5/66
- IPC分类号: G11B5/66 ; B05D5/12
摘要:
A perpendicular magnetic recording medium includes a substrate and has a construction to stack consecutively on the substrate, a soft-magnetic backing layer, a seed layer, a magnetic flux slit layer, a non-magnetic intermediate layer, a recording layer, a protective layer, and a lubricating layer, wherein the magnetic flux slit layer 13 includes soft-magnetic particles of generally columnar structure having a boundary part of a non-magnetic part and constricts the magnetic flux from the recording head only to the part where the soft-magnetic particle is provided and suppresses thereby spreading of the magnetic flux. Further, a perpendicular magnetic recording medium carrying a magnetic flux slit layer over the recording layer is disposed.
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