发明申请
- 专利标题： Vertical magnetic recording medium, magnetic recording apparatus and manufacturing method of a vertical magnetic recording medium
- 专利标题（中）： 垂直磁记录介质，磁记录装置和垂直磁记录介质的制造方法
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申请号： US10938259申请日： 2004-09-10
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公开(公告)号： US20050233178A1公开(公告)日： 2005-10-20
- 发明人: Toshio Sugimoto , Takuya Uzumaki , Atsushi Tanaka
- 申请人： Toshio Sugimoto , Takuya Uzumaki , Atsushi Tanaka
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 优先权： JP2004-119273 20040414
- 主分类号： G11B5/65
- IPC分类号： G11B5/65 ; G11B5/66 ; G11B5/667 ; G11B5/68 ; G11B5/73 ; G11B5/738 ; G11B5/84 ; G11B5/851 ; G11B5/858
摘要：
A vertical magnetic recording medium comprises a substrate, a soft magnetic backing layer formed on the substrate, a magnetic flux confinement layer formed on the soft magnetic backing layer, an intermediate layer formed on the magnetic flux confinement layer, and a recording layer of a vertical magnetization film formed on the intermediate layer, wherein the magnetic flux confinement part comprises a plurality of soft magnetic parts each formed along a track region of plural track regions and a non-magnetic part formed between adjacent track regions, the intermediate layer being formed of a non-magnetic material and is formed so as to cover a surface of the soft magnetic part and the non-magnetic parts.
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