发明授权
US5759617A Production process for a hard disk magnetic recording medium 失效
硬盘磁记录介质的制作过程

  • 专利标题: Production process for a hard disk magnetic recording medium
  • 专利标题(中): 硬盘磁记录介质的制作过程
  • 申请号: US825628
    申请日: 1997-03-31
  • 公开(公告)号: US5759617A
    公开(公告)日: 1998-06-02
  • 发明人: Ryoichi Mukai
  • 申请人: Ryoichi Mukai
  • 申请人地址: JPX Kawasaki
  • 专利权人: Fujitsu Limited
  • 当前专利权人: Fujitsu Limited
  • 当前专利权人地址: JPX Kawasaki
  • 优先权: JPX8-124873 19960520
  • 主分类号: G11B5/85
  • IPC分类号: G11B5/85 G11B5/84 B05D5/12
Production process for a hard disk magnetic recording medium
摘要:
The present invention discloses a production process for a hard disk magnetic recording medium in which post-annealing is performed after vacuum deposition of a non-magnetic base layer and magnetic metal polycrystalline layer on a substrate without forming a protective layer and without destroying the vacuum.
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