发明授权
- 专利标题: Perpendicular magnetic recording medium
- 专利标题(中): 垂直磁记录介质
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申请号: US12365186申请日: 2009-02-04
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公开(公告)号: US08178223B2公开(公告)日: 2012-05-15
- 发明人: Hisako Takei , Chiseki Haginoya , Hiroshi Suzuki
- 申请人: Hisako Takei , Chiseki Haginoya , Hiroshi Suzuki
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Antonelli, Terry, Stout & Kraus, LLP.
- 优先权: JP2008-038163 20080220
- 主分类号: G11B5/66
- IPC分类号: G11B5/66
摘要:
In a magnetic recording medium, there are realized an improvement in surface planarity and a reduction in characteristic degradation. The magnetic recording medium is fabricated so that the upper layer of a recording layer and a refill layer are formed of the same material.
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