发明授权
- 专利标题： Magnetic recording medium and magnetic recording apparatus
- 专利标题（中）： 磁记录介质和磁记录装置
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申请号： US12285015申请日： 2008-09-26
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公开(公告)号： US08338007B2公开(公告)日： 2012-12-25
- 发明人: Kaori Kimura , Yoshiyuki Kamata , Satoshi Shirotori , Tsuyoshi Onitsuka
- 申请人： Kaori Kimura , Yoshiyuki Kamata , Satoshi Shirotori , Tsuyoshi Onitsuka
- 申请人地址： JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人： Kabushiki Kaisha Toshiba
- 当前专利权人地址： JP Tokyo
- 代理机构： Nixon & Vanderhye P.C.
- 优先权： JP2007-250092 20070926
- 主分类号： G11B5/667
- IPC分类号： G11B5/667
摘要：
A magnetic recording medium a magnetic recording medium includes a soft magnetic layer formed on a substrate, magnetic patterns made of a protruded ferromagnetic layer separated from each other on the soft magnetic layer, and a nonmagnetic layer formed between the magnetic patterns, a nitrogen concentration therein being higher on a surface side than on a substrate side.
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