发明申请
- 专利标题： Magnetic recording medium, method for manufacturing recording medium and magnetic recording apparatus
- 专利标题（中）： 磁记录介质，记录介质的制造方法和磁记录装置
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申请号： US11080487申请日： 2005-03-16
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公开(公告)号： US20050214591A1公开(公告)日： 2005-09-29
- 发明人: Tomoyuki Maeda , Akira Kikitsu , Soichi Oikawa , Takeshi Iwasaki
- 申请人： Tomoyuki Maeda , Akira Kikitsu , Soichi Oikawa , Takeshi Iwasaki
- 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
- 优先权： JPJP2004-090669 20040325
- 主分类号： G11B5/738
- IPC分类号： G11B5/738 ; G11B5/64 ; G11B5/65 ; G11B5/66 ; G11B5/667 ; G11B5/73 ; G11B5/84 ; G11B5/851
摘要：
A magnetic recording layer is formed on an under-layer comprising a Cu crystalline grain layer and a deposited nitrogen atom layer on the Cu crystalline grain layer surface. Then the magnetic recording layer comprising very small average grain diameter and sharp grain diameter distribution is obtained. The magnetic recording medium comprising the magnetic recording layer shows excellent signal to noise ratio at high density recording.
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