发明授权
- 专利标题： Magnetic recording media, substrate for magnetic recording media, and magnetic recording apparatus
- 专利标题（中）： 磁记录介质，磁记录介质用基板和磁记录装置
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申请号： US11475874申请日： 2006-06-28
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公开(公告)号： US07580223B2公开(公告)日： 2009-08-25
- 发明人: Masatoshi Sakurai , Akira Kikitsu , Masahiro Oka
- 申请人： Masatoshi Sakurai , Akira Kikitsu , Masahiro Oka
- 申请人地址： JP Tokyo JP Tokyo
- 专利权人： Kabushiki Kaisha Toshiba,Showa Denko K.K.
- 当前专利权人： Kabushiki Kaisha Toshiba,Showa Denko K.K.
- 当前专利权人地址： JP Tokyo JP Tokyo
- 代理机构： Pillsbury Winthrop Shaw Pittman, LLP
- 优先权： JP2005-188386 20050628
- 主分类号： G11B5/82
- IPC分类号： G11B5/82
摘要：
According to one embodiment, a magnetic recording media includes a substrate having recording tracks and separating regions separating the recording tracks, the separating regions having patterns of protrusions and recesses formed therein, and a recording film deposited on the substrate, in which a difference in height between a top of the recording track and a top of the separating region is 2 nm or more and 7 nm or less, and a difference in height between the top of the recording track and a bottom of the separating region is 10 nm or more.
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