发明授权
- 专利标题： Magnetic recording medium formatted with ROM and RAM regions
- 专利标题（中）： 用ROM和RAM区域格式化的磁记录介质
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申请号： US12730912申请日： 2010-03-24
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公开(公告)号： US08077416B2公开(公告)日： 2011-12-13
- 发明人: Masatoshi Sakurai , Seiji Morita , Akira Kikitsu , Yoshiyuki Kamata
- 申请人： Masatoshi Sakurai , Seiji Morita , Akira Kikitsu , Yoshiyuki Kamata
- 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： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2004-104479 20040331
- 主分类号： G11B5/09
- IPC分类号： G11B5/09 ; G11B20/12
摘要：
A magnetic recording medium has a RAM region and a ROM region. The RAM region includes a plurality of first tracks each having a first magnetic portion. The first magnetic portions in adjacent tracks are separated from each other. The ROM region includes a plurality of second tracks each having a second magnetic portion. A width of the second magnetic portions in a direction perpendicular to a track direction of the first tracks is larger than that of the first magnetic portions in the perpendicular direction.
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