发明授权
- 专利标题： Magnetic disk medium, reticle and magnetic recording and reproducing apparatus
- 专利标题（中）： 磁盘介质，标线片和磁记录和再现装置
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申请号： US11448977申请日： 2006-06-08
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公开(公告)号： US07738213B2公开(公告)日： 2010-06-15
- 发明人: Takeshi Okino , Seiji Morita , Masatoshi Sakurai , Shinobu Sugimura
- 申请人： Takeshi Okino , Seiji Morita , Masatoshi Sakurai , Shinobu Sugimura
- 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, PC
- 优先权： JP2005-170714 20050610
- 主分类号： G11B5/667
- IPC分类号： G11B5/667
摘要：
A magnetic disc medium according to an aspect of the present invention includes: a preamble part in a servo area of each of sectors obtained by dividing a surface of the medium in a circumference direction, the preamble part including strip-shaped patterns formed of a plurality of magnetic materials, and each of the strip-shaped patterns formed of the magnetic materials being divided by non-magnetic materials at periodic intervals.