发明授权
- 专利标题： Master medium for magnetic transfer and magnetic disk and magnetic disk drive
- 专利标题（中）： 用于磁传输和磁盘和磁盘驱动器的主介质
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申请号： US10870823申请日： 2004-06-17
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公开(公告)号： US07110201B2公开(公告)日： 2006-09-19
- 发明人: Hiroyuki Suzuki , Hitoshi Komoriya , Yutaka Nakamura
- 申请人： Hiroyuki Suzuki , Hitoshi Komoriya , Yutaka Nakamura
- 申请人地址： JP Kawasaki
- 专利权人： Fujitsu Limited
- 当前专利权人： Fujitsu Limited
- 当前专利权人地址： JP Kawasaki
- 代理机构： Greer, Burns & Crain, Ltd.
- 优先权： JP2003-419200 20031217
- 主分类号： G11B5/09
- IPC分类号： G11B5/09 ; G11B5/86
摘要：
A master medium is utilized in a magnetic transfer apparatus. The master medium is superposed on a blank magnetic medium. A predetermined magnetic field is then applied to the master medium. The magnetic flux leaks from the master medium between adjacent magnetic pieces on the master medium. The leaked magnetic flux acts on the magnetic medium. The magnetization is accordingly established on the surface of the magnetic medium. Here, spaces can be reduced between the adjacent magnetic pieces on the master medium. Magnetization of a sufficient intensity can reliably be established on the magnetic medium.
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