发明名称 |
Magnetic recording apparatus and magnetic head |
摘要 |
Formation of magnetic domains in a perpendicularly magnetized medium comprising an underlayer of a soft magnetic layer is prevented by appropriate magnetic domain control in the soft magnetic layer. One method controls magnetic domains of the soft magnetic layer by applying an external magnetic field to the medium. Another method provides a mechanism in the magnetic head for generating a magnetic field to control the magnetic domains of the soft magnetic layer of the medium.
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申请公布号 |
US2003021070(A1) |
申请公布日期 |
2003.01.30 |
申请号 |
US20020206751 |
申请日期 |
2002.07.26 |
申请人 |
HITACHI, LTD. |
发明人 |
OHTSU TAKAYOSHI;NARISHIGE SHINJI |
分类号 |
G11B5/667;G11B5/00;G11B5/02;G11B5/03;G11B5/127;G11B5/39;(IPC1-7):G11B5/39 |
主分类号 |
G11B5/667 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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