发明名称 |
Magnetic recording and reproducing device |
摘要 |
A magnetic recording and reproducing device using a double-layered magnetic recording medium having a first layer with an anisotropy perpendicular to the medium plane and having a second layer with a lower coercive force than the first layer. A single pole magnetic head is arranged so as to magnetize the recording medium in a direction perpendicular to the recording medium plane.
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申请公布号 |
US4251842(A) |
申请公布日期 |
1981.02.17 |
申请号 |
US19780945295 |
申请日期 |
1978.09.25 |
申请人 |
ISASAKI, SHUNICHI |
发明人 |
IWASAKI, SHUNICHI;NAKAMURA, YOSHIHISA |
分类号 |
G11B5/02;G11B5/09;G11B5/127;(IPC1-7):G11B5/78;G11B5/12;G11B5/25 |
主分类号 |
G11B5/02 |
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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