发明名称 |
Shielded magnetic head and magnetic reproducing apparatus |
摘要 |
<p>A shielded magnetic head (14) includes a magnetically shielded gap (7) and first to fourth conductive magnetic films (1,2,3,4) disposed in the gap. The first to fourth conductive magnetic films, each extending parallel to a tip face of a magnetic head to be opposed to a magnetic recording medium (8), are aligned at a distance from one another in a direction perpendicular to the tip face so as to be away from the tip face in ascending order and connected to one another so as to form a bridge circuit. The distance between the first conductive magnetic film and the tip face is set so that a signal magnetic field (10,11) from the magnetic recording medium is applied to the first conductive magnetic film (1). By canceling impedance components that do not vary depending on a magnetic field, the shielded magnetic head detects only impedance components that vary depending on a signal magnetic field. <IMAGE> <IMAGE></p> |
申请公布号 |
EP1184844(A2) |
申请公布日期 |
2002.03.06 |
申请号 |
EP20010306743 |
申请日期 |
2001.08.07 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
KUROE, AKIO;MURATA, AKIO;MURAMATSU, SAYURI |
分类号 |
G01R33/02;G11B5/02;G11B5/33;H01L43/00;(IPC1-7):G11B5/33 |
主分类号 |
G01R33/02 |
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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