发明名称 |
Magnetic transducing head for writing information on high-coercive recording media. |
摘要 |
<p>A magnetic transducing head (1) having two core parts of ferrite. In order to prevent saturation of such a magnetic head which comprises two core parts of ferrite which have gap bounding faces between which a transducing gap is formed upon writing a recording medium 10 having a coercive force of 80 kA/m or higher, the gap bounding face of each of the core parts has a layer (12, 13) of a metallic magnetic material having a higher saturation magnetisation than the ferrite. This effect is optimally used in that a winding aperture (3) is provided only in one of the core parts (5) and in that the other core part (6) has at least one recess (16, 17) in its gap bounding face which defines the magnetic gap width W of the magnetic head (1).</p> |
申请公布号 |
EP0128625(A1) |
申请公布日期 |
1984.12.19 |
申请号 |
EP19840200826 |
申请日期 |
1984.06.12 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
DRUYVESTEYN, WILLEM FREDERIK |
分类号 |
G11B5/31;G11B5/127;G11B5/187;G11B5/23;(IPC1-7):11B5/12;11B5/25;11B5/221 |
主分类号 |
G11B5/31 |
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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