发明申请
- 专利标题: Magnetic head and storage medium drive
- 专利标题(中): 磁头和存储介质驱动
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申请号: US11888475申请日: 2007-08-01
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公开(公告)号: US20080030896A1公开(公告)日: 2008-02-07
- 发明人: Tomoko Kutsuzawa
- 申请人: Tomoko Kutsuzawa
- 申请人地址: JP Kawasaki-shi
- 专利权人: Fujitsu Limited
- 当前专利权人: Fujitsu Limited
- 当前专利权人地址: JP Kawasaki-shi
- 优先权: JP2006-211371 20060802
- 主分类号: G11B5/127
- IPC分类号: G11B5/127
摘要:
A thin film magnetic head has first and second magnetic poles spaced from each other at a medium-opposed surface. A magnetic pole end layer is opposed to the second magnetic pole in a space between the first and second magnetic poles. A magnetic piece or pieces are interposed between the magnetic pole end layer and the first magnetic pole. A non-magnetic material fills a space between the magnetic pole end layer and the first magnetic pole along the medium-opposed surface. The non-magnetic material contributes to a reduction in the volume of a magnetic body between the magnetic pole end layer and the first magnetic pole. The flux path of the magnetic flux can be narrowed. The narrowed flux path contributes to a reduction in the inductance of the magnetic head. A reduced inductance enables a reliable high-frequency recordation.
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