发明授权
- 专利标题: Magnetic reluctance effect magnetic head with the connection length of the forward electrode less than the facing length of the magnetic gap
- 专利标题(中): 磁阻效应磁头与正向电极的连接长度小于磁隙的面对长度
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申请号: US231513申请日: 1994-04-22
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公开(公告)号: US6130810A公开(公告)日: 2000-10-10
- 发明人: Takuji Shibata , Norio Saito , Yutaka Soda
- 申请人: Takuji Shibata , Norio Saito , Yutaka Soda
- 申请人地址: JPX Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JPX Tokyo
- 优先权: JPX5-097476 19930423
- 主分类号: G11B5/39
- IPC分类号: G11B5/39
摘要:
A magnetic reluctance effect magnetic head in which a forward side electrode is stacked on at least the surface of a magnetic reluctance effect element facing a magnetic recording medium, and in which an upper magnetic pole is stacked on the forward side electrode for facing the magnetic reluctance effect element. A connecting length L1 between the magnetic reluctance effect element and the forward side electrode is shorter than a facing length L2 over which the upper magnetic pole and the magnetic reluctance effect element face each other via a magnetic gap G. The upper magnetic pole and the magnetic reluctance effect element have an area in which the upper magnetic pole and the magnetic reluctance effect element face each other over a distance g2 larger than a magnetic gap length g1 of the magnetic gap G. The upper magnetic pole may be formed to be progressively spaced apart from the magnetic reluctance effect element by being angled 30.degree. relative to the magnetic reluctance effect element, and the distance g2 may be progressively increased. With the magnetic reluctance effect magnetic head, the playback output may be improved and the magnetic head may be reduced in size and in the power consumption.
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