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    Thin film magnetic head and magnetic recording apparatus
    72.
    发明申请
    Thin film magnetic head and magnetic recording apparatus 审中-公开
    薄膜磁头和磁记录装置

    公开(公告)号：US20060221499A1

    公开(公告)日：2006-10-05

    申请号：US11340759

    申请日：2006-01-27

    申请人： Katsumichi Tagami ,  Yuji Ito ,  Masaru Hirose ,  Toshiaki Maeda ,  Nobutaka Nishio

    发明人： Katsumichi Tagami ,  Yuji Ito ,  Masaru Hirose ,  Toshiaki Maeda ,  Nobutaka Nishio

    IPC分类号： G11B5/147

    CPC分类号： G11B5/3116 ,  G11B5/1278 ,  G11B5/3136

    摘要： The present invention provides a thin film magnetic head realizing the gradient and the strength of a perpendicular magnetic field increased as much as possible. A main magnetic pole layer is made recede from a write shield layer. As compared with the case where the magnetic pole layer is not receded from the write shield layer, an overlap range in which the main magnetic pole layer and the write shield layer are overlapped one another is smaller. Accordingly, the amount of magnetic flux emitted from the main magnetic pole layer toward a recording medium relatively increases, and the amount of magnetic flux leaked from the main magnetic pole layer to the write shield layer relatively decreases.

    摘要翻译： 本发明提供一种实现尽可能增加的梯度和垂直磁场强度的薄膜磁头。 使主磁极层从写入屏蔽层退出。 与磁极层不从写入屏蔽层退退的情况相比，主磁极层和写入屏蔽层彼此重叠的重叠范围更小。 因此，从主磁极层朝向记录介质发射的磁通量相对增加，并且从主磁极层泄漏到写入屏蔽层的磁通量相对减少。