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    Integrated magnetic head having a magnetic layer functioning as both a magnetic shield and a magnetic pole
    4.
    发明授权
    Integrated magnetic head having a magnetic layer functioning as both a magnetic shield and a magnetic pole 失效
    具有用作磁屏蔽和磁极两者的磁性层的集成磁头

    公开(公告)号：US5168409A

    公开(公告)日：1992-12-01

    申请号：US476787

    申请日：1990-02-08

    申请人： Naoki Koyama ,  Hisashi Takano ,  Eijin Moriwaki ,  Kazuo Shiiki

    发明人： Naoki Koyama ,  Hisashi Takano ,  Eijin Moriwaki ,  Kazuo Shiiki

    IPC分类号： G11B5/265 ,  G11B5/31 ,  G11B5/39

    CPC分类号： G11B5/3967 ,  G11B5/31 ,  G11B5/3153

    摘要： The magnetic layer of a head structure can satisfy the characteristics of both the magnetic shield layer and magnetic pole layer for recording by bringing the combined upper part and lower part of the magnetic layer respectively into conformity with the widths necessary for the shield layer and for the magnetic pole, e.g., specifically, by disposing a taper or more specifically a step shape to the section of the magnetic layer to have the dimension of the upper part of the magnetic layer different from that of the lower part. The width of the magnetic layer facing one of the recording magnetic poles can be brought into conformity with the track width. Accordingly, the flux at the time of a write operation concentrates on the track width portion and hence, side writing of the recording head can be reduced. On the other hand, the width of the magnetic head on the opposed side to the magnetoresistive sensor can be extended sufficiently to fully cover the sensor. For this reason, the noise picked up by the magnetoresistive sensor resulting from the signal flux from the adjacent tracks can be reduced.

    摘要翻译： 头部结构的磁性层可以通过使磁性层的组合上部和下部分别与屏蔽层所需的宽度相符合而满足磁屏蔽层和磁极层两者的记录特性， 磁极，例如具体地通过将锥形或更具体的台阶形状设置在磁性层的部分上，使得磁性层的上部的尺寸与下部的尺寸不同。 可以使面向磁记录磁极之一的磁性层的宽度与磁道宽度一致。 因此，写入操作时的磁通集中在磁道宽度部分上，因此可以减小记录头的侧面写入。 另一方面，与磁阻传感器相对的一侧的磁头的宽度能够被充分地延伸以完全覆盖传感器。 因此，可以减少由相邻轨道的信号通量产生的磁阻传感器拾取的噪声。

    Magnetic head
    5.
    发明授权
    Magnetic head 失效
    磁头

    公开(公告)号：US4922360A

    公开(公告)日：1990-05-01

    申请号：US249306

    申请日：1988-09-21

    申请人： Hisashi Takano ,  Naoki Koyama ,  Isamu Yuito ,  Kazuo Shiiki ,  Hideo Tanabe

    发明人： Hisashi Takano ,  Naoki Koyama ,  Isamu Yuito ,  Kazuo Shiiki ,  Hideo Tanabe

    IPC分类号： G11B5/39

    CPC分类号： G11B5/3987 ,  G11B5/399

    摘要： A magnetic head includes a magnetoresistance element having the form of a loop and provided with a gap at a first portion opposite to a second portion confronting a magnetic recording medium, a coil conductor formed around the first portion of the magnetoresistance element for applying a bias magnetic field to the second portion of the magnetoresistance element in the direction of width of a track on the magnetic recording medium, and a lead conductor attached to the magnetoresistance element to cause a current which is necessary for detecting a signal recorded on the magnetic recording medium, to flow through the second portion of the magnetoresistance element, and formed together with the coil conductor as one body so that a part of a current supplied to the lead conductor flows through the coil conductor.

    摘要翻译： 磁头包括具有环形形式的磁阻元件，并且在与面对磁记录介质的第二部分相对的第一部分处设置有间隙，围绕磁阻元件的第一部分形成的线圈导体，用于施加偏磁 在磁记录介质上的轨道的宽度方向上的磁阻元件的第二部分的磁场和连接到磁阻元件的引线导体，以产生检测记录在磁记录介质上的信号所必需的电流， 流过磁阻元件的第二部分，并且与线圈导体一起形成为一体，使得供应到引线导体的电流的一部分流过线圈导体。

    Thin film magnetic head and fabricating method thereof
    7.
    发明授权
    Thin film magnetic head and fabricating method thereof 失效
    薄膜磁头及其制造方法

    公开(公告)号：US4539616A

    公开(公告)日：1985-09-03

    申请号：US400019

    申请日：1982-07-20

    申请人： Isamu Yuito ,  Kazuo Shiiki ,  Atsushi Saiki ,  Yoshio Homma ,  Noriyuki Kumasaka ,  Yoshihiro Shiroishi ,  Mitsuhiro Kudo

    发明人： Isamu Yuito ,  Kazuo Shiiki ,  Atsushi Saiki ,  Yoshio Homma ,  Noriyuki Kumasaka ,  Yoshihiro Shiroishi ,  Mitsuhiro Kudo

    IPC分类号： G11B5/17 ,  G11B5/31 ,  G11B5/22 ,  G11B5/20

    CPC分类号： G11B5/313 ,  G11B5/17 ,  Y10T29/49064

    摘要： Herein disclosed is a thin film magnetic head which is so constructed that a conductor layer arranged in a non-magnetic insulating layer isolating two magnetic poles and adapted to form a coil of plural turns has a height made larger than the width and gap thereof. A method of fabricating that head includes the step of forming a non-magnetic insulating layer, the step of etching the insulating layer by using a mask layer formed thereover as a mask, the step of depositing a metal for providing a conductor layer, the step of removing the mask layer together with the metal thereover, and the step forming a coating of a non-magnetic insulating layer thereover, thereby to form the conductor layer. The head thus fabricated has its magnetic recording and reproducing characteristics improved.

    摘要翻译： 这里公开了一种薄膜磁头，其结构使得布置在隔离两个磁极并适于形成多个匝的线圈的非磁性绝缘层中的导体层具有比其宽度和间隙大的高度。 制造该头的方法包括形成非磁性绝缘层的步骤，通过使用其上形成的掩模层作为掩模蚀刻绝缘层的步骤，沉积用于提供导体层的金属的步骤，步骤 与金属一起除去掩模层，以及在其上形成非磁性绝缘层的涂层的步骤，从而形成导体层。 如此制造的磁头具有改善的磁记录和再现特性。