Magnetic recording head with clad coil
    7.
    发明授权
    Magnetic recording head with clad coil 有权
    磁记录头与包线线圈

    公开(公告)号:US07310202B2

    公开(公告)日:2007-12-18

    申请号:US10809245

    申请日:2004-03-25

    IPC分类号: G11B5/17

    CPC分类号: G11B5/1272 G11B5/17

    摘要: A magnetic write head for recording data having reduced erasure caused by a magnetic field is disclosed. The magnetic write head include a main pole and a conductive coil positioned adjacent the main pole. The conductive coil is insulated from the main pole. The magnetic write head includes means for directing a magnetic field produced by the conductive coil toward the main pole.

    摘要翻译: 公开了一种用于记录由磁场引起的擦除减少的数据的磁写头。 磁写头包括主极和邻近主极定位的导电线圈。 导电线圈与主极绝缘。 磁写头包括用于将由导电线圈产生的磁场引向主极的装置。

    Apparatus and method for controlling remnant magnetization in a magnetic recording head
    10.
    发明授权
    Apparatus and method for controlling remnant magnetization in a magnetic recording head 失效
    用于控制磁记录头中的残余磁化的装置和方法

    公开(公告)号:US07440213B2

    公开(公告)日:2008-10-21

    申请号:US11054456

    申请日:2005-02-09

    IPC分类号: G11B27/36 G11B5/03 G11B5/17

    CPC分类号: G11B5/3113 G11B5/1278

    摘要: The present invention provides a magnetic writer. The magnetic writer comprises a write circuit, a write pole, a first write coil for inducing a first magnetic field in the write pole by a first current provided by the write circuit, and a second write coil for inducing a second magnetic field in the write pole by a second current provided by the write circuit. The write circuit provides a first current through the first coil and a second current through the second coil. The write circuit controls the direction of the first current and the second current so that, during writing, the first magnetic field and the second magnetic field have components perpendicular to the air bearing surface that are in the same direction. When not writing, the first magnetic field and second magnetic field have components perpendicular to the air bearing surface in opposite directions.

    摘要翻译: 本发明提供一种磁性写入器。 磁性写入器包括写入电路,写入极,用于通过由写入电路提供的第一电流在写入极中引起第一磁场的第一写入线圈和用于在写入中引起第二磁场的第二写入线圈 由写入电路提供的第二电流。 写入电路提供通过第一线圈的第一电流和通过第二线圈的第二电流。 写入电路控制第一电流和第二电流的方向,使得在写入期间,第一磁场和第二磁场具有垂直于空气轴承表面的分量处于相同方向的分量。 当不写时,第一磁场和第二磁场具有相反方向垂直于空气轴承表面的分量。