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    PERPENDICULAR MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING DEVICE SUITABLE FOR HIGH-DENSITY MAGNETIC RECORDING
    7.
    发明申请
    PERPENDICULAR MAGNETIC RECORDING HEAD AND MAGNETIC RECORDING DEVICE SUITABLE FOR HIGH-DENSITY MAGNETIC RECORDING 有权
    适用于高密度磁记录的全磁记录磁头和磁记录装置

    公开(公告)号：US20110002063A1

    公开(公告)日：2011-01-06

    申请号：US12827999

    申请日：2010-06-30

    申请人： Yohji Maruyama ,  Tadayuki Iwakura ,  Tetsuya Okai ,  Hiromi Shiina ,  Kazue Kudo

    发明人： Yohji Maruyama ,  Tadayuki Iwakura ,  Tetsuya Okai ,  Hiromi Shiina ,  Kazue Kudo

    IPC分类号： G11B21/02 ,  G11B5/33

    CPC分类号： G11B5/3116 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

    摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole having a trailing side and two lateral sides, a magnetic shield near the trailing side and both lateral sides of the main magnetic pole, the magnetic shield comprising: a first soft magnetic film with a relatively high saturation flux density positioned facing depthwise from a floating surface side thereof, a second soft magnetic film with a relatively low saturation flux density, and a first non-magnetic film. The head also includes a non-magnetic film interposed between the magnetic shield and the main magnetic pole, a first magnetic film magnetically coupled to the magnetic shield and the main magnetic pole on a side opposite a floating surface side thereof, and a coil surrounding a magnetic circuit, the magnetic circuit comprising the main magnetic pole and the first magnetic film. Other systems and methods are also described.

    摘要翻译： 根据一个实施例，垂直磁记录头包括具有后侧和两个侧面的主磁极，靠近主磁极的后侧和两侧的磁屏蔽，磁屏蔽包括：第一软磁 具有从其浮动表面侧朝向深度方向定位的相对较高的饱和磁通密度的膜，具有相对低的饱和磁通密度的第二软磁膜和第一非磁性膜。 头部还包括插入在磁屏蔽和主磁极之间的非磁性膜，磁性地耦合到磁屏蔽的第一磁性膜和与其浮动表面侧相对的一侧的主磁极，以及围绕 所述磁路包括所述主磁极和所述第一磁性膜。 还描述了其它系统和方法。

    Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording
    8.
    发明授权
    Perpendicular magnetic recording head having a non-magnetic film recessed from the air bearing surface for improved high-density magnetic recording 有权
    具有从空气轴承表面凹陷的非磁性膜的垂直磁记录头用于改善高密度磁记录

    公开(公告)号：US08542462B2

    公开(公告)日：2013-09-24

    申请号：US12827999

    申请日：2010-06-30

    申请人： Yohji Maruyama ,  Tadayuki Iwakura ,  Tetsuya Okai ,  Hiromi Shiina ,  Kazue Kudo

    发明人： Yohji Maruyama ,  Tadayuki Iwakura ,  Tetsuya Okai ,  Hiromi Shiina ,  Kazue Kudo

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3116 ,  G11B5/112 ,  G11B5/1278 ,  G11B5/3146 ,  G11B5/315 ,  G11B5/3163

    摘要： According to one embodiment, a perpendicular magnetic recording head includes a main magnetic pole having a trailing side and two lateral sides, a magnetic shield near the trailing side and both lateral sides of the main magnetic pole, the magnetic shield comprising: a first soft magnetic film with a relatively high saturation flux density positioned facing depthwise from a floating surface side thereof, a second soft magnetic film with a relatively low saturation flux density, and a first non-magnetic film. The head also includes a non-magnetic film interposed between the magnetic shield and the main magnetic pole, a first magnetic film magnetically coupled to the magnetic shield and the main magnetic pole on a side opposite a floating surface side thereof, and a coil surrounding a magnetic circuit, the magnetic circuit comprising the main magnetic pole and the first magnetic film. Other systems and methods are also described.

    摘要翻译： 根据一个实施例，垂直磁记录头包括具有后侧和两个侧面的主磁极，靠近主磁极的后侧和两侧的磁屏蔽，磁屏蔽包括：第一软磁 具有从其浮动表面侧朝向深度方向定位的相对较高的饱和磁通密度的膜，具有相对低的饱和磁通密度的第二软磁膜和第一非磁性膜。 头部还包括插入在磁屏蔽和主磁极之间的非磁性膜，磁性地耦合到磁屏蔽的第一磁性膜和与其浮动表面侧相对的一侧的主磁极，以及围绕 所述磁路包括所述主磁极和所述第一磁性膜。 还描述了其它系统和方法。

    Thin film magnetic head having multiple layered films determining track width imbedded in an insulating film and method of manufacturing the same
    9.
    发明授权
    Thin film magnetic head having multiple layered films determining track width imbedded in an insulating film and method of manufacturing the same 失效
    具有确定嵌入绝缘膜中的轨道宽度的多层膜的薄膜磁头及其制造方法

    公开(公告)号：US06898057B2

    公开(公告)日：2005-05-24

    申请号：US10372803

    申请日：2003-02-26

    申请人： Tetsuya Okai ,  Makoto Morijiri ,  Yoji Maruyama ,  Kimitoshi Etoh

    发明人： Tetsuya Okai ,  Makoto Morijiri ,  Yoji Maruyama ,  Kimitoshi Etoh

    IPC分类号： G11B5/31 ,  G11B5/127 ,  G11B5/39 ,  G11B5/147

    CPC分类号： G11B5/3906 ,  G11B5/1278 ,  Y10T29/49046

    摘要： The present invention is to provide a thin film magnetic head intended to increase precision of and to narrow a width which determines a track width of a write thin film magnetic head and to supply a stably high output substantially free from write blurring on a disk, and a method for manufacturing the same. The thin film magnetic head consisting of a magnetic circuit comprising a read head to read information, a lower magnetic film, a magnetic gap and an upper magnetic film formed with a magnetic gap between it and the lower magnetic film; and of a write head comprising a coil positioned between the upper magnetic film and the lower magnetic film and an insulating film for insulting the coil and the upper magnetic film from each other, wherein the upper magnetic film is configured of an upper first magnetic film, an upper second magnetic film and an upper third magnetic film, and the upper first magnetic film is connected to the upper third magnetic film via the upper second magnetic film.

    摘要翻译： 本发明提供一种薄膜磁头，其旨在提高确定写入薄膜磁头的磁道宽度的精度并缩小宽度，并提供基本上没有写入模糊的稳定的高输出，并且 其制造方法。 由包括用于读取信息的读取头的磁路，下部磁性膜，磁隙和在其与下部磁性膜之间形成有磁隙的上部磁性膜组成的薄膜磁头; 以及包括位于上磁性膜和下磁性膜之间的线圈的写入头和用于使线圈和上磁性膜彼此污染的绝缘膜，其中上磁性膜由上部第一磁性膜构成， 上部第二磁性膜和上部第三磁性膜，并且上部第一磁性膜经由上部第二磁性膜连接到上部第三磁性膜。