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    MAGNETIC HEAD AND MAGNETIC RECORDING MEDIUM PROCESSING DEVICE
    1.
    发明申请
    MAGNETIC HEAD AND MAGNETIC RECORDING MEDIUM PROCESSING DEVICE 审中-公开

    公开(公告)号：US20190130935A1

    公开(公告)日：2019-05-02

    申请号：US16089386

    申请日：2017-03-08

    申请人： NIDEC SANKYO CORPORATION

    发明人： Katsuhisa HIGASHI ,  Yohei SHIMIZU

    IPC分类号： G11B5/008 ,  G11B5/31

    CPC分类号： G11B5/00808 ,  G06K7/08 ,  G11B5/09 ,  G11B5/105 ,  G11B5/17 ,  G11B5/3109

    摘要： This magnetic head, which reads and writes magnetic information, prevents a signal from being read between the magnetic head and the write circuit during reading of magnetic information. A card reader 1 is provided with a magnetic head 6 which reads and writes magnetic information. Bidirectional diodes 54A, 54B are arranged inside of a head case 21 of the magnetic head 6. A write signal from a write circuit 72 is inputted via the bidirectional diodes 54A, 54B to a writing coil 34 wound around a core 32 of the magnetic head 6. The bidirectional diodes 54A, 54B and a demodulation IC 61 are mounted on a first board surface 62A of a control circuit board 62, and the control circuit board 62 is fixed to the head case 21 so that the bidirectional diodes 54A, 54B and the demodulation IC 61 are covered by the head case 21.

    Thermally-assisted magnetic write head, head gimbal assembly, head arm assembly, and magnetic disk unit
    4.
    发明授权
    Thermally-assisted magnetic write head, head gimbal assembly, head arm assembly, and magnetic disk unit 有权
    热辅助写磁头，磁头万向架组件，磁头臂组件和磁盘单元

    公开(公告)号：US08861135B2

    公开(公告)日：2014-10-14

    申请号：US13645057

    申请日：2012-10-04

    申请人： TDK Corporation

    发明人： Kenichi Takano

    IPC分类号： G11B5/31 ,  G11B13/08

    CPC分类号： G11B5/3109 ,  G02B6/1226 ,  G11B5/3116 ,  G11B5/314 ,  G11B5/6088 ,  G11B2005/0021

    摘要： A thermally-assisted magnetic write head includes a waveguide, a magnetic pole, and a plasmon generator interposed between the waveguide and the magnetic pole. The magnetic pole includes a first surface exposed on an air bearing surface, a second surface facing the plasmon generator, and a third surface connecting the first surface and the second surface.

    摘要翻译： 一种热辅助磁写头包括插入在波导和磁极之间的波导，磁极和等离子体发生器。 磁极包括暴露在空气轴承表面上的第一表面，面向等离子体发生器的第二表面和连接第一表面和第二表面的第三表面。

    SYSTEMS AND METHODS FOR MONITORING THE POWER OF A LIGHT SOURCE UTILIZED IN ENERGY-ASSISTED MAGNETIC RECORDING
    5.
    发明申请
    SYSTEMS AND METHODS FOR MONITORING THE POWER OF A LIGHT SOURCE UTILIZED IN ENERGY-ASSISTED MAGNETIC RECORDING 有权
    用于监测能源辅助磁记录中使用的光源功率的系统和方法

    公开(公告)号：US20140269236A1

    公开(公告)日：2014-09-18

    申请号：US13797266

    申请日：2013-03-12

    申请人： WESTERN DIGITAL (FREMONT), LLC

    发明人： WILLIAM J. KOZLOVSKY ,  LEI WANG ,  ARKADI B. GOULAKOV ,  KHIEM BA DO

    IPC分类号： G11B13/04

    CPC分类号： G11B5/314 ,  G11B5/127 ,  G11B5/1475 ,  G11B5/3109 ,  G11B5/3176 ,  G11B5/3903 ,  G11B5/6088 ,  G11B2005/0021 ,  Y10T29/49032

    摘要： Aspects of the present invention relate to energy-assisted magnetic recording (EAMR), an EAMR assembly, and methods for fabricating the same. In several embodiments, an EAMR head includes a sub-mount on a slider that has a waveguide configured to receive light from a light source attached to a surface of the sub-mount. The waveguide receives the light at a top surface of the slider and routes the light to be near an air bearing surface (ABS) of the slider where energy of the light can be used to heat up a spot on a recording media disk that is proximate the ABS. The waveguide also routes a portion of the light back to the top surface of the slider where the light exits the waveguide and is detected by a light detector located along the surface of the sub-mount.

    摘要翻译： 本发明的方面涉及能量辅助磁记录（EAMR），EAMR组件及其制造方法。 在几个实施例中，EAMR头包括滑块上的子座，其具有被配置为接收来自附接到子座的表面的光源的光的波导。 波导接收滑块顶表面上的光，并将光线路靠近滑块的空气轴承表面（ABS），其中光的能量可用于加热接近的记录介质盘上的一个点 ABS。 波导还将光的一部分路线返回到滑块的顶表面，其中光离开波导并且由沿着子安装座的表面定位的光检测器检测。

    Damping control in magnetic nano-elements using ultrathin damping layer
    6.
    发明授权
    Damping control in magnetic nano-elements using ultrathin damping layer 失效
    使用超薄阻尼层对磁性纳米元件进行阻尼控制

    公开(公告)号：US08089723B2

    公开(公告)日：2012-01-03

    申请号：US11839034

    申请日：2007-08-15

    申请人： Manfred Ernst Schabes

    发明人： Manfred Ernst Schabes

    IPC分类号： G11B5/127 ,  G11B5/187

    CPC分类号： G11B31/02 ,  G11B5/3109 ,  G11B5/3146 ,  G11B5/3163

    摘要： A write head and a method for forming the write head. The method includes providing a first pole and a second pole for the write head. The first pole and the second pole are formed from a ferromagnetic material. Regions of the write head including at least a portion of at least one of the first pole and the second pole of the write head are volumetrically doped with a dopant material selected from one of a 4d transition metal, 5d transition metal, and 4f rare earth metal. The dopant material is predetermined to provide a magnetic damping in the doped regions which is greater than the magnetic damping in the ferromagnetic material.

    摘要翻译： 写头和形成写头的方法。 该方法包括为写入头提供第一极和第二极。 第一极和第二极由铁磁材料形成。 包括写头的第一极和第二极中的至少一个的至少一部分的写头的区域被体积掺杂有选自4d过渡金属，5d过渡金属和4f稀土中的一种的掺杂剂材料 金属。 掺杂剂材料是预定的，以在掺杂区域提供大于磁性材料中的磁阻尼的磁阻尼。

    Method of manufacturing a thin-film magnetic head
    7.
    发明授权
    Method of manufacturing a thin-film magnetic head 失效
    制造薄膜磁头的方法

    公开(公告)号：US07275305B2

    公开(公告)日：2007-10-02

    申请号：US10790049

    申请日：2004-03-02

    申请人： Yoshitaka Sasaki ,  Tohru Inoue

    发明人： Yoshitaka Sasaki ,  Tohru Inoue

    IPC分类号： G11B5/235 ,  C23C16/04

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G11B5/3109 ,  G11B5/313 ,  G11B5/3163 ,  G11B5/3903 ,  G11B5/3912 ,  G11B5/3967 ,  G11B2005/3996 ,  Y10T29/49021 ,  Y10T29/49032 ,  Y10T29/49034 ,  Y10T29/49039 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49053 ,  Y10T29/4906 ,  Y10T29/49062 ,  Y10T29/49064

    摘要： A method of manufacturing a thin-film magnetic head, the thin-film magnetic head including a magnetoresistive element, first and second shield layers for shielding the magnetoresistive element, a first shield gap film provided between the magnetoresistive element and the first shield layer, and a second shield gap film provided between the magnetoresistive element and the second shield layer. The method includes the steps of forming the first shield layer, forming the first shield gap film on the first shield layer, forming the magnetoresistive element on the first shield gap film, forming the second shield gap film on the magnetoresistive element, and forming the second shield layer on the second shield gap film. At least one of the first and second shield gap films is formed by stacking a plurality of insulating films formed by chemical vapor deposition.

    摘要翻译： 一种制造薄膜磁头的方法，所述薄膜磁头包括磁阻元件，用于屏蔽磁阻元件的第一和第二屏蔽层，设置在磁阻元件和第一屏蔽层之间的第一屏蔽间隙膜，以及 设置在磁阻元件和第二屏蔽层之间的第二屏蔽间隙膜。 该方法包括以下步骤：形成第一屏蔽层，在第一屏蔽层上形成第一屏蔽间隙膜，在第一屏蔽间隙膜上形成磁阻元件，在磁阻元件上形成第二屏蔽间隙膜，并形成第二屏蔽间隙膜 第二屏蔽间隔膜上的屏蔽层。 通过层叠通过化学气相沉积形成的多个绝缘膜来形成第一和第二屏蔽间隙膜中的至少一个。

    THIN FILM MAGNETIC HEAD HAVING RECORDING COIL AND METHOD OF FORMING RECORDING COIL
    9.
    发明申请
    THIN FILM MAGNETIC HEAD HAVING RECORDING COIL AND METHOD OF FORMING RECORDING COIL 审中-公开
    具有记录线圈的薄膜磁头和形成记录线圈的方法

    公开(公告)号：US20070121245A1

    公开(公告)日：2007-05-31

    申请号：US11564735

    申请日：2006-11-29

    申请人： Kiyoshi Kobayashi ,  Sumihito Morita

    发明人： Kiyoshi Kobayashi ,  Sumihito Morita

    IPC分类号： G11B5/127

    CPC分类号： G11B5/17 ,  G11B5/3109 ,  G11B5/3163

    摘要： Disclosed are a thin film magnetic head that has a recoding coil and a method of forming a recording coil can sufficiently achieve a cross-sectional area of the coil and reduce coil resistance. A recording coil of a thin film magnetic head is formed as follows. First, frames, which divide a coil forming area, are formed on the plating base film for forming a coil. Further, the plating base film exposed between the frames is etched, and etching rebounds the plating base film are re-attached to a frame side wall. Then, a nonmagnetic metal layer is formed by plating on the area divided by the frames. Accordingly, the recording coil that has a thickness at both end portions in a coil width direction that is larger than that of a central portion thereof is obtained.

    摘要翻译： 公开了一种具有记录线圈的薄膜磁头，并且形成记录线圈的方法可以充分实现线圈的横截面积并降低线圈电阻。 如下形成薄膜磁头的记录线圈。 首先，在用于形成线圈的电镀基底膜上形成分割线圈形成区域的框架。 此外，蚀刻在框架之间露出的电镀基膜，并且将镀覆基膜的蚀刻反弹重新附着到框架侧壁。 然后，通过电镀在由框架分割的区域上形成非磁性金属层。 因此，获得在线圈宽度方向上的两端部的厚度大于其中央部分的厚度的记录线圈。

    Method of manufacturing thin film magnetic head
    10.
    发明授权
    Method of manufacturing thin film magnetic head 有权
    制造薄膜磁头的方法

    公开(公告)号：US07210217B2

    公开(公告)日：2007-05-01

    申请号：US11230683

    申请日：2005-09-21

    申请人： Yoshitaka Sasaki ,  Takehiro Kamigama

    发明人： Yoshitaka Sasaki ,  Takehiro Kamigama

    IPC分类号： G11B5/127 ,  H04R31/00

    CPC分类号： G11B5/3967 ,  G11B5/17 ,  G11B5/3109 ,  G11B5/313 ,  G11B5/3136 ,  G11B5/3163 ,  H01F17/0013 ,  H01F41/042 ,  Y10T29/49034 ,  Y10T29/49043 ,  Y10T29/49044 ,  Y10T29/49046 ,  Y10T29/49048 ,  Y10T29/49052 ,  Y10T29/4906 ,  Y10T29/49062 ,  Y10T29/49064

    摘要： A wire gap film is formed on a flat coplanar surface formed on a bottom pole by a bottom track pole and a thin film coil, first and second magnetic material films constituting a top pole are formed on a flat surface of the thin film coil, and the first and second magnetic material films, write gap film and bottom track pole are partially removed forming a top track pole and trim structure. The thin film coil is formed by first and second thin film coil halves having self-aligned coil windings and have a CVD formed first conductive film, and an electrolytic plating formed second conductive film. A thin insulating film is interposed between successive coil windings of the first and second thin film coil halves. Jumper wirings, formed with the top pole, connect innermost and outermost coil windings of the first and second thin film coil halves respectively.

    摘要翻译： 在由底部磁极和薄膜线圈形成在底极上的平坦共面上形成线间隙膜，在薄膜线圈的平坦表面上形成构成顶极的第一和第二磁性体膜， 部分地去除第一和第二磁性材料膜，写间隙膜和底部磁极，形成顶部磁极和修整结构。 薄膜线圈由具有自对准线圈绕组的第一和第二薄膜线圈半部形成，并且具有CVD形成的第一导电膜，并且电解电镀形成第二导电膜。 在第一和第二薄膜线圈半部的连续的线圈之间插入薄的绝缘膜。 与顶极形成的跳线布线分别连接第一和第二薄膜线圈半部的最内侧和最外侧的线圈绕组。