利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

31 条记录 (耗时 0.027 秒)

    Method for grinding a bar of thin film magnetic elements utilizing a plurality of resistive films
    11.
    发明授权
    Method for grinding a bar of thin film magnetic elements utilizing a plurality of resistive films 有权
    利用多个电阻膜研磨棒状薄膜磁性元件的方法

    公开(公告)号：US07384327B2

    公开(公告)日：2008-06-10

    申请号：US11114035

    申请日：2005-04-26

    申请人： Yoshiyuki Mizoguchi ,  Kazuhide Yamada ,  Tsuyoshi Umehara ,  Nobuya Oyama ,  Soji Koide

    发明人： Yoshiyuki Mizoguchi ,  Kazuhide Yamada ,  Tsuyoshi Umehara ,  Nobuya Oyama ,  Soji Koide

    IPC分类号： B24B49/00 ,  G11B5/23 ,  G01R31/28

    CPC分类号： G11B5/3173 ,  B24B19/26 ,  G11B5/3163 ,  G11B5/3166 ,  Y10T29/49004 ,  Y10T29/49048

    摘要： A method is presented for grinding a surface of an elongate bar having a plurality of thin film magnetic elements aligned in a line, each of the thin film magnetic elements having a magnetoresistive sensor for reading a magnetic record from a recording medium and an inductive electromagnetic transducer for writing a magnetic record into the recording medium in a stacked structure, the surface of the bar being a grind surface so that it can be formed into an air-bearing surface by means of the grinding. The method has steps of providing first resistive films on the grind surface in advance along a first longitudinal line parallel to a longitudinal direction of the bar, and providing second resistive films on the grind surface in advance along a second longitudinal line parallel to the longitudinal direction of the bar. The method further has a step of grinding the grind surface while pressing the bar against a rotating grinding disc with the longitudinal direction of the bar positioned toward a radial direction of the grinding disc, measuring electric resistance values of the first and second resistive films, and controlling an amount that is ground of the grind surface in the longitudinal direction and a direction perpendicular to the longitudinal direction based on the electric resistance values of the first resistive film and the second resistive films.

    摘要翻译： 提出了一种用于研磨细长条的表面的方法，所述细长条的表面具有排列成一行的多个薄膜磁性元件，每个薄膜磁性元件具有用于从记录介质读取磁记录的磁阻传感器和感应电磁换能器 为了以堆叠的结构将磁记录写入记录介质中，该条的表面是研磨表面，使得其可以通过研磨形成为空气轴承表面。 该方法具有以下步骤：沿着平行于条的纵向方向的第一纵向线预先在研磨表面上提供第一电阻膜，并且沿平行于纵向的第二纵向线预先在研磨表面上提供第二电阻膜 的酒吧。 该方法还具有如下步骤：在将棒压靠在旋转的研磨盘上的条件下研磨研磨表面，其中杆的纵向朝向研磨盘的径向方向，测量第一和第二电阻膜的电阻值，以及 基于第一电阻膜和第二电阻膜的电阻值，控制研磨表面在纵向方向上的垂直于纵向的方向的磨削量。

    Head slider, glide height checking apparatus, and glide height checking method
    12.
    发明授权
    Head slider, glide height checking apparatus, and glide height checking method 有权
    头滑块，滑行高度检查装置和滑行高度检查方法

    公开(公告)号：US07770438B2

    公开(公告)日：2010-08-10

    申请号：US11819096

    申请日：2007-06-25

    申请人： Hiroshi Kiyono ,  Nobuya Oyama ,  Katsuki Kurihara ,  Noboru Yamanaka ,  Chung Keung Ho ,  Cheung Kwan Lau ,  Tatsushi Shimizu

    发明人： Hiroshi Kiyono ,  Nobuya Oyama ,  Katsuki Kurihara ,  Noboru Yamanaka ,  Chung Keung Ho ,  Cheung Kwan Lau ,  Tatsushi Shimizu

    IPC分类号： G11B21/12

    CPC分类号： G11B5/6076 ,  G11B5/3133 ,  G11B5/607

    摘要： The head slider has a plurality of heaters each heating a corresponding region of the ABS, and a sensor detecting collision of the ABS with a projection on a surface of the magnetic disk. Currents supplied to the respective heaters are controlled and produce heats independently of one another. The heats produce projections on the corresponding regions of the ABS, respectively. The ABS with asperity can be planarized through appropriately controlling magnitude of the currents supplied to the heaters. Thus, the variation of a sensor output depending on asperity of the ABS is effectively reduced. Another head slider has a heater locally heating a corresponding region of the ABS. The heater has a structure where a central portion is away from the ABS compared with end portions, or a structure where calorific power of a central portion is smaller than that of each of end portions. Thus, overall projection shape becomes flat.

    摘要翻译： 磁头滑动器具有多个加热器，每个加热器对应于ABS的相应区域，并且传感器检测ABS与磁盘表面上的突起的碰撞。 供应给相应加热器的电流被控制并且彼此独立地产生热量。 热量分别在ABS的相应区域上产生突起。 具有粗糙度的ABS可以通过适当地控制供给到加热器的电流的大小来平坦化。 因此，根据ABS的粗糙度的传感器输出的变化被有效地降低。 另一个头滑块具有加热器来对ABS的相应区域进行局部加热。 与端部相比，加热器具有中心部分远离ABS的结构，或者中心部分的发热量小于每个端部的发热量的结构。 因此，整体投影形状变平坦。

    Head slider and manufacturing method thereof
    14.
    发明授权
    Head slider and manufacturing method thereof 有权
    头滑块及其制造方法

    公开(公告)号：US07102856B2

    公开(公告)日：2006-09-05

    申请号：US10886719

    申请日：2004-07-09

    申请人： Soji Koide ,  Norikazu Ota ,  Nobuya Oyama ,  Tetsuro Sasaki

    发明人： Soji Koide ,  Norikazu Ota ,  Nobuya Oyama ,  Tetsuro Sasaki

    IPC分类号： G11B5/60

    CPC分类号： G11B5/6005 ,  G11B5/4826 ,  G11B5/6064

    摘要： The head slider in accordance with the present invention comprises a thin-film magnetic head including a magnetoresistive device and an electromagnetic transducer, and a heater adapted to generate heat upon energization. At least one of a reproducing bump, a recording bump, and a heater bump includes a bypass layer extending in a direction intersecting a bump extending direction, a first bump portion positioned closer to a pad-forming surface than is the bypass layer, and a second bump portion positioned on the side of the bypass layer opposite from the first bump portion. The first and second bump portions are displaced from each other in the bypass layer extending direction.

    摘要翻译： 根据本发明的磁头滑块包括具有磁阻装置和电磁换能器的薄膜磁头和适于在通电时产生热量的加热器。 再现凸块，记录凸块和加热器凸块中的至少一个包括沿与凸块延伸方向相交的方向延伸的旁路层，位于比旁路层更靠近焊盘形成表面的第一凸起部分，以及 位于与第一凸起部分相对的旁路层侧的第二凸起部分。 第一和第二凸起部分在旁路层延伸方向上彼此偏移。

    Magnetoresistive effect sensor, thin-film magnetic head with the sensor and manufacturing method of the thin-film magnetic head
    16.
    发明授权
    Magnetoresistive effect sensor, thin-film magnetic head with the sensor and manufacturing method of the thin-film magnetic head 有权
    磁阻效应传感器，具有传感器的薄膜磁头和薄膜磁头的制造方法

    公开(公告)号：US06270588B1

    公开(公告)日：2001-08-07

    申请号：US09272615

    申请日：1999-03-19

    申请人： Ken-ichi Takano ,  Masato Takahashi ,  Nobuya Oyama

    发明人： Ken-ichi Takano ,  Masato Takahashi ,  Nobuya Oyama

    IPC分类号： H01F1032

    CPC分类号： B82Y25/00 ,  B82Y10/00 ,  G01R33/09 ,  G11B5/3903 ,  G11B2005/3996 ,  H01F10/3268 ,  Y10T29/49034

    摘要： A thin-film magnetic head having a spin valve effect multi-layered structure including a non-magnetic electrically conductive material layer, first and second ferromagnetic material layers separated by the non-magnetic electrically conductive material layer, and an anti-ferromagnetic material layer formed adjacent to and in physical contact with one surface of the second ferromagnetic material layer. This one surface is an opposite side from the non-magnetic electrically conductive material layer and the multi-layered structure has ends at its track-width direction. The head also has longitudinal bias means formed at both the track-width ends of the multi-layered structure, for providing a longitudinal magnetic bias to the multi-layered structure. The multi-layered structure and the longitudinal bias means are formed such that an angle between a direction of exchange coupling magnetic bias in the second ferromagnetic material layer produced by the exchange coupling with the anti-ferromagnetic material layer and a direction of the longitudinal magnetic bias in the second ferromagnetic material layer is more than 90° in at least part of the second ferromagnetic material layer.

    摘要翻译： 具有自旋阀效应的多层结构的薄膜磁头，包括非磁性导电材料层，由非磁性导电材料层分隔开的第一和第二铁磁材料层以及形成的反铁磁材料层 与第二铁磁材料层的一个表面相邻并物理接触。 该一个表面是与非磁性导电材料层相反的一侧，并且多层结构在其轨道宽度方向上结束。 头部还具有形成在多层结构的轨道宽度端处的纵向偏置装置，用于向多层结构提供纵向磁偏置。 多层结构和纵向偏置装置形成为使得通过与反铁磁材料层的交换耦合产生的第二铁磁材料层中的磁偏压的耦合方向和纵向磁偏压的方向之间的角度 在第二铁磁材料层中的第二铁磁材料层的至少一部分中大于90°。

    Thin-film magnetic head, head gimbal assembly, and hard disk drive
    17.
    发明授权
    Thin-film magnetic head, head gimbal assembly, and hard disk drive 有权
    薄膜磁头，磁头万向节组件和硬盘驱动器

    公开(公告)号：US07180707B2

    公开(公告)日：2007-02-20

    申请号：US10780581

    申请日：2004-02-19

    申请人： Soji Koide ,  Norikazu Ota ,  Nobuya Oyama ,  Tetsuro Sasaki

    发明人： Soji Koide ,  Norikazu Ota ,  Nobuya Oyama ,  Tetsuro Sasaki

    IPC分类号： G11B5/39 ,  G11B21/02

    CPC分类号： G11B5/3967 ,  G11B5/3133 ,  G11B5/6064

    摘要： A thin-film magnetic head on a support includes an electromagnetic transducer for writing, a magnetoresistive device for reading, an overcoat layer and a heating element. The transducer and magnetoresistive device are disposed on the support. The overcoat layer is disposed at the opposite side of them from the support. The heating element is provided in the overcoat layer and generates heat when energized.

    摘要翻译： 载体上的薄膜磁头包括用于书写的电磁换能器，用于读取的磁阻装置，外涂层和加热元件。 传感器和磁阻装置设置在支撑件上。 外涂层与支撑体的相对侧设置。 加热元件设置在外涂层中，并在通电时产生热量。

    Head slider, head gimbal assembly, and hard disk drive
    18.
    发明授权
    Head slider, head gimbal assembly, and hard disk drive 有权
    头滑块，头万向节组件和硬盘驱动器

    公开(公告)号：US07113369B2

    公开(公告)日：2006-09-26

    申请号：US10764460

    申请日：2004-01-27

    申请人： Norikazu Ota ,  Tetsuro Sasaki ,  Nobuya Oyama ,  Soji Koide

    发明人： Norikazu Ota ,  Tetsuro Sasaki ,  Nobuya Oyama ,  Soji Koide

    IPC分类号： G11B5/60

    CPC分类号： G11B5/4853 ,  G11B5/6064

    摘要： In the head slider of the present invention, recording and reproducing electrode pads and heater electrode pads are attached to the same surface of an overcoat layer. The heater electrode pads are located on both sides of a group constituted by the recording and reproducing electrode pads. As a consequence, leads for the heater are located between respective leads for recording and reproducing head parts, whereby crosstalk can be prevented from occurring between the leads for the recording and reproducing head parts.

    摘要翻译： 在本发明的磁头滑块中，记录和再现电极焊盘和加热器电极焊盘附着在外涂层的相同表面上。 加热器电极焊盘位于由记录和再现电极焊盘构成的组的两侧。 因此，用于加热器的引线位于用于记录和再现头部的相应引线之间，从而可以防止在用于记录和再现头部的引线之间发生串扰。

    Head slider, glide height checking apparatus, and glide height checking method
    20.
    发明申请
    Head slider, glide height checking apparatus, and glide height checking method 有权
    头滑块，滑行高度检查装置和滑行高度检查方法

    公开(公告)号：US20080007871A1

    公开(公告)日：2008-01-10

    申请号：US11819096

    申请日：2007-06-25

    申请人： Hiroshi Kiyono ,  Nobuya Oyama ,  Katsuki Kurihara ,  Noboru Yamanaka ,  Chung Keung Ho ,  Cheung Kwan Lau ,  Tatsushi Shimizu

    发明人： Hiroshi Kiyono ,  Nobuya Oyama ,  Katsuki Kurihara ,  Noboru Yamanaka ,  Chung Keung Ho ,  Cheung Kwan Lau ,  Tatsushi Shimizu

    IPC分类号： G11B5/60

    CPC分类号： G11B5/6076 ,  G11B5/3133 ,  G11B5/607

    摘要： The head slider has a plurality of heaters each heating a corresponding region of the ABS, and a sensor detecting collision of the ABS with a projection on a surface of the magnetic disk. Currents supplied to the respective heaters are controlled and produce heats independently of one another. The heats produce projections on the corresponding regions of the ABS, respectively. The ABS with asperity can be planarized through appropriately controlling magnitude of the currents supplied to the heaters. Thus, the variation of a sensor output depending on asperity of the ABS is effectively reduced. Another head slider has a heater locally heating a corresponding region of the ABS. The heater has a structure where a central portion is away from the ABS compared with end portions, or a structure where calorific power of a central portion is smaller than that of each of end portions. Thus, overall projection shape becomes flat.

    摘要翻译： 磁头滑动器具有多个加热器，每个加热器对应于ABS的相应区域，并且传感器检测ABS与磁盘表面上的突起的碰撞。 供应给相应加热器的电流被控制并且彼此独立地产生热量。 热量分别在ABS的相应区域上产生突起。 具有粗糙度的ABS可以通过适当地控制供给到加热器的电流的大小来平坦化。 因此，根据ABS的粗糙度的传感器输出的变化被有效地降低。 另一个头滑块具有加热器来对ABS的相应区域进行局部加热。 与端部相比，加热器具有中心部分远离ABS的结构，或者中心部分的发热量小于每个端部的发热量的结构。 因此，整体投影形状变平坦。