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    HEAD ASSEMBLY HAVING A SENSING ELEMENT
    1.
    发明申请
    HEAD ASSEMBLY HAVING A SENSING ELEMENT 有权
    具有传感元件的头部组件

    公开(公告)号：US20090262460A1

    公开(公告)日：2009-10-22

    申请号：US12491605

    申请日：2009-06-25

    申请人： Jorge Vicente Hanchi ,  Dian Song ,  John Stuart Wright ,  Andrew D. White

    发明人： Jorge Vicente Hanchi ,  Dian Song ,  John Stuart Wright ,  Andrew D. White

    IPC分类号： G11B5/60

    CPC分类号： G11B5/582 ,  G11B5/3133 ,  G11B5/40 ,  G11B5/5552 ,  G11B5/6005 ,  G11B5/6064

    摘要： A head or slider having a sensor element to detect changes in head-media spacing is disclosed. In illustrated embodiments the sensor element includes a piezoelectric sensor layer or similar layer that provides acoustic emission or vibration responsive to changes in head-media spacing. In illustrated embodiments, the sensor element is located proximate to the close point of the head and slider. In embodiments described in the specification, output from the sensor element is utilized to energize a heating element or microactuator to control pole tip protrusion or actuation of transducer elements responsive to changes in head-media spacing.

    摘要翻译： 公开了一种头部或滑块，其具有用于检测头部 - 介质间隔的变化的传感器元件。 在所示实施例中，传感器元件包括响应于头部 - 媒体间隔的改变而提供声发射或振动的压电传感器层或类似层。 在所示实施例中，传感器元件位于头部和滑块的接近点附近。 在说明书中描述的实施例中，来自传感器元件的输出用于激励加热元件或微型致动器，以响应于头部 - 介质间隔的变化来控制极尖突出或致动换能器元件。

    Head assembly having a sensing element
    2.
    发明授权
    Head assembly having a sensing element 有权
    头组件具有传感元件

    公开(公告)号：US08310779B2

    公开(公告)日：2012-11-13

    申请号：US12491605

    申请日：2009-06-25

    申请人： Jorge Vicente Hanchi ,  Dian Song ,  John Stuart Wright ,  Andrew D. White

    发明人： Jorge Vicente Hanchi ,  Dian Song ,  John Stuart Wright ,  Andrew D. White

    IPC分类号： G11B21/02 ,  G11B27/36 ,  G11B5/56

    CPC分类号： G11B5/582 ,  G11B5/3133 ,  G11B5/40 ,  G11B5/5552 ,  G11B5/6005 ,  G11B5/6064

    摘要： A head or slider having a sensor element to detect changes in head-media spacing is disclosed. In illustrated embodiments the sensor element includes a piezoelectric sensor layer or similar layer that provides acoustic emission or vibration responsive to changes in head-media spacing. In illustrated embodiments, the sensor element is located proximate to the close point of the head and slider. In embodiments described in the specification, output from the sensor element is utilized to energize a heating element or microactuator to control pole tip protrusion or actuation of transducer elements responsive to changes in head-media spacing.

    摘要翻译： 公开了一种头部或滑块，其具有用于检测头部 - 媒体间隔的变化的传感器元件。 在所示实施例中，传感器元件包括响应于头部 - 媒体间隔的改变而提供声发射或振动的压电传感器层或类似层。 在所示实施例中，传感器元件位于头部和滑块的接近点附近。 在说明书中描述的实施例中，来自传感器元件的输出用于激励加热元件或微型致动器，以响应于头部 - 介质间隔的变化来控制极尖突出或致动换能器元件。

    Head assembly having a sensing element to provide feedback for head-media instability
    3.
    发明授权
    Head assembly having a sensing element to provide feedback for head-media instability 有权
    头部组件具有传感元件以提供头部 - 介质不稳定性的反馈

    公开(公告)号：US07564649B2

    公开(公告)日：2009-07-21

    申请号：US11115659

    申请日：2005-04-27

    申请人： Jorge Vicente Hanchi ,  Dian Song ,  John Stuart Wright ,  Andrew D. White

    发明人： Jorge Vicente Hanchi ,  Dian Song ,  John Stuart Wright ,  Andrew D. White

    IPC分类号： G11B5/56 ,  G11B21/02 ,  G11B5/60

    CPC分类号： G11B5/6005 ,  G11B5/6058 ,  G11B5/607 ,  G11B5/6076

    摘要： A head assembly having a sensor element on the head assembly. Embodiments of the sensor element are configured to detect non-contact induced head-media interface instability, “onset of contact” or low level interference. The non-contact head-media instability or interference is detected based upon sensor feedback relating to excitation of the air bearing resonance modes of the slider body. In embodiments of the present invention, the sensor head assembly includes a microactuator which is energizable to microactuate the head or transducer elements on the head assembly.

    摘要翻译： 头部组件，其在头部组件上具有传感器元件。 传感器元件的实施例被配置为检测非接触感应的头 - 媒体界面不稳定性，“接触开始”或低电平干扰。 基于与滑块体的空气轴承共振模式的激励有关的传感器反馈来检测非接触式头 - 介质不稳定性或干扰。 在本发明的实施例中，传感器头组件包括微型致动器，微致动器可激励以微头对头部组件上的头部或换能器元件进行微生物处理。

    Head to disc interface tunneling giant magnetoresistive sensor
    5.
    发明授权
    Head to disc interface tunneling giant magnetoresistive sensor 有权
    头盘式接口隧道式巨磁阻传感器

    公开(公告)号：US07522380B2

    公开(公告)日：2009-04-21

    申请号：US11152471

    申请日：2005-06-14

    申请人： Dian Song

    发明人： Dian Song

    IPC分类号： G11B5/127

    CPC分类号： G11B5/3909 ,  B82Y10/00 ,  G11B5/1278 ,  G11B5/3903 ,  G11B5/3967 ,  G11B5/743

    摘要： A transducer for magnetically reading and writing information is disclosed. The present invention eases the intricate process of wafer thin film deposition and bar lapping by proposing a transducer including a first and second member, both of which perform the reading and writing function of the transducer. The present invention provides a transducer with greatly improved magnetic efficiency by probing the media magnetization directly. The structure is inherently stable due to shape anisotropy of the members and the closure of magnetic flux at the ends of each member.

    摘要翻译： 公开了用于磁读取和写入信息的换能器。 本发明通过提出一种包括第一和第二构件的换能器来实现晶片薄膜沉积和棒研磨的复杂过程，两者都执行换能器的读和写功能。 本发明提供一种通过直接探测介质磁化强度而大大提高磁效率的传感器。 该结构由于构件的形状各向异性和每个构件的端部处的磁通的闭合而固有地稳定。

    Enhanced magnetic sensor biasing yoke
    7.
    发明授权
    Enhanced magnetic sensor biasing yoke 有权
    增强磁传感器偏压轭

    公开(公告)号：US08803519B2

    公开(公告)日：2014-08-12

    申请号：US13194782

    申请日：2011-07-29

    申请人： Dimitar V. Dimitrov ,  Dian Song ,  Jason B. Gadbois

    发明人： Dimitar V. Dimitrov ,  Dian Song ,  Jason B. Gadbois

    IPC分类号： G01R33/09

    CPC分类号： G01R33/093 ,  G01R33/098

    摘要： An apparatus and associated method are generally directed to a magnetic sensor. A sensor may have a stack with an air bearing surface (ABS) and a biasing surface opposite the ABS. A biasing yoke can be disposed between a biasing magnet and the stack with the biasing magnet having a lower magnet moment than the biasing yoke.

    摘要翻译： 一种装置和相关方法通常涉及磁传感器。 传感器可具有具有空气轴承表面（ABS）和与ABS相对的偏置表面的堆叠。 偏置磁轭可以设置在偏置磁体和堆叠之间，偏置磁体具有比偏置磁轭低的磁矩。

    MAGNETIC ELEMENT WITH BIASED SIDE SHIELD LAMINATION
    10.
    发明申请
    MAGNETIC ELEMENT WITH BIASED SIDE SHIELD LAMINATION 有权
    具有偏置侧面屏蔽层的磁性元件

    公开(公告)号：US20140002930A1

    公开(公告)日：2014-01-02

    申请号：US13539099

    申请日：2012-06-29

    申请人： Dimitar Velikov Dimitrov ,  Dian Song ,  Mark William Covington

    发明人： Dimitar Velikov Dimitrov ,  Dian Song ,  Mark William Covington

    IPC分类号： G11B5/60

    CPC分类号： G11B5/3912 ,  G11B5/398

    摘要： A magnetic element is generally provided that can be implemented as a transducing head. Various embodiments may configure a magnetic stack having a magnetically free layer with a predetermined magnetization. A side shield lamination can be separated from the magnetic stack on an air hearing surface (ABS) and biased to a bias magnetization that opposes the predetermined magnetization.

    摘要翻译： 通常提供可以实现为换能头的磁性元件。 各种实施例可以构造具有预定磁化强度的磁性层的磁性堆叠。 侧屏蔽叠片可以与空气听觉表面（ABS）上的磁性堆叠分离，并被偏压到与预定磁化相对的偏置磁化强度。