知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

20 records (took 0.031 seconds)

    Light mitigation layer between write pole and waveguide
    2.
    发明授权
    Light mitigation layer between write pole and waveguide 有权
    写极和波导之间的光缓解层

    公开(公告)号：US08873352B1

    公开(公告)日：2014-10-28

    申请号：US14206683

    申请日：2014-03-12

    Applicant: Seagate Technology LLC

    Inventor： Zoran Jandric ,  Chris Rea ,  Pierre Asselin ,  Michael Thomas Johnson ,  Manuel Charles Anaya-Dufresne ,  John C. Duda

    IPC: G11B11/00

    CPC classification number: G11B5/6088 ,  G11B5/3133 ,  G11B5/314 ,  G11B2005/0021

    Abstract: An apparatus has a near-field transducer located proximate a media-facing surface of a slider magnetic recording heat. A waveguide is configured to couple light to the near-field transducer and includes a top cladding layer facing the near-field transducer, a bottom cladding layer, and a core layer between the top and bottom cladding layers. The apparatus includes a write pole with a flat portion substantially parallel to the core layer and a sloped portion extending from the flat portion of the write pole towards the media-facing surface at an angle to the core layer and to the media-facing surface. A light mitigation layer is located between the top cladding layer and the write pole.

    Abstract translation: 一种装置具有靠近滑块磁记录热的面向介质表面的近场换能器。 波导被配置为将光耦合到近场换能器并且包括面向近场换能器的顶部覆层，底部包层以及在顶部和底部包层之间的芯层。 该装置包括具有基本上平行于芯层的平坦部分的写入极和从写入极的平坦部分朝着与介质相对的表面以与芯层成一定角度延伸到介质面向表面的倾斜部分。 光缓解层位于顶包层和写柱之间。

    Split contact sensor for a heat-assisted magnetic recording slider
    3.
    发明授权
    Split contact sensor for a heat-assisted magnetic recording slider 有权

    公开(公告)号：US10657991B2

    公开(公告)日：2020-05-19

    申请号：US16524512

    申请日：2019-07-29

    Applicant: Seagate Technology LLC

    Inventor： Erik Jon Hutchinson ,  Declan Macken ,  Manuel Charles Anaya-Dufresne

    IPC: G11B11/105 ,  G11B5/31 ,  G11B5/48 ,  G11B5/60 ,  G11B5/00

    Abstract: An apparatus comprises a slider having an air bearing surface (ABS), a leading edge, and a trailing edge opposing the leading edge. A writer having a write pole is situated at or near the ABS. A near-field transducer (NFT) is situated at or near the ABS and between the write pole and the leading edge of the slider. An optical waveguide is configured to couple light from a laser source to the NFT. A contact sensor is situated between the write pole and the trailing edge. The contact sensor comprises a first ABS section situated at or near the ABS, a secondABS section situated at or near the ABS and spaced apart from the first ABS in a cross-track direction by a gap, and a distal section extending away from the ABS and connecting the first ABS section with the second ABS section.

    SPLIT CONTACT SENSOR FOR A HEAT-ASSISTED MAGNETIC RECORDING SLIDER
    4.
    发明申请
    SPLIT CONTACT SENSOR FOR A HEAT-ASSISTED MAGNETIC RECORDING SLIDER 审中-公开

    公开(公告)号：US20200090686A1

    公开(公告)日：2020-03-19

    申请号：US16524512

    申请日：2019-07-29

    Applicant: Seagate Technology LLC

    Inventor： Erik Jon Hutchinson ,  Declan Macken ,  Manuel Charles Anaya-Dufresne

    IPC: G11B5/31 ,  G11B5/48 ,  G11B5/60

    Abstract: An apparatus comprises a slider having an air bearing surface (ABS), a leading edge, and a trailing edge opposing the leading edge. A writer having a write pole is situated at or near the ABS. A near-field transducer (NFT) is situated at or near the ABS and between the write pole and the leading edge of the slider. An optical waveguide is configured to couple light from a laser source to the NFT. A contact sensor is situated between the write pole and the trailing edge. The contact sensor comprises a first ABS section situated at or near the ABS, a secondABS section situated at or near the ABS and spaced apart from the first ABS in a cross-track direction by a gap, and a distal section extending away from the ABS and connecting the first ABS section with the second ABS section.

    Split contact sensor for a heat-assisted magnetic recording slider
    8.
    发明授权
    Split contact sensor for a heat-assisted magnetic recording slider 有权

    公开(公告)号：US11011191B2

    公开(公告)日：2021-05-18

    申请号：US16854403

    申请日：2020-04-21

    Applicant: Seagate Technology LLC

    Inventor： Erik Jon Hutchinson ,  Declan Macken ,  Manuel Charles Anaya-Dufresne

    IPC: G11B11/105 ,  G11B5/31 ,  G11B5/48 ,  G11B5/60 ,  G11B5/00

    Abstract: An apparatus comprises a slider having an air bearing surface (ABS), a leading edge, and a trailing edge opposing the leading edge. A writer having a write pole is situated at or near the ABS. A near-field transducer (NFT) is situated at or near the ABS and between the write pole and the leading edge of the slider. An optical waveguide is configured to couple light from a laser source to the NFT. A contact sensor is situated between the write pole and the trailing edge. The contact sensor comprises a first ABS section situated at or near the ABS, a second ABS section situated at or near the ABS and spaced apart from the first ABS in a cross-track direction by a gap, and a distal section extending away from the ABS and connecting the first ABS section with the second ABS section.

    RESISTIVE TEMPERATURE SENSORS FOR IMPROVED ASPERITY, HEAD-MEDIA SPACING, AND/OR HEAD-MEDIA CONTACT DETECTION
    9.
    发明申请
    RESISTIVE TEMPERATURE SENSORS FOR IMPROVED ASPERITY, HEAD-MEDIA SPACING, AND/OR HEAD-MEDIA CONTACT DETECTION 审中-公开
    电阻温度传感器用于改进的平台，头部介质间隔和/或头部介质接触检测

    公开(公告)号：US20160372144A1

    公开(公告)日：2016-12-22

    申请号：US15251663

    申请日：2016-08-30

    Applicant: Seagate Technology LLC

    Inventor： Manuel Charles Anaya-Dufresne ,  Brian William Karr ,  Gary Joseph Kunkel ,  Zhen Wei

    IPC: G11B5/60

    CPC classification number: G11B5/607 ,  G01K13/00 ,  G11B5/024 ,  G11B5/3133 ,  G11B5/6011 ,  G11B5/6076 ,  G11B7/0948 ,  G11B7/121 ,  G11B20/10 ,  G11B27/36

    Abstract: A sensor supported by a head transducer has a temperature coefficient of resistance (TCR) and a sensor resistance. The sensor operates at a temperature above ambient and is responsive to changes in sensor-medium spacing. Conductive contacts connected to the sensor have a contact resistance and a cross-sectional area adjacent to the sensor larger than that of the sensor, such that the contact resistance is small relative to the sensor resistance and negligibly contributes to a signal generated by the sensor. A multiplicity of head transducers each support a TCR sensor and a power source can supply bias power to each sensor of each head to maintain each sensor at a fixed temperature above an ambient temperature in the presence of heat transfer changes impacting the sensors. A TCR sensor of a head transducer can include a track-oriented TCR sensor wire for sensing one or both of asperities of the medium.

    Abstract translation: 由头部换能器支撑的传感器具有电阻温度系数（TCR）和传感器电阻。 传感器在高于环境温度的温度下工作，并响应传感器 - 介质间距的变化。 连接到传感器的导电触头具有与传感器相邻的接触电阻和与传感器相邻的横截面面积，使得接触电阻相对于传感器电阻较小，并且对传感器产生的信号可忽略不计。 多个头传感器各自支持TCR传感器，并且电源可以向每个头部的每个传感器提供偏置功率，以在存在影响传感器的热传递变化的情况下将每个传感器维持在高于环境温度的固定温度。 头传感器的TCR传感器可以包括用于感测介质的粗糙体中的一个或两个的面向轨道的TCR传感器线。

Patent Agency Ranking