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    Magnetic recording head with non-magnetic conductive structure
    21.
    发明授权
    Magnetic recording head with non-magnetic conductive structure 有权

    公开(公告)号：US11276422B2

    公开(公告)日：2022-03-15

    申请号：US17229560

    申请日：2021-04-13

    Applicant: Western Digital Technologies, Inc.

    Inventor： Quang Le ,  Michael Kuok San Ho ,  Suping Song ,  Goncalo Marcos Baião De Albuquerque

    IPC: G11B5/127 ,  G11B5/31 ,  G11B5/39 ,  G11B5/00

    Abstract: The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The head includes a trailing shield, a main pole, an STO disposed between the trailing shield and the main pole, and a non-magnetic conductive structure (or non-magnetic conductive layers) adjacent to the main pole and in contact with the STO. The non-magnetic conductive structure provides additional paths for electrical currents to flow to the STO. The non-magnetic conductive structure enables higher current density to the STO without creating hot spots at the MFS. Maximum current efficiency and uniformity can be achieved with the non-magnetic conductive structure.

    OPTICAL DEVICES FOR INDEPENDENT MOVEMENT CONTROL OF LENSES AND IMAGE SENSORS IN CAMERA SYSTEMS
    22.
    发明申请
    OPTICAL DEVICES FOR INDEPENDENT MOVEMENT CONTROL OF LENSES AND IMAGE SENSORS IN CAMERA SYSTEMS 有权

    公开(公告)号：US20210409600A1

    公开(公告)日：2021-12-30

    申请号：US16915723

    申请日：2020-06-29

    Applicant: Western Digital Technologies, Inc.

    Inventor： Quang Le ,  Zhigang BAI ,  Xiaoyong LIU ,  Zhanjie LI ,  Kuok San HO ,  Rajeev NAGABHIRAVA

    IPC: H04N5/232 ,  G02B7/09 ,  G03B13/36 ,  H02K41/035 ,  H04N5/225

    Abstract: Aspects of the present disclosure relate to optical devices and related methods that facilitate independent control of movement of lenses and image sensors in camera systems. In one example, an image sensor is movable independently of and relative to a lens, and the lens is movable independently of the image sensor. In one example, an optical device includes a lens, and an image sensor disposed below the lens. The image sensor is movable relative to the lens. The optical device includes a plurality of magnets disposed about the lens, a plurality of vertical coil structures coiled in one or more vertical planes, and one or more horizontal coil structures coiled in one or more horizontal planes. The plurality of vertical coil structures are configured to, when powered, move the image sensor relative to the lens. The one or more horizontal coil structures are configured to, when powered, move the lens.

    Tape head with side-shielded writers and process for making same
    26.
    发明授权
    Tape head with side-shielded writers and process for making same 有权

    公开(公告)号：US11776565B2

    公开(公告)日：2023-10-03

    申请号：US17647809

    申请日：2022-01-12

    Applicant: Western Digital Technologies, Inc.

    Inventor： Quang Le ,  Hongquan Jiang ,  Cherngye Hwang ,  David J. Seagle ,  Xiaoyong Liu

    IPC: G11B5/11 ,  G11B5/31

    CPC classification number: G11B5/11 ,  G11B5/3133

    Abstract: The present disclosure generally relates to a tape head of a tape drive, and methods of forming thereof. In one embodiment, a tape head for magnetic storage devices comprises a trailing shield, a leading shield, a first write pole coupled to the trailing shield, a second write pole coupled to the leading shield, and side shields spaced from the first write pole and the second write pole by a thin insulation layer. The side shields are further disposed between the trailing shield and the leading shield. In another embodiment, a tape head for magnetic storage devices comprises a main pole disposed between a trailing shield and a leading shield and a side shield disposed adjacent to the main pole. The side shield is further disposed between the trailing shield and the leading shield and spaced from the main pole by a thin insulation layer.

    Areal density capability improvement with a main pole skin
    27.
    发明授权
    Areal density capability improvement with a main pole skin 有权

    公开(公告)号：US11682418B2

    公开(公告)日：2023-06-20

    申请号：US17868586

    申请日：2022-07-19

    Applicant: Western Digital Technologies, Inc.

    Inventor： Suping Song ,  Zhanjie Li ,  Michael Kuok San Ho ,  Quang Le ,  Alexander M. Zeltser

    IPC: G11B5/127 ,  G11B5/31 ,  G11B5/23

    CPC classification number: G11B5/1278 ,  G11B5/23 ,  G11B5/315 ,  G11B5/3116

    Abstract: The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The head includes a main pole at a media facing surface (MFS), a trailing shield at the MFS, and a heavy metal layer disposed between the main pole and the trailing shield at the MFS. Spin-orbit torque (SOT) is generated from the heavy metal layer and transferred to a surface of the main pole as a current passes through the heavy metal layer in a cross-track direction. The SOT executes a torque on the surface magnetization of the main pole, which reduces the magnetic flux shunting from the main pole to the trailing shield. With the reduced magnetic flux shunting from the main pole to the trailing shield, write-ability is improved.

    Low-Power, Fast-Response Machine Learning Autofocus Enhancements
    29.
    发明申请
    Low-Power, Fast-Response Machine Learning Autofocus Enhancements 有权

    公开(公告)号：US20220417442A1

    公开(公告)日：2022-12-29

    申请号：US17849462

    申请日：2022-06-24

    Applicant: Western Digital Technologies, Inc.

    Inventor： Quang Le ,  Rajeev Nagabhirava ,  Kuok San Ho ,  Daniel Bai ,  Xiaoyong Liu

    IPC: H04N5/232

    Abstract: Computing devices, such as mobile computing devices, have access to one or more image sensors that can capture images with multiple subjects. Some of these subjects may be known to the user capturing an image with the image sensor. The user may prefer to have the captured image data be optimized around the known subjects. Low-power, fast-response machine learning logic can be configured to allow for the generation of a plurality of inference data. This inference data can be utilized along with other sensor data, such as a motion sensor, for the generation of one or more image sensor configuration changes that may be implemented to optimize the subsequent capture of image data. This cycle of image data analysis, image sensor optimization, and subsequent capture can continue multiple times until a threshold of optimization or time is met. The captured image data optimized around the known subjects is then stored.

    Areal density capability improvement with a main pole skin
    30.
    发明授权
    Areal density capability improvement with a main pole skin 有权

    公开(公告)号：US11437058B2

    公开(公告)日：2022-09-06

    申请号：US17330176

    申请日：2021-05-25

    Applicant: Western Digital Technologies, Inc.

    Inventor： Suping Song ,  Zhanjie Li ,  Michael Kuok San Ho ,  Quang Le ,  Alexander M. Zeltser

    IPC: G11B5/127 ,  G11B5/31 ,  G11B5/23

    Abstract: The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic recording head. The head includes a main pole at a media facing surface (MFS), a trailing shield at the MFS, and a heavy metal layer disposed between the main pole and the trailing shield at the MFS. Spin-orbit torque (SOT) is generated from the heavy metal layer and transferred to a surface of the main pole as a current passes through the heavy metal layer in a cross-track direction. The SOT executes a torque on the surface magnetization of the main pole, which reduces the magnetic flux shunting from the main pole to the trailing shield. With the reduced magnetic flux shunting from the main pole to the trailing shield, write-ability is improved.

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