Patents by Inventor Quang Le

Quang Le has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11514932
    Abstract: The present disclosure generally relates to magnetic storage devices, such as magnetic tape drives, comprising a read head. The read head comprises a plurality of read sensors disposed between a lower shield having a first width in a stripe height direction and an upper shield. The plurality of read sensors comprise an antiferromagnetic layer and a free layer comprising a first layer and a second layer. A plurality of soft bias side shields disposed adjacent to and outwardly of the plurality of read sensors in a cross-track direction, each of the plurality of soft bias side shields having a second width in the stripe height direction less than the first width. Each of the plurality of soft bias side shields are spaced a first distance from the lower shield and a second distance from the upper shield, the first distance being substantially equal to the second distance.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: November 29, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Quang Le, Hongquan Jiang, Hisashi Takano, Cherngye Hwang, Xiaoyong Liu
  • Patent number: 11514936
    Abstract: The present disclosure relates to read head apparatus, and methods of forming read head apparatus, for magnetic storage devices, such as magnetic tape drives (e.g., tape drives). In one implementation, a read head for magnetic storage devices includes a lower shield, an upper shield, one or more lower leads, and a plurality of upper leads. The read head includes a plurality of read sensors, each read sensor of the plurality of read sensors including a first antiferromagnetic (AFM) layer. The read head includes a plurality of soft bias side shields disposed between and outwardly of the plurality of read sensors. The read head includes a plurality of second AFM layers disposed below the plurality of soft bias side shields along a downtrack direction.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: November 29, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Quang Le, Hongquan Jiang, Cherngye Hwang, Hisashi Takano
  • Publication number: 20220366473
    Abstract: An information processing system acquires an action history including at least one of a purchase history including an item purchased by a user and a browsing history including an item browsed by the user, selects one or more items from the plurality of items as a first item by a first selection method based on the acquired action history, selects one or more items from the plurality of items as a second item by a second selection method different from the first selection method based on the acquired action history, and adds the first item and the second item to the same list.
    Type: Application
    Filed: September 29, 2021
    Publication date: November 17, 2022
    Applicant: Rakuten Group, Inc.
    Inventors: Neil PRIMOZICH, Josue SIOW, Vincent MICHEL, Yannick SCHWARTZ, Mohamed Ali JAMAOUI, Mederich BESNARD, Karl POTISEPP, Julien NIVET, Phuc Quang LE, Haekyung WON, Mahesh SHINDE, Gilles DARTIGUELONGUE, Jiahong CHEN
  • Publication number: 20220358957
    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.
    Type: Application
    Filed: July 19, 2022
    Publication date: November 10, 2022
    Applicant: Western Digital Technologies, Inc.
    Inventors: Suping SONG, Zhanjie LI, Kuok San HO, Quang LE, Alexander M. ZELTSER
  • Patent number: 11495741
    Abstract: A SOT device includes a bismuth antimony dopant element (BiSbE) alloy layer over a substrate. The BiSbE alloy layer is used as a topological insulator. The BiSbE alloy layer includes bismuth, antimony, AND a dopant element. The dopant element is a non-metallic dopant element, a metallic dopant element, and combinations thereof. Examples of metallic dopant elements include Ni, Co, Fe, CoFe, NiFe, NiCo, NiCu, CoCu, NiAg, CuAg, Cu, Al, Zn, Ag, Ga, In, or combinations thereof. Examples of non-metallic dopant elements include Si, P, Ge, or combinations thereof. The BiSbE alloy layer can include a plurality of BiSb lamellae layers and one or more dopant element lamellae layers. The BiSbE alloy layer has a (012) orientation.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: November 8, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Brian R. York, Cherngye Hwang, Alan Spool, Michael Gribelyuk, Quang Le
  • Patent number: 11489108
    Abstract: A spin-orbit torque (SOT) magnetic tunnel junction (MTJ) device includes a substrate, a seed layer over the substrate, and a bismuth antimony (BiSb) layer having (0120) orientation on the seed layer. The seed layer includes a silicide layer and a surface control layer. The silicide layer includes a material of NiSi, NiFeSi, NiFeTaSi, NiCuSi, CoSi, CoFeSi, CoFeTaSi, CoCuSi, or combinations thereof. The surface control layer includes a material of NiFe, NiFeTa, NiTa, NiW, NiFeW, NiCu, NiCuM, NiFeCu, CoTa, CoFeTa, NiCoTa, Co, CoM, CoNiM, CoNi, NiSi, CoSi, NiCoSi, Cu, CuAgM, CuM, or combinations thereof, in which M is Fe, Cu, Co, Ta, Ag, Ni, Mn, Cr, V, Ti, or Si.
    Type: Grant
    Filed: April 28, 2020
    Date of Patent: November 1, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Quang Le, Cherngye Hwang, Brian R. York, Andrew Chen, Thao A. Nguyen, Yongchul Ahn, Xiaoyong Liu, Hongquan Jiang, Zheng Gao, Kuok San Ho
  • Patent number: 11476409
    Abstract: A MRAM device includes a magnetic tunnel junction containing a reference layer having a fixed magnetization direction, a free layer, and a nonmagnetic tunnel barrier layer located between the reference layer and the free layer, a negative-magnetic-anisotropy assist layer having negative magnetic anisotropy that provides an in-plane magnetization within a plane that is perpendicular to the fixed magnetization direction, and a first nonmagnetic spacer layer located between the free layer and the negative-magnetic-anisotropy assist layer.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: October 18, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Quang Le, Zhanjie Li, Zhigang Bai, Paul VanderHeijden, Michael Ho
  • Patent number: 11468604
    Abstract: The present disclosure is directed to providing a notification in association with an augmented reality (AR) view. In particular, one or more computing devices can generate, for display by at least one of the computing device(s), an interface depicting an AR view of at least a portion of a physical real-world environment. In accordance with aspects of the disclosure, based at least in part on detected movement of the at least one of the computing device(s), the computing device(s) can transition amongst multiple different stages of one or more elements included in the interface to notify a viewer of the interface to mind their situational awareness of the physical real-world environment.
    Type: Grant
    Filed: June 25, 2019
    Date of Patent: October 11, 2022
    Assignee: GOOGLE LLC
    Inventors: Robert Carl Jagnow, Joanna Kim, Catherine Most, Andre Quang Le, Alex Jacobo-Blonder, Kasey Klimes, Dominik Kaeser, Rachel Elizabeth Inman
  • Patent number: 11437058
    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.
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: September 6, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Suping Song, Zhanjie Li, Michael Kuok San Ho, Quang Le, Alexander M. Zeltser
  • Patent number: 11437061
    Abstract: The present disclosure relates to read head apparatus, and methods of forming read head apparatus, for magnetic storage devices, such as magnetic tape drives (e.g., tape drives). In one implementation, a read head for magnetic storage devices includes a lower shield, one or more upper shields, one or more lower leads, and a plurality of upper leads. The read head includes a plurality of read sensors, each read sensor of the plurality of read sensors including a first antiferromagnetic (AFM) layer. The read head includes a plurality of soft bias side shields disposed between and outwardly of the plurality of read sensors. The read head includes one or more second AFM layers disposed above the first AFM layer and the plurality of soft bias side shields along a downtrack direction.
    Type: Grant
    Filed: June 25, 2021
    Date of Patent: September 6, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Quang Le, Hongquan Jiang, Cherngye Hwang, Hisashi Takano
  • Patent number: 11430469
    Abstract: The present disclosure generally relates to a magnetic media drive employing a magnetic recording head. The magnetic recording head comprises a first write head, a second write head, at least one read head, and a thermal fly height control element. The first write head is a wide writing write head comprising a first main pole and a first trailing shield. The second write head a narrow writing write head comprising a second main pole, a trailing gap, a second trailing shield, and one or more side shields. The first main pole has a shorter height and a greater width than the second main pole. The second main pole has a curved or U-shaped surface disposed adjacent to the trailing gap. The thermal fly height control element and the at least one read head are aligned with a center axis of the second main pole of the second write head.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: August 30, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Thao A. Nguyen, Michael Kuok San Ho, Zhigang Bai, Zhanjie Li, Quang Le
  • Patent number: 11404080
    Abstract: The present disclosure generally relates to a magnetic media drive employing a magnetic recording head. The magnetic recording head comprises a first write head and a second write head each coupled to a first pad and a second pad of a slider pad and an electrical circuit coupled to the first and second pads. The first write head is a wide writing write head, and the second write head a narrow writing write head. The electrical circuit comprises a first sub-circuit and a second sub-circuit connected in parallel. The first sub-circuit comprises a capacitor and a connection to a first thermal fly height control (TFC) of the first write head. The second sub-circuit comprises an inductor and a connection to a second TFC of the second write head. The electrical circuit is further connected to a third TFC of a read head, the second write head comprising the read head.
    Type: Grant
    Filed: July 20, 2021
    Date of Patent: August 2, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Quang Le, Jih-Shiuan Luo, Thao A. Nguyen, Kuok San Ho
  • Patent number: 11393516
    Abstract: An apparatus is provided that includes an array including m rows and n columns of nodes. Each column of nodes is coupled to one of n first conductive lines, and each row of nodes is coupled to one of m second conductive lines. Each node of the m rows and n columns of nodes includes a spin orbit torque-based spin torque oscillator circuit configured to oscillate at a corresponding intrinsic frequency. The spin orbit torque-based spin torque oscillator circuits are configured to generate m output signals at the m second conductive lines upon application of n input signals to corresponding n first conductive lines. The n input signals correspond to an n-element input vector, and each input signal includes a corresponding input signal frequency. Each of the m output signals include frequency domain components at the input signal frequencies.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: July 19, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Thao A. Nguyen, Michael Ho, Xiaoyong Liu, Zhigang Bai, Zhanjie Li, Quang Le, Yongchul Ahn, Hongquan Jiang
  • Patent number: 11394865
    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.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: July 19, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Quang Le, Rajeev Nagabhirava, Kuok San Ho, Daniel Bai, Xiaoyong Liu
  • Publication number: 20220173887
    Abstract: An online identity can be verified based on data from multiple identity sources stored in a blockchain. For example, a request for a token is received from an entity for authenticating an online identity of the entity to an online service. The request can be stored in a blockchain that represents the online identity of the entity by adding a new block to the blockchain. The new block can include data indicating the request for the token. The token can be generated based on the one or more ordered blocks in the blockchain. The token can be transmitted to the entity. The token can be received from the online service. Confirmation of the online identity of the entity can be transmitted to the online service based on receiving the token from the online service.
    Type: Application
    Filed: February 17, 2022
    Publication date: June 2, 2022
    Inventors: Sri KRISHNAMACHARYA, Quang LE, Stan TIGRETT, Russ AYRES
  • Publication number: 20220122647
    Abstract: An apparatus is provided that includes an array including m rows and n columns of nodes. Each column of nodes is coupled to one of n first conductive lines, and each row of nodes is coupled to one of m second conductive lines. Each node of the m rows and n columns of nodes includes a spin orbit torque-based spin torque oscillator circuit configured to oscillate at a corresponding intrinsic frequency. The spin orbit torque-based spin torque oscillator circuits are configured to generate m output signals at the m second conductive lines upon application of n input signals to corresponding n first conductive lines. The n input signals correspond to an n-element input vector, and each input signal includes a corresponding input signal frequency. Each of the m output signals include frequency domain components at the input signal frequencies.
    Type: Application
    Filed: February 10, 2021
    Publication date: April 21, 2022
    Applicant: Western Digital Technologies, Inc.
    Inventors: Thao A. Nguyen, Michael Ho, Xiaoyong Liu, Zhigang Bai, Zhanjie Li, Quang Le, Yongchul Ahn, Hongquan Jiang
  • Patent number: 11309487
    Abstract: A MRAM cell includes a magnetic tunnel junction containing a reference layer having a fixed magnetization direction, a free layer, and a nonmagnetic tunnel barrier layer located between the reference layer and the free layer, a spin torque oscillator stack, and a first nonmagnetic spacer layer located between the free layer and the spin torque oscillator stack.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: April 19, 2022
    Assignee: SANDISK TECHNOLOGIES LLC
    Inventors: Quang Le, Zhanjie Li, Zhigang Bai, Paul Vanderheijden, Michael Ho
  • Patent number: 11290255
    Abstract: An online identity can be verified based on data from multiple identity sources stored in a blockchain. For example, a request for a token is received from an entity for authenticating an online identity of the entity to an online service. The request can be stored in a blockchain that represents the online identity of the entity by adding a new block to the blockchain. The new block can include data indicating the request for the token. The token can be generated based on the one or more ordered blocks in the blockchain. The token can be transmitted to the entity. The token can be received from the online service. Confirmation of the online identity of the entity can be transmitted to the online service based on receiving the token from the online service.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: March 29, 2022
    Assignee: Equifax Inc.
    Inventors: Sri Krishnamacharya, Quang Le, Stan Tigrett, Russ Ayres
  • Patent number: 11283008
    Abstract: An apparatus is provided that includes a magnetic tunnel junction, a magnetic assist layer coupled to the magnetic tunnel junction, a non-magnetic layer disposed between the free layer and the magnetic assist layer, and a spin Hall effect layer coupled to the magnetic assist layer. The magnetic tunnel junction includes a free layer in a plane, the free layer including a switchable magnetization direction perpendicular to the plane. The magnetic assist layer includes a magnetization direction parallel to the plane and free to rotate about an axis perpendicular to the plane.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: March 22, 2022
    Assignee: Western Digital Technologies, Inc.
    Inventors: Thao A. Nguyen, Michael Ho, Zhigang Bai, Xiaoyong Liu, Zhanjie Li, Yongchul Ahn, Hongquan Jiang, Quang Le
  • Patent number: 11275130
    Abstract: The present disclosure generally relates to sensor device, such as a magnetic sensor bridge, that utilizes a dual free layer (DFL) structure. The device includes a plurality of resistors that each includes the same DFL structure. Adjacent the DFL structure is a magnetic structure that can include a permanent magnet, an antiferromagnetic (AFM) layer having a synthetic AFM (SAF) structure thereon, a permanent magnetic having a SAF structure thereon, or an AFM layer having a ferromagnetic layer thereon. The DFL structures are aligned with different layers of the magnetic structures to differentiate the resistors. The different alignment and/or different magnetic structures result in a decrease in production time due to reduced complexity and, thus, reduces costs.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: March 15, 2022
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Xiaoyong Liu, Quang Le, Zhigang Bai, Daniele Mauri, Zhanjie Li, Kuok San Ho, Thao A. Nguyen, Rajeev Nagabhirava