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).

  • VERIFYING AN IDENTITY BASED ON MULTIPLE DISTRIBUTED DATA SOURCES USING A BLOCKCHAIN TO SAFEGUARD THE IDENTITY
    Publication number: 20200228321
    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: March 27, 2020
    Publication date: July 16, 2020
    Inventors: Sri KRISHNAMACHARYA, Quang LE, Stan TIGRETT, Russ AYRES
  • SPIN TRANSFER TORQUE MRAM WITH A SPIN TORQUE OSCILLATOR STACK AND METHODS OF MAKING THE SAME
    Publication number: 20200185596
    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 a spin torque oscillator stack.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 11, 2020
    Inventors: Quang Le, Zhanjie Li, Zhigang Bai, Paul Vanderheijden, Michael Ho
  • METALLIC MAGNETIC MEMORY DEVICES FOR CRYOGENIC OPERATION AND METHODS OF OPERATING THE SAME
    Publication number: 20200185015
    Abstract: A MRAM device includes a spin valve containing a reference layer having a fixed magnetization direction, a free layer, and a nonmagnetic metallic barrier layer located between the reference layer and the free layer, a metallic assist structure configured to provide rotating spin transfer torque to the free layer to assist the free layer switching during programming, and a first nonmagnetic metallic spacer layer located between the free layer and the metallic assist structure.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 11, 2020
    Inventors: Quang Le, Zhanjie Li, Zhigang Bai, Paul Vanderheijden, Michael Ho
  • SPIN-TRANSFER TORQUE MRAM WITH MAGNETICALLY COUPLED ASSIST LAYERS AND METHODS OF OPERATING THE SAME
    Publication number: 20200185595
    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 first magnetic assist layer, a second magnetic assist layer, an antiferromagnetic coupling spacer layer located between the first and second magnetic assist layers, and a first nonmagnetic spacer layer located between the free layer and the first magnetic assist layer. The antiferromagnetic coupling spacer layer is configured to provide antiferromagnetic coupling between a first magnetization direction of the first magnetic assist layer and a second magnetization direction of the second magnetic assist layer.
    Type: Application
    Filed: December 6, 2018
    Publication date: June 11, 2020
    Inventors: Quang Le, Zhanjie Li, Zhigang Bai, Paul Vanderheijden, Michael Ho
  • SPIN-TRANSFER TORQUE MRAM WITH A NEGATIVE MAGNETIC ANISOTROPY ASSIST LAYER AND METHODS OF OPERATING THE SAME
    Publication number: 20200185594
    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: Application
    Filed: December 6, 2018
    Publication date: June 11, 2020
    Inventors: Quang Le, Zhanjie Li, Zhigang Bai, Paul Vanderheijden, Michael Ho
  • Amorphous metal oxide films
    Patent number: 10668500
    Abstract: A method for preparing an amorphous metal oxide film is provided. The method comprises providing an aqueous composition comprising a metal fluorine compound; and contacting a substrate with the aqueous composition at a temperature of less than about 100° C. to obtain said amorphous metal oxide film on the substrate. An amorphous metal oxide film, and use of the amorphous metal oxide film in various applications are also provided.
    Type: Grant
    Filed: September 10, 2015
    Date of Patent: June 2, 2020
    Assignee: Agency for Science, Technology and Research
    Inventors: Kia Liang Gregory Goh, Hong Quang Le, Ajay Kumar Kushwaha
  • Oral photography system
    Patent number: 10667696
    Abstract: An oral photography system and method can include: a chassis, the chassis including a chassis base and a vertical chassis extension, the vertical chassis extension extending upward from the chassis base, the vertical chassis extension including a device clamp having a tightening extension coupled to a top clasp and a bottom clasp, the top clasp and the bottom clasp configured to hold an imaging device perpendicular to the vertical chassis extension, a diffusion panel attachment coupled to the vertical chassis extension, and a light panel attachment coupled to the vertical chassis extension; a diffusion panel releasably affixed to the diffusion panel attachment; and a light panel releasably affixed to the light panel attachment.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: June 2, 2020
    Inventor: Vu Quang Le
  • MAMR write head with thermal dissipation conductive guide
    Patent number: 10636439
    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, a MAMR stack disposed between the trailing shield and the main pole, side shields surrounding at least a portion of the main pole, and a structure disposed between the side shields and the main pole at a media facing surface (WS). The structure is fabricated from a material that is thermally conductive and electrically insulating/dissipative. The material has a thermal conductivity of at least 50 W/(m*K) and an electrical resistivity of at least 105 ?*m. The structure helps dissipate joule heating generated from either the main pole or the MAMR stack into surrounding area without electrical shunting, leading to reduced heating or break-down induced failures.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: April 28, 2020
    Assignee: Western Digital Technologies, Inc.
    Inventors: Quang Le, Hongquan Jiang, Ning Shi, Alexander M. Zeltser
  • Verifying an identity based on multiple distributed data sources using a blockchain to safeguard the identity
    Patent number: 10637646
    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: February 1, 2017
    Date of Patent: April 28, 2020
    Assignee: Equifax Inc.
    Inventors: Sri Krishnamacharya, Quang Le, Stan Tigrett, Russ Ayres
  • VERIFYING AN IDENTITY BASED ON MULTIPLE DISTRIBUTED DATA SOURCES USING A BLOCKCHAIN TO SAFEGUARD THE IDENTITY
    Publication number: 20200007316
    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 1, 2017
    Publication date: January 2, 2020
    Inventors: Sri KRISHNAMACHARYA, Quang LE, Stan TIGRETT, Russ AYRES
  • MAGNETIC SENSORS WITH EFFECTIVELY SHAPED SIDE SHIELDS
    Publication number: 20190333534
    Abstract: Magnetic sensors with effectively shaped side shields and their fabrication processes are provided. One such process includes depositing sensor materials on a substrate, shaping the sensor materials to form a stripe height of the magnetic sensor, shaping the sensor materials to form a track width of the magnetic sensor, depositing side shield materials on the shaped sensor materials, shaping the side shield materials such that a resulting side shield extends further than the stripe height, depositing an insulator layer on the shaped side shield materials, and shaping the insulator layer.
    Type: Application
    Filed: July 9, 2019
    Publication date: October 31, 2019
    Inventors: Quang Le, Yongchul Ahn, Xiaoyong Liu, Jui-Lung Li, Hongquan Jiang
  • Method for preparing an oxide film on a polymeric substrate
    Patent number: 10442906
    Abstract: Various embodiments refer to a method for preparing an oxide film on a polymeric substrate, wherein the oxide film is a titanium oxide film (which is optionally niobium- or silicon-doped) or silicon oxide film. The method comprises contacting a polymeric substrate with a liquid reagent comprising a polyalkoxysilane such as 3-aminopropyltriethoxysilane to form a layer of the polyalkoxysilane on the polymeric substrate by self-assembly, and contacting said layer with an aqueous mixture comprising (i) titanium tetrafluoride and/or a fluorine-containing titanium complex such as ammonium hexafluorotitanate and/or a fluorine-containing silicon complex such as ammonium hexafluorosilicate, and (ii) a fluorine scavenger such as boric acid, at a temperature of less than about 100° C. to obtained the oxide film on the polymeric substrate. An oxide film prepared by said method is also provided.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 15, 2019
    Assignee: Agency for Science, Technology and Research
    Inventors: Kia Liang Gregory Goh, Jing Li, Hong Quang Le
  • MAGNETIC RECORDING WRITE HEAD WITH SPIN-TORQUE OSCILLATOR (STO) AND EXTENDED SEED LAYER
    Publication number: 20190279662
    Abstract: A magnetic recording write head includes a spin torque oscillator (STO) between the write pole and trailing shield and an extended seed layer on the write pole beneath the STO. The seed layer has a cross-track width greater than the width of the STO and a depth in a direction orthogonal to the disk-facing surface of the write pole greater than the depth of the STO. A first insulating refill layer is formed on the sides of the extended seed layer and STO and a second insulating refill layer in contact with the first refill layer has a thermal conductivity greater than that of the first refill layer. When current is passing through the STO the extended seed layer spreads the current to reduce heating of the write pole and STO and the bilayer refill material facilitates the transfer of heat away from the write pole and STO.
    Type: Application
    Filed: May 29, 2017
    Publication date: September 12, 2019
    Inventors: Xiaoyong Liu, Quang Le, Hongquan Jiang, Guangli Liu, Jui-Lung Li
  • AREAL DENSITY CAPABILITY IMPROVEMENT WITH A MAIN POLE SKIN
    Publication number: 20190279663
    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: June 14, 2018
    Publication date: September 12, 2019
    Inventors: Suping SONG, Zhanjie LI, Michael Kuok San HO, Quang LE, Alexander M. ZELTSER
  • Magnetic recording write head with spin-torque oscillator (STO) and extended seed layer
    Patent number: 10410658
    Abstract: A magnetic recording write head includes a spin torque oscillator (STO) between the write pole and trailing shield and an extended seed layer on the write pole beneath the STO. The seed layer has a cross-track width greater than the width of the STO and a depth in a direction orthogonal to the disk-facing surface of the write pole greater than the depth of the STO. A first insulating refill layer is formed on the sides of the extended seed layer and STO and a second insulating refill layer in contact with the first refill layer has a thermal conductivity greater than that of the first refill layer. When current is passing through the STO the extended seed layer spreads the current to reduce heating of the write pole and STO and the bilayer refill material facilitates the transfer of heat away from the write pole and STO.
    Type: Grant
    Filed: May 29, 2017
    Date of Patent: September 10, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Xiaoyong Liu, Quang Le, Hongquan Jiang, Guangli Liu, Jui-Lung Li
  • MAMR WRITE HEAD WITH THERMAL DISSIPATION CONDUCTIVE GUIDE
    Publication number: 20190259413
    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, a MAMR stack disposed between the trailing shield and the main pole, side shields surrounding at least a portion of the main pole, and a structure disposed between the side shields and the main pole at a media facing surface (WS). The structure is fabricated from a material that is thermally conductive and electrically insulating/dissipative. The material has a thermal conductivity of at least 50 W/(m*K) and an electrical resistivity of at least 105 ?*m. The structure helps dissipate joule heating generated from either the main pole or the MAMR stack into surrounding area without electrical shunting, leading to reduced heating or break-down induced failures.
    Type: Application
    Filed: February 14, 2019
    Publication date: August 22, 2019
    Applicant: Western Digital Technologies, Inc.
    Inventors: Quang LE, Hongquan JIANG, Ning SHI, Alexander M. ZELTSER
  • MAGNETIC WRITE HEAD WITH CURRENT GUIDING LAYER
    Publication number: 20190251991
    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, side shields surrounding at least a portion of the main pole, and a structure disposed between the trailing shield and the main pole. The structure includes one or more layers and a seed layer. The seed layer is connected to one or more electrical leads to provide an electrical path from the leads to the one or more layers during operation. The seed layer guides the electrical current to the one or more layers and improves heat dissipation of the one or more layers, leading to a reduction in hot spots formed in the one or more layers.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 15, 2019
    Inventors: Quang LE, Hongquan JIANG, Michael Kuok San HO
  • Magnetic sensors with effectively shaped side shields
    Patent number: 10381032
    Abstract: Magnetic sensors with effectively shaped side shields and their fabrication processes are provided. One such sensor includes a substrate, a sensor stack disposed on the substrate and having a stripe height, where the sensor stack further includes a front edge disposed at an air bearing surface (ABS) of the magnetic sensor, a back edge opposite of the front edge, and two side edges, and a side shield adjacent to each of the two side edges of the sensor stack, each side shield having a side shield height defined as a distance from the ABS to a back edge of the side shields, where the side shield height is greater than the stripe height, and where substantially no residue from materials used to form the side shield are disposed at the back edge of the sensor stack.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: August 13, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Quang Le, Yongchul Ahn, Xiaoyong Liu, Jui-Lung Li, Hongquan Jiang
  • MAGNETIC SENSORS WITH EFFECTIVELY SHAPED SIDE SHIELDS
    Publication number: 20190221232
    Abstract: Magnetic sensors with effectively shaped side shields and their fabrication processes are provided. One such sensor includes a substrate, a sensor stack disposed on the substrate and having a stripe height, where the sensor stack further includes a front edge disposed at an air bearing surface (ABS) of the magnetic sensor, a back edge opposite of the front edge, and two side edges, and a side shield adjacent to each of the two side edges of the sensor stack, each side shield having a side shield height defined as a distance from the ABS to a back edge of the side shields, where the side shield height is greater than the stripe height, and where substantially no residue from materials used to form the side shield are disposed at the back edge of the sensor stack.
    Type: Application
    Filed: January 12, 2018
    Publication date: July 18, 2019
    Inventors: Quang Le, Yongchul Ahn, Xiaoyong Liu, Jui-Lung Li, Hongquan Jiang
  • OPTIMIZING EMERGENCY DEPARTMENT RESOURCE MANAGEMENT
    Publication number: 20190180868
    Abstract: The disclosed embodiments disclose techniques for optimizing emergency department resource management. During operation, a system receives a set of parameters that is associated with a patient entering an emergency department. The system analyzes the set of parameters in a machine learning module to determine (1) a calculated acuity score that indicates an estimated severity of illness for the patient and (2) a set of workload predictions that predict a set of resources that will be needed to treat the patient in the emergency department. The system then uses the acuity score and the workload predictions to assign a set of predicted tasks that are associated with treating the patient into the work queues of the emergency department.
    Type: Application
    Filed: December 11, 2018
    Publication date: June 13, 2019
    Applicant: UBQ, Inc.
    Inventors: Maurice Nabil Makram, Jamil Hatim Bitar, Sarah Jean-Kitazono Heringer, Vinh Quang Le