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: 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
  • Publication number: 20190279223
    Abstract: An information supporting method for business agent among a dynamic browser, a customer and the business agent, includes the steps of dynamically acquiring customer information data and customer question data, identifying keywords, executing search engine according to the keywords, executing database matching, and dynamically generating search results page to the customer.
    Type: Application
    Filed: March 8, 2018
    Publication date: September 12, 2019
    Inventors: Tu Song-Anh Nguyen, John Le, Quang-Tuan Song Nguyen, Quang-Thang Song Nguyen, Quan Nguyen Phung, Ly Nguyen Phung
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Patent number: 10311901
    Abstract: The present disclosure generally relates to data storage devices, and more specifically, to a magnetic media drive employing a magnetic read head. The magnetic read head includes an antiferromagnetic layer recessed from the MFS, a reference layer disposed over the antiferromagnetic layer, a free layer disposed over the reference layer, and a thermally conductive structure disposed over the reference layer. The thermally conductive structure is recessed from the MFS. The thermally conductive structure includes a first portion and a second portion. The first portion of the thermally conductive structure extends from the second portion of the thermally conductive structure towards the MFS. The first portion of the thermally conductive structure is aligned with the free layer in a stripe height direction. With the thermally conductive structure, thermal stabilization of the read head is achieved.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: June 4, 2019
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Quang Le, Hongquan Jiang, Yongchul Ahn, Alexander M. Zeltser
  • Patent number: 10157632
    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, a heavy metal structure surrounding at least a portion of the main pole at a media facing surface (MFS), and two magnetic structures sandwiching the heavy metal structure. Spin-orbit torque (SOT) is generated from the heavy metal structure, inducing magnetization switching (or precession) in the magnetic structures. The SOT reduces the magnetic flux shunting from the main pole to the trailing shield, and the magnetization switching sharpens the write field profile in the cross-track direction. The SOT based head with the magnetic structures sandwiching the heavy metal structure increases both track density (tracks per inch) and linear density (bit per inch), which in turn increases the areal density capability (ADC), which is the product of tracks per inch and bit per inch.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: December 18, 2018
    Assignee: WESTERN DIGITAL TECHNOLOGIES, INC.
    Inventors: Suping Song, Zhanjie Li, Michael Kuok San Ho, Quang Le, Alexander M. Zeltser
  • Publication number: 20180358543
    Abstract: Magnetic sensors using spin Hall effect and methods for fabricating same are provided. One such magnetic sensor includes a spin Hall layer including an electrically conductive, non-magnetic material, a magnetic free layer adjacent to the spin Hall layer, a pair of push terminals configured to enable an electrical current to pass through the magnetic free layer and the spin Hall layer in a direction that is perpendicular to a plane of the free and spin Hall layers, and a pair of sensing terminals configured to sense a voltage when the electrical current passes through the magnetic free layer and the spin Hall layer, where each of the push and sensing terminals is electrically isolated from the other terminals.
    Type: Application
    Filed: November 29, 2017
    Publication date: December 13, 2018
    Inventors: Quang Le, David John Seagle, Xiaoyong Liu, Daniele Mauri, Yongchul Ahn, Hongquan Jiang, Guangli Liu, David Patrick Druist, Jui-Lung Li
  • Publication number: 20180346673
    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: Application
    Filed: November 20, 2015
    Publication date: December 6, 2018
    Inventors: Kia Liang Gregory Goh, Jing Li, Hong Quang Le
  • Patent number: 10072408
    Abstract: A water saving toilet system having a toilet including a toilet bowl having an upper portion and a lower portion, at least one valve interposed between a first water source and a second water source and the toilet bowl for controlling at least one volume of water flowing from the first water source and/or the second water source to the toilet bowl and a timing mechanism connected to the at least one valve for controlling an amount of time that the valve allows water to flow from the first water source and/or the second water source to the toilet bowl, wherein the at least one valve and the timing mechanism cooperate to adjust the flush volume.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: September 11, 2018
    Inventor: Quang Le Huynh
  • Patent number: 9947347
    Abstract: A magnetic sensor that generates a signal based on inverse spin Hall effect. The sensor includes a magnetic free layer and a non-magnetic, electrically conductive spin Hall layer located adjacent to the magnetic free layer. Circuitry is configured to supply an electrical current that travels through the magnetic free layer and the spin Hall layer in a direction that is generally perpendicular to the plane of the layers or perpendicular to a plane defined by an interface between the magnetic free layer and the spin Hall layer. The inverse spin Hall effect causes an electrical voltage in the spin Hall layer as a result of the current, and the voltage changes relative to the orientation of magnetization of the magnetic free layer. Circuitry is provided for measuring the voltage in the spin Hall layer in a direction that is generally perpendicular to the direction of the electrical current.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: April 17, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Petrus Antonius Van Der Heijden, Quang Le, Kuok San Ho, Xiaoyong Liu, Gonçalo Marcos Baião De Albuquerque
  • Patent number: 9940955
    Abstract: A read head is provided with a scissors sensor. The read head may include a bottom magnetic shield, and a first non-magnetic seed layer, a magnetic seed layer, a second non-magnetic seed layer, an antiferromagnetic layer, a coupling layer, a first free magnetic layer, a spacer layer, and a second free magnetic layer positioned above the bottom magnetic shield, in this order. A pair of magnetic side shield layers may be positioned on respective sides of the second free magnetic layer.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: April 10, 2018
    Assignee: Western Digital Technologies, Inc.
    Inventors: Kouichi Nishioka, Zheng Gao, Ching Tsang, Quang Le, Sangmun Oh
  • Patent number: 9848319
    Abstract: Methods, systems, and computer readable media can be operable to facilitate the configuration of a device with service set information based upon an identification of a device-type associated with the device. A device-type identifier may be retrieved from a communication that is received from a device requesting a service from an access point. The device-type identifier may be compared to one or more correlations between device-types and service sets that are maintained within a database, and the device may be configured with information for a service set that is correlated with the retrieved device-type identifier, or the device may be configured with information for a default service set. Certain service sets offered by an access point may remain inactive when not in use, and if a device is configured with information for an inactive service set, the access point may automatically enable the service set.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: December 19, 2017
    Assignee: ARRIS Enterprises LLC
    Inventors: Kurt Alan Lumbatis, Loc Quang Le, Charles Hardt
  • Publication number: 20170259300
    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: Application
    Filed: September 10, 2015
    Publication date: September 14, 2017
    Inventors: Kia Liang Gregory Goh, Hong Quang Le, Ajay Kumar Kushwaha
  • Publication number: 20170221983
    Abstract: A method of fabricating an integrated circuit (IC) includes etching a trench in a semiconductor layer on a substrate having an aspect ratio (AR)?5 and a trench depth?10 ?m. A dielectric liner is formed along the walls of the trench. An in-situ doped polysilicon layer having a first thickness is deposited into the trench to form a dielectric lined partially filled trench. An un-doped polysilicon layer having a second thickness greater than the first thickness is deposited on the in-situ doped polysilicon layer to complete a filling of the trench to provide a polysilicon filled trench. The doped polysilicon filler after completion of fabricating the IC is essentially polysilicon void-free and has a 25° C. sheet resistance?60 ohms/sq. The method can include etching an opening at a bottom of the dielectric liner before depositing the polysilicon to provide ohmic contact to the semiconductor layer.
    Type: Application
    Filed: January 28, 2016
    Publication date: August 3, 2017
    Inventors: BHASKAR SRINIVASAN, BINGHUA HU, KHANH QUANG LE, SOPA CHEVACHAROENKUL