Patents by Inventor Yunfeng Gu

Yunfeng Gu 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).

  • Publication number: 20190202747
    Abstract: A method of making a ceramic honeycomb article which includes: applying at least one green membrane coating layer on a green substrate, the green substrate comprising a plurality of cells comprised of a plurality of interior channels and a plurality of porous interior walls between the channels; drying the at least one green membrane coating layer on the green substrate to produce a green coated substrate; and firing the green coated substrate into a porous substrate, wherein applying the at least one green membrane coating layer and the drying the at least one green membrane coating layer are repeated from 2 to 10 times prior to firing to form multiple green membrane coating layers on the green substrate and wherein the firing the green coated substrate forms a ceramic honeycomb article comprised of the porous substrate and multiple fired coating layers on the porous substrate.
    Type: Application
    Filed: March 7, 2019
    Publication date: July 4, 2019
    Inventors: Kenneth Joseph Drury, Curtis Robert Fekety, Yunfeng Gu, Paul Oakleu Johnson, Yanxia Ann Lu, Zhen Song
  • Publication number: 20190161415
    Abstract: Described herein is a cordierite membrane coated on a monolith substrate formed from cordierite. The membrane coating is formed from cordierite particles which have been processed to have a median particle size diameter of between 1 and 3 microns with a narrow particle size distribution suitable for forming a cordierite membrane on a cordierite monolith substrate. After the cordierite membrane is formed on the cordierite monolith substrate, the cordierite membrane monolith has a pore size of less than 1 micron.
    Type: Application
    Filed: November 27, 2018
    Publication date: May 30, 2019
    Inventors: Joel Edward Clinton, Kenneth Joseph Drury, Yunfeng Gu, Michael Elwyn Saunders
  • Patent number: 10183242
    Abstract: A method for making a porous inorganic membrane comprises using a mixture of an inorganic material, organic polymer particles and a solvent to form a slurry. The particles are non-spherical. The method further comprises distributing the slurry onto a surface, drying the slurry to remove the solvent and firing the dried slurry to produce the porous inorganic membrane. Examples of organic polymer particles include particles of acrylic. A substrate comprises a support with a porous inorganic membrane disposed on the support. The inorganic membrane has an average thickness of from about 0.5 micron to about 30 microns, a porosity of from about 30% to about 65%, a median pore size (d50) of from about 0.01 micron to about 1 micron, and a value of (d90?d10)/d50 less than about 2, as measured by mercury porosimetry. An example of a support includes an inorganic porous support.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: January 22, 2019
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Gary Stephen Calabrese, Yunfeng Gu, Jianguo Wang
  • Publication number: 20180312444
    Abstract: An inorganic membrane filtration article and methods for making the same. The membrane filtration article includes a sintered flow-through ceramic honeycomb with a plurality of partition walls defining a plurality of open channels from an inlet end of the honeycomb to an outlet end of the honeycomb. The honeycomb is formed from a cordierite composition with low-sodium and/or low-potassium content for enhanced filtration performance.
    Type: Application
    Filed: October 27, 2016
    Publication date: November 1, 2018
    Applicant: Corning Incorporated
    Inventors: Curtis Robert Fekety, Yunfeng Gu, Yanxia Ann Lu, Zhen Song
  • Patent number: 9926225
    Abstract: Described herein are aqueous acidic glass etching solutions or media comprising HF and H2SO4, wherein HF is present in concentrations not exceeding about 1.3M. The etching solutions are used to treat glass articles such as thin glass sheets at above-ambient temperatures to etch slight thicknesses of surface glass therefrom, the etching solutions exhibiting improved stability against dissolved glass precipitation and rapid glass removal rates at slightly elevated temperatures.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: March 27, 2018
    Assignee: CORNING INCORPORATED
    Inventors: Yunfeng Gu, Jun Hou, Timothy James Orcutt, Daniel Arthur Sternquist, Jeffery Scott Stone
  • Patent number: 9893558
    Abstract: Disclosed are a wireless charging apparatus and method, wherein the device includes: a receiving coil, connected to a dynamic matching circuit, and the dynamic matching circuit includes a control circuit and at least one kind of matching circuit; the control circuit is connected to the at least one kind of matching circuit; the control circuit is configured to: transmit a control signal for controlling ON and OFF of the at least one kind of matching circuit. The apparatus and method solve the problem of using different wireless charging standards to perform wireless charging and realize a flexible wireless charging mechanism.
    Type: Grant
    Filed: September 12, 2013
    Date of Patent: February 13, 2018
    Assignee: ZTE Corporation
    Inventor: Yunfeng Gu
  • Patent number: 9878272
    Abstract: A method is provided for making a porous inorganic membrane by using a mixture of an inorganic material, organic polymer particles and a solvent to form a slurry, the particles being non-spherical, distributing the slurry onto a surface, drying the slurry to remove the solvent and firing the dried slurry to produce the porous inorganic membrane. Examples of organic polymer particles include particles of acrylic. A substrate with a porous inorganic membrane disposed on the substrate is also provided, the inorganic membrane having an average thickness of from about 0.5 micron to about 30 microns, a porosity of from about 30% to about 65%, a median pore size (d50) of from about 0.01 micron to about 1 micron, and a value of (d90?d10)/d50 less than about 2, as measured by mercury porosimetry. An example of a substrate includes an inorganic porous support.
    Type: Grant
    Filed: May 25, 2011
    Date of Patent: January 30, 2018
    Assignee: Corning Incorporated
    Inventors: Dana Craig Bookbinder, Gary S Calabrese, Yunfeng Gu, Jianguo Wang
  • Publication number: 20170267569
    Abstract: A method of producing bi-modal particles includes the steps of igniting a first precursor gas using a primary burner thereby producing a first plurality of particles of a first size, fluidly transporting the first plurality of particles down a particle tube, igniting a second precursor gas using a secondary burner thereby producing a second plurality of particles of a second size, flowing the second plurality of particles into the first plurality of particles, and capturing the first and second plurality of particles.
    Type: Application
    Filed: March 10, 2017
    Publication date: September 21, 2017
    Inventors: Laura Beth Cook, Curtis Robert Fekety, Yunfeng Gu, Dale Robert Powers, Christopher Scott Thomas, Srinivas Vemury, Fei Xia, Chunfeng Zhou
  • Patent number: 9722084
    Abstract: There is disclosed a method for chemically treating a display glass substrate by treating at least one surface of the glass substrate with a heated solution containing HCl to form a depletion layer at the surface and under the surface of the glass substrate. The disclosure also relates to display glass substrates containing the depletion layer made by the disclosed process. In addition, the disclosure relates to methods of making thin-film transistors (“TFTs”) on these display glass substrates by depositing a Si layer directly on the chemically treated surface of the glass substrate, and annealing the Si layer to form polycrystalline silicon.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: August 1, 2017
    Assignee: Corning Incorporated
    Inventors: Ta-Ko Chuang, Yunfeng Gu, Robert George Manley
  • Patent number: 9675919
    Abstract: A method of treating a particulate filter includes introducing a work fluid, such as water, into one or more channels of the filter and then removing the work fluid in a vaporized state. The channels contain an amount of ash and the density of the ash is greater subsequent to the removal of the work fluid than prior to the introduction of the work fluid.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: June 13, 2017
    Assignee: Corning Incorporated
    Inventors: Thorsten Rolf Boger, Yunfeng Gu, Suhao He
  • Patent number: 9505651
    Abstract: Described herein are various systems and methods for using acidic media to enhance the surface characteristics of glass articles while reducing the adverse effects of precipitate/sludge formation. The systems and methods generally implement a precipitation-capturing device that is configured to 1) permit formation of sludge thereon and 2) reduce formation of the sludge on other solid surfaces involved in the systems and methods.
    Type: Grant
    Filed: May 29, 2013
    Date of Patent: November 29, 2016
    Assignee: Corning Incorporated
    Inventors: Yunfeng Gu, Jun Hou, Aize Li
  • Publication number: 20160251252
    Abstract: A method of strengthening a silica soot compact is provided. The method includes forming a mixture of silica soot particles and nanoparticles, and forming a silica soot compact from the mixture.
    Type: Application
    Filed: February 24, 2016
    Publication date: September 1, 2016
    Inventors: Joel Edward Clinton, Yunfeng Gu, Ji Wang
  • Publication number: 20160164334
    Abstract: Disclosed are a wireless charging apparatus and method, wherein the device includes: a receiving coil, connected to a dynamic matching circuit, and the dynamic matching circuit includes a control circuit and at least one kind of matching circuit; the control circuit is connected to the at least one kind of matching circuit; the control circuit is configured to: transmit a control signal for controlling ON and OFF of the at least one kind of matching circuit. The apparatus and method solve the problem of using different wireless charging standards to perform wireless charging and realize a flexible wireless charging mechanism.
    Type: Application
    Filed: September 12, 2013
    Publication date: June 9, 2016
    Inventor: Yunfeng GU
  • Publication number: 20160121272
    Abstract: A membrane filter article including: a porous substrate, as defined herein; and a porous first layer, as defined herein, on the porous interior walls of the substrate, wherein the porous first layer has a pore size property as defined herein. Also disclosed is a method of making and using the membrane filter article.
    Type: Application
    Filed: October 9, 2015
    Publication date: May 5, 2016
    Inventors: Kenneth Joseph Drury, Curtis Robert Fekety, Yunfeng Gu, Paul Oakley Johnson, Yanxia Ann Lu, Zhen Song
  • Publication number: 20160071981
    Abstract: There is disclosed a method for chemically treating a display glass substrate by treating at least one surface of the glass substrate with a heated solution containing HCl to form a depletion layer at the surface and under the surface of the glass substrate. The disclosure also relates to display glass substrates containing the depletion layer made by the disclosed process. In addition, the disclosure relates to methods of making thin-film transistors (“TFTs”) on these display glass substrates by depositing a Si layer directly on the chemically treated surface of the glass substrate, and annealing the Si layer to form polycrystalline silicon.
    Type: Application
    Filed: April 25, 2014
    Publication date: March 10, 2016
    Applicant: Corning Incorporated
    Inventors: Ta-Ko Chuang, Yunfeng Gu, Robert George Manley
  • Patent number: 9096923
    Abstract: A coating apparatus includes modular interfaces and substrate receptors for accommodating various shapes and sizes of monolith substrates when coating layers are applied onto the monolith substrates. The monolith substrates are laterally surrounded by an elastically deformable sleeve that prevents lateral leakage of a vacuum out of the monolith substrate when a vacuum is applied to opposing ends of the monolith substrate, thereby eliminating needs for bulky vacuum chambers. The coating apparatus also includes valves and control apparatus that enable excess precursor liquid to be drained from monolith channels in-situ, without the use of additional spin-drying steps. Coating methods for using the coating apparatus are provided.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: August 4, 2015
    Assignee: Corning Incorporated
    Inventors: Joel Edward Clinton, Curtis Robert Fekety, Yunfeng Gu
  • Publication number: 20150157962
    Abstract: A method is provided for making a porous inorganic membrane by using a mixture of an inorganic material, organic polymer particles and a solvent to form a slurry, the particles being non-spherical, distributing the slurry onto a surface, drying the slurry to remove the solvent and firing the dried slurry to produce the porous inorganic membrane. Examples of organic polymer particles include particles of acrylic. A substrate with a porous inorganic membrane disposed on the substrate is also provided, the inorganic membrane having an average thickness of from about 0.5 micron to about 30 microns, a porosity of from about 30% to about 65%, a median pore size (d50) of from about 0.01 micron to about 1 micron, and a value of (d90?d10)/d50 less than about 2, as measured by mercury porosimetry. An example of a substrate includes an inorganic porous support.
    Type: Application
    Filed: February 16, 2015
    Publication date: June 11, 2015
    Inventors: Dana Craig Bookbinder, Gary Stephen Calabrese, Yunfeng Gu, Jianguo Wang
  • Publication number: 20150122779
    Abstract: Described herein are various systems and methods for using acidic media to enhance the surface characteristics of glass articles while reducing the adverse effects of precipitate/sludge formation. The systems and methods generally implement a precipitation-capturing device that is configured to 1) permit formation of sludge thereon and 2) reduce formation of the sludge on other solid surfaces involved in the systems and methods.
    Type: Application
    Filed: May 31, 2012
    Publication date: May 7, 2015
    Inventors: Yunfeng Gu, Jun Hou, Aize Li
  • Patent number: 8959773
    Abstract: Wall flow membrane filters, fabricated by masking a first subset of the channels at one or both ends of a honeycomb body comprising an array of open-ended through-channels separated by porous channel walls, applying a membrane-forming composition to the porous channel walls of a second subset of the channels, curing the membrane-forming composition to provide a wall-adhering fluid-permeable membrane; and then plugging the first subset of channels at a first end of the body and the second subset of channels at a second end of the body, are useful in exhaust systems of improved particulate filtration efficiency for gasoline direct injection or diesel engines.
    Type: Grant
    Filed: September 23, 2010
    Date of Patent: February 24, 2015
    Assignee: Corning Incorporated
    Inventors: Curtis Robert Fekety, Yunfeng Gu, Irene Mona Peterson
  • Patent number: 8957632
    Abstract: A system and method for enabling compatibility of wired charging with wireless charging are disclosed. The system includes an interface circuit, a wired charging unit and a wireless charging unit. The interface circuit is configured to connect the wired charging unit and the wireless charging unit to a power management unit; the wired charging unit is connected to the power management unit via an interface circuit and is configured to charge the power management unit by using a charging circuit in the power management unit; and the wireless charging unit is connected to the power management unit via the interface circuit and is configured to charge the power management unit by using the same charging circuit as that used by the wired charging unit.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: February 17, 2015
    Assignee: ZTE Corporation
    Inventor: Yunfeng Gu