Patents by Inventor Xiaoju Guo

Xiaoju Guo 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: 10556826
    Abstract: Methods for regenerating poisoned salt bath comprising providing a salt bath comprising at least one of KNO3 and NaNO3, providing an ion-exchangeable substrate comprising lithium cations, contacting at least a portion of the ion-exchangeable substrate with the salt bath, whereby lithium cations in the salt bath diffuse from the ion-exchangeable substrate and are dissolved in the salt bath, and selectively precipitating dissolved lithium cations from the salt bath using phosphate salt. The methods further include preventing or reducing the formation of surface defects in the ion-exchangeable substrate by preventing or reducing the formation of crystals on the surface of the ion-exchangeable substrate upon removal from the salt bath.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: February 11, 2020
    Assignee: Corning Incorporated
    Inventors: Jaymin Amin, Xiaoju Guo, Todd LeRoy Heck, Hongmei Hu, Yuhui Jin, Pascale Oram, Ljerka Ukrainczyk
  • Publication number: 20200039877
    Abstract: Disclosed devices include a liquid crystal layer and a cover glass comprising at least one major surface having a depleted or enriched surface layer. Methods for reducing mura in a touch-display device are also disclosed.
    Type: Application
    Filed: February 28, 2018
    Publication date: February 6, 2020
    Inventors: Xiaoju Guo, Yuhui Jin, Robert George Manley, Wanda Jaina Walczak
  • Patent number: 10550029
    Abstract: Glasses that undergo rapid ion exchange. The glasses comprise SiO2, Al2O3, P2O5, Na2O, K2O, and, in some embodiments, at least one of MgO and ZnO. The glass may, for example, be ion exchanged in a molten KNO3 salt bath in less than 1 hour at temperatures in a range from about 370° C. to about 390° C. to achieve a depth of surface compressive layer of greater than about 45 microns, or in a range from about 0.05t to about 0.22t, where t is the thickness of the glass. The glasses are fusion formable and, in some embodiments, compatible with zircon.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: February 4, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Timothy Michael Gross, Xiaoju Guo
  • Publication number: 20200031711
    Abstract: A method for generating various stress profiles for chemically strengthened glass. An alkali aluminosilicate glass is brought into contact with an ion exchange media such as, for example, a molten salt bath containing an alkali metal cation that is larger than an alkali metal cation in the glass. The ion exchange is carried out at temperatures greater than about 420° C. and at least about 30° C. below the anneal point of the glass.
    Type: Application
    Filed: September 27, 2019
    Publication date: January 30, 2020
    Inventors: Douglas Clippinger Allen, Xiaoju Guo, Guangli Hu, Gaozhu Peng
  • Patent number: 10544059
    Abstract: Glass-ceramics and precursor glasses that are crystallizable to glass-ceramics are disclosed. The glass-ceramics of one or more embodiments include rutile, anatase, armalcolite or a combination thereof as the predominant crystalline phase. Such glasses and glass-ceramics may include compositions of, in mole %: SiO2 in the range from about 45 to about 75; Al2O3 in the range from about 4 to about 25; P2O5 in the range from about 0 to about 10; MgO in the range from about 0 to about 8; R2O in the range from about 0 to about 33; ZnO in the range from about 0 to about 8; ZrO2 in the range from about 0 to about 4; B2O3 in the range from about 0 to about 12, and one or more nucleating agents in the range from about 0.5 to about 12. In some glass-ceramic articles, the total crystalline phase includes up to 20% by weight of the glass-ceramic article.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: January 28, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Matthew John Dejneka, Qiang Fu, Timothy Michael Gross, Xiaoju Guo, Sumalee Likitvanichkul, John Christopher Mauro
  • Publication number: 20190375679
    Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The glass-based articles herein provide high fracture resistance after multiple drops.
    Type: Application
    Filed: June 7, 2019
    Publication date: December 12, 2019
    Inventors: Timothy Michael Gross, Xiaoju Guo, Jason Thomas Harris, Peter Joseph Lezzi, Alexandra Lai Ching Kao Andr Mitchell, Pascale Oram, Kevin Barry Reiman, Rostislav Vatchev Roussev, Ljerka Ukrainczyk
  • Patent number: 10501365
    Abstract: Embodiments are directed to glass articles which are resistant to UV photodarkening, the glass articles having a thickness ?1.3 mm and comprise UV absorbers such as Ti, V, Mn, Fe, Cu, Ce, Ge, Mo, Cr, Co and Ni, and combinations thereof, or alternatively comprising ZnO or SnO2.
    Type: Grant
    Filed: September 25, 2015
    Date of Patent: December 10, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Dana Craig Bookbinder, Nicholas Francis Borrelli, Matthew John Dejneka, Timothy Michael Gross, Xiaoju Guo, Ronald Leroy Stewart
  • Publication number: 20190369672
    Abstract: Glass-based articles are provided that exhibit improved drop performance. The relationship between properties attributable to the glass composition and stress profile of the glass-based articles are provided that indicate improved drop performance.
    Type: Application
    Filed: May 29, 2019
    Publication date: December 5, 2019
    Inventors: Xiaoju Guo, Peter Joseph Lezzi, Jian Luo, Rostislav Vatchev Roussev
  • Patent number: 10494292
    Abstract: Silicate glasses that are fictivated and fast cooled and have high levels of intrinsic or “native” damage resistance. When ion exchanged, the silicate glasses described herein have a Vickers crack initiation threshold of at least 15 kgf and, in some embodiments, at least about 25 kgf.
    Type: Grant
    Filed: January 28, 2014
    Date of Patent: December 3, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Matthew John Dejneka, Xiaoju Guo, John Christopher Mauro
  • Patent number: 10442730
    Abstract: A method for generating various stress profiles for chemically strengthened glass. An alkali aluminosilicate glass is brought into contact with an ion exchange media such as, for example, a molten salt bath containing an alkali metal cation that is larger than an alkali metal cation in the glass. The ion exchange is carried out at temperatures greater than about 420° C. and at least about 30° C. below the anneal point of the glass.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: October 15, 2019
    Assignee: CORNING INCORPORATED
    Inventors: Douglas Clippinger Allan, Xiaoju Guo, Guangli Hu, Gaozhu Peng
  • Publication number: 20190300422
    Abstract: A glass composition includes: 50 mol % to 69 mol % SiO2; 12.5 mol % to 25 mol % Al2O3; 0 mol % to 8 mol % B2O3; greater than 0 mol % to 4 mol % CaO; greater than 0 mol % to 17.5 mol % MgO; 0.5 mol % to 8 mol % Na2O; 0 mol % to 2.5 mol % La2O3; and greater than 8 mol % to 18 mol % Li2O, wherein (Li2O+Na2O+MgO)/Al2O3 is from 0.9 to less than 1.3; and Al2O3+MgO+Li2O+ZrO2+La2O3+Y2O3 is from greater than 23 mol % to less than 50 mol %. The glass composition may be characterized by at least one of the following: a K1C value measured by a chevron short bar method of at least 0.75; and a K1C value measured by a double torsion method of at least 0.8. The glass composition is chemically strengthenable. The glass composition may be used in a glass article or a consumer electronic product.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Inventors: Xiaoju Guo, Peter Joseph Lezzi, Jian Luo
  • Publication number: 20190270666
    Abstract: Glass articles that are resistant to coloration when exposed to ultraviolet light or plasma cleaning processes. The glass articles comprise or consist of an alkali aluminosilicate glass containing from about 0.1 mol % to about 1 mol % of at least one of ZrO2, Sb2O3, and Nb2O5; and less than about 400 ppm each of oxides of titanium, iron, germanium, cerium, nickel, cobalt, and europium.
    Type: Application
    Filed: July 21, 2017
    Publication date: September 5, 2019
    Inventors: Timothy Michael Gross, Xiaoju Guo
  • Publication number: 20190251890
    Abstract: Disclosed herein are devices comprising a receive (RX) sensor layer, a transmit (TX) sensor layer, a cover glass, a polarizer, and at least one conductive element disposed on at least one surface of the cover glass, at least one surface of the polarizer, or both. Also disclosed herein are methods for reducing mura in a touch-display device.
    Type: Application
    Filed: October 31, 2017
    Publication date: August 15, 2019
    Inventors: Xiaoju Guo, Zhenhua Guo, Jr-Nan Hu, Vitor Marino Schneider, Elena Streltsova, Ljerka Ukraincyyk, Sujanto Widjaja
  • Publication number: 20190218137
    Abstract: A borate glass includes from 25.0 mol % to 70.0 mol % B2O3; from 0.0 mol % to 10.0 mol % SiO2; from 0.0 mol % to 15.0 mol % Al2O3; from 3.0 mol % to 15.0 mol % Nb2O5; from 0.0 mol % to 12.0 mol % alkali metal oxides; from 0.0 mol % to 5.0 mol % ZnO; from 0.0 mol % to 8.0 mol % ZrO2; from 0.0 mol % to 15.0 mol % TiO2; less than 0.5 mol % Bi2O3; and less than 0.5 mol % P2O5. The optical borate glass includes a sum of B2O3+Al2O3+SiO2 from 35.0 mol % to 76.0 mol %, a sum of CaO+MgO from 0.0 mol % to 35.5 mol %. The borate glass has a refractive index, measured at 587.6 nm, of greater than 1.70, a density of less than 4.50 g/cm3, and an Abbe number, VD, from 20.0 to 47.0.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Inventors: Xiaoju Guo, Lina Ma, Paulo Jorge Gaspar Marques, Zhongzhi Tang
  • Publication number: 20190208652
    Abstract: Glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t), and a stress profile are disclosed having a thickness (t) of about 3 millimeters or less, and wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than 0.7·t, comprise a tangent with a slope that is less than about ?0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers. Also disclosed are glass-based articles having a thickness (t) in a range of 0.1 mm and 2 mm; and wherein at least one point of the stress profile in a first thickness range from about 0·t up to 0.020·t and greater than 0.98·t comprises a tangent with a slope of from about ?200 MPa/micrometer to about ?25 MPa/micrometer or about 25 MPa/micrometer to about 200 MPa/micrometer, and wherein all points of the stress profile in a second thickness range from about 0.035·t and less than 0.
    Type: Application
    Filed: March 6, 2019
    Publication date: July 4, 2019
    Inventors: Timothy Michael Gross, Xiaoju Guo, Pascale Oram, Kevin Barry Reiman, Rostislav Vatchev Roussev, Vitor Marino Schneider, Trevor Edward Wilantewicz
  • Publication number: 20190161390
    Abstract: A glass composition includes: from 55.0 mol % to 70.0 mol % SiO2; from 12.0 mol % to 20.0 mol % Al2O3; from 5.0 mol % to 15.0 mol % Li2O; and from 4.0 mol % to 15.0 mol % Na2O. The glass composition has the following relationships ?8.00 mol %?R2O+RO?Al2O3?B2O3?P2O5??1.75 mol %, 9.00?(SiO2+Al2O3+Li2O)/Na2O, and (Li2O+Al2O3+P2O5)/(Na2O+B2O3)?3.50. The glass composition may be used in a glass article or a consumer electronic product.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 30, 2019
    Inventors: Timothy Michael Gross, Xiaoju Guo, Peter Joseph Lezzi, Alexandra Lai Ching Kao Andrews Mitchell, Rostislav Vatchev Roussev
  • Publication number: 20190161386
    Abstract: A glass composition includes from 55.0 mol % to 75.0 mol % SiO2; from 8.0 mol % to 20.0 mol % Al2O3; from 3.0 mol % to 15.0 mol % Li2O; from 5.0 mol % to 15.0 mol % Na2O; and less than or equal to 1.5 mol % K2O. The glass composition has the following relationships: Al2O3+Li2O is greater than 22.5 mol %, R2O+RO is greater than or equal to 18.0 mol %, R2O/Al2O3 is greater than or equal to 1.06, SiO2+Al2O3+B2O3+P2O5 is greater than or equal to 78.0 mol %, and (SiO2+Al2O3+B2O3+P2O5)/Li2O is greater than or equal to 8.0. The glass composition may be used in a glass article or a consumer electronic product.
    Type: Application
    Filed: November 28, 2018
    Publication date: May 30, 2019
    Inventors: Timothy Michael Gross, Xiaoju Guo, Peter Joseph Lezzi, Alexandra Lai Ching Kao Andrews Mitchell, Rostislav Vatchev Roussev
  • Publication number: 20190147126
    Abstract: Computer-implemented methods and apparatus are provided for predicting/estimating (i) a non-equilibrium viscosity for at least one given time point in a given temperature profile for a given glass composition, (ii) at least one temperature profile that will provide a given non-equilibrium viscosity for a given glass composition, or (iii) at least one glass composition that will provide a given non-equilibrium viscosity for a given time point in a given temperature profile. The methods and apparatus can be used to predict/estimate stress relaxation in a glass article during forming as well as compaction, stress relaxation, and/or thermal sag or thermal creep of a glass article when the article is subjected to one or more post-forming thermal treatments.
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Inventors: Douglas Clippinger Allan, Adam James Ellison, Xiaoju Guo, Timothy James Kiczenski, John Christopher Mauro, Marcel Potuzak
  • Publication number: 20190144325
    Abstract: A method for cutting, separating and removing interior contoured shapes in thin substrates, particularly glass substrates. The method involves the utilization of an ultra-short pulse laser to form defect lines in the substrate that may be followed by use of a second laser beam to promote isolation of the part defined by the interior contour.
    Type: Application
    Filed: May 4, 2017
    Publication date: May 16, 2019
    Inventors: Bradley Frederick Bowden, Xiaoju Guo, Thomas Hackert, Garrett Andrew Piech, Kristopher Allen Wieland
  • Patent number: 10271442
    Abstract: Glass-based article including a first surface and a second surface opposing the first surface defining a thickness (t), and a stress profile are disclosed having a thickness (t) of about 3 millimeters or less, and wherein all points of the stress profile between a thickness range from about 0·t up to 0.3·t and from greater than 0.7·t, comprise a tangent with a slope that is less than about ?0.1 MPa/micrometers or greater than about 0.1 MPa/micrometers. Also disclosed are glass-based articles having a thickness (t) in a range of 0.1 mm and 2 mm; and wherein at least one point of the stress profile in a first thickness range from about 0·t up to 0.020·t and greater than 0.98·t comprises a tangent with a slope of from about ?200 MPa/micrometer to about ?25 MPa/micrometer or about 25 MPa/micrometer to about 200 MPa/micrometer, and wherein all points of the stress profile in a second thickness range from about 0.035·t and less than 0.
    Type: Grant
    Filed: April 7, 2017
    Date of Patent: April 23, 2019
    Assignee: Corning Incorporated
    Inventors: Timothy Michael Gross, Xiaoju Guo, Pascale Oram, Kevin Barry Reiman, Rostislav Vatchev Roussev, Vitor Marino Schneider, Trevor Edward Wilantewicz