Patents Examined by Elizabeth A. Bolden
  • Patent number: 11028007
    Abstract: Embodiments of glass articles comprising an anneal point (° C.) and a softening point (° C.), and the relationship of (anneal point+softening point)/2 in a range from about 625° C. to about 725° C. are disclosed. In one or more embodiments, the glass articles include a glass composition including SiO2 in an amount in a range from about 63 mol % to about 75 mol %; Al2O3 in an amount in a range from about 7 mol % to about 13 mol %; R2O in an amount from about 13 mol % to about 24 mol %; P2O5 in an amount in a range from about 0 mol % to about 3 mol %, and one or both of MgO and ZnO. Laminates including such glass articles, and methods for making such laminates are also disclosed.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: June 8, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Timothy Michael Gross, Zhongzhi Tang, Lisa Anne Tietz Moore
  • Patent number: 10988402
    Abstract: The invention relates to a trim element for interior vehicle. According to the invention, the trim element is made of glass sheet.
    Type: Grant
    Filed: July 12, 2016
    Date of Patent: April 27, 2021
    Assignee: AGC GLASS EUROPE
    Inventors: Claire Mattelet, Pierre Humblet
  • Patent number: 10988407
    Abstract: The present invention provides for synthesizing high optical quality multicomponent chalcogenide glasses without refractive index perturbations due to striae, phase separation or crystal formation using a two-zone furnace and multiple fining steps. The top and bottom zones are initially heated to the same temperature, and then a temperature gradient is created between the top zone and the bottom zone. The fining and cooling phase is divided into multiple steps with multiple temperature holds.
    Type: Grant
    Filed: November 9, 2018
    Date of Patent: April 27, 2021
    Assignee: The Government of the United States of America, as represented by the Secretary of the Navy
    Inventors: Vinh Q. Nguyen, Mikhail Kotov, Daniel J. Gibson, Shyam S. Bayya, Jasbinder S. Sanghera, Gryphon A. Drake
  • Patent number: 10988405
    Abstract: Intermediate to high CTE glass compositions and laminates formed from the same are described. The glasses described herein have properties, such as liquidus viscosity or liquidus temperature, which make them particularly well suited for use in fusion forming processes, such as the fusion down draw process and/or the fusion lamination process. Further, the glass composition may be used in a laminated glass article, such as a laminated glass article formed by a fusion laminate process, to provide strengthened laminates via clad compression as a result of CTE mismatch between the core glass and clad glass.
    Type: Grant
    Filed: September 26, 2018
    Date of Patent: April 27, 2021
    Assignee: Corning Incorporated
    Inventors: Timothy James Kiczenski, John Christopher Mauro, Michelle Diane Pierson-Stull, Robert Anthony Schaut, Natesan Venkataraman
  • Patent number: 10981824
    Abstract: A highly temperature-resistant glass fiber and a preparation method therefor. The glass fiber comprises 62-66 wt % of SiO2, 14-19 wt % of Al2O3, 15-20 wt % of CaO, 0-2 wt % of MgO, 0-3 wt % of Fe2O3, and 0-1.2 wt % of TiO2, the total content of Na2O and K2O is 0.1-0.8 wt %. By precisely controlling the mixture of the components, the glass fiber has good resistance to high temperature and formability, and significantly increases the high-temperature softening point. The glass fiber has a forming temperature of not exceeding 1380° C., an upper limit temperature of devitrification of lower than 1280° C., and a high temperature softening temperature of 950° C. or above.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: April 20, 2021
    Assignee: CHONGQING POLYCOMP INTERNATIONAL CORPORATION
    Inventors: Cong Zhang, Hongbin Li, Bo Yu, Yuan Yao, Bin Zhou, Guoyun Yang, Baijiang Gong, Shaorong Ban, Lixiong Han
  • Patent number: 10974989
    Abstract: Disclosed herein are TiNb-phosphate glasses that present several advantages over traditional Ti-phosphate glass compositions. The glasses disclosed herein have a low devitrification tendency and can be processed by melt quenching and formed into macroscopic components. Despite the presence of niobium, the glasses have high stability indices and are chemically durable. The glasses disclosed herein are transparent and have high refractive indices, as well, making them suitable for optical applications.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: April 13, 2021
    Assignee: Corning Incorporated
    Inventor: Bruce Gardiner Aitken
  • Patent number: 10974987
    Abstract: The present invention relates to a glass substrate for a high-frequency device, which includes SiO2 as a main component, the glass substrate having a total content of alkali metal oxides in the range of 0.001-5% in terms of mole percent on the basis of oxides, the alkali metal oxides having a molar ratio represented by Na2O/(Na2O+K2O) in the range of 0.01-0.99, and the glass substrate having a total content of Al2O3 and B2O3 in the range of 1-40% in terms of mole percent on the basis of oxides and having a molar ratio represented by Al2O3/(Al2O3+B2O3) in the range of 0-0.45, in which at least one main surface of the glass substrate has a surface roughness of 1.5 nm or less in terms of arithmetic average roughness Ra, and the glass substrate has a dielectric dissipation factor at 35 GHz of 0.007 or less.
    Type: Grant
    Filed: March 12, 2019
    Date of Patent: April 13, 2021
    Assignee: AGC Inc.
    Inventors: Kazutaka Ono, Shuhei Nomura, Nobutaka Kidera, Nobuhiko Takeshita
  • Patent number: 10974988
    Abstract: A glass tube for sealing a metal includes a glass that contains, in terms of mass %, 50% or more of SiO2+B2O3, 0% to 10% of Al2O3, 3% to 20% of RO (R is an alkaline earth metal), and 11% to 22% of R?2O (R? is an alkali metal), and that has 10 ?l/g or less of an amount of CO2 emitted when heated from a room temperature to 1100° C.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: April 13, 2021
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Tatsuya Goto, Kakumi Shiraishi, Kiyoyuki Okunaga, Koichi Hashimoto
  • Patent number: 10974986
    Abstract: The present invention relates to an alkali-free glass substrate in which when the alkali-free glass substrate is melted, and while holding a temperature at 1400° C., reduced in pressure from an atmospheric pressure to 33.33 kPa at a constant pressure reduction rate for 20 minutes and held at 33.33 kPa for 5 minutes, a diameter of a grown bubble is at least 3 times a diameter of an initial bubble. A bubble having a diameter of 0.1 to 0.3 mm contained in a molten glass at 1400° C. before starting pressure reduction is defined as the initial bubble. A bubble after held at 33.33 kPa for 5 minutes corresponding to the initial bubble is defined as a grown bubble.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: April 13, 2021
    Assignee: AGC INC.
    Inventors: Motoyuki Hirose, Takashi Enomoto
  • Patent number: 10968134
    Abstract: A glass article including any one or several of SiO2, Al2O3, B2O3, Li2O, SnO2 and a fusion line. The glass article can also include a liquidus viscosity less than or equal to 100 kP. In some embodiments, the glass article includes, on an oxide basis, from 60 mol % to 74 mol % SiO2, from 7 mol % to 18 mol % Al2O3, from 3 mol % to 16 mol % B2O3, from 0 mol % to 6 mol % Na2O, from 0 mol % to 5 mol % P2O5, from 5 mol % to 11 mol % Li2O, less than or equal to 0.2 mol % SnO2.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: April 6, 2021
    Assignee: Corning Incorporated
    Inventors: Timothy Michael Gross, Xiaoju Guo, Shawn Rachelle Markham, Charlene Marie Smith, Jae Hyun Yu
  • Patent number: 10954156
    Abstract: Provided is an optical glass having a high refractive index and high light transmittance. The optical glass contains, in terms of mol % based on oxides, SiO2: 9.0% to 11.0%, B2O3: 22.0% to 24.0%, La2O3: 18.0% to 20.0%, and TiO2: 30.0% to 31.0%.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: March 23, 2021
    Assignee: AGC INC.
    Inventors: Akira Shibata, Shinichi Amma
  • Patent number: 10906835
    Abstract: The present invention relates generally to glass compositions incorporating rare earth oxides (RE2O3). In one embodiment, a glass composition suitable for fiber forming comprises 51-70 wt. % SiO2, 12.5-22 wt. % Al2O3, 0-20 wt. % CaO, 0-11 wt. % MgO, 0.2-1 wt. % Fe2O3, 0.05 or greater wt. % RE2O3, and greater than 1 wt. % MnOx. In another embodiment, a glass composition suitable for fiber forming comprises 51-70 wt. % SiO2, 12.5-22 wt. % Al2O3, 0-20 wt. % CaO, 0-11 wt. % MgO, 0.2-1 wt. % Fe2O3, 0.05 or greater wt. % RE2O3, 0-4 wt. % BaO, 0-4 wt. % SrO, and 0-5.5 wt. % ZnO, wherein the sum of BaO+SrO+ZnO is greater than about 2 wt. %. In another embodiment, a glass composition suitable for fiber forming comprises 51-70 wt. % SiO2, 12.5-22 wt. % Al2O3, 0-20 wt. % CaO, 0-11 wt. % MgO, 0.2-1 wt. % Fe2O3, 0.05 or greater wt. % RE2O3, and from greater than 0 to 2.5 wt. % Cu2O. In another embodiment, a glass composition suitable for fiber forming comprises 51-70 wt. % SiO2, 12.5-22 wt. % Al2O3, 0-20 wt. % CaO, 0-12.
    Type: Grant
    Filed: July 27, 2018
    Date of Patent: February 2, 2021
    Assignee: Electric Glass Fiber America, LLC
    Inventors: Hong Li, Paul A. Westbrook
  • Patent number: 10906834
    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: Grant
    Filed: November 28, 2018
    Date of Patent: February 2, 2021
    Assignee: CORNING INCORPORATED
    Inventors: Timothy Michael Gross, Xiaoju Guo, Peter Joseph Lezzi, Alexandra Lai Ching Kao Andrews Mitchell, Rostislav Vatchev Roussev
  • Patent number: 10899657
    Abstract: A method of making a ceramic glaze additive formulation having an antimicrobial property for use with a ceramic article is provided. The method comprises fritting an antimicrobial formulation in a flux frit, providing a silver carrier in a glass matrix, combining the flux frit and the silver carrier in the glass matrix to form the ceramic glaze additive formulation, wherein the silver carrier is combined at an addition rate of at least 2 weight %, based on a dry weight basis of the ceramic glaze formulation. The flux frit is present in the ceramic glaze additive formulation in a range of 94 weight % to 99.5 weight %, based on a dry weight basis of the ceramic glaze additive formulation. A ceramic glaze additive formulation and a ceramic glazed article comprising a ceramic glaze additive formulation are also provided.
    Type: Grant
    Filed: March 9, 2016
    Date of Patent: January 26, 2021
    Assignee: Microban Products Company
    Inventors: Alvin Lamar Campbell, Jr., Nathan L Fields
  • Patent number: 10899653
    Abstract: Provided herein is a glass composition comprising: about 72 mol % to about 77 mol % SiO2; about 8 mol % to about 12 mol % Al2O3; about 10 mol % to about 14 mol % of one or more alkali oxide R2O, wherein R2O is Li2O, Na2O, K2O, Rb2O, or Cs2O; one or more divalent oxide RO, wherein RO is MgO, CaO, SrO, BaO, or ZnO; and P2O5, wherein the ratio of mol % RO/(mol % R2O+mol % RO) is at least about 0.2. The glass composition has one or more of the following characteristics: (i) a low temperature (form 25° C. to 300° C.) coefficient thermal expansion (LTCTE) of less than 7.5 ppm/° C.; (ii) high temperature coefficient thermal expansion (HTCTE) of less than 18 ppm/° C.; (iii) liquidus viscosity of at least 200,000 poise; (iv) glass temperature of at least 1100° C. at 200,000 poise or at least 1200° C. at 35,000 poise; and (v) a fictive temperature Tf less than about 795° C.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: January 26, 2021
    Assignee: CORNING INCORPORATED
    Inventor: Timothy Michael Gross
  • Patent number: 10882779
    Abstract: An inorganic fiber containing a fiberization product of a compound comprising at least one alkaline earth silicate, at least one compound containing an element from group VII and/or IX of the periodic table, and optionally alumina and/or boria. The inclusion of a suitable amount of at least one compound containing an element from group VII and/or IX of the periodic table of elements to an alkaline-earth silicate inorganic fiber reduces fiber shrinkage, decreases biopersistence in physiological solutions, and enhances mechanical strength beyond that of alkaline earth silicate fibers without the presence of the at least one compound containing an element from group VII and/or IX. Also provided are methods of preparing the inorganic fiber and of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: January 5, 2021
    Assignee: UNIFRAX I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton
  • Patent number: 10882778
    Abstract: A glass substrate includes, as a glass matrix composition as represented by mole percentage based on oxides, SiO2: 55%-75%, Al2O3: 2%-15%, MgO: 0%-10%, CaO: 0%-10%, SrO: 0%-10%, BaO: 0%-15%, ZrO2: 0%-5%, Na2O: 0%-20%, K2O: 5%-30%, and Li2O: 0%-5.0%. The glass substrate has a total content of alkali metal oxides, as represented by mole percentage based on oxides, of 10%-30%, a value obtained by dividing the total content of alkali metal oxides by the content of SiO2 of 0.50 or smaller, a value obtained by dividing the content of Na2O by a value obtained by subtracting the content of Al2O3 from a total content of Na2O and K2O of 0.90 or smaller, and an average coefficient of thermal expansion ?1 at 50° C.-350° C. of 11 ppm/° C.-16 ppm/° C.
    Type: Grant
    Filed: June 26, 2018
    Date of Patent: January 5, 2021
    Assignee: AGC Inc.
    Inventors: Shigeki Sawamura, Kazutaka Ono, Yu Hanawa
  • Patent number: 10879510
    Abstract: Acid-resistant and biosoluble glass compositions and products made therefrom. The glass compositions exhibit acid resistance, durability in white water as may be used in a wet laid fabrication process, and good biosolubility. In another aspect, a glass fiber mat is made from such a glass composition, and may be used in the manufacture of lead-acid batteries, for example as a pasting material or battery separator.
    Type: Grant
    Filed: June 4, 2018
    Date of Patent: December 29, 2020
    Assignee: Johns Manville
    Inventors: Zhihua Guo, Elam Leed, Luke S Weith, Jawed Asrar, Dana G Miloaga
  • Patent number: 10870602
    Abstract: Embodiments of the present invention provide glass compositions, fiberizable glass compositions, and glass fibers formed from such compositions, as well as glass strands, yarns, fabrics, and composites comprising such glass fibers adapted for use in various applications. In some embodiments of the present invention, the glass compositions additionally include at least one rare earth oxide.
    Type: Grant
    Filed: March 20, 2018
    Date of Patent: December 22, 2020
    Assignee: Electric Glass Fiber America, LLC
    Inventors: Hong Li, Paul A. Westbrook
  • Patent number: 10865133
    Abstract: A dental glass includes: phosphorus; sodium and/or potassium; and calcium, wherein the dental glass contains, in terms of oxide, phosphorus (P2O5) by greater than or equal to 40% by mass and less than or equal to 70% by mass, sodium and/or potassium (Na2O, K2O) by greater than or equal to 20% by mass and less than or equal to 40% by mass, and calcium (CaO) by greater than or equal to 1% by mass and less than or equal to 20% by mass, and wherein the dental glass does not substantially contain silicon and aluminum.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: December 15, 2020
    Assignee: GC Corporation
    Inventors: Shigenori Akiyama, Ryosuke Yoshimitsu, Satomi Tateiwa, Katsushi Yamamoto, Syouichi Fukushima