Patents Examined by Elizabeth A. Bolden
  • UV blocking for improved transmission glasses
    Patent number: 11498865
    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: November 13, 2019
    Date of Patent: November 15, 2022
    Assignee: CORNING INCORPORATED
    Inventors: Dana Craig Bookbinder, Nicholas Francis Borrelli, Matthew John Dejneka, Timothy Michael Gross, Xiaoju Guo, Ronald Leroy Stewart
  • Ultraviolet-radiation absorbing glass product
    Patent number: 11498864
    Abstract: Provided is an ultraviolet-radiation absorbing glass product, characterized by: having a transmittance of ultraviolet radiation (TUV), as specified by ISO 9050: 2003, of 2% or less at a plate thickness of 3.5 mm, and transmittance of visible light (TVA) of 8 to 28% inclusive, based on the Standard Illuminant A at a plate thickness of 3.5 mm; and the color of the glass, as denoted by the chromaticity coordinates x, y in the XYZ color coordinate system based on a 2-degree visual field of the Standard Illuminant C as specified by JIS Z8701: 1999, satisfying the following expressions (1) and (2). (1) y??0.735×x+0.544 (2) y?1.389×x?0.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: November 15, 2022
    Assignee: AGC Inc.
    Inventors: Shuichi Akada, Soshi Watanabe
  • Phosphate glasses with high refractive index and low density
    Patent number: 11485676
    Abstract: Glass compositions include niobia (Nb2O5), phosphorus oxide (P2O5) and titania (TiO2) as essential components and may optionally include calcium oxide (CaO), potassium oxide (K2O), barium oxide (BaO), sodium oxide (Na2O), lithium oxide (Li2O), magnesia (MgO), zinc oxide (ZnO) and other components. The glasses may be characterized by high refractive index at 587.56 nm at comparably low density at room temperature.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: November 1, 2022
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Jian Luo, Lina Ma, Alexander I Priven
  • Glasses having high fracture toughness
    Patent number: 11485674
    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: Grant
    Filed: March 29, 2019
    Date of Patent: November 1, 2022
    Assignee: CORNING INCORPORATED
    Inventors: Xiaoju Guo, Peter Joseph Lezzi, Jian Luo
  • Contrast enhancing glass for sunglass lenses
    Patent number: 11485675
    Abstract: A glass composition, including contrast enhancing glass and contrast enhancing sunglass, having approximately 45-65 wt.-%, SiO2, 0-12 wt.-% B2O3, 0-15 wt.-%, Na2O, 0-10 wt.-% K2O, and 10 0-7 wt.-% ZnO, 1-12 wt.-% Nd2O3, 1-10 wt.-% Er2O3, 0.5-8 wt.-% Ho2O3, and 0.00-0.05 wt.-% NiO, and methods of making the same.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: November 1, 2022
    Assignee: Barberini GmbH
    Inventors: Antje Gawronski, Simon Striepe, Ottmar Bartels
  • Calcium-containing high-index phosphate glasses
    Patent number: 11479499
    Abstract: Glass compositions include phosphorus oxide (P2O5), niobia (Nb2O5), titania (TiO2), potassium oxide (K2O) and calcium oxide (CaO) as essential components and may optionally include barium oxide (BaO), sodium oxide (Na2O), lithium oxide (Li2O), tungsten oxide (WO3), bismuth oxide (Bi2O3), tantalum oxide (Ta2O5), silica (SiO2) and other components. The glasses may be characterized by high refractive index at 587.56 nm at comparably low density at room temperature.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: October 25, 2022
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Jian Luo, Lina Ma, Alexander I Priven
  • Phosphate glasses with high refractive index and reduced dispersion
    Patent number: 11472731
    Abstract: Glass compositions include phosphorus oxide (P2O5), niobia (Nb2O5), barium oxide (BaO) and potassium oxide (K2O) as essential components and may optionally include titania (TiO2), calcium oxide (CaO), sodium oxide (Na2O), lithium oxide (Li2O), bismuth oxide (Bi2O3), strontium oxide (SrO), tungsten oxide (WO3) and other components. The glasses may be characterized by high refractive index at 587.56 nm at comparably low density at room temperature.
    Type: Grant
    Filed: January 14, 2022
    Date of Patent: October 18, 2022
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Jian Luo, Lina Ma, Alexander I. Priven
  • Ultraviolet light absorbing glass
    Patent number: 11465931
    Abstract: An ultraviolet light absorbing glass according to the present invention includes 1.6% or more of t-Fe2O3, more than 1.0% of TiO2, and 0.016% or more of CoO. The ultraviolet light absorbing glass has t-Fe2O3/TiO2 of 1.2 or more, and an ultraviolet light transmittance (TUV400) at a sheet thickness of 3.1 mm of 2.0% or less, a ratio of visible light transmittance (TVA)/TUV400 of 10 or more, and a dominant wavelength (?D) of 555 nm or less.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: October 11, 2022
    Assignee: AGC Inc.
    Inventor: Shuichi Akada
  • Zircon compatible, ion exchangeable glass with high damage resistance
    Patent number: 11447415
    Abstract: Glasses having a high degree of resistance to damage cause by abrasion, scratching, indentation, and the like are disclosed. In embodiments, the glasses may include at least 50 mol % SiO2; 9 mol % to 22 mol % Al2O3; Na2O; Li2O; at least 10 mol % R2O, wherein R2O is the sum of alkali metal oxides in the glass; 2.7 mol % to 4.5 mol % B2O3; and greater than 0.1 mol % of MgO+ZnO, wherein (B2O3—(R2O—Al2O3)) is greater than or equal to 3.
    Type: Grant
    Filed: September 23, 2021
    Date of Patent: September 20, 2022
    Assignee: CORNING INCORPORATED
    Inventors: Matthew John Dejneka, Adam James Ellison, John Christopher Mauro
  • Composition for glass, alkaline-earth aluminosilicate glass, and preparation method and application thereof
    Patent number: 11407674
    Abstract: A composition for glass, alkaline earth aluminosilicate glass, and a preparation method therefor and applications thereof. Based on the total number of moles of each component and the counting of oxides, the composition contains 68-73 mol % of SiO2, 11.5-15 mol % of Al2O3, 2-6 mol % of MgO, 2.5-7.5 mol % of CaO, 0-3 mol % of SrO, 2-7 mol % of BaO, 0-4 mol % of ZnO and 0.05-1.5 mol % of TiO2. The glass has a high strain point, a high Young's modulus, a high specific modulus, a high Vickers hardness, high chemical stability, a high refractive index and high glass formation stability, and has a lower forming temperature, a lower melting temperature, a lower thermal expansion coefficient, a lower surface tension, a lower density, and low glass manufacturing difficulty.
    Type: Grant
    Filed: April 9, 2018
    Date of Patent: August 9, 2022
    Assignees: TUNGHSU TECHNOLOGY GROUP CO., LTD., TUNGHSU GROUP CO., LTD.
    Inventors: Guangtao Zhang, Junfeng Wang, Gang Li, Peng Tian, Dongcheng Yan, Lihong Wang, Quan Zheng
  • Glasses having resistance to photo-darkening
    Patent number: 11407675
    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: Grant
    Filed: July 21, 2017
    Date of Patent: August 9, 2022
    Assignee: Corning Incorporated
    Inventors: Timothy Michael Gross, Xiaoju Guo
  • Glass compositions, fiberizable glass compositions, and glass fibers made therefrom
    Patent number: 11401203
    Abstract: New glass compositions and applications thereof are disclosed. Embodiments of the present invention relate to glass compositions, to fiber glass strands, to chopped fiber glass strands, to nonwoven mats of glass fibers, and to other products and methods. A fiber glass strand comprises a plurality of glass fibers comprising the glass composition of the present invention.
    Type: Grant
    Filed: October 10, 2019
    Date of Patent: August 2, 2022
    Inventor: Hong Li
  • Silicate product and strengthening method thereof
    Patent number: 11401198
    Abstract: Provided is a silicate article comprising SiO2, Al2O3, Na2O, K2O, MgO and ZrO2, wherein the content of Al2O3 is 15-28 parts by weight, the content of Na2O is 13-25 parts by weight, the content of K2O is 6-15 parts by weight, the content of MgO is 7-16 parts by weight, and the content of ZrO2 is 0.1-5 parts by weight, relative to 100 parts by weight of SiO2; and M is 5-13, as calculated by the following formula: M=P1*wt (Na2O)+P2*wt (K2O)+P3*wt (MgO)+P4*wt (ZrO2)?P5*wt (Al2O3)*wt (Al2O3). In the formula, P1 has a value of 0.53, P2 has a value of 0.153, P3 has a value of 0.36, P4 has a value of 0.67, and P5 has a value of 0.018.
    Type: Grant
    Filed: August 10, 2017
    Date of Patent: August 2, 2022
    Assignee: TUNGHSU GROUP CO., LTD.
    Inventors: Debao Li, Qing Li, Zihan Shen, Feng Guo, Ruhua Gong, Zhonghua Wang, Jiajia Chen
  • Glass tube for metal sealing and glass for metal sealing
    Patent number: 11377385
    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: July 5, 2022
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Tatsuya Goto, Kakumi Shiraishi, Kiyoyuki Okunaga, Koichi Hashimoto
  • Glasses having improved toughness and scratch resistance
    Patent number: 11370695
    Abstract: A silicate glass that is tough and scratch resistant. The toughness is increased by minimizing the number of non-bridging oxygen atoms in the glass. In one embodiment, the silicate glass is an aluminoborosilicate glass in which ?15 mol %?(R2O+R?O—Al2O3—ZrO2)—B2O3?4 mol %, where R is one of Li, Na, K, Rb, and Cs, and R? is one of Mg, Ca, Sr, and Ba.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: June 28, 2022
    Assignee: CORNING INCORPORATED
    Inventors: Matthew John Dejneka, Adam James Ellison, Sinue Gomez, Robert Michael Morena
  • Low dielectric glass composition, fibers, and article
    Patent number: 11339083
    Abstract: Glass compositions and glass fibers having low dielectric constants and low dissipation factors that may be suitable for use in electronic applications and articles are disclosed. The glass fibers and compositions of the present invention may include between 48.0 to 57.0 weight percent SiO2; between 15.0 and 26.0 weight percent B2O3; between 12.0 and 18.0 weight percent Al2O3; between 3.0 and 8.0 weight percent P2O5; between 0.25 and 7.00 weight percent CaO; 5.0 or less weight percent MgO; and 6.0 or less weight percent TiO2. Further, the glass composition has a glass viscosity of 1000 poise at a temperature greater than 1350 degrees Celsius and a liquidus temperature greater than 1100 degrees Celsius.
    Type: Grant
    Filed: January 2, 2020
    Date of Patent: May 24, 2022
    Assignee: AGY HOLDING CORPORATION
    Inventors: Robert Lurie Hausrath, Anthony Vincent Longobardo
  • Glass compositions with improved chemical and mechanical durability
    Patent number: 11325855
    Abstract: The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. In an embodiment the glass composition may include from about 67 mol. % to about 80 mol. % SiO2; from about 3 mol. % to about 13 mol. % alkaline earth oxide; from about 2 mol. % to about 10 mol. % Al2O3; from about 2 mol. % to about 18 mol. % alkali oxide, wherein the alkali oxide comprises non-zero amounts of Na2O; from 0 mol. % to about 4 mol. % B2O3; and from about 0.01 mol. % to about 1 mol. % of a fining agent.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 10, 2022
    Assignee: CORNING INCORPORATED
    Inventors: Paul Stephen Danielson, Steven Edward DeMartino, Melinda Ann Drake, Robert Michael Morena, Santona Pal, Robert Anthony Schaut
  • Borosilicate glass with high chemical resistance and application thereof
    Patent number: 11319242
    Abstract: The invention discloses a borosilicate glass with high chemical resistance and an application thereof. The borosilicate glass contains 0.25-4.0 wt % of Y2O3 based on the oxide. The borosilicate glass has a high chemical stability, a suitable linear thermal expansion coefficient and is suitable for use in the field of pharmaceutical packaging materials.
    Type: Grant
    Filed: December 26, 2017
    Date of Patent: May 3, 2022
    Assignee: Sunshine Lake Pharma Co., Ltd.
    Inventors: Weiqiang Hong, Zhengshang Zhou, Yong Jiang, Lianying Zhu, Xinqian He, Hongxing Han
  • High refractive index optical borate glass
    Patent number: 11319243
    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: Grant
    Filed: January 14, 2019
    Date of Patent: May 3, 2022
    Assignee: Corning Incorporated
    Inventors: Xiaoju Guo, Lina Ma, Paulo Jorge Gaspar Marques, Zhongzhi Tang
  • Composition for glass fiber, glass fiber, glass-fiber-containing composite material containing glass fiber, and method for manufacturing glass fiber
    Patent number: 11312654
    Abstract: Provided is a composition for a glass fiber which has a high elastic modulus and satisfactory productivity, and can facilitate the production of a fine-count glass fiber. The composition for a glass fiber of the present invention includes, as a glass composition expressed as a mass percent in terms of oxide, 50% to 70% of SiO2, 15% to 25% of Al2O3, 3% to 13% of MgO, 3% to 15% of CaO, and 0.5% to 5% of B2O3.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: April 26, 2022
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Yuki Yokota, Toshikatsu Tanaka