Patents Examined by Elizabeth A. Bolden
  • Alkali-free borosilicate glasses with low post-HF etch roughness
    Patent number: 11554984
    Abstract: An article comprises a glass substrate. The glass substrate has a first surface having a plurality of vias therein, and a second surface parallel to the first surface. At least one of the first surface and the second surface is an etched surface having a surface roughness (Ra) of 0.75 nm or less. The glass substrate comprises, in mol percent on an oxide basis: 65 mol %?SiO2?75 mol %; 7 mol %?Al2O3?15 mol %; 26.25 mol %?RO+Al2O3?B2O3; 0 mol %?R2O?2 mol %. RO=MgO+CaO+SrO+BaO+ZnO. R2O=Li2O+Na2O+K2O+Rb2O+Cs2O.
    Type: Grant
    Filed: February 11, 2019
    Date of Patent: January 17, 2023
    Assignee: Corning Incorporated
    Inventors: Timothy Michael Gross, Yuhui Jin, Ruchirej Yongsunthon, Liying Zhang
  • Glass substrate, semiconductor device, and display device
    Patent number: 11554983
    Abstract: A glass substrate has a compaction of 0.1 to 100 ppm. An absolute value |??50/100| of a difference between an average coefficient of thermal expansion ?50/100 of the glass substrate and an average coefficient of thermal expansion of single-crystal silicon at 50° C. to 100° C., an absolute value |??100/200| of a difference between an average coefficient of thermal expansion ?100/200 of the glass substrate and an average coefficient of thermal expansion of the single-crystal silicon at 100° C. to 200° C., and an absolute value |??200/300| of a difference between an average coefficient of thermal expansion ?200/300 of the glass substrate and an average coefficient of thermal expansion of the single-crystal silicon at 200° C. to 300° C. are 0.16 ppm/° C. or less.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: January 17, 2023
    Assignee: AGC INC.
    Inventors: Shuhei Nomura, Kazutaka Ono
  • Soda lime glass sheet
    Patent number: 11548807
    Abstract: A soda lime glass plate has, on the basis of oxides, a total sulfur content in terms of SO3 of 0.001 to 0.2% in mass %, a total iron content in terms of Fe2O3 of 0.15 to 0.4% in mass %, and a total tin content in terms of SnO2 of 0.02 to 1% in mass %, and has a mass proportion of a divalent iron in terms of Fe2O3 in the total iron in terms of Fe2O3 of 45 to 70%. The soda lime glass plate has, as a conversion value for a 3.85 mm-thickness glass plate, a visible light transmittance Tv_A of 70% or more, a total solar transmittance Tts of 63.7% or less, and c* in the L*a*b* color space of 4 or less.
    Type: Grant
    Filed: April 18, 2019
    Date of Patent: January 10, 2023
    Assignee: AGC Inc.
    Inventors: Hiroyuki Hijiya, Kensuke Nagai
  • Glass for chemical strengthening, chemically strengthened glass and method for manufacturing chemically strengthened glass
    Patent number: 11535548
    Abstract: A glass for chemical strengthening has a Young's modulus E of 70 GPa or more. The glass satisfies X1+X2+X3 being 1760 or less. Here, X1 is a numerical value equivalent to a value [unit: kPa/° C.] obtained by multiplying the Young's modulus E by an average coefficient ? of thermal expansion at 50° C. to 350° C., X2 is a numeral value equivalent to a value of a temperature Tf [unit: ° C.] at which a viscosity of the glass reaches 100 MPa·s, and X3 is a numerical value equivalent to a value of a difference [unit: 105 Pa·s] between the viscosity (100 MPa·s) at the Tf and a viscosity ?+10 at a temperature 10° C. higher than the Tf.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: December 27, 2022
    Assignee: AGC INC.
    Inventors: Suguru Murayama, Satoshi Kanasugi, Madoka Ono
  • 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