Patents Examined by Elizabeth A. Bolden
  • 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
  • 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 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
  • 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
  • Multichroic glasses
    Patent number: 11306246
    Abstract: A glass having from greater than or equal to about 0.1 mol. % to less than or equal to about 20 mol. % Ho2O3, and one or more chromophores selected from V, Cr, Mn, Fe, Co, Ni, Se, Pr, Nd, Er, Yb, and combinations thereof. The amount of Ho2O3 (mol. %) is greater than or equal to 0.7 (CeO2 (mol. %)+Pr2O3 (mol. %)+Er2O3 (mol. %)). The glass can include one or more fluorescent ions selected from Cu, Sn, Ce, Eu, Tb, Tm, and combinations thereof in addition to, or in place of the chromophores. The glass can also include multiple fluorescent ions.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: April 19, 2022
    Assignee: Corning Incorporated
    Inventors: Matthew John Dejneka, Timothy James Kiczenski
  • Glass sheet with a high luminous transmittance and with warm-toned to neutral colored edges
    Patent number: 11306020
    Abstract: The invention relates to a glass sheet having a luminous transmission LTD4?87% and having a composition free of antimony and arsenic, comprising total iron (expressed in the form of Fe2O3) from 0.002-0.04% and erbium (expressed in the form of Er2O3) from 0.003-0.1%. The glass sheet composition further having a redox ratio ?32% and satisfying the formula 1.3*Fe2O3?Er2O3?21.87*Cr2O3?53.12*Co?2.6*Fe2O3. Such a glass sheet has a high luminous transmittance and has warm-toned to neutral colored edges and is particularly suitable due to its aesthetics as building glass or interior glass, as well as in furniture applications, as automotive glass, or as cover glass in electronic devices/displays.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: April 19, 2022
    Assignee: AGC GLASS EUROPE
    Inventors: Thomas Lambricht, Audrey Dogimont
  • High luminous transmittance glass sheet with achromatic edges
    Patent number: 11279648
    Abstract: The invention relates to glass sheet having a composition comprising the following in weight percentage, expressed with respect to the total weight of glass: Total iron (expressed in the form of Fe2O3) 0.002-0.15% Selenium (expressed in the form of Se) 0.0003-0.005% Cobalt (expressed in the form of Co) 0.00005-0.0015%; the glass sheet being characterized in that: N?10.3*Fe2O3+0.11; N being defined as Formula (I). Such a glass sheet has a high luminous transmittance and has colorless/achromatic edges (very neutral in color). This invention is particularly suitable due to its aesthetics as building glass or interior glass, like for example in furniture applications.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: March 22, 2022
    Assignee: AGC GLASS EUROPE
    Inventors: Thomas Lambricht, Audrey Dogimont, Aline Degand
  • High-modulus glass fiber composition based on basalt
    Patent number: 11254604
    Abstract: A high-modulus glass fiber composition based on basalt includes components with contents in mass percentage satisfying SiO2: 53.0%-60.0%; Al2O3: 24.5%-28.0 %; MgO: 8%-15.0%; Fe2O3: 1.5%-5.5%; TiO2: 2.0%-4.0%; 0<CaO?5.0%; and 0<Na2O+K2O?2.0%.
    Type: Grant
    Filed: June 6, 2019
    Date of Patent: February 22, 2022
    Assignee: TAISHAN FIBERGLASS INC.
    Inventors: Zhiyao Tang, Yuewu Hu, Yongyan Li
  • Optical glass, optical element, optical instrument, and method for manufacturing optical glass
    Patent number: 11254602
    Abstract: An optical glass includes La3+, Zn2+, Nb5+, and Ti4+ as a cation configuring glass. La3+, Zn2+, Nb5+, and Ti4+ which satisfy 10 cat %?La3+?20 cat %, 10 cat %?Zn2+?60 cat %, 20 cat %?Nb5+?60 cat %, and 0 cat %?Ti4+?40 cat % expressed by cation %.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: February 22, 2022
    Assignee: Canon Kabushiki Kaisha
    Inventor: Michio Endo
  • Optical boroaluminate glasses
    Patent number: 11247934
    Abstract: An optical boroaluminate glass article comprises: from greater than or equal to 10.0 mol % to less than or equal to 30.0 mol % Al2O3; from greater than or equal to 10.0 mol % to less than or equal to 55.0 mol % CaO; from greater than or equal to 10.0 mol % to less than or equal to 25.0 mol % B2O3; from greater than or equal to 0.0 mol % to less than or equal to 30.0 mol % SiO2; and from greater than or equal to 1.0 mol % to less than or equal to 20.0 mol % refractive index raising components. The optical boroaluminate glass article has a refractive index of the glass article, measured at 589.3 nm, of greater than or equal to 1.62, and a density of less than or equal to 4.00 g/cm3.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: February 15, 2022
    Assignee: Corning Incorporated
    Inventors: Bruce Gardiner Aitken, Lina Ma, John Christopher Mauro
  • High transmission glasses
    Patent number: 11242279
    Abstract: Compounds, compositions, articles, devices, and methods for the manufacture of light guide plates and back light units including such light guide plates made from glass. In some embodiments, light guide plates (LGPs) are provided that have similar or superior optical properties to light guide plates made from PMMA and that have exceptional mechanical properties such as rigidity, CTE and dimensional stability in high moisture conditions as compared to PMMA light guide plates.
    Type: Grant
    Filed: October 18, 2016
    Date of Patent: February 8, 2022
    Assignee: Corning Incorporated
    Inventors: Melissann Marie Ashton-Patton, Adam James Ellison, Ellen Anne King
  • Optical glass, optical element, and preform
    Patent number: 11236010
    Abstract: To provide an optical glass having the optical characteristics of a high refractive index and low dispersion, and moreover, which makes it possible to further reduce devitrification and which can be stably obtained, and a preform and an optical element using the same. The optical glass comprises, expressed in cation % (mol %), 17.0% to 42.0% of P5+, 7.0% to 30.0% of Al3+, more than 0% to 22.0% of Mg2+, more than 0% to 25.0% Ca2+, more than 0% to 30.0% of Sr2+, more than 0% to 35.0% Ba2+, and expressed in anion % (mol %), a content ratio of F? of 37.0 to 64.0%, a content ratio of O2? of 36.0 to 63.0%, a refractive index (nd) of 1.48 to 1.58, and having an Abbe number (vd) of 70 to 88, and a liquidus temperature of 800° C. or less.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: February 1, 2022
    Assignee: OHARA INC.
    Inventors: Hiroto Nojima, Fumihiro Oguri
  • Optical glass, optical element including optical glass, and optical apparatus
    Patent number: 11236009
    Abstract: Provided is optical glass containing, in terms of mol % of cations: 10 to 60% of a La3+ component; more than 0% and up to 75% of a Ga3+ component; and 5 to 75% of a Nb5+ component, in which a total amount of the La3+ component, Ga3+ component, and Nb5+ component is 60 to 100%.
    Type: Grant
    Filed: February 22, 2019
    Date of Patent: February 1, 2022
    Assignees: THE UNIVERSITY OF TOKYO, NIKON CORPORATION
    Inventors: Hiroyuki Inoue, Atsunobu Masuno, Kohei Yoshimoto, Motoi Ueda, Hiroshi Yamamoto, Tatsunori Kawashima
  • Glass
    Patent number: 11236008
    Abstract: The present invention pertains to a glass characterized by: containing 72-82% of Li+, 0-21% of Si4+, and 0-28% of B3+ in terms of cation %; and containing at least 70% and less than 100% of O2? and more than 0% and at most 30% of Cl?, containing at least 94% and less than 100% of O2? and more than 0% and at most 6% of S2?, or containing at least 64% and less than 100% of O2?, more than 0% and at most 30% of Cl?, and more than 0% and at most 6% of S2?, in terms of anion %.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: February 1, 2022
    Assignee: AGC Inc.
    Inventors: Nanae Ishioka, Masamichi Tanida