Patents Examined by Elizabeth A. Bolden
  • 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
  • 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
  • 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
  • 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
  • Chemically strengthenable lithium aluminosilicate glasses with inherent damage resistance
    Patent number: 11220452
    Abstract: A group of glass compositions in the Li2O—Al2O3—SiO2—B2O3 family that can be chemically strengthened in single or multiple ion exchange baths containing at least one of NaNO3 and KNO3 for a short time (2-4 hours) to develop a deep depth of layer (DOL). In some instances, the DOL is at least 70 ?m; in others, at least about 100 ?m. The ion exchanged glasses have a high damage resistance (indentation fracture toughness ranging form greater than 10 kgf to greater than 50 kgf) that is better than or at least comparable to that of sodium aluminosilicate glasses.
    Type: Grant
    Filed: November 16, 2018
    Date of Patent: January 11, 2022
    Assignee: CORNING INCORPORATED
    Inventors: George Halsey Beall, Matthew John Dejneka, Qiang Fu, Sinue Gomez, Robert Michael Morena, Charlene Marie Smith
  • Glass sheet approaching neutrality irrespective of its thickness
    Patent number: 11214507
    Abstract: A glass sheet having a composition comprising a total iron content of 0.002-0.03% expressed in the form of Fe2O3 and in weight percentage with respect to the total weight of glass, and further satisfying the formula N*5?0.05; N*5 being defined as N*5=?{square root over ((a*5?a*0)2+(b*5?b*0)2)}, a*5 and b*5 being measured for a sheet thickness of 5 mm in transmission with illuminant D65, 10°, SCI; a*0 and b*0 being computed for a sheet thickness of 0 mm in transmission with illuminant D65, 10°, SCI. Such a glass sheet allows a color rendering of the sheet which is essentially the same whatever the view path available for an observer of the object integrating said glass sheet (when looking through its main faces or through its edges or through a zone bearing a diffusing coating).
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: January 4, 2022
    Assignee: AGC GLASS EUROPE
    Inventors: Thomas Lambricht, Audrey Dogimont
  • High performance fiberglass composition
    Patent number: 11214512
    Abstract: A glass composition is provided that includes about 55.0 to 60.4% by weight SiO2, about 19.0 to 25.0% by weight Al2O3, about 8.0 to 15.0% by weight MgO, about 7 to 12.0% by weight CaO, less than 0.5% by weight Li2O, 0.0 to about 1.0% by weight Na2O, and 0 to about 1.5% by weight TiO2. The glass composition has a fiberizing temperature of no greater than about 2,500° F. Glass fibers formed from the inventive composition may be used in applications that require high stiffness, and low weight. Such applications include woven fabrics for use in forming wind blades and aerospace structures.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: January 4, 2022
    Assignee: Owens Coming Intellectual Capital, LLC
    Inventors: Peter Bernard McGinnis, Michelle Korwin-Edson
  • Transparent, near infrared-shielding glass ceramic
    Patent number: 11214511
    Abstract: Optically transparent glass ceramic materials comprising a glass phase containing and a crystalline tungsten bronze phase comprising nanoparticles and having the formula MxWO3, where M includes at least one H, Li, Na, K, Rb, Cs, Ca, Sr, Ba, Zn, Cu, Ag, Sn, Cd, In, Tl, Pb, Bi, Th, La, Pr, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and U, and where 0<x<1. Aluminosilicate and zinc-bismuth-borate glasses comprising at least one of Sm2O3, Pr2O3, and Er2O3 are also provided.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 4, 2022
    Assignee: Corning Incorporated
    Inventors: Matthew John Dejneka, Jesse Kohl, Mallanagouda Dyamanagouda Patil
  • Low biopersistence inorganic fiber free of crystalline silica
    Patent number: 11203551
    Abstract: An inorganic fiber containing silica, alumina, one or more alkali metal oxides, and one or more of alkaline earth metal oxides, transition metal oxides, or lanthanide series metal oxides. The inorganic fiber exhibits good thermal performance at use temperatures of 1260° C. and greater, retains mechanical integrity after exposure to the use temperatures, is free of crystalline silica upon devitrification, is alkali flux resistant, exhibits low bio-persistence in an acidic medium, and exhibits low dissolution in a neutral medium. Also provided are thermal insulation products incorporating the inorganic fibers, a method for preparing the inorganic fiber and a method of thermally insulating articles using thermal insulation prepared from the inorganic fibers.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: December 21, 2021
    Assignee: UNIFRAX I LLC
    Inventors: Donghui Zhao, Bruce K. Zoitos, Michael J. Andrejcak, Jason M. Hamilton, Karen L. Hanson
  • Chemically temperable glass sheet
    Patent number: 11203549
    Abstract: The invention relates to a glass sheet having a glass composition comprising the following in weight percentage, expressed with respect to the total weight of glass: 60?SiO2?78%; 5?Na2O?20%; 0.9<K2O?12%; 4.9?Al2O3?8%; 0.4<CaO<2%; 4<MgO?12%. The invention corresponds to an easily chemically-temperable soda-silica type glass composition, which is more suited for mass production than aluminosilicate glass, and therefore is available at low cost, and with a base glass/matrix composition that is close to or very similar to compositions already used in existing mass production.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: December 21, 2021
    Assignee: AGC GLASS EUROPE
    Inventor: Thomas Lambricht