Patents Examined by Elizabeth A. Bolden
  • Glass article with high coefficient of thermal expansion
    Patent number: 10676389
    Abstract: A glass article includes an alkali-alkaline-alumino-silicate composition, wherein the glass article has a coefficient of thermal expansion (CTE) in a range from about 110×10?7/° C. to about 130×10?7/° C. over a temperature range of 0-300° C.
    Type: Grant
    Filed: September 29, 2016
    Date of Patent: June 9, 2020
    Assignee: Corning Incorporated
    Inventors: Jeffrey Todd Kohli, Ronald Leroy Stewart
  • High performance glass fiber composition, and glass fiber and composite material thereof
    Patent number: 10669189
    Abstract: Provided are a high-performance glass fiber composition, and a glass fiber and composite material thereof. The content, given in weight percentage, of each component of the glass fibre composition is as follows: 52-64% of SiO2, 12-24% of Al2O3, 0.05-8% of Y2O3+La2O3+Gd2O3, less than 2.5% of Li2O+Na2O+K2O, more than 1% of K2O, 10-24% of CaO+MgO+SrO, 2-14% of CaO, less than 13% of MgO, less than 2% of TiO2, and less than 1.5% of Fe2O3. The composition significantly increases the mechanical strength and the elastic modulus of glass, significantly reduces the liquidus temperature and the forming temperature of glass, and under equal conditions, significantly reduces the crystallization rate, the surface tension and the bubble rate of glass. The composition is particularly suitable for the tank furnace production of a high-strength high-modulus glass fiber having a low bubble rate.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: June 2, 2020
    Assignee: JUSHI GROUP CO., LTD.
    Inventors: Yuqiang Zhang, Guorong Cao, Lin Zhang, Wenzhong Xing, Xiucheng Hong
  • Borosilicate glass for pharmaceutical container
    Patent number: 10669186
    Abstract: A borosilicate glass for a pharmaceutical container includes SiO2, Al2O3, B2O3, and R2O (R is one or more kinds selected from Li, Na, and K) as essential components, in which a content of CaO is equal to or greater than 0 and smaller than 0.5 mol %, a value of (Na2O+K2O+Li2O—Al2O3)/B2O3 is 0.315 to 0.350 in terms of a molar ratio, and BaO is not substantially included.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: June 2, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Miki Kimura, Shinsaku Nishida, Ken Choju
  • Borosilicate glass, light guide plate comprising the same and fabricating methods thereof
    Patent number: 10662107
    Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: May 26, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Du-Sun Hwang, Hyun-Jin Shim, Chang-Hee Lee, Byung-Kook Choi, Jun-Bo Choi
  • Chemically temperable glass sheet
    Patent number: 10654750
    Abstract: Chemically temperable glass sheet The invention relates to a glass sheet having a boron-, strontium- and lithium-free glass composition comprising the following in weight percentage, expressed with respect to the total weight of glass: 65?SiO2?78% 8?Na2O?15% 1?K2O<6% 1?Al2O3<3% 2?CaO<10% 0?MgO?6%; as well as a total iron (expressed in the form of Fe2O3) in a content ranging from 0.002 to 0.02% by weight and a K2O/(K2O+Na2O) ratio which is ranging from 0.1 and 0.7. The invention corresponds to an easy chemically-temperable soda-lime-silica type glass composition, which is more suited for use in electronic devices applications.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: May 19, 2020
    Assignee: AGC GLASS EUROPE
    Inventor: Thomas Lambricht
  • Glass
    Patent number: 10654744
    Abstract: A glass of the present invention includes as a glass composition, in terms of mol %, 60% to 80% of SiO2, 12% to 25% of Al2O3, 0% to 3% of B2O3, 0% to 3% of Li2O+Na2O+K2O, 5% to 25% of MgO+CaO+SrO+BaO, and 0.1% to 10% of P2O5, and has a strain point of more than 730° C.
    Type: Grant
    Filed: January 5, 2017
    Date of Patent: May 19, 2020
    Assignee: NIPPON ELECTRIC GLASS CO., LTD.
    Inventors: Atsuki Saito, Masahiro Hayashi
  • Dental cement
    Patent number: 10646410
    Abstract: In one aspect of the present invention, a dental cement contains a glass powder, wherein the glass powder contains zinc, silicon, and fluorine and does not substantially contain aluminum.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: May 12, 2020
    Assignee: GC CORPORATION
    Inventors: Ryosuke Yoshimitsu, Satomi Tateiwa, Shigenori Akiyama, Katsushi Yamamoto, Syouichi Fukushima
  • Ultraviolet transmitting glass
    Patent number: 10647607
    Abstract: An ultraviolet transmitting glass containing, in mole percentage based on oxides, 55 to 80% of SiO2, 12 to 27% of B2O3, 4 to 20% of R2O (where R represents an alkali metal selected from a group consisting of Li, Na, and K) in total, 0 to 3.5% of Al2O3, 0 to 5% of R?O (where R? represents an alkaline earth metal selected from a group consisting of Mg, Ca, Sr, and Ba) in total, 0 to 5% of ZnO, and 0 to 10% of ZrO2, wherein transmittance at a wavelength of 254 nm in terms of spectral transmittance at a plate thickness of 0.5 mm is 70% or more. The glass with high ultraviolet light transmittance, in particular, high deep ultraviolet light transmittance is provided.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: May 12, 2020
    Assignee: AGC Inc.
    Inventors: Takahiro Sakagami, Makoto Shiratori
  • Dental glass powder
    Patent number: 10646408
    Abstract: In one aspect of the present invention, a dental glass powder contains zinc, silicon, and fluorine and does not substantially contain aluminum.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: May 12, 2020
    Assignee: GC CORPORATION
    Inventors: Ryosuke Yoshimitsu, Satomi Tateiwa, Shigenori Akiyama, Katsushi Yamamoto, Syouichi Fukushima
  • Lithium containing aluminosilicate glasses
    Patent number: 10640415
    Abstract: A glass pharmaceutical package having a glass composition of 68.00 mol % to 81.00 mol % SiO2, from 4.00 mol % to 11.00 mol % Al2O3, from 0.10 mol % to 16.00 mol % Li2O, from 0.10 mol % to 12.00 mol % Na2O, from 0.00 mol % to 5.00 mol % K2O, from 0.10 mol % to 8.00 mol % MgO, from 0.10 mol % to 5.00 mol % CaO, from 0.00 mol % to 0.20 mol % fining agent. The glass pharmaceutical package is delamination resistant, and has class 1 or class 2 chemical durability in acid, base, and water. The glass pharmaceutical package may be substantially free of B2O3, SrO, BaO, and ZrO2.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: May 5, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Steven Edward DeMartino, Nadja Teresia Lönnroth, Lina Ma, Robert Anthony Schaut, Charlene Marie Smith, Zhongzhi Tang, Jamie Todd Westbrook
  • Chemically strengthened glass and methods of making same
    Patent number: 10633280
    Abstract: In one aspect, a method for use in preparing a glass includes performing an ion exchange process by treating the glass with a eutectic mixture including at least a first rubidium salt. In another aspect, a glass is prepared at least in part by performing an ion exchange process by treating the glass with a eutectic mixture including at least a first rubidium salt.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: April 28, 2020
    Assignee: International Business Machines Corporation
    Inventors: Qiang Huang, Kenneth P. Rodbell, Asli Sahin
  • Glasses with low excess modifier content
    Patent number: 10633279
    Abstract: A glass composition includes: from 55.0 mol % to 70.0 mol % SiO2; from 12.0 mol % to 20.0 mol % Al2O3; from 5.0 mol % to 15.0 mol % Li2O; and from 4.0 mol % to 15.0 mol % Na2O. The glass composition has the following relationships ?8.00 mol %?R2O+RO—Al2O3—B2O3—P2O5??1.75 mol %, 9.00?(SiO2+Al2O3+Li2O)/Na2O, and (Li2O+Al2O3+P2O5)/(Na2O+B2O3)?3.50. The glass composition may be used in a glass article or a consumer electronic product.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: April 28, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Timothy Michael Gross, Xiaoju Guo, Peter Joseph Lezzi, Alexandra Lai Ching Kao Andrews Mitchell, Rostislav Vatchev Roussev
  • Ultraviolet-radiation absorbing glass product
    Patent number: 10626044
    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 7, 2018
    Date of Patent: April 21, 2020
    Assignee: AGC Inc.
    Inventors: Shuichi Akada, Soshi Watanabe
  • Glass sheet having high transmission of infrared radiation
    Patent number: 10626043
    Abstract: A coloured glass sheet having a high transmission of infrared (IR) radiation, the composition comprising, in a content expressed as percentages by total weight of glass: SiO2 55-85%? Al2O3 0-30% B2O3 0-20% Na2O 0-25% CaO 0-20% MgO 0-15% K2O 0-20% total iron (expressed in Fe2O3 form) 0.02-1%? Co 0.0001-0.5%???? Cr2O3 0.002-0.5%;??? said sheet having: TIR4>TLD4. The glass sheet can advantageously have a blue or green shade and be used in a device requiring very good transmission of IR radiation.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: April 21, 2020
    Assignee: AGC GLASS EUROPE
    Inventors: Thomas Lambricht, Audrey Dogimont, Aline Degand
  • Heat-ray- and ultraviolet-absorbent glass sheet, and method for manufacturing same
    Patent number: 10611671
    Abstract: The present invention aims to provide a heat-ray- and ultraviolet-absorbing glass plate having low solar transmittance and ultraviolet transmittance, having a high visible light transmittance, and containing a small amount of bubbles. The present invention relates to a heat-ray- and ultraviolet-absorbing glass plate that is a soda lime glass having a specific composition, having a mass proportion of divalent iron to the total iron being 50% or more, and having, as a value calculated as 4 mm thickness of the glass plate, a visible light transmittance Tv of 66% or more, a solar transmittance Te of 65% or less, a ratio Tv/Te of Tv and Te of 1.3 or more, and an ultraviolet transmittance Tuv of 50% or less.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: April 7, 2020
    Assignee: AGC Inc.
    Inventors: Hiroyuki Hijiya, Kensuke Nagai, Eriko Maeda
  • Ion-exchanged glass of high surface compression and shallow depth of layer with high resistance to radial crack formation from vickers indentation
    Patent number: 10611674
    Abstract: Disclosed are alkali aluminosilicate glasses having unexpected resistance to indentation cracking. The glasses obtain this high resistance as a result of a high level of surface compression accompanied by a shallow depth of layer. The advantaged glasses show greater resistance to radial crack formation from Vickers indentation than glasses with the same compressive stress, but higher depths of layer.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: April 7, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Jonathan David Pesansky, Chandan Kumar Saha, Trevor E Wilantewicz
  • Borosilicate glass, light guide plate comprising the same and fabricating methods thereof
    Patent number: 10611672
    Abstract: Provided is glass with high temperature stability, a low coefficient of thermal expansion and a high mechanical strength, a light guide plate including the glass to replace the conventional PMMA and metal frame, and fabricating methods thereof. The glass according to the present disclosure is borosilicate glass containing 75˜85 wt % of SiO2, 5˜15 wt % of B2O3, 0˜5 wt % of Al2O3, R2O 1˜7 wt % where R is at least one of Li, Na and K, and <0.005 wt % of Fe2O3 and having the redox ratio 0.5 or more. This glass maintains luminance and has an excellent color difference reduction effect when used in a light guide plate.
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: April 7, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Du-Sun Hwang, Hyun-Jin Shim, Chang-Hee Lee, Byung-Kook Choi, Jun-Bo Choi
  • Glass compositions with improved chemical and mechanical durability
    Patent number: 10597322
    Abstract: The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. In another embodiment, a glass composition may include from about 70 mol. % to about 80 mol. % SiO2; from about 3 mol. % to about 13 mol. % alkaline earth oxide; X mol. % Al2O3; and Y mol. % alkali oxide. The alkali oxide may include Na2O in an amount greater than about 8 mol. %. A ratio of Y:X may be greater than 1 and the glass composition may be free of boron and compounds of boron. In some embodiments, the glass composition may also be free of phosphorous and compounds of phosphorous. Glass articles formed from the glass composition may have at least a class S3 acid resistance according to DIN 12116, at least a class A2 base resistance according to ISO 695, and a type HGA1 hydrolytic resistance according to ISO 720.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: March 24, 2020
    Assignee: CORNING INCORPORATED
    Inventors: Paul Stephen Danielson, Steven Edward DeMartino, Melinda Ann Drake, Robert Michael Morena, Santona Pal, Robert Anthony Schaut
  • High performance glass fiber composition, and glass fiber and composite material thereof
    Patent number: 10590027
    Abstract: Provided are a high performance glass fiber composition, and a glass fiber and a composite material thereof. The content, given in weight percentage, of each component of the glass fiber composition is as follows: 52-67% of SiO2, 12-24% of Al2O3, 0.05-4.5% of Sm2O3+Gd2O3, less than 2% of Li2O+Na2O+K2O, 10-24% of CaO+MgO+SrO, less than 16% of CaO, less than 13% of MgO, less than 3% of TiO2, and less than 1.5% of Fe2O3. The composition significantly improves the mechanical properties and the thermal stability of glass, significantly reduces the liquidus temperature and forming temperature of glass, and under equal conditions, significantly reduces the crystallisation rate of glass. The composition is particularly suitable for the tank furnace production of a high performance glass fiber having excellent thermal stability.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 17, 2020
    Assignee: JUSHI GROUP CO., LTD.
    Inventors: Yuqiang Zhang, Guorong Cao, Lin Zhang, Wenzhong Xing, Guijiang Gu
  • Ultraviolet-absorbent glass
    Patent number: 10577276
    Abstract: The purpose of the present invention is to provide an ultraviolet-absorbent glass that is suitable as a dark gray glass, that has a very low ultraviolet transmittance (TUV), and that has excellent color rendering properties for green. The present invention relates to an ultraviolet-absorbent glass in which: the ultraviolet transmittance (TUV) as defined in ISO 9050:2003 is 2% or less for a thickness of 2.8 mm; the visible light transmittance (TVA) based on a standard A light source is 10% to 30% inclusive for a thickness of 2.8 mm; the energy transmittance (TE) as defined in JIS R 3106:1998 is 30% or less for a thickness of 2.8 mm; a ratio R14/R9 for color rendering indices as defined in ISO 9050:1990 and JIS Z 8726:1990 is 1.8 or greater; and a ratio R14/R1 is 1.05 or greater.
    Type: Grant
    Filed: July 12, 2018
    Date of Patent: March 3, 2020
    Assignee: AGC INC.
    Inventors: Shuichi Akada, Soshi Watanabe