And Halogen Or Nitrogen Patents (Class 501/56)
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Publication number: 20090113936Abstract: The present invention relates to a dental glass containing 50 to 70 wt. % of SiO2, 5 to 18 wt. % of Al2O3, 6.1 to 30 wt. % of MgO, 1 to 15 wt. % of La2O3, 1 to 15 wt. % of WO3, 0.1 to 8 wt. % of ZrO2, and optionally further oxides except for the oxides of Sr, Ba or alkali metals, wherein the stated quantities in total add up to 100 wt. %.Type: ApplicationFiled: September 25, 2006Publication date: May 7, 2009Applicants: IVOCLAR VIVADENT AG, EMPA DÜBENDORFInventors: Christian Ritzberger, Volker Rheinberger, Elke Apel, Peter Burtscher, Wolfram Holand, Thomas Graule, Simone Zurcher, Andri Vital
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Patent number: 7524780Abstract: A method of forming an alkali metal oxide-doped optical fiber by diffusing an alkali metal into a surface of a glass article is disclosed. The silica glass article may be in the form of a tube or a rod, or a collection of tubes or rods. The silica glass article containing the alkali metal, and impurities that may have been unintentionally diffused into the glass article, is etched to a depth sufficient to remove the impurities. The silica glass article may be further processed to form a complete optical fiber preform. The preform, when drawn into an optical fiber, exhibits a low attenuation.Type: GrantFiled: January 28, 2005Date of Patent: April 28, 2009Assignee: Corning IncorporatedInventors: Laura J. Ball, Bruno P. M. Baney, Dana C. Bookbinder, Keith L. House, Rostislav R. Khrapko, Lisa A. Moore, Susan L. Schiefelbein
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Publication number: 20090088309Abstract: A glass composition of the present invention includes the following components, in terms of mass % and mass ppm: 60 to 79% SiO2; 0 to 13% B2O3 (exclusive of 13%); 0 to 10% Al2O3; 0 to 10% Li2O; more than 0% but not more than 20% Na2O; 0 to 15% K2O; 0 to 10% MgO; 0 to 15% CaO; 0 to 15% SrO; 0 to 15% BaO; 0 to 10% ZnO; 0 to 15% Nb2O5; 0 to 20% Ta2O5; more than 0.02% but not more than 10% TiO2; and 0.5 to 50 ppm T-Fe2O3 (where T-Fe2O3 denotes a total iron oxide obtained by converting all of iron compounds into Fe2O3).Type: ApplicationFiled: February 14, 2007Publication date: April 2, 2009Applicant: Nippon Sheet Glass Company, LimitedInventors: Haruki Niida, Akihiro Koyama
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Publication number: 20090075805Abstract: An ultraviolet ray transmitting glass composition including the following components, in terms of mass % or mass ppm: 60 to 79% SiO2; 0 to 1% B2O3; exceeded 0% but not more than 20% Al2O3; 0 to 10% Li2O; 5 to 20% Na2O; 0 to 15% K2O; 0 to 10% MgO; 0 to 10% CaO; 0 to 15% SrO; 0 to 2% refining agent; 2 to 20 ppm T-Fe2O3 (in which T-Fe2O3 denotes a total iron oxide content obtained by converting all of iron compounds into Fe2O3); and 0 to 200 ppm TiO2. The ultraviolet ray transmitting glass composition is suitable for a glass article, such as a bioanalytical device that is used for analysis using ultraviolet rays.Type: ApplicationFiled: April 5, 2006Publication date: March 19, 2009Applicant: NIPPON SHEET GLASS COMPANY, LIMITEDInventors: Junji Kurachi, Koji Fujita, Haruki Niida, Akihiro Koyama
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Patent number: 7498284Abstract: A nitride glass with the general formula ?x?y?z is provided wherein ? is a glass modifier comprising at least one electropositive element. ? comprises Si, B, Ge, a and/or Al. ? is N or N together with O, whereby the atomic ratio of O:N is in the interval from 65:35 to 0:100.Type: GrantFiled: January 14, 2004Date of Patent: March 3, 2009Assignee: Diamorph ABInventor: Saeid Esmaeilzadeh
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Patent number: 7429546Abstract: A silica glass containing TiO2, which has a fictive temperature of at most 1,200° C., a F concentration of at least 100 ppm and a coefficient of thermal expansion of 0±200 ppb/° C. from 0 to 100° C. A process for producing a silica glass containing TiO2, which comprises a step of forming a porous glass body on a target quartz glass particles obtained by flame hydrolysis of glass-forming materials, a step of obtaining a fluorine-containing porous glass body, a step of obtaining a fluorine-containing vitrified glass body, a step of obtaining a fluorine-containing formed glass body and a step of carrying out annealing treatment.Type: GrantFiled: July 5, 2005Date of Patent: September 30, 2008Assignee: Asahi Glass Company, LimitedInventors: Yasutomi Iwahashi, Akio Koike
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Publication number: 20080139376Abstract: An optical glass for the manufacture of large transmission optics, such as lenses having a thickness of 100 millimeters or more, comprises 35 to 70 wt.-% SiO2, 17 to 35 wt.-% Al2O3, 3 to 17 wt.-% P2O5, 0 to 6 wt.-% Li2O, 0.5 to 4 wt.-% MgO, 0.5 to 3 wt.-% ZnO, a maximum of 1 wt.-% CaO, a maximum of 0.5 wt. % BaO, 0.5 to 6 wt.-% TiO2, 0.5 to 3 wt.-% ZrO2, 0 to 1 wt.-% Na2O, 0 to 1 wt.-% K2O, a maximum of 1 wt.-% of refining agents (As2O3, SP2O3) and a maximum of 500 ppm of other contaminants. The glass composition may be equal to the composition of the glass ceramic Zerodur® and allows to manufacture large transmission optics in a cost-effective way, has a maximum of transmittance which is in the range of a He—Ne lasers and has a CTE of about 3·10?6/K.Type: ApplicationFiled: December 5, 2007Publication date: June 12, 2008Inventors: Thorsten Doehring, Ina Mitra
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Publication number: 20080139375Abstract: Decorative paints are typically burned in at relatively high temperatures, preferably in connection with the thermal ceramicizing process. In order to provide a glass ceramic panel having a cooking surface with a pleasing deep black, very smooth decoration by a burned-in decorative paint, the glass ceramic panel is formed from a melt that is black and the decorative paint on the black glass ceramic panel contains a colorless glass flux and from 0 to 10 percent by weight of at least one black pigment. The decorative paint can consist of the colorless melted-on glass flux. The glass flux preferably has a composition in percent by weight of Li2O, 0-5; Na2O, 0-5; K2O, <2; ?Li2O+Na2O+K2O, 1-10; MgO, 0-3; CaO, 0-4; SrO, 0-4; BaO, 0-4; ZnO, 0-4; B2O3, 15-27; Al2O3, 10-20; SiO2, 43-58; TiO2, 0-3; ZrO2, Sb2O3, 0-2; F, 0-3.Type: ApplicationFiled: August 18, 2004Publication date: June 12, 2008Inventors: Dietmar Wennemann, Harald Striegler
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Publication number: 20080110208Abstract: Alkali-free glasses are disclosed which can be used to produce substrates for flat panel display devices, e.g., active matrix liquid crystal displays (AMLCDs). The glasses contain iron and tin as fining agents, and preferably are substantially free of arsenic and antimony. In certain embodiments, the glasses are also substantially free of barium. Methods for producing alkali-free glass sheets using a downdraw process (e.g., a fusion process) are also disclosed.Type: ApplicationFiled: November 13, 2006Publication date: May 15, 2008Inventor: Adam James Gillmar Ellison
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Publication number: 20080096754Abstract: In certain example embodiments of this invention, an ultraviolet (UV) transmissive soda-lime-silica glass is provided. In certain example embodiments of this invention, the UV transmissive soda-lime-silica glass may be made via the float process.Type: ApplicationFiled: October 19, 2006Publication date: April 24, 2008Inventors: Scott V. Thomsen, Ksenia A. Landa, Leonid M. Landa, Richard Hulme
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Patent number: 7294595Abstract: A silica glass containing from 3 to 10 mass % of TiO2, which has a coefficient of thermal expansion from 0 to 100° C., i.e. CTE0 to 100, of 0±300 ppb/° C. and an internal transmittance per mm in thickness within a wavelength region of from 200 to 700 nm, i.e. T200 to 700, of at most 80%.Type: GrantFiled: May 18, 2006Date of Patent: November 13, 2007Assignee: Asahi Glass Company, LimitedInventors: Yasutomi Iwahashi, Akio Koike
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Patent number: 7262144Abstract: The invention relates to a photostructurable body, in particular glass or glass-ceramic, in which the glass is a multicomponent glass and/or the glass-ceramic is a multicomponent glass-ceramic, in each case having a positive change in refractive index ?n as a result of the action of light.Type: GrantFiled: February 3, 2004Date of Patent: August 28, 2007Assignee: Schott AGInventors: Bianca Schreder, Josè Zimmer, Matthias Brinkmann, Michael Kluge
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Patent number: 7166549Abstract: The invention relates to an antimicrobial, anti-inflammatory and disinfecting glass, whereby the glass comprises: 30–95 wt. % SiO2,0–40 wt. % Na 2O, 0–40 wt. % K2O, 0–40 wt. % Li2O, 0–35 wt. % CaO, 0–10 wt. % MgO, 0–10 wt. % Al2O3, 0–15 wt. % P2O5 wt. % B2O3?, 0–10 wt. % NaF, 0–10 wt. % LiF, 0–10 wt. % KF, 0–10 wt. % CaF2, 0–5 wt. % Ag2O, 0–10 wt. % MgF2,0–2 wt. % Fe2O3and 0–10 wt. % XJy, where X?Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Ag or Zn and y=1 or y=2 and the sum of XJy> is 10 ppm.Type: GrantFiled: August 17, 2002Date of Patent: January 23, 2007Assignee: Schott AGInventors: Jorg Hinrich Fechner, José Zimmer
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Patent number: 7144834Abstract: The invention concerns an optical colored glass with a composition (in percent by weight based on oxide) of SiO2 30–75; K2O 5–35; B2O3>4–17; ZnO 5–37; F 0.01–10; CdO 0.1–1, S+Se+Te 0.1–1.5 as well as the use of this glass as a long-pass cutoff filter.Type: GrantFiled: August 20, 2002Date of Patent: December 5, 2006Assignee: Schott AGInventors: Rolf Clasen, Monika Gierke, Jochen Freund, Magdalena Winkler-Trudewig, Uwe Kolberg
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Patent number: 6989633Abstract: An alkaline-earth aluminosilicate glass having a composition (in % by weight, based on oxide) of SiO2>55-64; Al2O3 13-18; B2O3 0-5.5; M5O 0-7; CaO 5.5-14; SrO 0-8; BaO 6-17; ZrO2 0-2; CeO2 0-0.3; TiO2 0-0.5; CoO 0.01-0.035; Fe2O3 0.005-0.05; and NiO 0-0.Type: GrantFiled: February 3, 2003Date of Patent: January 24, 2006Assignee: Schott AGInventors: Christian Kunert, Karin Naumann, Franz Ott, Ottmar Becker
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Patent number: 6887808Abstract: Polarized glass articles having a wavelength range that is broadened for high contrast-ratio applications. A method that imparts to a glass article a high contrast ratio of at least 40 dB for use as dichroic glass polarizers over a wavelength range of 880 nm to 1,690 nm while keeping a high transmission value. The method comprises the step of heating the glass article at a temperature ranging from 400 to 450° C. in a reducing atmosphere for a period of time ranging from 12 to 30 hours. Preferably, the reducing atmosphere is hydrogen at atmospheric pressure.Type: GrantFiled: October 3, 2003Date of Patent: May 3, 2005Assignee: Corning IncorporatedInventor: Kenjiro Hasui
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Publication number: 20040198582Abstract: The present invention provides an optical element including a silver halide-containing glass material having a concentration of less than 0.001 wt % cerium; and a refractive index pattern formed in the silver halide-containing glass material, the refractive index pattern including regions of high refractive index and regions of low refractive index, the difference between the refractive indices of the high refractive index regions and the low refractive index regions being at least 4×10−5 at a wavelength of 633 nm. The present invention also provides methods for making optical elements from siliver halide-containing glass materials.Type: ApplicationFiled: April 1, 2003Publication date: October 7, 2004Inventors: Nicholas F. Borrelli, George B. Hares, Joseph F. Schroeder
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Publication number: 20040186000Abstract: A glass composition of the present invention relates to a multicomponent oxide glass composition manufactured by melting glass raw materials, which contains: 10 ppm or more of at least one type of a polyvalent element; minimum valence cations of the polyvalent element in a ratio of the minimum valence cation content to the total polyvalent element content of 5 to 98% in mass ratio; and 0.01 to 2 &mgr;l/g (0° C., 1 atm) of helium.Type: ApplicationFiled: February 17, 2004Publication date: September 23, 2004Inventors: Toru Kawamoto, Yoshifumi Sato, Toshifumi Matsuda
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Patent number: 6765721Abstract: A method for manufacturing a polarization element which has a high reliability and is easy to manufacture. The manufacturing method includes the steps of forming a fine metal particle dispersed product including a plurality of dispersed fine metal particles on a surface of the transparent substrate using a sol-gel method, drawing the fine metal particle dispersed product together with the transparent substrate while heating both, and cutting the drawn fine metal particle dispersed product and transparent substrate. The forming step includes the steps of coating a sol coating liquid on the surface of the transparent substrate, heat-treating the coated sol coating liquid, and sintering the heat-treated sol coating liquid. The sol coating liquid includes a disperse liquid containing an organic silicon compound as a main component and a metal salt dispersed in the disperse liquid for forming the fine metal particles.Type: GrantFiled: March 11, 2002Date of Patent: July 20, 2004Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Mitsuhiro Kawazu, Hiroaki Yamamoto
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Publication number: 20030207747Abstract: A narrowly defined range of zinc silicate glass compositions is found to produce High Energy Beam Sensitive-glass (HEBS-glass) that possesses the essential properties of a true gray level mask which is necessary for the fabrication of general three dimensional microstructures with one optical exposure in a conventional photolithographic process. The essential properties are (1) A mask pattern or image is grainiless even when observed under optical microscope at 1000× or at higher magnifications. (2) The HEBS-glass is insensitive and/or inert to photons in the spectral ranges employed in photolithographic processes, and is also insensitive and/or inert to visible spectral range of light so that a HEBS-glass mask blank and a HEBS-glass mask are permanently stable under room lighting conditions. (3) The HEBS-glass is sufficiently sensitive to electron beam exposure, so that the cost of making a mask using an e-beam writer is affordable for many applications.Type: ApplicationFiled: May 5, 2003Publication date: November 6, 2003Applicant: Canyon Materials, Inc.Inventors: Che-Kuang Wu, Laurie Ann Wu
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Publication number: 20030121288Abstract: An alkali-free glass applicable to a light transparent glass substrate in a liquid crystal display essentially consists, by weight, of basic elements of 40-70% SiO2, 6-25% Al2O3, 5-20% B2O3, 0-10% MgO, 0-15% CaO, 0-30% BaO, 0-10% SrO, and 0-10% ZnO, and a fining agent of a combination of 0.05-3% Sb2O3 and at least one of 0.05-2% SnO2 and 0.005-1% Cl2, which fining agent makes the resultant glass free from bubbles without the use of toxic As2O3 which has been known as the fining agent in the art.Type: ApplicationFiled: November 18, 2002Publication date: July 3, 2003Applicant: NIPPON ELECTRIC GLASS CO., LTD.Inventors: Jun Naka, Toshiharu Narita, Shinkichi Miwa, Shigeru Yamamoto
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Patent number: 6562523Abstract: A narrowly defined range of zinc silicate glass compositions is found to produce High Energy Beam Sensitive-glass (HEBS-glass) that possesses the essential properties of a true gray level mask which is necessary for the fabrication of general three dimensional microstructures with one optical exposure in a conventional photolithographic process. The essential properties are (1) A mask pattern or image is grainiless even when observed under optical microscope at 1000× or at higher magnifications. (2) The HEBS-glass is insensitive and/or inert to photons in the spectral ranges employed in photolithographic processes, and is also insensitive and/or inert to visible spectral range of light so that a HEBS-glass mask blank and a HEBS-glass mask are permanently stable under room lighting conditions. (3) The HEBS-glass is sufficiently sensitive to electron beam exposure, so that the cost of making a mask using an e-beam writer is affordable for many applications.Type: GrantFiled: February 18, 2000Date of Patent: May 13, 2003Assignee: Canyon Materials, Inc.Inventors: Che-Kuang Wu, Laurie Ann Wu
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Publication number: 20030087746Abstract: The invention concerns alkali-poor or alkali-free alkaline earth aluminum borosilicate glasses having the following composition (weight percent based on oxides) SiO2>55-70; B2O3 1-8; Al2O3 10-18; Na2O>1-5; K2O 0-4; with Na2O+K2O >1-5; MgO 0-5; CaO 3-<8; SrO 0.1-8; BaO 4.5-12; with MgO+CaO+SrO+BaO 10-25; SnO2 0-15; ZrO2 0-3; TiO2 0-2; ZnO 0-2. Said glasses can be used especially as substrates in thin layer photovoltaics, especially for CIS-based solar cells.Type: ApplicationFiled: August 2, 2002Publication date: May 8, 2003Inventors: Simone Ritter, Ulrich Peuchert
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Patent number: 6546753Abstract: An alkali-free glass applicable to a light transparent glass substrate in a liquid crystal display essentially consists, by weight, of basic elements of 40-70% SiO2, 6-25% Al2O3, 5-20% B2O3, 0-10% MgO, 0-15% CaO, 0-30% BaO, 0-10% SrO, and 0-10% ZnO, and a fining agent of a combination of 0.05-3% Sb2O3 and at least one of 0.05-2% SnO2 and 0.005-1% Cl2, which fining agent makes the resultant glass free from bubbles without the use of toxic As2O3 which has been known as the fining agent in the art.Type: GrantFiled: July 17, 2001Date of Patent: April 15, 2003Assignee: Nippon Electric Glass Co. Ltd.Inventors: Jun Naka, Toshiharu Narita, Shinkichi Miwa, Shigeru Yamamoto
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Patent number: 6508083Abstract: An alkali-free glass applicable to a light transparent glass substrate in a liquid crystal display essentially consists, by weight, of basic elements of 40-70% SiO2, 6-25% Al2O3, 5-20% B2O3, 0-10% MgO, 0-15% CaO, 0-30% BaO, 0-10% SrO, and 0-10% ZnO, and a fining agent of a combination of 0.05-3% Sb2O3 and at least one of 0.05-2% SnO2 and 0.005-1% Cl2, which fining agent makes the resultant glass free from bubbles without the use of toxic As2O3 which has been known as the fining agent in the art.Type: GrantFiled: August 20, 1997Date of Patent: January 21, 2003Assignee: Nippon Electric Glass Co., Ltd.Inventors: Jun Naka, Toshiharu Narita, Shinkichi Miwa, Shigeru Yamamoto
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Patent number: 6503860Abstract: According to one aspect of the present invention an optically active glass contains Sb2O3, up to about 4 mole % of an oxide of a rare earth element, and 0-20 mole % of a metal halide selected from the group consisting of a metal fluoride, a metal bromide, a metal chloride, and mixtures thereof, wherein this metal is a trivalent metal, a divalent metal, a monovalent metal, and mixtures thereof. In addition, any of the glass compositions described herein may contain up to 15 mole % B2O3 substituted for an equivalent amount of Sb2O3.Type: GrantFiled: February 4, 2000Date of Patent: January 7, 2003Assignee: Corning IncorporatedInventors: James E. Dickinson, Adam J. G. Ellison, Alexandre M. Mayolet, Michel Prassas
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Patent number: 6468933Abstract: An alkali-free glass essentially consists of, by weight percent, 40-70% SiO2, 6-25% Al2O3, 5-20% B2O3, 0-10% MgO, 0-15% CaO, 0-30% BaO, 0-10% SrO, 0-10% ZnO, 0.05-2% SnO2, and 0.005-1% Cl2, and substantially contains no alkali metal oxide.Type: GrantFiled: September 21, 1999Date of Patent: October 22, 2002Assignee: Nippon Electric Glass Co., Ltd.Inventors: Toshiharu Narita, Hiroki Yamazaki
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Patent number: 6465381Abstract: The invention relates to an alkali-free aluminoboro-silicate glass which has the following composition (in % by weight, based on oxide): SiO2 >60-65; B2O3 6.5-9.5; Al2O3 14-21; MgO 1-8; CaO 1-6; SrO 1-9; BaO 0.1-3.5; with MgO+CaO+SrO+BaO 8-16; ZrO2 0.1-1.5; SnO2 0.1-1; TiO2 0.1-1; CeO2 0.01-1. The glass is particularly suitable for use as a substrate glass in display technology.Type: GrantFiled: July 24, 2000Date of Patent: October 15, 2002Assignee: Schott GlasInventors: Gerhard Lautenschläger, Klaus Schneider, Thomas Kloss, Andreas Sprenger
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Patent number: 6442973Abstract: A method is provided for manufacturing a synthetic silica glass. The method includes the steps of maintaining a silica glass member, which is formed using a flame hydrolysis method and having an OH group concentration of about 500 ppm to about 1300 ppm, at a predetermined holding temperature for a predetermined period of time so as to substantially relax the structure of the silica glass member. The method further includes the step of subsequently cooling the silica glass member to a first predetermined temperature at a cooling rate of about 10 K/hour or less, and thereafter, cooling the silica glass member to a second predetermined temperature at a cooling rate of about 1 K/hour or less. The method further includes the step of further cooling the silica glass member to a third predetermined temperature at a cooling rate of about 10 K/hour or less.Type: GrantFiled: January 22, 1999Date of Patent: September 3, 2002Assignee: Nikon CorporationInventors: Norio Komine, Seishi Fujiwara, Akiko Yoshida, Hiroki Jinbo
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Patent number: 6444599Abstract: The present invention relates to an oxyhalide glass matrix including 0-70 mol. % SiO2, 5-35 mol. % Al2O3, 1-50 mol. % B2O3, 5-35 mol. % R2O, 0-12 wt. % F, 0-12 wt. % Cl, and 0 to 0.2 mol. % rare earth element, wherein R is Li, Na, K, Rb, or Cs. The present invention further relates to a method of producing the glass matrix and to a method of modifying the spectral properties of an oxyhalide glass.Type: GrantFiled: June 1, 2000Date of Patent: September 3, 2002Assignee: Corning IncorporationInventors: James E. Dickinson, Adam J. G. Ellison
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Patent number: 6436858Abstract: The principal object of the present invention is organic lens molds, constituted wholly or in part of at least one specific inorganic glass, advantageously strengthened by a chemical tempering or a thermal tempering. Said glass has the following composition, expressed in percentages by weight: SiO2 56-66, Al2O3 2.5-10, B2O3 0.5-7, Li2O 0-3, Na2O 8-15, K2O 3-12, with Li2O+Na2O+K2O 12-20, ZnO 2-12, MgO 0-3, TiO2 0-0.5, ZrO2 1-9, CaO 0-1, BaO 0-2, SrO 0-2, with MgO+CaO+SrO+BaO 0-5, Cl 0-0.5, As2O3+sb2O3 0-1. The invention also deals with novel inorganic glasses which have the above composition with a single exception relative to the Al2O3 content: Al2O3 2.5-4.Type: GrantFiled: January 4, 2000Date of Patent: August 20, 2002Assignee: Corning S.A.Inventors: Pascale Laborde, Daniel L. G. Ricoult
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Patent number: 6420290Abstract: The object of the present invention is colorless inorganic glasses, as well as products manufactured from said glasses. Said glasses are of the type containing copper halides or copper cadmium halides and having a sharp optical absorption cutoff between 370 nm and 425 nm essentially having the composition below, expressed in cationic percentages: 23-73% SiO2 15-45% B2O3 0-24% Al2O3 0-12% Li2O 0-20% Na2O 0-12% K2O 0-5% CaO + BaO + SrO 0.125-1% Cu2O 0-1% CdO 0-5% ZrO2 with 0-1.75% Cl 0.Type: GrantFiled: February 11, 2000Date of Patent: July 16, 2002Assignee: Corning S.A.Inventors: Yves A. H. Brocheton, Christophe Remy
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Patent number: 6417124Abstract: The invention relates a alkali-free aluminoborosilicate glasses having the following composition (in % by weight, based on oxide): SiO2 50-70, B2O3 0.5-15, Al2O3 10-25, MgO 0-10, CaO 0-12, SrO 0-12, BaO 0-15, with MgO+CaO+SrO+BaO 8-26, ZnO 0-10, ZrO2 0-5, TiO2 0-5, SnO2 0-2, MoO3 0.05-2. The glasses are particularly suitable as substract glasses for display and photovoltaic applications.Type: GrantFiled: August 21, 2000Date of Patent: July 9, 2002Assignee: Schott GlasInventors: Ulrich Peuchert, Thomas Pfeiffer, Peter Brix, Hildegard Roemer
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Patent number: 6410467Abstract: A glass consisting essentially of antimony oxide. An optically active glass consisting essentially of antimony oxide and up to about 4 mole % of an oxide of a rare earth element. A rare earth-doped, antimony oxide-containing glass including 0-99 mole % SiO2, 0-99 mole % GeO2, 0-75 mole % (Al, Ga)2O3, 0.5-99 mole % Sb2O3, and up to about 4 mole % of an oxide of a rare earth element. The oxide of the rare earth element may comprise Er2O3. The glass of the invention further includes fluorine, expressed as a metal fluoride. An optical energy-producing or light-amplifying device, in particular, an optical amplifier, comprising the above-described glass. The optical amplifier can be either a fiber amplifier or a planar amplifier, either of which may have a hybrid composition. Embodiments of the glass of the invention can be formed by conventional glass making techniques, while some of the high content antimony oxide embodiments are formed by splat or roller quenching.Type: GrantFiled: April 8, 1999Date of Patent: June 25, 2002Assignee: Corning IncorporatedInventors: James E. Dickinson, Adam J G Ellison, Alexandre M. Mayolet, Michel Prassas
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Patent number: 6355587Abstract: The application discloses a number of unique sintered quartz glass products together with new silica compositions and processes for making and using such products. Nitrided clear and opaque nitrided quartz products are disclosed having incredible physical properties resulting from the incorporation of very small, but effective, amounts (e.g., 25 ppm or more) of chemically bound nitrogen. Opaque quartz glass heat shields with remarkable resistance to transmission of infrared radiation are disclosed which can have a high bubble population density, such as 80 to 120 per mm2. These heat shields make possible remarkable improvement in the performance of tube furnaces and other reactors used in processing silicon wafers and other electronic components.Type: GrantFiled: August 18, 1997Date of Patent: March 12, 2002Inventors: Ted A. Loxley, John F. Blackmer, Klaus-Markus Peters
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Publication number: 20020019305Abstract: A narrowly defined range of zinc silicate glass compositions is found to produce High Energy Beam Sensitive-glass (HEBS-glass) that possesses the essential properties of a true gray level mask which is necessary for the fabrication of general three dimensional microstructures with one optical exposure in a conventional photolithographic process. The essential properties are (1) A mask pattern or image is grainiless even when observed under optical microscope at 1000× or at higher magnifications. (2) The HEBS-glass is insensitive and/or inert to photons in the spectral ranges employed in photolithographic processes, and is also insensitive and/or inert to visible spectral range of light so that a HEBS-glass mask blank and a HEBS-glass mask are permanently stable under room lighting conditions. (3) The HEBS-glass is sufficiently sensitive to electron beam exposure, so that the cost of making a mask using an e-beam writer is affordable for at least certain applications.Type: ApplicationFiled: August 21, 2001Publication date: February 14, 2002Inventor: Che-Kuang Wu
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Publication number: 20010056029Abstract: Oxynitride glass whose composition is represented by Al—Si—O—N or M—Al—Si—O—N (where M denotes Ca, Mg, or rare earth element), wherein the content of O and N as non-metallic components is in the range of O eq %<N≦30 eq %, with O+N=100 eq %, the content of M, Al, and Si as metallic components is in the range of 20 eq %≦Al≦30 eq % and 70 eq %≦Si≦80 eq %, respectively, with Al+Si=100 eq % (if M does not exist) and the content of M, Al, and Si as metallic components is within the hatched area in the composition diagrams shown in FIGS. 1 to 3, if M is Ca, Mg, or rare earth metal, or within the hatched area in the composition diagrams shown in FIGS. 4 to 8, if the content of N is in the range of 5 eq %≦N≦25 eq %.Type: ApplicationFiled: September 14, 1999Publication date: December 27, 2001Inventors: MORIYOSHI KANAMARU, TOMOJI TAKAHASHI, KAZUTAKA KUNII, TAKAO KAWANAKA
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Patent number: 6333286Abstract: A glass composition is disclosed which has a high modulus of elasticity (Young's modulus) and a high rigidity (modulus of elasticity/specific gravity) and is capable of being effectively inhibited from bending or vibrating. Also disclosed is a substrate for information recording media which comprises the glass composition. The glass composition comprises the following components, in terms of mol %: 55 to 65% SiO2, 0.5 to less than 6% Al2O3, 12 to 22% Li2O, 0 to 5% Na2O, 0 to 10% TiO2, 0 to 3% ZrO2, 0 to 8% MgO, 0 to 18% CaO, and 0 to 6% SrO, provided that the content of RO (RO=MgO+CaO+SrO) is 5 to 18%.Type: GrantFiled: August 19, 1999Date of Patent: December 25, 2001Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Junji Kurachi, Akihiro Koyama, Shoichi Kishimoto, Nobuyuki Yamamoto
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Patent number: 6329309Abstract: Oxynitride glass whose composition is represented by Al—Si—O—N or M—Al—Si—O—N (where M denotes Ca, Mg, or rare earth element), wherein the content of O and N as non-metallic components is in the range of 0 eq %<N≦30 eq %, with O+N=100 eq %, the content of M, Al, and Si as metallic components is in the range of 20 eq %≦Al≦30 eq % and 70 eq %≦Si≦80 eq %, respectively, with Al+Si=100 eq % (if M does not exist) and the content of M, Al, and Si as metallic components is within the hatched area in the composition diagrams shown in FIGS. 1 to 3, if M is Ca, Mg, or rare earth metal, or within the hatched area in the composition diagrams shown in FIGS. 4 to 8, if the content of N is in the range of 5 eq %≦N≦25 eq %. This glass is superior in specific rigidity and fabricability. It contains nitrogen in a controlled amount so that it has improved specific rigidity without its specific gravity increasing.Type: GrantFiled: September 14, 1999Date of Patent: December 11, 2001Assignee: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)Inventors: Moriyoshi Kanamaru, Tomoji Takahashi, Kazutaka Kunii, Takao Kawanaka
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Patent number: 6313947Abstract: A light polarizing glass article comprising a base glass and metallic copper particles dispersed in said base glass wherein said metallic copper particles have aspect ratios in the range of from about 2:1 to 15:1 and said base glass is selected from the group consisting of silicate, borosilicate, borate and phosphate glasses which contain at least one reductant element. The article is prepared by heating a batch of glass containing copper and halogen containing constituents to develop copper halide particles in the glass, elongating said glass containing copper halide particles at a temperature where said glass exhibits a viscosity of from 1×108 to 1×1011 poises, and reducing at least a portion of the copper halide particles in the elongated glass to produce metallic copper particles therein. An optical isolator employing the above light polarizing glass articles is also provided.Type: GrantFiled: March 23, 1999Date of Patent: November 6, 2001Assignee: Hoya CorporationInventors: Takeshi Takahashi, Tajima Hidemi, Hiroshi Kato, Hisayoshi Toratani
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Publication number: 20010034293Abstract: An alkali-free aluminoborosilicate glass having a coefficient of thermal expansion &agr;20/300 of between 2.8×10−6/K and 3.8×10−6/K, which has the following composition (in % by weight, based on oxide): silicon dioxide (SiO2)>58−65, boric oxide (B2O3)>6−11.5, magnesium oxide (MgO) 4−8, barium oxide (BaO) 0−<0.5, zinc oxide (ZnO) 0−2 and aluminum oxide (Al2O3)>14−25, calcium oxide (CaO) 0−8, strontium oxide (SrO) 2.6−<4, with barium oxide (BaO)+strontium oxide (SrO) >3, or aluminum oxide (Al2O3)>14−25, calcium oxide (CaO) 0−<2, strontium oxide (SrO)>0.5−<4, or aluminum oxide (Al2O3)>21−25, calcium oxide (CaO) 0−8, strontium oxide (SrO)>2.6−<8, with barium oxide (BaO)−strontium oxide (SrO)>3, and which is highly suitable for use as a substrate glass both in display technology and in thin-film photovoltaics.Type: ApplicationFiled: January 11, 2001Publication date: October 25, 2001Inventors: Ulrich Peuchert, Peter Brix
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Patent number: 6268303Abstract: The present invention relates to a glass matrix which includes 4-70 wt. % SiO2, 0.5-20 wt. % Al2O3, 0-20 wt. % R2O, 0-30 wt. % R′O, 8-85 wt. % Ta2O5, 0-40 wt. % Nb2O5, and 0.01-1.0 wt. % R″2O3, where R2O+R″O is between about 2-35 wt. %, Ta2O5+Nb2O5 is between about 8-85 wt. %, R is selected from a group consisting of Li, Na, K, and combinations thereof, R′ is selected from a group consisting of Ba, Sr, Ca, Mg, Zn, Pb, and combinations thereof, and R″ is a rare earth element. The present invention also relates to use of the glass matrix in forming optic waveguides such as optic amplifiers. The present invention further relates to a transparent glass ceramic that contains pyrochlore, perovskite, or a combination thereof as its major crystal phase, and includes 4-40 wt. % SiO2, 1-15 wt. % Al2O3, 0-20 wt. % K2O, 0-12 wt. % Na2O, 0-5 wt. % Li2O, 8-85 wt. % Ta2O5, and 0-45 wt. % Nb2O5, wherein Ta2O5+Nb2O5 is at least about 20 wt.Type: GrantFiled: May 27, 1999Date of Patent: July 31, 2001Assignee: Corning IncorporatedInventors: Bruce G. Aitken, George H. Beall, Nicholas F. Borrelli, Matthew J. Dejneka
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Patent number: 6255238Abstract: The object of the present invention is brown solar glasses, absorbing UV or IR radiation, as well as solar ophthalmic lenses in said glasses. Said glasses have the following composition, expressed in percentages by weight: SiO2: 64-71; B2O3: 2-8; Al2O3: 0-4; ZrO2: 0-2; Li2O: 0-4; Na2O: 6-10; K2O: 7-16; CaO: 0-5.5; ZnO: 0-5.5; TiO2; 0-2; Fe2O3: 3-9; Co3O4: 0-0.030; NiO: 0-0.2; SeO2: 0.0030-0.1; As2O3: 0-0.1; Sb2O3: 0-0.1; SnO2: 0-0.1; Cl: 0-2; Br: 0-2; F: 0-2.Type: GrantFiled: February 7, 2000Date of Patent: July 3, 2001Assignee: Corning S.A.Inventor: Yves A. H. Brocheton
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Publication number: 20010002941Abstract: A length of oxynitride optical fiber is exposed to actinic radiation that is modulated by an interference technique to form a pattern of refractive index variations that functions as a reflective grating.Type: ApplicationFiled: December 1, 2000Publication date: June 7, 2001Inventors: Nicholas Francis Borrelli, Thomas Allen Cook, Evelyn McGee DeLiso, Robert Adam Modavis
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Patent number: 6214482Abstract: A dielectric layer for use in a magneto-optic storage medium contains a compound glass of SiO2—MO2, SiO2—M2O3, or SiO2—M2O5 and combinations thereof where M is selected from Zr, Ti, Al, Nb, Y, Sn, In, Ta and Sb.Type: GrantFiled: April 7, 1994Date of Patent: April 10, 2001Assignee: Information Business Machines CorporationInventors: Christopher Vincent Jahnes, Fletcher Jones, Joseph Skinner Logan, Michael Allen Russak
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Patent number: 6207284Abstract: Silicate based glass compositions with nitrogen compounds are included in the composition as performance modifiers to impart desirable color and improved energy absorbance properties. The nitrogen compound is, generally, a metal nitride which is added to the batch glass composition in amounts greater than 0.05 weight percent prior to melting the composition and method resulting in a finished glass suitable for use in architectural and automotive glazings.Type: GrantFiled: October 20, 1998Date of Patent: March 27, 2001Assignee: Libben-Owens-Ford Co.Inventors: Srikanth Varanasi, Paige L. Higby, Gwendolyn A. Young
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Patent number: 6197711Abstract: An ophthalmic, protective, filter lens, and a method of producing such lens, the lens having a ratio of Z and Y tristimulus values between 0.25-0.40, a dominant wavelength between 570-580 nm. on a color mixture diagram, a sharp transmission drop between 450-500 nm. and a transmission not over 30% between 400-450 nm.Type: GrantFiled: April 26, 1999Date of Patent: March 6, 2001Assignee: Corning S.A.Inventors: Thomas G. Havens, David J. Kerko, Brent M. Wedding
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Patent number: 6162749Abstract: The invention concerns photochromic glasses with improved properties having the following composition, in wt. %: SiO.sub.2 : 51-66, B.sub.2 O.sub.3 : 15-23, Al.sub.2 O.sub.3 : 3-10, ZrO.sub.2 : 2.5-11, TiO.sub.2 : 0-1, Li.sub.2 O: 3-7, Na.sub.2 O: 0-8, K.sub.2 O: 2-9, Ag: 0.080-0.30, CuO>0.0020-0.0130, Cl: 0.1-0.6, Br 0.040-0.3, MgO: 0-3, CaO: 0-3, SrO: 0-3, BaO: 0-3, Nb.sub.2 O.sub.5 : 0-1, La.sub.2 O.sub.3 : 0-8, Y.sub.2 O.sub.3 : 0-8, with 0.2<Ag/(Cl+Br).ltoreq.0.5, Br/(Cl+Br)>0.15, 0.5.ltoreq.La.sub.2 O.sub.3 +Y.sub.2 O.sub.3.ltoreq.8, TiO.sub.2 +Nb.sub.2 O.sub.5 .ltoreq.1.2, 10.ltoreq.Al.sub.2 O.sub.3 +ZrO.sub.2 .ltoreq.17, MgO+CaO+SrO+BaO.ltoreq.6. Use for the production of ophthalmic lenses.Type: GrantFiled: July 29, 1999Date of Patent: December 19, 2000Assignee: Corning S.A.Inventors: Yves Andre Henri Brocheton, Michel Prassas
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Patent number: 5958810Abstract: Optical glasses or lenses are described having a refractive index that varies as a function of at least one coordinate, which is made from a starting material with a constant refractive index by ion exchange. Greater index gradients than with the prior art are achieved by special compositions and ion exchange baths intended therefor. In addition, the stability of the glasses is increased.Type: GrantFiled: October 28, 1997Date of Patent: September 28, 1999Assignee: Optische Werke G. RodenstockInventors: Werner Mohr, Boris Goldenfang, Vladimir Il'Lin, Vladislav Lifschitz, Nikolai Remizov
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Patent number: 5932501Abstract: The invention relates to glasses which absorb UV radiation and which have the following composition, in wt. %: SiO.sub.2 30-52; ZnO 0-8; B.sub.2 O.sub.3 12-22; PbO 0-2; ZrO.sub.2 5-14; Y.sub.2 O.sub.3 0-15; Al.sub.2 O.sub.3 0-12; La.sub.2 O.sub.3 5-25; Li.sub.2 O 1.5-3.5; TiO.sub.2 0-2; Na.sub.2 O 0-6; HfO.sub.2 0-2; K.sub.2 O 2-9; Nb.sub.2 O.sub.5 0-2; MgO 0-5; Ta.sub.2 O.sub.5 0-2; CaO 0-5; MoO.sub.3 0-2; SrO 0-9; WO.sub.3 0-2; BaO 0-14; SnO 0-4; Sb.sub.2 O.sub.3 0-4; SnO.sub.2 0-4; AS.sub.2 O.sub.3 0-4; CdO 0-1; CuO 0.15-1; F 0-2; Cl 0-3; Br 0-3; I 0-2 with the following conditions: Li.sub.2 O+Na.sub.2 O+K.sub.2 O (X.sub.2 O) 7-14; MgO+CaO+SrO+BaO (XO) 12-20; ZrO.sub.2 +Al.sub.2 O.sub.3 <15; F+Cl+Br+I 0.2-4.0; TiO.sub.2 +PbO+Nb.sub.2 O.sub.5 .ltoreq.2; AS.sub.2 O.sub.3 +Sb.sub.2 O.sub.3 +SnO.sub.2 +SnO 0.05-4.0 and a ratio R=(M.sub.2 O+2MO-Al.sub.2 O.sub.3 -ZrO.sub.2)/B.sub.2 O.sub.3 where M.sub.Type: GrantFiled: February 2, 1998Date of Patent: August 3, 1999Assignee: Corning IncorporatedInventor: Yves A. H. Brocheton