And Yttrium Or Rare Earth (i.e., Elements With Atomic Numbers 39 Or 57-71) Patents (Class 501/64)
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Patent number: 7528084Abstract: The present invention provides glass compositions and glass coatings that are lead-free and cadmium-free for use on glass substrates, particularly in automotive applications. The compositions of the present invention provide for chemically durable, blacker colors that are completely suitable for use in automotive glass windows. The compositions include tantalum oxide as a required component.Type: GrantFiled: January 30, 2006Date of Patent: May 5, 2009Assignee: The Shepherd Color CompanyInventor: Hasan B. Emlemdi
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Publication number: 20090099001Abstract: Glass, glass compositions, methods of preparing the glass compositions, microfluidic devices that include the glass composition, and methods of fabricating microfluidic devices that include the glass composition are disclosed. The borosilicate glass composition includes silicon dioxide (SiO2) in a range from about 60% to 74% by total composition weight; boric oxide (B2O3) in a range from about 9% to 25% by total composition weight; aluminum oxide (Al2O3) in a range from about 7% to 17% by total composition weight; and at least one alkali oxide in a range from about 2% to 7% by total composition weight. In addition, the borosilicate glass has a coefficient of thermal expansion (CTE) that is in a range between about 30×10?7/° C. and 55×10?7/° C. Furthermore, the borosilicate glass composition resists devitrification upon sintering without the addition of an inhibitor oxide.Type: ApplicationFiled: January 18, 2008Publication date: April 16, 2009Inventor: Paulo Marques
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Patent number: 7515332Abstract: Conventional glass compositions including bismuth as a fluorescent element have a broad amplification wavelength region but do not allow the emission intensity in the 1.3-?m range to be sufficiently high through the excitation caused by light in the 0.8-?m and 0.98-?m ranges. The present invention provides a glass composition including: bismuth; a glass network former; and at least one element selected from the group consisting of dysprosium, erbium, ytterbium, neodymium, thulium, holmium, titanium, vanadium, chromium, manganese, iron, cobalt, nickel, copper, and molybdenum (except for tetravalent titanium and trivalent iron), wherein the glass composition emits fluorescence in an infrared wavelength region, with the bismuth functioning as a fluorescent source through irradiation of excitation light. The emission intensity is increased by the sensitization effect of the at least one element.Type: GrantFiled: February 17, 2005Date of Patent: April 7, 2009Assignee: Nippon Sheet Glass Company, LimitedInventor: Masahiro Tsuda
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Patent number: 7510673Abstract: For mounting on a substrate by using an electroconductive adhesive, an electroconductive paste for forming an external electrode which has improved moisture resistance and which is resistant to occurrence of external-electrode peeling, as well as a ceramic electronic component including the electroconductive paste are provided. The electroconductive paste includes a base-metal electroconductive powder, first glass frit, and an organic vehicle, wherein the first glass frit has a B2O3 content of 10 to 20 percent by mole, a SiO2 content of 50 to 65 percent by mole, an alkali metal oxide content of 10 to 20 percent by mole, a ZnO content of 1 to 5 percent by mole, a TiO2 content of 1 to 5 percent by mole, a ZrO2 content of 1 to 5 percent by mole, and an Al2O3 content of 1 to 5 percent by mole.Type: GrantFiled: November 15, 2006Date of Patent: March 31, 2009Assignee: Murata Manufacturing Co., Ltd.Inventors: Akira Ohtani, Yuji Ukuma
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Publication number: 20090075806Abstract: The invention provides an optical glass which comprises, in terms of % by mass on the basis of oxides, 35-45% of SiO2, 12-20% of B2O3, 2-7% of Li2O, 0.1-10% of ZnO, 2-15% of Al2O3, 10-40% of BaO, 0-5% of K2O, 0-10% of Na2O, and 0-20% of Gd2O3, wherein SiO2+B2O3 is 47-58% and Li2O+Na2O+K2O is 5-14%.Type: ApplicationFiled: November 19, 2008Publication date: March 19, 2009Applicant: ASAHI GLASS COMPANY, LIMITEDInventors: Kenji IMAKITA, Naoki Sugimoto
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Patent number: 7501368Abstract: A glass composition for use in a lamp bulb includes cobalt oxide to provide a blue colored glass. The composition has an alkali metal oxide including lithium oxide. Such composition has a glass transition temperature Tg below 700° C.; e.g., below 500° C. The glass composition is used for forming, during operation, a blue light-emitting bulb for an automotive lamp.Type: GrantFiled: April 26, 2005Date of Patent: March 10, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: Simon Flink, Hubertina Maria Petra Ulenaers, Maarten Walter Steinmann
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Patent number: 7501369Abstract: An optical glass having high-refractivity and low-dispersion optical properties and having a low glass transition point so that a heat-treating furnace can be operated for a long period of time. The optical glass has a refractive index nd of at least 1.875, an Abbe's number ?d of at least 39.5 and a glass transition point Tg of 700° C. or lower, and contains at least one of La2O3, Gd2O3, Y2O3 or Yb2O3 and at least one of ZrO2, Ta2O5 or Nb2O5, with a weight ratio of the total content of La2O3, Gd2O3, Y2O3 and Yb2O3 to the total content of SiO2 and B2O3 of from 3.2 to 5 and the weight ratio of the total content of ZrO2, Ta2O5 and Nb2O5 to the total content of SiO2 and B2O3 is from 1.1 to 1.5.Type: GrantFiled: July 16, 2007Date of Patent: March 10, 2009Assignee: Hoya CorporationInventor: Kazuo Tachiwana
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Publication number: 20090062102Abstract: The invention is directed to photomachinable glass compositions having a controllable or tunable photosensitivity, and to a method for making such compositions. The compositions of the invention contain titania (TiO2) in an amount in the range of greater than 0.01 wt. % to 2 wt. % added to any known photomachinable glass composition. In one embodiment the TiO2 in an amount in the range of greater than 0.01 wt. % to 1 wt. %. An example of a photomachinable glass of the invention is one having a composition having, in weight percent (wt. %) of 65-80% SiO2, 15-20% Li2O, 1-4% Na2O, 1-4% K2O, 2-10% Al2O3, 0-3% ZnO, 0-0.15% Sb2O3, 0-0.015% CeO2, 0-0.001% Au, 0-0.015% Ag and >0.01% to 2% TiO2, and the sum of Au+Ag is greater than zero. In particular embodiment the TiO2 is in the range of >0.01% to 1%.Type: ApplicationFiled: August 31, 2007Publication date: March 5, 2009Inventors: Nicholas Francis Borrelli, Kathryn L. Goetschius, Charlene Marie Smith
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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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Publication number: 20090039758Abstract: An adhesive agent for fluorescent dyes for adhering a fluorescent layer on a substrate, wherein the adhesive agent contains or consists of a glass composition.Type: ApplicationFiled: April 10, 2008Publication date: February 12, 2009Applicant: SCHOTT AGInventors: Jorg Hinrich Fechner, Franz Ott
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Publication number: 20090042712Abstract: The invention relates to a glass composition of silica-soda-lime type colored blue which comprises the coloring agents below in a content varying within the following limits, by weight: Fe2O3 (total iron) 0.2 to 0.51% CoO 10 to 50 ppm Cr2O3 10 to 300 ppm CuO 0-400 ppm the glass exhibiting a redox factor of less than 0.35, a dominant wavelength ?D of between 485 and 489 nm, an excitation purity of less than 13% and a selectivity at least equal to 1.1 under a thickness of between 3 and 5 mm. It also relates to the glass sheet obtained from the abovementioned composition, said sheet being intended in particular to form an automobile window or for the construction industry.Type: ApplicationFiled: October 10, 2008Publication date: February 12, 2009Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Laurent TEYSSEDRE, Dominique SACHOT, Pierre JEANVOINE
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Publication number: 20090042711Abstract: [Object] To provide a high-refractivity high-dispersion optical glass having excellent stability [Solution Means] An optical glass which is formed of an oxide glass containing 30 to 70 cationic % of Bi3+ and has a liquidus temperature of 800° C. or lower.Type: ApplicationFiled: August 5, 2008Publication date: February 12, 2009Applicant: HOYA CORPORATIONInventors: Xuelu Zou, Yasuhiro Fujiwara, Yoshio Nojima
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Publication number: 20090036290Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs). The glass compositions possess numerous properties that are compatible with the downdraw process, particularly fusion drawing.Type: ApplicationFiled: July 31, 2007Publication date: February 5, 2009Inventors: Lauren Kay Cornelius, Adam James Ellison, Shari Elizabeth Koval
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Patent number: 7482295Abstract: A high transmittance fairly clear/neutral colored glass composition is provided. An oxidizing agent(s) such as cerium oxide (e.g., CeO2) or the like is added to the glass batch in order to realize very oxidized conditions (i.e., to significantly lower the redox of the resulting glass). As a result of the oxidizing agent(s) used in the batch, the iron is oxidized to a very low FeO (ferrous state) content. For example, this may result in a glass having a glass redox value of no greater than 0.12 (more preferably <=0.10; even more preferably <=0.08; and most preferably <=0.05) and a % FeO (i.e., ferrous content) of from 0.0001 to 0.05%. In certain example embodiments, in order to compensate for yellow or yellow-green coloration a small amount of cobalt (Co) may be provided in the glass to enable it to realize a more neutral color.Type: GrantFiled: September 29, 2006Date of Patent: January 27, 2009Assignee: Guardian Industries Corp.Inventors: Ksenia A. Landa, Leonid Landa, Richard Hulme, Scott V. Thomsen
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Patent number: 7482294Abstract: A high transmittance fairly clear/neutral colored glass composition is provided. An oxidizing agent(s) such as cerium oxide (e.g., CeO2) or the like is added to the glass batch in order to realize very oxidized conditions (i.e., to significantly lower the redox of the resulting glass). As a result of the oxidizing agent(s) used in the batch, the iron is oxidized to a very low FeO (ferrous state) content. For example, this may result in a glass having a glass redox value of no greater than 0.12 (more preferably <=0.10; even more preferably <=0.08; and most preferably <=0.05) and a % FeO (i.e., ferrous content) of from 0.0001 to 0.05%. In certain example embodiments, in order to compensate for yellow or yellow-green coloration a small amount of cobalt (Co) may be provided-in the glass to enable it to realize a more neutral color.Type: GrantFiled: August 31, 2006Date of Patent: January 27, 2009Assignee: Guardian Industries Corp.Inventors: Ksenia A. Landa, Leonid Landa, Richard Hulme, Scott V. Thomsen
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Publication number: 20090018007Abstract: A lithium-aluminosilicate glass or a corresponding glass ceramic that has a content of 0-0.4 SnO2, 1.3-2.7% by weight of ?SnO2+TiO2, 1.3-2.5% by weight of ZrO2, 3.65-4.3% by weight of ?ZrO2+0.87 (TiO2+SnO2), ?0.04% by weight of Fe2O3, 50-4000 ppm of Nd2O3 and 0-50 ppm of CoO is described. The glass or the glass ceramic is color-neutral, has a turbidity of less than 1% HAZE and a high light transmission. The glazing time for conversion of the glass into glass ceramic is especially short with less than 2.5 hours.Type: ApplicationFiled: March 19, 2007Publication date: January 15, 2009Inventors: Friedrich Siebers, Ulrich Schiffner, Wolfgang Schmidbauer, Klaus Schonberger
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Publication number: 20090011916Abstract: Pressable glass-ceramic compositions for dental purposes of the composition I, II or III I II III ZrO2 17-70%? ZrO2/Al2O3 15-70%? Al2O3 ??15-70% SiO2 17-59%? SiO2 17-59%? SiO2 ??17-59% Al2O3 ?2-15% ZrO2 ?2-15% ZrO2 ???2-15% Y2O3 ??0-6% Y2O3 ??0-6% Y2O3 ???0-6% K2O 3-12.5%? K2O 3-12.5%? K2O ?3-12.5% Na2O 0.2-8.5%?? Na2O 0.2-8.5%?? Na2O 0.2-8.5% Li2O 0-1.5% Li2O 0-1.5% Li2O ???0-1.5% CaO 0.3-2% CaO 0.3-2% CaO ???0.3-2% B2O3 0.1-5% B2O3 0.1-5% B2O3 ???0.1-5% F 0-2.5% F 0-2.5% F ???0-2.5% CeO2 0.2-2% CeO2 0.2-2% CeO2 ???0.2-2% TiO2 0-1.5% TiO2 0-1.5% TiO2 ???0-1.5% are particularly suitable for the manufacturing of ceramic veneer frames.Type: ApplicationFiled: September 16, 2008Publication date: January 8, 2009Applicant: HERAEUS KULZER GMBHInventor: Jurgen STEIDL
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Patent number: 7468336Abstract: A high temperature resistant vitreous inorganic fiber having a use temperature of up to at least 1000° C., or greater, having after service mechanical integrity, is non-durable (soluble) in physiological fluids, and is produced from a melt containing silica, magnesia, calcia, a lanthanide series element-containing compound, and optionally zirconia.Type: GrantFiled: June 25, 2004Date of Patent: December 23, 2008Assignee: Unifrax LLCInventors: Bruce K. Zoitos, Michael J. Andrejcak, Paul M. Boymel
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Patent number: 7468337Abstract: A temperature resistant vitreous inorganic fiber having a use temperature of up to at least 1000° C., or greater, having after service mechanical integrity, is non-durable (soluble) in physiological fluids, and is produced from a melt containing silica, magnesia, a lanthanide series element-containing compound, and optionally zirconia.Type: GrantFiled: June 25, 2004Date of Patent: December 23, 2008Assignee: Unifrax I LLCInventors: Bruce K. Zoitos, Michael J. Andrejcak, Paul M. Boymel
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Publication number: 20080312063Abstract: The present invention provides an optical glass including, by mass %: 46 to 70 of B2O3; 3 to 10 of Li2O; 5 to 15 of Y2O3; 0 to 46 of SiO2: 0 to 20 of Al2O3: 0 to 40 of MgO+CaO+SrO+BaO; 0 to 30 of La2O3; and 0 to 10 of ZrO2+TiO2+Gd2O3.Type: ApplicationFiled: August 21, 2008Publication date: December 18, 2008Applicant: ASAHI GLASS CO., LTD.Inventors: Hiroyuki OHKAWA, Jun Sasai, Naoki Sugimoto
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Publication number: 20080300125Abstract: The present invention refers to optical glasses designated to be used in the areas of imaging, sensors, microscopy, medical technology, digital projection, photolithography, laser technology, wafer/chip technology as well as telecommunications, optical communications engineering and optics/illumination in the automotive sector with a refractive index nd of 1.60?nd?1.72 and/or an Abbe number vd of 32?vd?45 with pronounced short flint character, good chemical resistance, excellent resistance to crystallization, good solarization stability and the following composition (in % by weight based on oxides): SiO2 30-45 B2O3 ?8-12 Na2O ?8-15 CaO 0.Type: ApplicationFiled: May 29, 2008Publication date: December 4, 2008Inventors: Silke Wolff, Ute Woelfel, Gordon Kissl
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Patent number: 7450813Abstract: Various embodiments described herein include rare earth doped glass compositions that may be used in optical fiber and rods having large core sizes. Such optical fibers and rods may be employed in fiber lasers and amplifiers. The index of refraction of the glass may be substantially uniform and may be close to that of silica in some embodiments. Possible advantages to such features include reduction of formation of additional waveguides within the core, which becomes increasingly a problem with larger core sizes.Type: GrantFiled: March 29, 2007Date of Patent: November 11, 2008Assignee: IMRA America, Inc.Inventors: Liang Dong, Xiang Peng
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Patent number: 7449419Abstract: Embodiments of the present invention relate generally to fiberizable glass compositions comprising boron oxide at least one rare earth oxide in a molar ratio of rare earth oxide to boron oxide ranging from 0.01 to 0.33. Other embodiments of the present invention relate to methods of inhibiting boron volatization from glass compositions comprising boron oxide by adding a rare earth oxide to the glass composition before melting the glass compositions. Still other embodiments of the present invention relate to glass fibers formed from the fiberizable glass compositions of the present invention, and polymeric composites and printed circuit boards made therefrom.Type: GrantFiled: August 20, 2004Date of Patent: November 11, 2008Assignee: PPG Industries Ohio, Inc.Inventor: Hong Li
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Publication number: 20080268295Abstract: Glass-ceramics include SiO2, Al2O3 and Li2O on oxide basis. In the glass-ceramics, total amount in mass % of SiO2 and Al2O3 is less than 77% and Li2O/(SiO2+Al2O3) which is the ratio in mass % of the amount of Li2O to the total amount of SiO2 and Al2O3 is 0.064 or over. The glass-ceramics include at least one crystal phase selected from the group consisting of ?-quartz, ?-quartz solid solution, ?-eucryptite, ?-eucryptite solid solution, ?-spodumene and ?-spodumene solid solution.Type: ApplicationFiled: April 23, 2008Publication date: October 30, 2008Applicant: OHARA INC.Inventor: Toshitaka YAGI
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Publication number: 20080269038Abstract: The colorless transparent colloid-former-containing glass that is convertible into a colorless transparent glass ceramic or a metal colloid-colored glass ceramic via respective heat treatments contains a combination of one or more metal colloid formers and one or more redox partners. The metal colloid formers are compounds containing Au, Ag, As, Bi, Nb, Cu, Fe, Pd, Pt, Sb and/or Sn. The redox partners are compounds containing As, Ce, Fe, Mn, Sb, Sn and/or W, with the proviso that the redox partner must be different from the metal colloid former.Type: ApplicationFiled: April 23, 2008Publication date: October 30, 2008Inventors: Meike SCHNEIDER, Thilo ZACHAU, Friedrich SIEBERS, Wolfgang SCHMIDBAUER
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Patent number: 7439676Abstract: A cold cathode fluorescent lamp (1) has feedthrough pins (5) made from molybdenum or a molybdenum alloy that form a glass-metal seal (6) with a glass composed of 55-75 wt. % SiO2, 13-25 wt. % B2O3, 0-10 wt. % Al2O3, 5-12 wt. % alkali oxides, 0-3 wt. % alkali earth oxides, 0-5 wt. % ZrO2, 0-10 wt. % TiO2 und 0-5 wt. % remaining oxides. The lamp has hollow cathodes (4) made from a material of the group molybdenum, molybdenum alloys, niobium, niobium alloys, and the lamp is manufactured in a compact form using conventional manufacturing parameters, and the resulting lamp has crack free, long-term vacuum-tight glass-metal seals.Type: GrantFiled: May 27, 2004Date of Patent: October 21, 2008Assignees: Plansee SE, Schott AGInventors: Herman Walser, Wolfram Knabl, Gerhard Leichtfried, Jörg Hinrich Fechner, Franz Ott, Ralf Diezel, Brigitte Hueber
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Publication number: 20080254965Abstract: Glass has optical constants of a refractive index (nd) of 1.79 or over and an Abbe number (?d) of 27 or over and a specific gravity (D) of 3.20 or over and is free from devitrification in the interior of the glass in a reheat test. The glass has chemical durability according to the Powder Method (acid-proof property RA according to the Powder Method) which is Class 1.Type: ApplicationFiled: January 12, 2006Publication date: October 16, 2008Applicant: KABUSHIKI KAISHA OHARAInventor: Junko Ishioka
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Publication number: 20080254301Abstract: The PbO-free UV-absorbing glass is made under oxidative conditions and has a composition, in % by weight, of: SiO2, 55-79; B2O3, 3-25; Al2O3, 0-10; Li2O, 0-10; Na2O, 0-10; K2O, 0-10; MgO, 0-2; CaO, 0-3; SrO, 0-3; BaO, 0-3; ZnO, 0-3; ZrO2, 0-3; CeO2, 0-1; Fe2O3, 0-1; WO3, 0-3; Bi2O3, 0-3; MoO3, 0-3; ?LiO+Na2O+K2O=0.5 to 16 and ?MgO+CaO+SrO+BaO+ZnO=0-10. It also contains from 0.1 to 10% TiO2 with at least 95% of the titanium as Ti+4 so that it has a high visible transmission, reduced color centers, and a sharp UV absorption edge. It is especially useful in lamps display devices and glass-to-metal seals.Type: ApplicationFiled: April 8, 2008Publication date: October 16, 2008Inventors: Joerg Fechner, Andreas Reisse, Franz Ott, Brigitte Hueber
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Publication number: 20080255265Abstract: The present invention relates to a glass filler material with an average particle size of 0.1-20 ?m. It further relates to a method for producing a glass filler material. The glass filler material comprises 65-99.95 mol % silicon dioxide (SiO2), 0-15 mol % aluminum and/or boron oxide (Al2O3, B2O3), 0-30 mol % zirconium and/or titanium and/or hafnium oxide (ZrO2, TIO2, HfO2), Y2O3 and/or Sc2O3 and/or La2O3 and/or CeO2 and/or other lanthanide oxides, 0.05-4 mol % alkali metal oxides (Na2O, Li2O, K2O, Rb2O, Cs2O), 0-25 mol % earth alkali metal oxides (MgO, CaO, SrO, BaO). The glass filler material shows a low concentration of alkali ions and is used for composites with cationically curing properties and for dental composites and dental restoration materials.Type: ApplicationFiled: December 22, 2004Publication date: October 16, 2008Inventors: Stefan Hoescheler, Dirk Albrecht, Andrea Stippschild, Karsten Dede
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Patent number: 7435696Abstract: The invention is a glass composition with high visible light transmission and low ultraviolet light transmission, comprising, in weight percentage, less than 0.03 wt % of ferric oxide, from 0.05 to 1 wt % of titanium oxide and from 0 to 0.6 of cerium oxide, the glass having greater than 87% in visible luminous transmittance; a UV light transmission less than 60% and more preferably less than 50%; and, a solar direct transmittance no more than 90%.Type: GrantFiled: July 15, 2005Date of Patent: October 14, 2008Assignee: Vidrio Plano De Mexico, S.A. DE C.V.Inventors: Herbert Scheffler-Hudlet, José Guadalupe Cid-Aguilar, Rafael Enrique Pinto-Negroe
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Publication number: 20080248250Abstract: This invention provides an inexpensive and rapid method for fabricating a high-anisotropic-etch ratio, shaped glass structures using a novel photosensitive glass composition. Structures of the photosensitive glass may include micro-channels, micro-optics, microposts, or arrays of hollow micro-needles. Furthermore, such shaped glass structures can be used to form a negative mold for casting the shape in other materials.Type: ApplicationFiled: March 28, 2008Publication date: October 9, 2008Applicant: LIFE BIOSCIENCE, INC.Inventors: Jeb H. Flemming, Colin T. Buckley, Carrie Schmidt
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Publication number: 20080231972Abstract: An on-vehicle camera lens glass material satisfies at least one of conditions in which a measurement result in water resistance based on a powder method prescribed by Japanese Optical Glass Industrial Standard is 1st Class, a measurement result in Knoop hardness based on a measurement method prescribed by Japanese Optical Glass Industrial Standard is 6th Class or higher, a measurement result in solarization based on a measurement method prescribed by Japanese Optical Glass Industrial Standard is 2% or less, and a measurement result in average linear expansion coefficient based on a measurement method prescribed by Japanese Optical Glass Industrial Standard is 100×10?7° C.?1 or less.Type: ApplicationFiled: March 19, 2008Publication date: September 25, 2008Applicant: HOYA CORPORATIONInventors: Yoichi HACHITANI, Kazuo TACHIWANA
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Publication number: 20080213495Abstract: The present invention provides a mother glass composition for gradient-index lens, from which a lead-free Li-based gradient-index lens that is excellent in weather resistance, in particular weather resistance in the presence of water, can be manufactured. The mother glass composition includes the following components, indicated by mol %: 40?SiO2?65; 1?TiO2?10; 0.1?MgO?22; 0.15?ZnO?15; 2?Li2O?18; 2?Na2O?20; 0?B2O3?20; 0?Al2O3?10; 0?K2O?3; 0?Cs2?O?3; 0?Y2O3?5; 0?ZrO2?2; 0?Nb2O5?5; 0?In2O3?5; 0?La2O3?5; and 0?Ta2O5?5. The mother glass composition further includes at least two oxides selected from CaO, SrO, and BaO each in a range of 0.1 mol % to 15 mol %. The total of MgO+ZnO is greater than or equal to 2 mol %. The molar ratio of ZnO/(MgO+ZnO) is in a range of 0.07 to 0.93. The total of Li2O+Na2O is in a range of 6 mol % to 38 mol %. The total of Y2O3+ZrO2+Nb2O5+In2O3+La2O3+Ta2O5 is in a range of 0 mol % to 11 mol %.Type: ApplicationFiled: February 15, 2008Publication date: September 4, 2008Applicant: Nippon Sheet Glass Company, LimitedInventors: Taro Miyauchi, Tatsufumi Shiba
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Publication number: 20080207424Abstract: Bi-containing glass-ceramic material, especially those containing ?-quartz and/or ?-spodumene solid solutions as the predominant crystalline phase, and the precursor glass material as well as process of making such glass-ceramic material and articles. The glass-ceramic can be made to have a dark color, and essentially to be free of V2O5, As2O3 and Sb2O3.Type: ApplicationFiled: February 28, 2007Publication date: August 28, 2008Inventors: Bruce Gardiner Aitken, Lothar Wondraczek
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Patent number: 7414000Abstract: A method for reducing the defect density of glass comprising melting a glass composition comprising from 65-75 wt. % of SiO2; from 10-20 wt. % of Na2O; from 5-15 wt. % of CaO; from 0-5 wt. % of MgO; from 0-5 wt. % of Al2O3; from 0-5 wt. % of K2O; from 0-2 wt. % Fe2O3; and from 0-2% FeO, wherein the glass composition has a total field strength index of greater than or equal to 1.23 is disclosed.Type: GrantFiled: October 20, 2006Date of Patent: August 19, 2008Assignee: PPG Industries Ohio, Inc.Inventors: Charlene S. Smith, George A. Pecoraro
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Patent number: 7396788Abstract: A glass substrate for use as the substrate of an information recording medium such as a magnetic disk, magneto-optical disk, DVD, or MD or of an optical communication device, and a glass composition for making such a glass substrate, contains the following glass ingredients: 45 to 75% by weight of SiO2; 1 to 20% by weight of Al2O3; 0 to 15% by weight, zero inclusive, of B2O3; SiO2+Al2O3+B2O3 accounting for 65 to 90% by weight; a total of 7 to 20% by weight of R2O compounds, where R=Li, Na, and K; and a total of 0 to 12% by weight, zero inclusive, of R?O compounds, where R?=Mg, Ca, Sr, Ba, and Zn. Moreover, the following conditions are fulfilled: B2O3=0% by weight, or Al2O3/B2O3?1.0; and (SiO2+Al2O3+B2O3)/(the total of R2O compounds+the total of R2O compounds)?3.Type: GrantFiled: June 13, 2003Date of Patent: July 8, 2008Assignee: Minolta Co., Ltd.Inventors: Hideki Kawai, Toshiharu Mori
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Patent number: 7390761Abstract: The invention relates to an alkaline-earth aluminosilicate glass with the following composition (in wt. %, based on oxide content): SiO2 >58-62; B2O3 0 5.5; Al2O3 13.5 17.5; MgO 0-7; CaO 5.5-14; SrO 0-8, BaO 6-14; ZrO2 0-2; CeO2 0.001 0.5; TiO2 0.01-2. The glass is particularly suitable for use as a bulb material for halogen light bulbs.Type: GrantFiled: January 29, 2003Date of Patent: June 24, 2008Assignee: Schott AGInventors: Joery Hinrich Fechner, Peter Brix, Franz Ott
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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: 20080131628Abstract: The invention relates to the field of displays. One subject of the invention is a glass composition intended for the production of a substrate for a field-emission display, which has an overall light transmission factor under illuminant D65 (TLD65) that varies from 45 to 80% and is preferably equal to 72% or less, measured for a glass thickness of 2.8 mm, and a blue-gray coloration defined by the following chromatic coordinates: a*=?4 to +1, preferably ?2 to 0; and b*=?6 to +3, preferably ?2 to 0. The substrates obtained advantageously have a reflection brightness (R) of less than 10 Cd/m2.Type: ApplicationFiled: September 30, 2005Publication date: June 5, 2008Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Sylvie Abensour, Pedro-Pablo Mazon Ramos, Nathalie El Khiati
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Publication number: 20080090718Abstract: Glass is provided so as to have high visible transmission and/or fairly clear or neutral color. In certain example embodiments, the glass includes a low amount of iron coupled with erbium (Er, including an oxide thereof) designed to provide a neutral color and high transmittance. In certain example embodiments, the amount of SO3 in the glass composition is increased in order to provide increased visible transmission, without sacrificing neutral color. The glass may optionally include a small amount of cobalt (Co, including an oxide thereof) in certain example instances.Type: ApplicationFiled: October 17, 2006Publication date: April 17, 2008Inventors: Ksenia A. Landa, Leonid M. Landa, Scott V. Thomsen, Richard Hulme
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Patent number: 7358462Abstract: A method and apparatus for heating semiconductor wafers in thermal processing chambers is disclosed. The apparatus includes a non-contact temperature measurement system that utilizes radiation sensing devices, such as pyrometers, to determine the temperature of the wafer during processing. The radiation sensing devices determine the temperature of the wafer by monitoring the amount of radiation being emitted by the wafer at a particular wavelength. In accordance with the present invention, a spectral filter is included in the apparatus for filtering light being emitted by lamps used to heat the wafer at the wavelength at which the radiation sensing devices operate. The spectral filter includes a light absorbing agent such as a rare earth element, an oxide of a rare earth element, a light absorbing dye, a metal, or a semiconductor material.Type: GrantFiled: August 1, 2006Date of Patent: April 15, 2008Assignee: Mattson Technology, Inc.Inventor: Paul Janis Timans
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Publication number: 20080081103Abstract: The invention relates to a glass for dental applications which can be used as a glazing material of dental restorations and resists high temperatures, and thus does not tend to flow.Type: ApplicationFiled: May 10, 2007Publication date: April 3, 2008Applicant: Ivoclar Vivadent AGInventors: Diana Tauch, Harald Burke, Volker M. Rheinberger
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Patent number: 7351675Abstract: An optical glass taking account of meltability and the moldability of a preform, having optical constants including a refractive index (nd) of at least 1.57 but less than 1.67 and an Abbe's number (?d) of over 55 but not more than 65, having the property of softening at a low temperature and being suitable as a glass for precision press-molding, the optical glass including an optical glass containing B2O3, SiO2, La2O3, Gd2O3, an alkali metal oxide and an alkaline earth metal oxide as essential components, having a B2O3 and SiO2 total content of 52% by weight or more and having an SiO2/B2O3 content ratio of from 0.38 to 1.2, and an optical glass wherein the relationship of the refractive index (nd) and the Abbe's number (?d) satisfies the equation (1), ?d>260?126×nd.Type: GrantFiled: January 21, 2005Date of Patent: April 1, 2008Assignee: Hoya CorporationInventors: Yoshiko Kasuga, Xuelu Zou
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Patent number: 7352131Abstract: The electric lamp has a glass component with a composition which, according to the invention, is substantially free of PbO and has the following constituents: 55–70 wt. % SiO2, <0.1 weight % Al2O3, 0.5–4 weight % Li2O, 0.5–3 weight % Na2O, 10–15 wt. % K2O, 0–3 wt. % MgO, 0–4 wt. % CaO, 0.5–5 wt. % SrO, 7–10 wt. % BaO. Preferably, the composition of the glass comprises: 65–70 wt. % SiO2, 1.4–2.2 wt. % Li2O, 1.5–2.5 wt. % Na2O, 11–12.3 wt. % K2O, 1.8–2.6 wt. % MgO, 2.5–5 wt. % CaO, 2–3.5 wt. % SrO, 8–9.5 wt. % BaO. The glass is preferably used as a CFL-envelope glass or as glass for a stem. The electric lamp made with a glass according to the invention has favorable fusion and processing properties, in particular a liquidus temperature Tliq?800° C.Type: GrantFiled: June 18, 2003Date of Patent: April 1, 2008Assignee: Koninklijke Philips Electronics N.V.Inventors: Roland Blasig, Simon Krijnen
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Patent number: 7341966Abstract: Glass, glass compositions, methods of preparing the glass compositions, microfluidic devices that include the glass composition, and methods of fabricating microfluidic devices that include the glass composition are disclosed. The borosilicate glass composition includes silicon dioxide (SiO2) in a range from about 60% to 74% by total composition weight; boric oxide (B2O3) in a range from about 9% to 25% by total composition weight; aluminum oxide (Al2O3) in a range from about 7% to 17% by total composition weight; and at least one alkali oxide in a range from about 2% to 7% by total composition weight. In addition, the borosilicate glass has a coefficient of thermal expansion (CTE) that is in a range between about 30×10?7/° C. and 55×10?7/° C. Furthermore, the borosilicate glass composition resists devitrification upon sintering without the addition of an inhibitor oxide.Type: GrantFiled: December 2, 2003Date of Patent: March 11, 2008Assignee: Corning IncorporatedInventor: Paulo Marques
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Patent number: 7341965Abstract: The invention relates to bismuth oxide glass, containing germanium oxide, a method for the production thereof, the use thereof and a glass fiber consisting of said inventive glass.Type: GrantFiled: September 7, 2002Date of Patent: March 11, 2008Assignee: Schott AGInventors: Bianca Schreder, Ruediger Sprengard, Ulrich Peuchert, Martin Letz, Joseph S. Hayden, Sally Pucilowski
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Publication number: 20080053151Abstract: A mixed quartz powder contains quartz powder and two or more types of doping element in an amount of from 0.1 to 20 mass %. The aforementioned doped elements include a first dope element selected from the group consisting of N, C and F, and a second dope element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, the lanthanides and the actinides. The “quartz powder” is a powder of crystalline quartz or it is a powder of glassy SiO2 particles. It is made form natural occurring quartz or it is fabricated synthetically. The “quartz powder” may be doped. The compounding ratio of the total amount (M1) of the aforementioned first elements and the total amount (M2) of the aforementioned second elements as the ratio of the number of atoms (M1)/(M2) is preferably from 0.1 to 20. Al as well as the aforementioned doped elements is preferably included in a mixed quartz powder of this invention.Type: ApplicationFiled: August 30, 2007Publication date: March 6, 2008Applicants: Heraeus Quarzglas GmbH & Co. KG, Shin-Etsu Quartz Products Co. Ltd.Inventor: Tatsuhiro Sato
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Publication number: 20080035887Abstract: A wavelength-converting member with high emission intensity and that is superior in weather resistance and reliability is obtained. There is provided a phosphor on which a cleaning treatment and/or a coating treatment are/is performed is contained in a glass material having a composition of SiO2: 30 to 50%, Li2O: 0 to 15%, Na2O: 0 to 10%, K2O 0 to 10%, Li2O+Na2O+K2O: 20 to 30%, B2O3:5 to 15%. MgO: 0 to 10%, BaO: 0 to 10% , CaO: 0 to 10%, SrO: 0 to 10%, Al2O3: 0 to 10%, ZnO: 0 to 15%, TiO2: 10 to 20%, Nb2O5: 1 to 5%, La2O3: 0 to 5%, and TiO2+Nb2O5+La2O3: 11 to 20% by mole percentage.Type: ApplicationFiled: August 2, 2007Publication date: February 14, 2008Inventors: Masaru Iwao, Yoshio Umayahara
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Patent number: 7326665Abstract: A light blue flat glass which is soda-lime-silica glass and which contains Nd in such an amount that the content based on Nd2O3 represented by mass percentage, is from 0.001 to 0.1%, and no Co or Co in such an amount that the content based on CoO as represented by mass percentage, is less than 0.1 ppm.Type: GrantFiled: September 3, 2003Date of Patent: February 5, 2008Assignee: Asahi Glass Company, LimitedInventors: Shuichi Akada, Masato Ooe
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Publication number: 20080026211Abstract: The present invention provides a near-infrared absorbent green glass composition which contains basic glass components and 0.6 to 1.3% total iron oxide amount in terms of Fe2O3 (T-Fe2O3), 0 to 2.0% CeO2 and, 300 ppm or less MnO expressed in units of mass and wherein a mass ratio (FeO ratio) of FeO converted into Fe2O3 relative to the T-Fe2O3 is from 0.21 to 0.35. Further the glass composition satisfies at least one of the following a) and b): a) when the glass composition is formed to have a thickness in the range of 1.3 to 2.Type: ApplicationFiled: December 24, 2004Publication date: January 31, 2008Applicant: Nippon Sheet Glass Company, LimitedInventors: Yukihito Nagashima, Hiromitsu Seto, Harunori Murakami, Hiroyuki Tanaka