And Aluminum Patents (Class 501/66)
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Patent number: 6635592Abstract: A tungsten sealing glass for use in a fluorescent lamp has a composition of, by mass percent, 65-76% SiO2, 10-25% B2O3, 2-6% Al2O3, 0.5-5.8% MgO+CaO+SrO+BaO+ZnO, 3-8% Li2O+Na2O+K2O, 0.01-4% Fe2O3+CeO2, 0-10% TiO2+Sb2O3+PbO, and 0-2% ZrO2, where Na2O/(Na2O+K2O)≦0.6.Type: GrantFiled: July 27, 2001Date of Patent: October 21, 2003Assignee: Nippon Electric Glass Co., Ltd.Inventors: Hiroyuki Kosokabe, Koichi Hashimoto
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Patent number: 6632759Abstract: The present invention relates generally to UV (ultraviolet) photosensitive bulk glass, and particularly to batch meltable alkali boro-alumino-silicate glasses. The photosensitive bulk glass of the invention exhibits photosensitivity to UV wavelengths below 250 nm. The photosensitivity of the alkali boro-alumino-silicate bulk glass to UV wavelengths below 250 nm provide for the making of refractive index patterns in the glass. With a radiation source below 250 nm, such as a laser, refractive index patterns are formed in the glass. The inventive photosensitive optical refractive index pattern forming bulk glass allows for the formation of patterns in glass and devices which utilize such patterned glass.Type: GrantFiled: June 5, 2001Date of Patent: October 14, 2003Assignee: Corning IncorporatedInventors: Nicholas F. Borelli, George B. Hares, Charlene M. Smith
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Publication number: 20030181308Abstract: A phosphor layer 12 is composed of tri-band phosphor particles 12a bound together by a binder 12a. A material as the main component of the binder 12b is a mixture of (1) a compound formed by calcium oxide, barium oxide, and boron oxide, and (2) calcium pyrophosphate. Dissolved in the main component material of the binder 12a is a luminescent component that converts ultraviolet radiation of 254 nm to ultraviolet radiation of longer wavelengths or to visible light. Examples of such a luminescent component include an oxide of gadolinium (Gd), terbium (Tb), europium (Eu), neodymium (Nd), or dysprosium (Dy), each of which belongs to lanthanum series, and an oxide of thallium (Tl), tin (Sn), lead (Pb), or bismuth (Bi), each of which belongs to 3B, 4B, or 5B group.Type: ApplicationFiled: March 13, 2003Publication date: September 25, 2003Inventors: Tomoko Atagi, Masanobu Ito
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Publication number: 20030181309Abstract: 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: ApplicationFiled: February 3, 2003Publication date: September 25, 2003Applicant: SCHOTT GLASInventors: Christian Kunert, Karin Naumann, Franz Ott, Ottmar Becker
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Patent number: 6610621Abstract: When ceramic electronic parts such as multilayer ceramic substrates that have a substrate body and metal wiring conductors comprising silver are manufactured, a composition comprising not only a borosilicate glass powder and a ceramic powder, but also an additive powder comprising at least one of cerium oxide, bismuth, bismuth oxide, antimony and antimony oxide is used as a composition for preparing the substrate body. Gray discoloration of the substrate body and yellow discoloration in the vicinities of the metal wiring conductors can be prevented.Type: GrantFiled: November 28, 2001Date of Patent: August 26, 2003Assignee: Murata Manufacturing Co., Ltd.Inventor: Kenji Masuko
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Publication number: 20030144125Abstract: An optical waveguide element that can stably and inexpensively form an optical waveguide of low loss and low stress in a glass material by ion exchange of Ag ions, and to provide a process for producing the same are provided. The invention provides an optical waveguide element comprising a multicomponent glass material, which is Na2O-B2O3-Al2O3-SiO2 glass containing from 5 to 13% by mole of Na2O, in which an optical waveguide is formed by doping with Ag ions by ion exchange. The composition is preferably SiO2: 60 to 75% by mole, B2O3: 10 to 20% by mole, Al2O3: 2 to 10% by mole, Na2O: 5 to 13% by mole, Li2O: O to 1% by mole, As2O3: O to 0.5% by mole, and Sb2O3: O to 0.5% by mole (provided that As2O3 +Sb2O3: 0.01 to 1% mole).Type: ApplicationFiled: November 20, 2002Publication date: July 31, 2003Inventors: Yasuhiro Anma, Tomoyuki Hayashi, Junko Ishizu, Tatsushi Kunou
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Patent number: 6589896Abstract: A lead- and arsenic-free borosilicate glass having an improved melting characteristic is described. The melting rate of the glass was improved dramatically by making the composition substantially free of MgO and CaO and adding 1.0 to 4.0 weight percent BaO. The improved melting characteristic yielded up to a ninety-nine percent reduction in the number of unmelted batch stones.Type: GrantFiled: June 6, 2002Date of Patent: July 8, 2003Assignee: Osram Sylvania Inc.Inventor: Richard C. Marlor
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Publication number: 20030109370Abstract: Disclosed are a glass substrate for an information recording medium, having excellent scratch resistance and a light weight and having high fracture toughness, the glass substrate having a fragility index value, measured in water, of 12 &mgr;m−½ or less or having a fragility index value, measured in an atmosphere having a dew point of −5° C. or lower, of 7 &mgr;m−½ or less, or the glass substrate comprising, by mol %, 40 to 75% of SiO2, 2 to 45% of B2O3 and/or Al2O3 and 0 to 40% of R′2O in which R′ is at least one member selected from the group consisting of Li, Na and K), wherein the total content of SiO2, B2O3, Al2O3 and R′2O is at least 90 mol %, and a magnetic information recording medium comprising a magnetic recording layer formed on the glass substrate.Type: ApplicationFiled: May 29, 2002Publication date: June 12, 2003Inventors: Mikio Ikenishi, Atsuko Morita, Xuelu Zou
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Publication number: 20030100431Abstract: Titanium is added in the form of atoms, a colloid, or ions to a glass to be subjected to laser processing in which the ablation or vaporization caused by the energy of an absorbed laser light is utilized. Since titanium can be incorporated into the glass through melting, the threshold value for processing can be easily regulated by changing the amount titanium to be added and a material having evenness in processability can be obtained.Type: ApplicationFiled: October 3, 2002Publication date: May 29, 2003Inventors: Hirotaka Koyo, Tadashi Koyama, Keiji Tsunetomo
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Publication number: 20030087745Abstract: The invention relates to a borosilicate glass of high chemicals resistance, having a composition (in % by weight, based on oxide) of SiO2 70-77; B2O3 6 -<11.5; Al2O3 4-8.5; Li2O 0-2; Na2O 4-9.5; K2O 0-5; with Li2O+Na2O+K2O 5-11; MgO 0-2; CaO 0-2; with MgO+CaO 0-3; ZrO2 0-<0.5; CeO2 0-1.Type: ApplicationFiled: August 13, 2002Publication date: May 8, 2003Inventors: Ulrich Peuchert, Christian Kunert, Reiner Bartsch
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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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Publication number: 20030064874Abstract: The present invention provides a composition for use in forming an opaque porcelain enamel coating on a metal substrate. A porcelain enamel coating formed using a composition according to the invention readily adheres to metal substrates such as, for example, steel, that are degreased-only. Furthermore, such a porcelain enamel coating displays an acid resistance of A according to ISO 2722 and good easy-to-clean properties. The composition according to the invention includes a glass component including by weight from about 45% to about 55% SiO2, from about 8% to about 17% B2O3, from about 1.8% to about 17.7% SrO+BaO, from about 1.9% to about 10% Li2O, up to about 6% ZrO2, from about 2% to about 11% TiO2, from about 1.5% to about 6% K2O, from about 1% to about 4% MoO3, from about 0.3% to about 13% Na2O, up to about 2% NiO, up to about 3% Al2O3, up to about 2.9% MnO, up to about 0.8% CoO, up to about 3% MgO, up to about 5% CaO, and up to about 2% Sb2O3.Type: ApplicationFiled: April 8, 2002Publication date: April 3, 2003Applicant: Ferro France - S.A.R.L.Inventors: Jean-Christophe Eckmann, Moha Ait Ali Oumoumene, Francois Roques
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Patent number: 6537937Abstract: An alkali-free glass consisting essentially of: SiO2 64 to 76 mol %, Al2O3 5 to 14 mol %, B2O3 5 to 16 mol %, MgO 1 to 16.5 mol %, CaO 0 to 14 mol %, SrO 0 to 6 mol %, and BaO 0 to 2 mol %.Type: GrantFiled: August 2, 2000Date of Patent: March 25, 2003Assignee: Asahi Glass Company, LimitedInventors: Manabu Nishizawa, Yasumasa Nakao, Akio Koike, Junichiro Kase
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Patent number: 6537938Abstract: A glass for anodic bonding, which is a glass to be anodically bonded to a silicon crystal substrate and which contains substantially no Na2O and contains from 4 to 8 mol % of Li2O.Type: GrantFiled: September 1, 2000Date of Patent: March 25, 2003Assignee: Asahi Techno Glass CorporationInventor: Seiji Miyazaki
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Publication number: 20030054937Abstract: The invention relates to a glass having the composition (in % by weight, based on oxide) SiO2 about 78.5-about 79.5, B2O3 about 13.0-about 14.0, Al2O3 about 2.0 -about 3.0, Na2O about 4.5-about 5.5, K2O 0-about 0.6, which may be used in the production of thermal shock-resistant beverage containers, particularly teapots, coffee machine jugs and baby-milk bottles.Type: ApplicationFiled: November 5, 2002Publication date: March 20, 2003Applicant: SCHOTT GLASInventors: Christian Kunert, Johannes Roettgers, Roland Leroux, Peter Brix
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Patent number: 6527846Abstract: The invention relates to a glass-ceramic material for dental restoration having a high crystalline leucite content. The leucite crystals are needle- or rod-shaped, have a thickness of between 0.3 and 1.5 micrometers and are between 7.5 and 20 micrometers in length. Said glass-ceramic material is substantially semi-transparent and contains, in% by weight: between 67 and 71% SiO2, between 8 and 12% Al2O3, between 3 and 5% Na2O, between 8 and 10% K2O, between 1 and 3% CaO, between 0.2 and 2% BaO, between 0.5 and 2% CeO2, between 0.2 and 1% TiO2 and between 0.5 and 2% B2O3. The above glass-ceramic material presents improved fracture strength and offers new indications for the use of full ceramic materials in dental technology, notably metal-free dental restoration.Type: GrantFiled: February 16, 2001Date of Patent: March 4, 2003Assignee: Chemichl AGInventor: Gerhard Beham
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Patent number: 6528444Abstract: For environmental protection, a glass composition for lamps that can suppress the consumption of mercury by the glass is provided. An embodiment of the glass composition consists essentially of, expressed in percentages by weight: SiO2: 65-75, Al2O3: 0.5-4, Na2O: 1-8, K2O: 1-8, Li2O: 0-2, MgO: 0.5-5, CaO: 1-8, SrO: 1-7, BaO: 3.5-7, B2O3: 0-3, Sb2O3: 0-1, Fe2O3: 0-0.2, TiO2: 0-1, CeO2: 0-1; and the total amount of Na2O, K2O and Li2O is not more than 13 weight %. The glass composition is substantially free of lead.Type: GrantFiled: February 8, 1999Date of Patent: March 4, 2003Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toshifumi Kondoh, Yutaka Koyamada, Katsuaki Iwama
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Publication number: 20030029203Abstract: The present invention relates generally to UV (ultraviolet) photosensitive bulk glass, and particularly to batch meltable alkali boro-alumino-silicate and germanosilicate glasses. The photosensitive bulk glass of the invention exhibits photosensitivity to UV wavelengths below 300 nm.Type: ApplicationFiled: June 28, 2002Publication date: February 13, 2003Inventors: Nicholas F. Borrelli, George B. Hares, Charlene M. Smith
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Patent number: 6514893Abstract: High-strength sinterable lithium disilicate glass ceramics are described which can be further processed in particular by pressing in the viscous state to shaped dental products.Type: GrantFiled: October 19, 1999Date of Patent: February 4, 2003Assignee: Ivoclar AGInventors: Marcel Schweiger, Martin Frank, Volker Rheinberger, Wolfram Hoeland
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Patent number: 6511932Abstract: A graded index lens is obtained by treating a raw glass material having a rod shape by ion exchange using silver to form a refractive index distribution in the radial direction of the rod, wherein the raw glass material comprises a glass composition of the following components: 15<Na2O≦30 mol %; 10<Al2O3≦25 mol %; 27.5≦SiO2≦55 mol %; 3≦B2O3≦18 mol %; 2.5≦MgO≦18 mol %; 0≦Ta2O5≦5 mol %; 0≦La2O3≦3 mol %; 0≦BaO≦3 mol %; and 0≦ZrO2≦3 mol %.Type: GrantFiled: December 1, 2000Date of Patent: January 28, 2003Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Jun Yamaguchi, Shigeo Kittaka
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Publication number: 20030015003Abstract: Glass fibers, particularly those prepared by flame attenuation, display excellent chemical resistance to both acids and moisture while being highly biosoluble at the same time. The glass compositions used to make the fibers consisting essentially of: 38-52 wt % SiO2, 8-17 wt % A1203, 7-17 wt % B203, 0-7 wt % RO, wherein R is Ca, Mg, in a combination thereof, 20-31 wt R120, wherein R1 is Na, K, or a combination thereof, and 0-2.5 wt % Li20, and has a Final Aged Tensile Value of at least 3000; a HTV of 1700° F. or less and a liquidus temperature at least 200° F. lower than HTV.Type: ApplicationFiled: April 23, 2001Publication date: January 23, 2003Inventors: Diana Kim Fisler, Jon Frederick Bauer
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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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Publication number: 20030004049Abstract: The glass compositions of the present invention contain a limited amount of Al2O3 and MgO resulting in a glass fiber having an acceptable chemical durability for product performance while providing a relatively high biosolubility. The composition includes an amount of BaO which improves fiber durability while controlling viscosity and other processing parameters. The compositions further include amounts of Na2O, K2O, and CaO, which have the effect of increasing fiber biosolubility and allows for the use of reduced amounts of Al2O3 and MgO in the composition. The glass compositions of the present invention have KI values that generally equal or exceed a KI value of 40 and are suitable for rotary processing. The compositions have liquidus temperatures below about 1600° F., and have a &Dgr;T (T at 1000 Poise−liquidus T) of at least 130° F.Type: ApplicationFiled: July 16, 2001Publication date: January 2, 2003Inventors: Stephanie M. Mattson, Charles F. Rapp
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Patent number: 6500778Abstract: A glass substrate for a display, which has a strain point of at least 550° C., an average linear expansion coefficient of from 65×10−7 to 100×10−7/°C. within a range of from 50 to 350° C. and a ratio KIC/d of at least 280 Pa·kg·m7/2 where KIC is the fracture toughness and d is the density.Type: GrantFiled: August 23, 2000Date of Patent: December 31, 2002Assignee: Asahi Glass Company, LimitedInventors: Kei Maeda, Yasumasa Nakao
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Publication number: 20020193231Abstract: Provided are glass compositions uniquely applicable for the preparation of ultrafine fibers for filtration and separation applications. The glasses meet all physical and chemical criteria, including that for biodissolution rate.Type: ApplicationFiled: March 14, 2002Publication date: December 19, 2002Inventor: Jon Frederick Bauer
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Publication number: 20020183188Abstract: The invention relates to an alkali-free aluminoborosilicate glass having a coefficient of thermal expansion &agr;20/300 of between 2.8 and 3.9·10−6/K, which has the following composition (in % by weight, based on oxide): SiO2>58-65, B2O3>6-11.5; Al2O3>14-20, MgO>3-6, CaO>4.5-10, SrO 0-<1.5, BaO>1.5-6, or SrO 0-<4, BaO>2.5-6, respectively, with SrO+BaO>3, ZnO 0-<2, and which is highly suitable for use as a substrate glass both in display technology and in thin-film photovoltaics.Type: ApplicationFiled: December 21, 2001Publication date: December 5, 2002Applicant: SCHOTT GLASSInventor: Ulrich Peuchert
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Publication number: 20020177516Abstract: The invention relates to methods of vitrifying waste and for lowering the melting point of glass forming systems by including lithia formers in the glass forming composition in significant amounts, typically from about 0.16 wt % to about 11 wt %, based on the total glass forming oxides. The lithia is typically included as a replacement for alkali oxide glass formers that would normally be present in a particular glass forming system. Replacement can occur on a mole percent or weight percent basis, and typically results in a composition wherein lithia forms about 10 wt % to about 100 wt % of the alkali oxide glass formers present in the composition. The present invention also relates to the high lithia glass compositions formed by these methods.Type: ApplicationFiled: March 28, 2002Publication date: November 28, 2002Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
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Patent number: 6474263Abstract: The bolus is intended to be received in the reticulum of a ruminant. It comprises a body (10) having a housing (12) for containing a data interchange device (14). According to the invention, the body (10) is made of a material based on alumina, Al2O3, and/or on silica, SiO2.Type: GrantFiled: January 11, 2001Date of Patent: November 5, 2002Assignee: The European CommunityInventors: Gerardo Caja Lopez, Joan Francesc Vilaseca Vintro, Christophe Korn
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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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Publication number: 20020151426Abstract: An alkali-free glass consists essentially of, in mass percent, 58-70% SiO2, 10-19% Al2O3, 6.5-15% B2O3, 0-2% MgO, 3-12% CaO, 0.1-5% BaO, 0-4% SrO, 0.1-6% BaO+SrO, 0-5% ZnO, 5-15% MgO+CaO+BaO+SrO+ZnO, 0-5% ZrO2, 0-5% TiO2, and 0-5% P2O5. The alkali-free glass contains substantially no alkali metal oxide and has a density of 2.45g/cm3 or less, an average coefficient of thermal expansion of 25×10−7/° C.-36×10−7/° C. within a temperature range between 30 and 380° C., and a strain point not lower than 640° C.Type: ApplicationFiled: January 30, 2002Publication date: October 17, 2002Applicant: NIPPON ELECTRIC GLASS CO., LTDInventors: Takashi Murata, Shinkichi Miwa
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Patent number: 6461734Abstract: A substrate for use in supporting high density biological or chemical arrays that is made from borosilicate or boroaluminosilicate glass. It has been demonstrated that a functionalized coating used to immobilize oligonucleotides for example, retains its functionality when exposed to environmental stresses when it is applied to a slide composed of a glass material having a low sodium oxide content.Type: GrantFiled: February 4, 1999Date of Patent: October 8, 2002Assignee: Corning IncorporatedInventor: Alain R. E. Carre
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Patent number: 6448195Abstract: There is disclosed a composition for a ceramic substrate comprising a mixture of: powdered borosilicate-based glass comprising about 5% to 17.5% by weight of B2O3, about 28% to 44% by weight of SiO2, 0% to about 20% by weight of Al2O3, and about 36% to 50% by weight of MO (where MO is at least one selected from the group consisting of CaO, MgO, and BaO), and a powdered ceramic; in which the amount of the powdered borosilicate-based glass is about 40% to 49% by weight based on the total amount of the composition for a ceramic substrate, and the amount of the powdered ceramic is about 60% to 51% by weight based on the total amount of the composition for a ceramic substrate.Type: GrantFiled: August 15, 2001Date of Patent: September 10, 2002Assignee: Murata Manufacturing Co. Ltd.Inventors: Kazuo Kishida, Akira Shiratori, Osamu Yokokura, Hiroshi Takagi
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Publication number: 20020123419Abstract: The present invention relates generally to UV (ultraviolet) photosensitive bulk glass, and particularly to batch meltable alkali boro-alumino-silicate glasses. The photosensitive bulk glass of the invention exhibits photosensitivity to UV wavelengths below 300 nm. The photosensitivity of the alkali boro-alumino-silicate bulk glass to UV wavelengths below 300 nm provide for the making of refractive index patterns in the glass. With a radiation source below 300 nm, such a laser, refractive index patterns are formed in the glass. The inventive photosensitive optical refractive index pattern forming bulk glass allows for the formation of patterns in glass and devices which utilize such patterned glass.Type: ApplicationFiled: March 15, 2002Publication date: September 5, 2002Inventors: Nicholas F. Borrelli, George B. Hares, Charlene M. Smith
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Patent number: 6436332Abstract: The dielectric constant of low loss tangent glass-ceramic compositions, such as cordierite-based glass ceramics, is modified over a range by selective addition of high dielectric constant ceramics, such as titanates, tantalates and carbides and metals, such as copper. The low loss tangent is retained or improved over a range of frequencies, and the low CTE of the glass-ceramic is maintained. BaTiO3, SrTiO3 and Ta2O5 produce the most effective results.Type: GrantFiled: November 2, 2000Date of Patent: August 20, 2002Assignee: International Business Machines CorporationInventors: Benjamin V. Fasano, Robert A. Rita
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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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Publication number: 20020082158Abstract: Glasses are disclosed which are used to produce substrates in flat panel display devices. The glasses exhibit a density less than about 2.45 gm/cm3 and a liquidus viscosity greater than about 200,000 poises, the glass consisting essentially of the following composition, expressed in terms of mol percent on an oxide basis: 65-75 SiO2, 7-13 Al2O3, 5-15 B2O3, 0-3 MgO, 5-15 CaO, 0-5 SrO, and essentially free of BaO. The glasses also exhibit a strain point exceeding 650° C.Type: ApplicationFiled: November 16, 2001Publication date: June 27, 2002Applicant: Corning IncorporatedInventors: Lisa C. Chacon, Adam J.G. Ellison, George B. Hares, Jeffrey T. Kohli, Josef C. Lapp, Robert Morena
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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: 6407020Abstract: There is disclosed a ceramics composition mainly comprising Ba-based glass and a quartz. The content of Ba-based glass is in a range of 55.0 to 69.4 wt %, the content of a quartz is in a range of 12.1 to 40.2 wt %, and the content of Al2O3 is 24.5 wt % or less. For the components of Ba-based glass, in terms of oxides, the content of BaO is in a range of 19 to 29 mol %, the content of Si02 is in a range of 62 to 72 mol %, the content of Al2O3 is in a range of 6 to 11 mol %, and the content of B2O3 per the total of 100 mol of BaO, SiO2 and Al2O3 is in a range of 3 to 7 mol. Therefore, the sintering can be performed at a temperature equal to or less than the melting point of Ag, Cu, or an alloy mainly containing Ag or Cu, dielectric constant is low, but linear expansion coefficient is high, and the co-firing can be realized with other dielectric material and magnetic material which can be sintered at a low temperature.Type: GrantFiled: March 29, 2000Date of Patent: June 18, 2002Assignee: TDK CorporationInventors: Hiroshige Ohkawa, Toshio Sakurai
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Patent number: 6403509Abstract: A high LTa, low UV and IR transmittance grey glass employing as its colorant portion iron (Fe2O3/FeO), erbium (Er2O3) and, optionally, titanium (TiO2). Enhanced effects are achieved by forming separate prebatch mixes, one of which includes rouge, metallic Si (optional), SiO and sand, the other including the remainder of ingredients, which after separate formation are then admixed to form the final, overall batch.Type: GrantFiled: February 23, 2001Date of Patent: June 11, 2002Assignee: Guardian Industries Corp.Inventors: Gary Seldon Cochran, Anthony Vincent Longobardo, Ksenia Alexander Landa, Leonid Mendel Landa
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Publication number: 20020065187Abstract: The subject of the invention is a glass sheet intended to be thermally toughened, the matrix of which is of the silica-soda-lime type, having an expansion coefficient &agr; of greater than 100×10−7 K−1, a Young's modulus E of greater than 60 GPa and a thermal conductivity k of less than 0.9 W/m.K.Type: ApplicationFiled: November 26, 2001Publication date: May 30, 2002Applicant: SAINT-GOBAIN GLASS FRANCEInventors: Frederic Bordeaux, Lucas Duffrene
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Patent number: 6395659Abstract: The ultraviolet/infrared transmittance glass consists of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % B2O3; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O; 5 to 15 wt. % total amount of MgO and CaO; and 0 to 20 wt. % total amount of Na2O and K2O, colorants including: equal to or more than 0.05 wt. % and less than 0.2 wt. % total iron oxide (T—Fe2O3) expressed as Fe2O3; 0.63 to 1.4 wt. % CeO2; 0.02 to 1.5 wt. % TiO2; 0.0005 to 0.005 wt. % CoO; and 0.0003 to 0.002 wt. % Se. FeO expressed as Fe2O3 is between 30 wt. % and 60 wt. % of T—Fe2O3.Type: GrantFiled: June 7, 2001Date of Patent: May 28, 2002Assignee: Nippon Sheet Glass Co., Ltd.Inventors: Hiromitsu Seto, Koichi Sakaguchi, Shigeki Nakagaki
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Patent number: 6391809Abstract: The present invention is directed at a copper aluminosilicate glass, having coefficients of thermal expansion (CTEs) of between 20-82×10−7/° C. (over a range of 25-500° C.) and a softening points in the range of 660-1000° C., being suitable for use as a sealing glass, especially for borosilicate glass, and having a composition consisting essentially, in terms of weight percent on an oxide basis, of 35-68 SiO2, 3-25 Al2O3, 2-26 B2O3, 0-20 R2O, 1-30 RO, 2-33 CuO, 0-4 F, 0-10 MxOy, where R2O is an alkali oxide selected from the group consisting of Li2O, Na2O, and K2O, and RO is an alkaline earth oxide selected from the group consisting of CaO, MgO, ZnO, SrO, and BaO, and MxOy is a transition metal oxide selected from the group consisting of Co2O3, TiO2, NiO, MnO2, and Fe2O3.Type: GrantFiled: June 1, 2000Date of Patent: May 21, 2002Assignee: Corning IncorporatedInventor: Dianna M. Young
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Patent number: 6387832Abstract: Transition metal NZP type compounds are synthesized. Examples of these compounds include MnZr4(PO4)6, FeZr4(PO4)6, CoZr4(PO4)6, NiZr4(PO4)6, and CuZr4(PO4)6. These compounds are synthesized by the Xerogel process. These transition metal NZP type compounds can be used as colorants in applications such as ceramic glazes where high thermal stability of the colorant is important.Type: GrantFiled: July 31, 2000Date of Patent: May 14, 2002Assignee: The Penn State Research FoundationInventors: Sridhar Komarneni, William W. Gould
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Patent number: 6379805Abstract: A low temperature-fired porcelain article includes a barium component in an amount of 40 to 65 wt % when calculated as BaO, a silicon component in an amount of 25 to 46 wt % when calculated as SiO2, an aluminum component in an amount of 0.1 to 20 wt % when calculated as Al2O3, a boron component in an amount of 0.3 to 1.5 wt % when calculated as B2O3, and a zinc component in an amount of 0.5 to 20 wt % when calculated as ZnO, optionally also a chromium component in an amount of 0.5 to 3.5 wt % when calculated as Cr2O3 wherein the porcelain article has a dielectric constant ∈r of not more than 10, a quality coefficient Q of not less than 2500, and preferably has an absolute value of a temperature coefficient &tgr;f of the resonance frequency of not more than 30 ppm/° C.Type: GrantFiled: January 19, 2000Date of Patent: April 30, 2002Assignee: NGK Insulators, Ltd.Inventors: Takeshi Oobuchi, Yasunori Kouda, Hideyuki Baba
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Patent number: 6376402Abstract: The glass or glass-ceramic has the following composition (in % by weight based on oxide content): SiO2, 25 to 50; B2O3, >5 to 16; Al2O3, 10 to 17; P2O5, 0 to 8; Li2O,5 to 15; Na2O, 0 to 10; K2O, 0 to 10; MgO, 10 to 30; CaO, 0 to 10; SrO, 0 to 8; ZnO, 0 to 8; TiO2, 0.1 to 10; ZrO2, 0 to 8; and at least one refining agent, in an amount as needed according to its purpose. The sum total amount of divalent metal oxides (RO) present is less or equal to than 45% by weight based on oxide content and the sum total amount of alkali metal oxides (R2O) present is less than or equal to 30% by weight based on oxide content. The glass or glass-ceramic material generally has elasticity modulus values (E)>90×103 N/mm2 and <125×103 N/mm2, specific elasticity modulus values (E/&rgr;)>30×105 N cm/g and <45×105 N cm/g and thermal expansion coefficient values (&agr;20/300)>7.0×10−6/K and <11.0×10−6/K.Type: GrantFiled: April 19, 2000Date of Patent: April 23, 2002Assignee: Schott GlasInventors: Wolfgang Pannhorst, Ute Woelfel, Silke Wolff
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Patent number: 6376055Abstract: There is disclosed a composition for a ceramic substrate comprising a mixture of: powdered borosilicate-based glass comprising about 5% to 17.5% by weight of B2O3, about 28% to 44% by weight of SiO2, 0% to about 20% by weight of Al2O3, and about 36% to 50% by weight of MO (where MO is at least one selected from the group consisting of CaO, MgO, and BaO), and a powdered ceramic; in which the amount of the powdered borosilicate-based glass is about 40% to 49% by weight based on the total amount of the composition for a ceramic substrate, and the amount of the powdered ceramic is about 60% to 51% by weight based on the total amount of the composition for a ceramic substrate.Type: GrantFiled: April 18, 2000Date of Patent: April 23, 2002Assignee: Murata Manufacturing Co., Ltd.Inventors: Kazuo Kishida, Akira Shiratori, Osamu Yokokura, Hiroshi Takagi
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Patent number: 6372155Abstract: The object of the present invention is to provide an oxide glass capable of exhibiting a long lasting afterglow and photostimulated phosphorescence, whereby energy can be accumulated by radiation excitation, for example, by &ggr;-rays, X-rays, UV-rays, etc. and light emission can be continued for a long time even after stopping the excitation. That is, the present invention relates to an oxide glass capable of exhibiting a long lasting afterglow and photostimulated luminescence, characterized by a constitutional composition comprising, at least, terbium oxide (Tb2O3) or manganese oxide (MnO), gallium oxide (Ga2O3) or aluminum oxide (Al2O3), alkali metal oxide or alkaline earth metal oxide and boron oxide (B2O3) or silicon oxide (SiO2) or zinc oxide (ZnO).Type: GrantFiled: November 30, 1999Date of Patent: April 16, 2002Assignee: Sumita Optical Glass, Inc.Inventors: Masaaki Yamazaki, Yoshinori Yamamoto, Naruhito Sawanobori, Shinobu Nagahama
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Publication number: 20020033031Abstract: The present invention relates generally to UV (ultraviolet) photosensitive bulk glass, and particularly to batch meltable alkali boro-alumino-silicate glasses. The photosensitive bulk glass of the invention exhibits photosensitivity to UV wavelengths below 250 nm.Type: ApplicationFiled: June 5, 2001Publication date: March 21, 2002Inventors: Nicholas F. Borrelli, George B. Hares, Charlene M. Smith
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Patent number: 6358873Abstract: A glass for tungsten halogen lamp glass envelopes, glass filter lenses, and glass filters consisting essentially in terms of weight percent on the oxide basis, of about 50-62% SiO2, 10-17% Al2O3, 0-6% B2O3, 3.6-10% CaO, 0-7.5% MgO, 0.1-0.3% SrO, 2.4-18% BaO, 0-1% ZnO, 1-8% Nd2O3. The glass exhibits the following physical properties: strain point between about 665° C. to about 750° C., coefficient of thermal expansion to the set point of between about 49-59×10−7/° C., liquidus temperature below 1320° C., viscosity at liquidus temperature greater than 2,000 poises, and transmission at 585 nm of between 5-60% for a 1.2 mm thickness. The lamp color temperature for a tungsten halogen lamp containing a glass envelope, a glass filter lens, or a glass filter prepared from the glass composition is increased from about 3 to 7% above a similar glass with no Nd2O3, and the total visible lumen loss is limited to less than about 10%.Type: GrantFiled: June 15, 2000Date of Patent: March 19, 2002Assignee: Corning IncorporatedcInventor: Ronald L. Stewart
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Patent number: RE37920Abstract: A flat panel display comprising an aluminosilicate glass panel that exhibits a strain point higher than 640° C., a weight loss less than 20 mg/cm2 after immersion for 24 hours in an aqueous 5% by weight HCl solution at 95° C., a CTE in the range of 31-57×10−7/° C., is nominally free of alkali metal oxides and has a composition consisting essentially of, as calculated in percent by weight on an oxide basis, 49-67% SiO2, at least 6% Al2O3, the Al2O3 being 6-14% in conjunction with 55-67% SiO2 and 16-23% in conjunction with 49-58% SiO2, SiO2+Al2O3>68%, 0-15% B2O3, at least one alkaline earth metal oxide selected from the group consisting of, in the proportions indicated, 0-21% BaO, 0-15% SrO, 0-18% CaO, 0-8% MgO and 12-30% BaO+CaO+SrO+MgO.Type: GrantFiled: April 15, 1998Date of Patent: December 3, 2002Assignee: Corning IncorporatedInventors: Dawne M. Moffatt, Dean V. Neubauer