And Aluminum Patents (Class 501/66)
  • Patent number: 6635592
    Abstract: 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: Grant
    Filed: July 27, 2001
    Date of Patent: October 21, 2003
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Hiroyuki Kosokabe, Koichi Hashimoto
  • Patent number: 6632759
    Abstract: 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: Grant
    Filed: June 5, 2001
    Date of Patent: October 14, 2003
    Assignee: Corning Incorporated
    Inventors: Nicholas F. Borelli, George B. Hares, Charlene M. Smith
  • Publication number: 20030181308
    Abstract: 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: Application
    Filed: March 13, 2003
    Publication date: September 25, 2003
    Inventors: Tomoko Atagi, Masanobu Ito
  • Publication number: 20030181309
    Abstract: 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: Application
    Filed: February 3, 2003
    Publication date: September 25, 2003
    Applicant: SCHOTT GLAS
    Inventors: Christian Kunert, Karin Naumann, Franz Ott, Ottmar Becker
  • Patent number: 6610621
    Abstract: 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: Grant
    Filed: November 28, 2001
    Date of Patent: August 26, 2003
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Kenji Masuko
  • Publication number: 20030144125
    Abstract: 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: Application
    Filed: November 20, 2002
    Publication date: July 31, 2003
    Inventors: Yasuhiro Anma, Tomoyuki Hayashi, Junko Ishizu, Tatsushi Kunou
  • Patent number: 6589896
    Abstract: 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: Grant
    Filed: June 6, 2002
    Date of Patent: July 8, 2003
    Assignee: Osram Sylvania Inc.
    Inventor: Richard C. Marlor
  • Publication number: 20030109370
    Abstract: 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: Application
    Filed: May 29, 2002
    Publication date: June 12, 2003
    Inventors: Mikio Ikenishi, Atsuko Morita, Xuelu Zou
  • Publication number: 20030100431
    Abstract: 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: Application
    Filed: October 3, 2002
    Publication date: May 29, 2003
    Inventors: Hirotaka Koyo, Tadashi Koyama, Keiji Tsunetomo
  • Publication number: 20030087745
    Abstract: 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: Application
    Filed: August 13, 2002
    Publication date: May 8, 2003
    Inventors: Ulrich Peuchert, Christian Kunert, Reiner Bartsch
  • Publication number: 20030087746
    Abstract: 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: Application
    Filed: August 2, 2002
    Publication date: May 8, 2003
    Inventors: Simone Ritter, Ulrich Peuchert
  • Publication number: 20030064874
    Abstract: 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: Application
    Filed: April 8, 2002
    Publication date: April 3, 2003
    Applicant: Ferro France - S.A.R.L.
    Inventors: Jean-Christophe Eckmann, Moha Ait Ali Oumoumene, Francois Roques
  • Patent number: 6537937
    Abstract: 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: Grant
    Filed: August 2, 2000
    Date of Patent: March 25, 2003
    Assignee: Asahi Glass Company, Limited
    Inventors: Manabu Nishizawa, Yasumasa Nakao, Akio Koike, Junichiro Kase
  • Patent number: 6537938
    Abstract: 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: Grant
    Filed: September 1, 2000
    Date of Patent: March 25, 2003
    Assignee: Asahi Techno Glass Corporation
    Inventor: Seiji Miyazaki
  • Publication number: 20030054937
    Abstract: 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: Application
    Filed: November 5, 2002
    Publication date: March 20, 2003
    Applicant: SCHOTT GLAS
    Inventors: Christian Kunert, Johannes Roettgers, Roland Leroux, Peter Brix
  • Patent number: 6527846
    Abstract: 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: Grant
    Filed: February 16, 2001
    Date of Patent: March 4, 2003
    Assignee: Chemichl AG
    Inventor: Gerhard Beham
  • Patent number: 6528444
    Abstract: 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: Grant
    Filed: February 8, 1999
    Date of Patent: March 4, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Toshifumi Kondoh, Yutaka Koyamada, Katsuaki Iwama
  • Publication number: 20030029203
    Abstract: 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: Application
    Filed: June 28, 2002
    Publication date: February 13, 2003
    Inventors: Nicholas F. Borrelli, George B. Hares, Charlene M. Smith
  • Patent number: 6514893
    Abstract: 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: Grant
    Filed: October 19, 1999
    Date of Patent: February 4, 2003
    Assignee: Ivoclar AG
    Inventors: Marcel Schweiger, Martin Frank, Volker Rheinberger, Wolfram Hoeland
  • Patent number: 6511932
    Abstract: 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: Grant
    Filed: December 1, 2000
    Date of Patent: January 28, 2003
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Jun Yamaguchi, Shigeo Kittaka
  • Publication number: 20030015003
    Abstract: 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: Application
    Filed: April 23, 2001
    Publication date: January 23, 2003
    Inventors: Diana Kim Fisler, Jon Frederick Bauer
  • Patent number: 6503860
    Abstract: 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: Grant
    Filed: February 4, 2000
    Date of Patent: January 7, 2003
    Assignee: Corning Incorporated
    Inventors: James E. Dickinson, Adam J. G. Ellison, Alexandre M. Mayolet, Michel Prassas
  • Publication number: 20030004049
    Abstract: 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: Application
    Filed: July 16, 2001
    Publication date: January 2, 2003
    Inventors: Stephanie M. Mattson, Charles F. Rapp
  • Patent number: 6500778
    Abstract: 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: Grant
    Filed: August 23, 2000
    Date of Patent: December 31, 2002
    Assignee: Asahi Glass Company, Limited
    Inventors: Kei Maeda, Yasumasa Nakao
  • Publication number: 20020193231
    Abstract: 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: Application
    Filed: March 14, 2002
    Publication date: December 19, 2002
    Inventor: Jon Frederick Bauer
  • Publication number: 20020183188
    Abstract: 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: Application
    Filed: December 21, 2001
    Publication date: December 5, 2002
    Applicant: SCHOTT GLASS
    Inventor: Ulrich Peuchert
  • Publication number: 20020177516
    Abstract: 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: Application
    Filed: March 28, 2002
    Publication date: November 28, 2002
    Inventors: Carol M. Jantzen, John B. Pickett, Connie A. Cicero-Herman, James C. Marra
  • Patent number: 6474263
    Abstract: 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: Grant
    Filed: January 11, 2001
    Date of Patent: November 5, 2002
    Assignee: The European Community
    Inventors: Gerardo Caja Lopez, Joan Francesc Vilaseca Vintro, Christophe Korn
  • Patent number: 6468933
    Abstract: 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: Grant
    Filed: September 21, 1999
    Date of Patent: October 22, 2002
    Assignee: Nippon Electric Glass Co., Ltd.
    Inventors: Toshiharu Narita, Hiroki Yamazaki
  • Publication number: 20020151426
    Abstract: 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: Application
    Filed: January 30, 2002
    Publication date: October 17, 2002
    Applicant: NIPPON ELECTRIC GLASS CO., LTD
    Inventors: Takashi Murata, Shinkichi Miwa
  • Patent number: 6461734
    Abstract: 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: Grant
    Filed: February 4, 1999
    Date of Patent: October 8, 2002
    Assignee: Corning Incorporated
    Inventor: Alain R. E. Carre
  • Patent number: 6448195
    Abstract: 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: Grant
    Filed: August 15, 2001
    Date of Patent: September 10, 2002
    Assignee: Murata Manufacturing Co. Ltd.
    Inventors: Kazuo Kishida, Akira Shiratori, Osamu Yokokura, Hiroshi Takagi
  • Publication number: 20020123419
    Abstract: 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: Application
    Filed: March 15, 2002
    Publication date: September 5, 2002
    Inventors: Nicholas F. Borrelli, George B. Hares, Charlene M. Smith
  • Patent number: 6436332
    Abstract: 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: Grant
    Filed: November 2, 2000
    Date of Patent: August 20, 2002
    Assignee: International Business Machines Corporation
    Inventors: Benjamin V. Fasano, Robert A. Rita
  • Patent number: 6417124
    Abstract: 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: Grant
    Filed: August 21, 2000
    Date of Patent: July 9, 2002
    Assignee: Schott Glas
    Inventors: Ulrich Peuchert, Thomas Pfeiffer, Peter Brix, Hildegard Roemer
  • Publication number: 20020082158
    Abstract: 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: Application
    Filed: November 16, 2001
    Publication date: June 27, 2002
    Applicant: Corning Incorporated
    Inventors: Lisa C. Chacon, Adam J.G. Ellison, George B. Hares, Jeffrey T. Kohli, Josef C. Lapp, Robert Morena
  • Patent number: 6410467
    Abstract: 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: Grant
    Filed: April 8, 1999
    Date of Patent: June 25, 2002
    Assignee: Corning Incorporated
    Inventors: James E. Dickinson, Adam J G Ellison, Alexandre M. Mayolet, Michel Prassas
  • Patent number: 6407020
    Abstract: 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: Grant
    Filed: March 29, 2000
    Date of Patent: June 18, 2002
    Assignee: TDK Corporation
    Inventors: Hiroshige Ohkawa, Toshio Sakurai
  • Patent number: 6403509
    Abstract: 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: Grant
    Filed: February 23, 2001
    Date of Patent: June 11, 2002
    Assignee: Guardian Industries Corp.
    Inventors: Gary Seldon Cochran, Anthony Vincent Longobardo, Ksenia Alexander Landa, Leonid Mendel Landa
  • Publication number: 20020065187
    Abstract: 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: Application
    Filed: November 26, 2001
    Publication date: May 30, 2002
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Frederic Bordeaux, Lucas Duffrene
  • Patent number: 6395659
    Abstract: 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: Grant
    Filed: June 7, 2001
    Date of Patent: May 28, 2002
    Assignee: Nippon Sheet Glass Co., Ltd.
    Inventors: Hiromitsu Seto, Koichi Sakaguchi, Shigeki Nakagaki
  • Patent number: 6391809
    Abstract: 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: Grant
    Filed: June 1, 2000
    Date of Patent: May 21, 2002
    Assignee: Corning Incorporated
    Inventor: Dianna M. Young
  • Patent number: 6387832
    Abstract: 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: Grant
    Filed: July 31, 2000
    Date of Patent: May 14, 2002
    Assignee: The Penn State Research Foundation
    Inventors: Sridhar Komarneni, William W. Gould
  • Patent number: 6379805
    Abstract: 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: Grant
    Filed: January 19, 2000
    Date of Patent: April 30, 2002
    Assignee: NGK Insulators, Ltd.
    Inventors: Takeshi Oobuchi, Yasunori Kouda, Hideyuki Baba
  • Patent number: 6376402
    Abstract: 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: Grant
    Filed: April 19, 2000
    Date of Patent: April 23, 2002
    Assignee: Schott Glas
    Inventors: Wolfgang Pannhorst, Ute Woelfel, Silke Wolff
  • Patent number: 6376055
    Abstract: 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: Grant
    Filed: April 18, 2000
    Date of Patent: April 23, 2002
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuo Kishida, Akira Shiratori, Osamu Yokokura, Hiroshi Takagi
  • Patent number: 6372155
    Abstract: 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: Grant
    Filed: November 30, 1999
    Date of Patent: April 16, 2002
    Assignee: Sumita Optical Glass, Inc.
    Inventors: Masaaki Yamazaki, Yoshinori Yamamoto, Naruhito Sawanobori, Shinobu Nagahama
  • Publication number: 20020033031
    Abstract: 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: Application
    Filed: June 5, 2001
    Publication date: March 21, 2002
    Inventors: Nicholas F. Borrelli, George B. Hares, Charlene M. Smith
  • Patent number: 6358873
    Abstract: 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: Grant
    Filed: June 15, 2000
    Date of Patent: March 19, 2002
    Assignee: Corning Incorporatedc
    Inventor: Ronald L. Stewart
  • Patent number: RE37920
    Abstract: 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: Grant
    Filed: April 15, 1998
    Date of Patent: December 3, 2002
    Assignee: Corning Incorporated
    Inventors: Dawne M. Moffatt, Dean V. Neubauer