And Zinc Patents (Class 501/79)
  • Publication number: 20090165499
    Abstract: The invention discloses a glass-ceramic composition, a slurry, and a method for manufacturing a dielectric ceramic component with high frequency. The glass-ceramic composition comprises 5-30 wt % of aluminum oxide and 70-95 wt % of BiZnBSiAl glass. The invention mixes the glass-ceramic composition with an organic carrier to make a slurry, processes the slurry into green body, and then densities the green body to obtain dielectric ceramic component with high frequency, which can be sintered and densified under low temperature. Accordingly, the product of quality factor and resonance frequency of the component can meet the requirements of high quality factor and dielectric constant for industries.
    Type: Application
    Filed: July 28, 2008
    Publication date: July 2, 2009
    Inventors: Chin-Hung Wei, Yu-Ping Hsieh
  • Publication number: 20090163343
    Abstract: The present invention provides a blue-violet light blocking glass containing copper (I) halide fine particles that satisfactorily transmits light having a wavelength of 450 nm to 600 nm and sharply blocks light having a wavelength shorter than 450 nm. Specifically, the present invention provides a blue-violet light blocking glass containing a copper (I) halide and silver; for example, 20 to 85% by weight of SiO2; 2 to 75% by weight of B2O3; not more than 10% by weight of Al2O3; 2 to 30% by weight of at least one member selected from the group consisting of Li2O, Na2O, K2O, Rb2O and Cs2O; 1 to 15% by weight of at least one member selected from the group consisting of MgO, CaO, SrO, BaO and ZnO; not more than 10% by weight of at least one member selected from the group consisting of PbO, Nb2O5, ZrO2, La2O3, Y2O3, Ta2O3 and Gd2O3; not more than 5% by weight of at least one member selected from the group consisting of Sb2O3 and As2O3; not more than 5% by weight of SnO2; 0.
    Type: Application
    Filed: November 15, 2006
    Publication date: June 25, 2009
    Applicants: ISUZU GLASS CO., LTD., NATIONAL INSTITUTE ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Naoto Yamashita, Kazuhisa Kimura, Tatsuya Suetsugu, Toshihiko Einishi, Kohei Kadono
  • Publication number: 20090131239
    Abstract: A glass composition suitable for producing a graded-refractive-index rod lens having an angular aperture of 16-20° without containing lead or thallium and a graded-refractive-index rod lens produced from the composition are provided. The composition is a base glass composition for graded-refractive-index rod lenses, characterized by comprising, in terms of % by mole, 20?SiO2?52, 1?B2O3?30, 12?Li2O?18, 8?Na2O?15, 0?MgO?15, 0?SrO?10, 0?BaO?10, 0?ZnO?15, 0?TiO2?15, 0?Nb2O5?5, 0?Ta2O5?5, and 3<Bi2O3?13, provided that 45?SiO2+B2O3?65, 9?MgO+ZnO+TiO2?25, and 0?Nb2O5+Ta2O5?5, and by containing substantially no lead and substantially no thallium.
    Type: Application
    Filed: March 2, 2007
    Publication date: May 21, 2009
    Inventors: Tsuyoshi Kotake, Koichi Sakaguchi, Teruhide Inoue
  • Publication number: 20090102379
    Abstract: Disclosed is a glass composition composed of an oxide glass wherein the percentages of constitutional elements other than oxygen (O) expressed in atomic % are as follows: boron (B) is not less than 56% and not more than 72%; silicon (Si) is not less than 0% and not more than 15%; Zinc (Zn) is not less than 0% and not more than 18%; potassium (K) is not less than 8% and not more than 20%; and the total of K, sodium (Na) and lithium (Li) is not less than 12% and not more than 20%. This glass composition further may contain at least one of magnesium (Mg), calcium (Ca), strontium (Sr) and barium (Ba) in an amount of more than 0% and not more than 5%, and molybdenum (Mo) and/or tungsten (W) in an amount of more than 0% and not more than 3%.
    Type: Application
    Filed: September 1, 2006
    Publication date: April 23, 2009
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Osamu Inoue, Shinya Hasegawa, Miyuki Nakai, Tsutomu Koshizuka
  • Publication number: 20090105061
    Abstract: The present invention provides a glass composition that has good formability and tends not to cause electric-field breakdown when formed into a spacer for an electron beam-excited display. The present invention relates to a glass composition that contains the following components, in terms of mass %: 20?SiO2<40, 6<B2O3?30, 0?Al2O3?20, 45?(SiO2+B2O3+Al2O3)?74, 0?MgO?15, 5?CaO?40, 0?SrO?30, 0?BaO?25, 0<(SrO+BaO)?50, 20?(MgO+CaO+SrO+BaO)?60, 0?ZnO?10, 0?ZrO2<10, 0?La2O3?20, 0?Y2O3?10, 0?TiO2?3, 1?Fe2O3?12, 0?Nb2O5?10, 0?Ta2O5?10, and 1?TiO2+Fe2O3+Nb2O5+Ta2O5?12 and that is substantially free of alkali metal oxide.
    Type: Application
    Filed: April 27, 2007
    Publication date: April 23, 2009
    Applicant: Nippon Sheet Glass Company, Limited
    Inventors: Kosuke Fujiwara, Akihiro Koyama, Hiroshi Kambayashi
  • Patent number: 7521387
    Abstract: A sealant composition for use in sealing solid oxide fuel cells is provided which comprises a glass component which comprises a mixture of alkali-free inorganic oxides, and an optional filler component dispersed in the glass component, said filler component being up to 40% by weight of the composition. The glass component can include, on a mole basis, 20 to 50% BaO, 1 to 10% Y2O3, 5 to 20% B2O3, 10 to 30% SiO2, 3 to 35% MgO, 2 to 20% CaO, 1 to 10% ZnO, and 0 to 5% ZrO2, and exemplary filler components include zirconia, alumina, barium titanate, strontium titanate, and combinations thereof.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: April 21, 2009
    Assignee: General Electric Company
    Inventors: Liang A. Xue, Jean Yamanis, James Piascik, Estela T. Ong
  • Patent number: 7514093
    Abstract: A vitreous antimicrobial agent that can exhibit excellent antimicrobial properties when added to various types of resins, that has excellent discoloration resistance and hot water resistance, and that can easily be produced at a commercial scale. The vitreous antimicrobial agent includes, relative to 100 mass % of total glass components, 0.1 to 2 mass % of Ag2O, 40.5 to 49 mass % of ZnO, 6 to 9.5 mass % of SiO2, 30.5 to 39.5 mass % of B2O3, 2 to 10 mass % of an alkaline earth metal oxide, and 6 to 7.5 mass % of Na2O; the vitreous antimicrobial agent comprising, in addition to these, 0.01 to 5 mass % of CeO2 as necessary. An antimicrobial resin composition and an antimicrobial product including the vitreous antimicrobial agent.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: April 7, 2009
    Assignee: Toagosei Co., Ltd.
    Inventor: Koji Sugiura
  • Publication number: 20090088310
    Abstract: There is provided an optical glass with a high refractive index and a low dispersion having a refractive index (nd) of not less than 1.75 and an Abbe's number (?d) of not less than 35 where the image formation characteristic is hardly affected by changes in temperature of the using environment. SiO2, B2O3 and La2O3 are contained as essential components and the ratio of the constituting components are adjusted whereby an optical glass in which a product of ? and ? where ? is an average linear expansion coefficient at ?30 to +70° C. and ? is an optical elasticity constant at the wavelength of 546.1 nm is not more than 130×10?12° C.?1×nm×cm?1×Pa?1 is able to be achieved.
    Type: Application
    Filed: April 10, 2008
    Publication date: April 2, 2009
    Applicant: OHARA INC.
    Inventors: Junko SUZUKI, Michiko OGINO, Msahiro ONOZAWA
  • Publication number: 20090075806
    Abstract: 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: Application
    Filed: November 19, 2008
    Publication date: March 19, 2009
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Kenji IMAKITA, Naoki Sugimoto
  • Publication number: 20090069166
    Abstract: Optical glass having a refractive index (nd) of 1.85 or greater, and an Abbe number (?d) falling within the range of 10 to 30, which is suited for molding by precision mold press is provided. The optical glass is characterized by including B2O3+SiO2 in an amount of 3 to 60%, Bi2O3 in an amount of 25 to 80%, RO+Rn2O in an amount of 5 to 60% (wherein R represents one or more selected from a group consisting of Zn, Ba, Sr, Ca, and Mg; and Rn represents one or more selected from a group consisting of Li, Na, K, and Cs), with each component in the range expressed in oxide-based mole percentage, and is characterized in that transparency in the visible region is high, and that the transition point (Tg) is 480° C. or lower. The optical glass is characterized by having a spectral transmittance of 70% or greater at a wavelength of 600 nm for a thickness of 10 mm.
    Type: Application
    Filed: April 27, 2006
    Publication date: March 12, 2009
    Inventor: Jie Fu
  • Publication number: 20090069165
    Abstract: Optical glass having a refractive index (nd) of 1.75 or greater, and an Abbe number (?d) falling within the range of 15 to 40, which is suitable for molding by precision mold press is provided. The optical glass is characterized by including B2O3+SiO2 in an amount of 10 to 70%, Bi2O3 in an amount of 5% or more and less than 25%, RO+Rn2O in an amount of 5 to 60% (wherein R represents one or more selected from a group consisting of Zn, Ba, Sr, Ca, and Mg; and Rn represents one or more selected from a group consisting of Li, Na, K, and Cs), with each component in the range expressed in oxide-based mole, and is characterized in that transparency in the visible region is high, and that the transition point (Tg) is 520° C. or lower. The optical glass is characterized by having a spectral transmittance of 70% or greater at a wavelength of 550 nm, for a thickness of 10 mm.
    Type: Application
    Filed: April 27, 2006
    Publication date: March 12, 2009
    Inventor: Jie Fu
  • Patent number: 7501001
    Abstract: Abrasive particles and methods of making the same. Embodiments of the invention can be used to make abrasive particles. The abrasive particles can be incorporated into a variety of abrasive articles, including bonded abrasives, coated abrasives, nonwoven abrasives, and abrasive brushes.
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: March 10, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Anatoly Z. Rosenflanz, Ahmet Celikkaya, Thomas J. Anderson
  • Patent number: 7501369
    Abstract: 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: Grant
    Filed: July 16, 2007
    Date of Patent: March 10, 2009
    Assignee: Hoya Corporation
    Inventor: Kazuo Tachiwana
  • Patent number: 7490485
    Abstract: An optical glass whose refractive index is high and whose coloring is decreased comprising, by weight %, 2 to 45% of B2O3, 0 to 30% of SiO2 provided that the content of B2O3>the content of SiO2, 10 to 50% of La2O3, 0 to 30% of TiO2, 0 to 15% of ZnO, 0 to 15% of ZrO2, 0 to 35% of Nb2O5, 0 to 35% of BaO, 0 to 5% of SrO, 0% or more but less than 8% of CaO, 0% or more but less than 13% of MgO, provided that the total content of BaO, SrO, CaO and MgO is 0 to 40%, 0 to 20% of Gd2O3, 0 to 15% of Y2O3, 0 to 18% of Ta2O5, 0% or more but less than 0.5% of WO3, 0% or more but less than 1.5% of a total of Na2O, K2O and Li2O, 0 to 10% of GeO2, 0 to 20% of Bi2O3, 0 to 10% of Yb2O3, 0 to 10% of Al2O3, 0% or more but less than 2% of Sb2O3 and 0 to 1% of SnO2.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: February 17, 2009
    Assignee: Hoya Corporation
    Inventor: Michio Endo
  • Patent number: 7491667
    Abstract: Provided are optical glasses having a refractive index (nd) of over 1.82 but not more than 1.86 and an Abbe's number (?d) of 30 to 39.5 and having the property of low-temperature softening that permits precision press-molding, one is an optical glass comprising B2O3, La2O5, Gd2O3 and ZnO as essential components, comprising Li2O and SiO2 as optional components, provided that the content of SiO2 is less than 2% by weight when Li2O is contained, having a refractive index (nd) of over 1.82 but not more than 1.86 and an Abbe's number (?d) of 30 to 39.5 and having a glass transition temperature (Tg) of 630° C. or lower, and the other is an optical glass comprising, by % by weight, 14 to 30% of B2O3, 10 to 40% of La2O3, 1 to 30% of Gd2O3 and 6 to 26% of ZnO as essential components, and comprising, as optional components, predetermined amounts of WO3, Ta2O5, Nb2O5, TiO2, SiO2, Li2O, Na2O, K2O, MgO, CaO, SrO, BaO, Y2O3, Yb2O3, ZrO2, Bi2O3 and Sb2O3 and having a refractive index (nd) of over 1.82 but not more than 1.
    Type: Grant
    Filed: March 17, 2005
    Date of Patent: February 17, 2009
    Assignee: Hoya Corporation
    Inventor: Kazutaka Hayashi
  • Publication number: 20090042715
    Abstract: An object of the present invention is to provide a lead-free bismuth glass wherein decrease of the degree of accuracy of the patterning is prevented. Specifically, the present invention provides a lead-free bismuth glass characterized in that said lead-free bismuth glass is used for an optical patterning glass material which is patterned by light irradiation and the optical-absorption coefficient to light with a wavelength of 365 nm is 300 to 3000 cm?1.
    Type: Application
    Filed: May 26, 2006
    Publication date: February 12, 2009
    Inventors: Ichiro Uchiyama, Tomoyuki Taguchi, Ikuo Kuriyama, Hisashi Matsuno, Keiichiro Hayakawa
  • Publication number: 20090042711
    Abstract: [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: Application
    Filed: August 5, 2008
    Publication date: February 12, 2009
    Applicant: HOYA CORPORATION
    Inventors: Xuelu Zou, Yasuhiro Fujiwara, Yoshio Nojima
  • Patent number: 7482296
    Abstract: The invention is directed to an aluminoborosilicate glass containing alkali metals for the production of optical components with refractive index gradients which are generated by ion exchange of monovalent metal ions in a base glass comprising at least silicon oxide, boron oxide, aluminum oxide and an alkali metal oxide, particularly for the production of gradient index lenses (GRIN lenses).
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: January 27, 2009
    Assignee: Grintech GmbH
    Inventors: Bernhard Messerschmidt, Christian Ruessel, Sandra Hornschuh, Torsten Possner, Ulf Possner
  • Publication number: 20090017196
    Abstract: To provide a process for producing an electrode-formed glass substrate, which increases the strength of a front substrate of a plasma display device. Electrodes formed on a glass substrate are covered with a lead-free glass comprising, as represented by mass %, from 30 to 50% of B2O3, from 21 to 25% of SiO2, from 10 to 35% of ZnO, from 7 to 14% in total of K2O and either one or both of Li2O and Na2O, from 0 to 10% of Al2O3, from 0 to 10% of ZrO2, and from 0 to 5% of MgO+CaO+SrO+BaO, and when the molar fractions of Li2O, Na2O and K2O are represented by l, n and k, respectively, l is at most 0.025, and l+n+k is from 0.07 to 0.13.
    Type: Application
    Filed: June 12, 2008
    Publication date: January 15, 2009
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Satoshi FUJIMINE, Hitoshi Onoda, Kenji Imakita, Yasuko Osaki, Hiroyuki Yamamoto
  • Publication number: 20090004369
    Abstract: A conductor paste for a ceramic substrate contains a) a conductive metal powder comprising a silver powder and a palladium powder; b) a glass powder; and c) an organic solvent, wherein the conductive metal powder has an average particle diameter of not more than 1.2 ?m, and the glass powder is a Bi2O3—SiO2—B2O3 type glass powder, and the content of the glass powder is in a range of from 1 to 6 wt % based on the weight of the paste.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 1, 2009
    Inventors: Akira Inaba, Naoto Nakajima
  • Publication number: 20090004366
    Abstract: To provide a process for producing an electrode-formed glass substrate, which is capable of suppressing warpage without lowering the strength of a front substrate of a plasma display device. Electrodes formed on a glass substrate are covered with a lead-free glass comprising, as represented by mass %, from 30 to 50% of B2O3, more than 25% and at most 35% of SiO2, from 10 to 25% of ZnO, from 7 to 19% in total of K2O and either one or both of Li2O and Na2O, from 0 to 5% of Al2O3, from 0 to 5% of MgO+CaO+SrO+BaO, and when the molar fractions of Li2O, Na2O and K2O are represented by l, n and k, respectively, l is at most 0.025, and l+n+k is from 0.07 to 0.17.
    Type: Application
    Filed: June 4, 2008
    Publication date: January 1, 2009
    Applicant: ASAHI GLASS COMPANY LIMITED
    Inventors: Hitoshi ONODA, Satoshi FUJIMINE, Kenji IMAKITA, Yasuko OSAKI, Hiroyuki YAMAMOTO
  • Patent number: 7468338
    Abstract: A high-refractivity low-dispersion optical glass that gives press-molding preforms excellent in high-temperature shapability and suitable for precision press-molding, including an optical glass comprising B2O3, La2O3, Gd2O3 and ZnO as essential components, substantially containing none of lead and fluorine, having a refractive index (nd) of 1.72 to 1.83, an Abbe's number (?d) of 45 to 55 and a glass transition temperature (Tg) of 630° C. or lower and having a viscosity of at least 0.6 Pa·s at its liquidus temperature, and an optical glass comprising, by mol %, 45 to 65% of B2O3, 5 to 22% of La2O3, 1 to 20% of Gd2O3, provided that the total content of La2O3 and Gd2O3 is 14 to 30%, 5 to 30% of ZnO, 0 to 10% of SiO2, 0 to 6.5% of ZrO2 and 0 to 1% of Sb2O3, substantially containing none of lead and fluorine, and having a refractive index (nd) of 1.72 to 1.83 and an Abbe's number (?d) of 45 to 55.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: December 23, 2008
    Assignee: Hoya Corporation
    Inventors: Kazutaka Hayashi, Yasuhiro Fujiwara, Zou Xuelu
  • Publication number: 20080300125
    Abstract: 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: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Inventors: Silke Wolff, Ute Woelfel, Gordon Kissl
  • Publication number: 20080300126
    Abstract: The low melting solder glass contains, in wt. % on an oxide basis, >1-2, SiO2; 5-10, B2O3; 4.5-12, ZnO; 79-88, Bi2O3; and 0.6-2, Al2O3, and a weight ratio of SiO2 to Al2O3 of <2. The solder glass preferably contains from 80.5 to 85 wt. % of Bi2O3 and is free of lead. This solder glass has a linear thermal expansion coefficient ?(20-300) of <11.5×10?6/K and a transformation temperature Tg of <380° C. A solder glass preparation for connecting or sealing a glass part with a metal part contains the low melting solder glass and up to 20 wt. % of ?-eukryptite, cordierite, mullite, willemite or zircon.
    Type: Application
    Filed: May 29, 2008
    Publication date: December 4, 2008
    Inventors: Dieter Goedeke, Peter Brix
  • Patent number: 7419540
    Abstract: A swellable layer silicate is described based on smectite or sepiolite/palygorskite for use in media containing di- or polyvalent cations that reduce swellability, characterized by a swelling volume of about 5 to 50 mL, measured by addition of 2 g layer silicate (air-dried) to 100 mL water, and by a fineness of maximum 5 wt. % >40 ?m and maximum 20% >20 ?m, as dry sieve residue.
    Type: Grant
    Filed: August 29, 2001
    Date of Patent: September 2, 2008
    Assignee: Sud-Chemie AG
    Inventors: Markus Möller, Helmut Coutelle, Robert Warth, Wolfgang Heininger
  • Publication number: 20080207427
    Abstract: The object of the present invention is to provide an optical glass which has optical constants such as a refractive index of from 1.45 to 1.65 and an Abbe number of at least 65 and which is yet excellent in chemical durability. A phosphate optical glass comprising, as glass components by mass %, from 73 to 85 of P2O5, from 14 to 26 of Al2O3, from 1 to 12 of K2O+Li2O, from 0 to 12 of SiO2, from 0 to 12 of B2O3, from 0 to 12 of Na2O, from 0 to 12 of Y2O3, from 0 to 12 of La2O3, from 0 to 12 of MgO+CaO+SrO+BaO, from 0 to 10 of ZrO2+TiO2+Gd2O3, from 0 to 10 of Ta2O5+GeO2+Ga2O3+Nb2O5+WO3+TeO2, from 0 to 2 of Sb2O3, and from 0 to 12 of ZnO+PbO.
    Type: Application
    Filed: April 28, 2008
    Publication date: August 28, 2008
    Applicant: Asahi Glass Company, Limited
    Inventors: Hiroyuki Ohkawa, Naoki Sugimoto
  • Publication number: 20080185962
    Abstract: Lead-free acid-resistant glass composition includes 5-25% of SiO2, 4-30% of B2O3, 7-30% of ZnO, 15-70% of Bi2O3, 0-15% of Al2O3, 5-20% of BaO in weight percentage, and being substantially lead-free.
    Type: Application
    Filed: February 1, 2008
    Publication date: August 7, 2008
    Applicant: NORITAKE CO., LIMITED
    Inventors: Yuko Kato, Makiko Imai
  • Patent number: 7407902
    Abstract: A Bismuth glass composition including 0.5 to 14 wt % of SiO2, 3 to 15 wt % of B2O3, 4 to 22 wt % of ZnO, 55 to 90 wt % of Bi2O3 and 4 wt % or less of Al2O3, and further including 5 wt % or less of an oxide of Group A, 12 wt % or less of an oxide of Group B and 0.1 to 10 wt % of an oxide of Group C, wherein the oxide of Group A is at least one selected from the group consisting of Li2O, Na2O and K2O, the oxide of Group B is at least one selected from the group consisting of MgO, CaO, SrO and BaO, and the oxide of Group C is at least one selected from the group consisting of Sc2O3, Y2O3, La2O3, CeO2, Pr2O3, Nd2O3, Sm2O3, Eu2O3, Gd2O3, Tb2O3, Dy2O3, Ho2O3, Er2O3, Tm2O3, Yb2O3 and Lu2O3.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: August 5, 2008
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinya Hasegawa, Hiroshi Onishi, Mikie Kanai, Tetsuya Kamimoto
  • Patent number: 7399720
    Abstract: A glass composition for use as a sealant or otherwise bonded to a fuel cell component, including from about 40 mol % to about 60 mol % RO; from about 2 mol % to about 10 mol % M2O3; and from about 35 mol % to about 45 mol % SiO2. R is selected from the group including strontium, calcium, magnesium and zinc and combinations thereof. M is selected from the group including aluminum, boron, lanthanum, iron and combinations thereof. The glass includes at least about 5 mol % ZnO. Upon heat treatment, the glass at least partially crystallizes with the formation of at least one alkaline earth-zinc pyrosilicate crystalline phases.
    Type: Grant
    Filed: October 15, 2004
    Date of Patent: July 15, 2008
    Inventors: Richard K. Brow, Signo Tadeu Dos Reis, Glen Benson
  • Publication number: 20080161178
    Abstract: The invention relates to a method for producing glass-coated electronic components and the use of the method for passivating electronic components.
    Type: Application
    Filed: December 21, 2007
    Publication date: July 3, 2008
    Inventors: Joern Besinger, Peter Brix, Oliver Fritz
  • Publication number: 20080139376
    Abstract: 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: Application
    Filed: December 5, 2007
    Publication date: June 12, 2008
    Inventors: Thorsten Doehring, Ina Mitra
  • Patent number: 7368404
    Abstract: An optical glass having a refractive index (nd) and Abbe number (?d) within a range enclosed with a border line consisting of straight lines connecting point A (nd being 1.75 and ?d being 50.0), point B (nd being 1.80 and ?d being 46.0), point C (nd being 1.80 and ?d being 50.0) and point D (nd being 1.75 and ?d being 56.0) in the order of the point A, the point B, the point C, the point D and the point A in x-y rectangular coordinates in which x coordinate represents Abbe number (?d) and y coordinate represents refractive index (nd), including refractive index (nd) and Abbe number (?d) on the border line except for the straight line connecting the point A with the point D and the straight line connecting the point B with the point C, containing, as essential components, SiO2, B2O3, La2O3, Gd2O3, Li2O and F, and being substantially free of As2O3.
    Type: Grant
    Filed: October 26, 2004
    Date of Patent: May 6, 2008
    Assignee: Kabushiki Kaisha Ohara
    Inventor: Susumu Uehara
  • Patent number: 7341967
    Abstract: The present invention provides a novel glass material that allows the production of a glass product having both excellent chemical durability and high precision by a press molding method. Specifically, the present invention provides a glass for press molding, comprising 38% to 45% by weight of SiO2, 18% to 27% by weight of B2O3, 16% to 25% by weight of Al2O3, 2% to 12% by weight of ZnO, no more than 3% by weight of MgO, no more than 3% by weight of CaO, no more than 3% by weight of BaO, 13% to 18% by weight of Li2O, no more than 3% by weight of K2O, and no more than 2% by weight of Na2O; wherein the glass has a deformation temperature of 520° C. or lower; and the glass has a water resistance of grade 2 or higher as measured according to the Japanese Optical Glass Industrial Standard method for measuring the chemical durability of an optical glass.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: March 11, 2008
    Assignees: Isuzu Glass Co., Ltd., National Institute of Advanced Industrial Science and Technology
    Inventors: Takaharu Hosokawa, Naoki Kikuchi, Tatsuya Suetsugu, Kazuhisa Kimura, Tadashi Hasegawa, Toshihiko Einishi, Takashi Tarumi, Kohei Kadono
  • Patent number: 7341965
    Abstract: 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: Grant
    Filed: September 7, 2002
    Date of Patent: March 11, 2008
    Assignee: Schott AG
    Inventors: Bianca Schreder, Ruediger Sprengard, Ulrich Peuchert, Martin Letz, Joseph S. Hayden, Sally Pucilowski
  • Patent number: 7335614
    Abstract: An optical glass having a refractive index (nd) and an Abbe number (vd) which are within an area surrounded by the straight lines which are drawn by connecting point A (nd=1.835, vd=46.5), point B (nd=1.90, vd=40.0), point C (nd=1.90, vd=35.0) and point D (nd=1.835, vd=38.0) in a sequence of A, B, C, D and A as border lines in x-y coordinates shown in FIG. 1, in which X-axis is the Abbe number (vd) and Y-axis is the refractive index (nd), the area including the border line. The optical glass has low glass transition temperature (Tg), and suitable for precision mold pressing.
    Type: Grant
    Filed: June 12, 2006
    Date of Patent: February 26, 2008
    Assignee: Kabushiki Kaisha Ohara
    Inventors: Susumu Uehara, Koji Shimizu, Shinya Mashiko
  • Patent number: 7332453
    Abstract: Ceramics (including glasses and glass-ceramics) comprising nitrogen, and methods of making the same.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: February 19, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Anatoly Z. Rosenflanz, Berkan K. Endres, Thomas J. Anderson
  • Patent number: 7326666
    Abstract: Glass for forming barrier ribs for e.g. a plasma display panel, which consists, as represented by mol % based on the following oxides, essentially of from 24 to 50% of SiO2, from 13 to 23% of B2O3, from 10 to 32% of ZnO, from 3 to 20% of Li2O, from 1 to 9% of Na2O, from 1 to 15% of Al2O3, from 0 to 20% of MgO+CaO+SrO+BaO, and from 0 to 9% of Bi2O3, wherein ((B2O3+ZnO)—Al2O3) is at least 24 mol %; in a case where ZrO2 is contained, its content is at most 2 mol %; and neither PbO nor F is contained.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: February 5, 2008
    Assignee: Asahi Glass Company, Limited
    Inventors: Hiroyuki Yamamoto, Satoshi Fujimine, Hitoshi Onoda, Hiroshi Usui
  • Patent number: 7297647
    Abstract: The present invention relates to lead and arsenic free optical glasses, used for the application areas imaging, digital projection, photolithography, laser technology, wafer/chip technology as well as telecommunication, optical communications engineering, optics, illumination and in the automotive sector. The glasses have a refraction power of from 1.73?nd?1.82 and an Abbé value of 43?vd?53 with good chemical consistency and excellent crystallisation stability with the following composition (in weight-%): SiO2 0.1-5.5 B2O3 27-35 La2O3 42-48 BaO 0-5 ZnO 0.5-5?? Y2O3 ?6-12 TiO2 0-4 ZrO2 ?4-10 Nb2O5 0-5 WO3 ?0-5.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: November 20, 2007
    Assignee: Schott AG
    Inventors: Silke Wolff, Karl Mennemann, Ute Woelfel
  • Patent number: 7297646
    Abstract: Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) REO, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the present invention can be made, formed as, or converted into optical waveguides, glass beads, articles (e.g., plates), fibers, particles (e.g., abrasive particles), and thin coatings.
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: November 20, 2007
    Assignee: 3M Innovative Properties Company
    Inventors: Anatoly Z. Rosenflanz, Craig R. Schardt
  • Publication number: 20070179038
    Abstract: An optical glass has optical constants of a refractive index (nd) within a range from 1.73 to less than 1.80 and an Abbe number (?d) within a range from 43 to 55, comprises SiO2, B2O3, Y2O3, La2O3, ZnO and Li2O as essential components, is substantially free of lead component, arsenic component and fluorine component, has a ratio of SiO2/B2O3 of 0.30 to 1.55 and a ratio of Y2O3/La2O3 of 0.15 to 1.00, and has a glass transition temperature (Tg) of 620° C. or below.
    Type: Application
    Filed: January 31, 2007
    Publication date: August 2, 2007
    Applicant: OHARA INC.
    Inventor: Susumu UEHARA
  • Patent number: 7247987
    Abstract: Disclosed is a rear plate of a plasma display panel. In the rear plate, a dielectric layer or a barrier wall layer is formed by forming slurry in a tape of a green tape and then attaching the green tape to upper surfaces of electrodes and a glass substrate. Therefore, a PDP employing a rear plate according to the present invention has superior electric and optical characteristics.
    Type: Grant
    Filed: December 9, 2002
    Date of Patent: July 24, 2007
    Assignee: LG Micron Ltd.
    Inventor: Jae-Chil Seo
  • Patent number: 7232779
    Abstract: Provided are optical glass exhibiting a refractive index (nd) in a range of 1.75 to 1.87, an Abbé number (?d) in a range of 80 to 45, and excellent low-temperature softening properties even when not incorporating Th2O5 as well as permitting a low production cost; a precision press molding preform and an optical element comprised of such glass; a method of manufacturing the preform; and a method of manufacturing the optical element. The optical glass comprises, in a molar percent, 30 to 45 percent of B2O3, 2 to 15 percent of SiO2, 10 to 20 percent of La2O3, 1 to 10 percent of TiO2, 10 to 30 percent of ZnO, 2 to 15 percent of Li2O, higher than 0 percent and 10 percent or less of WO3, 0 to 15 percent of Nb2O5, and 0 to 10 percent of ZrO2, wherein the total amount of the above-mentioned components is higher than 95 percent, the glass exhibits a refractive index (nd) in a range of 1.75 to 1.87, and an Abbé number (?d) in a range of 80 to 45.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: June 19, 2007
    Assignee: Hoya Corporation
    Inventors: Yoshiko Kasuga, Xuelu Zou
  • Patent number: 7208430
    Abstract: A glass composition for covering electrodes of the present invention contains: 0 to 15 wt % SiO2; 10 to 50 wt % B2O3; 15 to 50 wt % ZnO; 0 to 10 wt % Al2O3; 2 to 40 wt % Bi2O3; 0 to 5 wt % MgO; 5 to 38 wt % CaO+SrO+BaO; 0 to 0.1 wt % Li2O+Na2O+K2O; 0 to 4 wt % MoO3; and 0 to 4 wt % WO3, and the total of the contents of MoO3 and WO3 is in the range of 0.1 to 8 wt %. The glass composition for covering electrodes of the present invention may contain: 0 to 2 wt % SiO2; 10 to 50 wt % B2O3; 15 to 50 wt % ZnO; 0 to 10 wt % Al2O3; 2 to 40 wt % Bi2O3; 0 to 5 wt % MgO; 5 to 38 wt % CaO+SrO+BaO; 0 to 4 wt % MoO3; and 0 to 4 wt % WO3, and the total of the contents of MoO3 and WO3 may be in the range of 0.1 to 8 wt %.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: April 24, 2007
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Shinya Hasegawa, Osamu Inoue, Seiji Toyoda
  • Patent number: 7166549
    Abstract: The invention relates to an antimicrobial, anti-inflammatory and disinfecting glass, whereby the glass comprises: 30–95 wt. % SiO2,0–40 wt. % Na 2O, 0–40 wt. % K2O, 0–40 wt. % Li2O, 0–35 wt. % CaO, 0–10 wt. % MgO, 0–10 wt. % Al2O3, 0–15 wt. % P2O5 wt. % B2O3?, 0–10 wt. % NaF, 0–10 wt. % LiF, 0–10 wt. % KF, 0–10 wt. % CaF2, 0–5 wt. % Ag2O, 0–10 wt. % MgF2,0–2 wt. % Fe2O3and 0–10 wt. % XJy, where X?Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, Ag or Zn and y=1 or y=2 and the sum of XJy> is 10 ppm.
    Type: Grant
    Filed: August 17, 2002
    Date of Patent: January 23, 2007
    Assignee: Schott AG
    Inventors: Jorg Hinrich Fechner, José Zimmer
  • Patent number: 7144834
    Abstract: The invention concerns an optical colored glass with a composition (in percent by weight based on oxide) of SiO2 30–75; K2O 5–35; B2O3>4–17; ZnO 5–37; F 0.01–10; CdO 0.1–1, S+Se+Te 0.1–1.5 as well as the use of this glass as a long-pass cutoff filter.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: December 5, 2006
    Assignee: Schott AG
    Inventors: Rolf Clasen, Monika Gierke, Jochen Freund, Magdalena Winkler-Trudewig, Uwe Kolberg
  • Patent number: 7141522
    Abstract: Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) Y2O3, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the present invention can be made, formed as, or converted into optical waveguides, glass beads, articles (e.g., plates), fibers, particles (e.g., abrasive particles), and thin coatings.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: November 28, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Anatoly Z. Rosenflanz, Craig R. Schardt
  • Patent number: 7141523
    Abstract: Ceramics comprising (i) at least one of Nb2O5 or Ta2O5 and (ii) at least two of (a) Al2O3, (b) REO, or (c) at least one of ZrO2 or HfO2. Embodiments of ceramics according to the present invention can be made, formed as, or converted into optical waveguides, glass beads, articles (e.g., plates), fibers, particles (e.g., abrasive particles), and thin coatings.
    Type: Grant
    Filed: September 18, 2003
    Date of Patent: November 28, 2006
    Assignee: 3M Innovative Properties Company
    Inventors: Anatoly Z. Rosenflanz, Craig R. Schardt
  • Patent number: 7138348
    Abstract: An optical glass has optical constants which are an refractive index (nd) of 1.70–1.75 and an Abbe number (vd) of 45.0–54.0; a glass transformation temperature (Tg) of 500–580° C. The glass has the following composition in mass percent of: SiO2 more than 5–15%; B2O3 20-less than 30%; a total amount of SiO2+B2O3 more than 25–40%; La2O3 more than 21-less than 30%; Y2O3 more than 5–15%; Gd2O3 0-less than 10%; ZrO2 1–8%; Nb2O5 0.1–5%; Ta2O5 more than 5–12%; a total amount of ZrO2+Nb2O5+Ta2O5 7–20%; ZnO 0–10%; CaO 0–10%; SrO 0–5%; BaO 0–10%; a total amount of ZnO+CaO+SrO+BaO 5–15%; Li2O 1–8%; Sb2O3 0–1%; and As2O3 0–1%. The glass is substantially free of Yb2O3 and Al2O3. Devitrification is not generated when the optical glass is kept at a temperature of 920° C. for two hours.
    Type: Grant
    Filed: December 10, 2003
    Date of Patent: November 21, 2006
    Assignee: Kabushiki Kaisha Ohara
    Inventor: Susumu Uehara
  • Patent number: 7138349
    Abstract: An optical glass having a refractive index (nd) and an Abbe number (vd) which are within an area surrounded by the straight lines which are drawn by connecting point A (nd=1.835, vd=46.5), point B (nd=1.90, vd=40.0), point C, (nd=1.90, vd=35.0) and point D (nd=1.835, vd=38.0) in a sequence of A, B, C, D and A as border lines in x-y coordinates shown in FIG. 1, in which X-axis is the Abbe number (vd) and Y-axis is the refractive index (nd), the area including the border line. The optical glass has low glass transition temperature (Tg), and suitable for precision mold pressing. The optical glass which has the refractive index (nd) and Abbe number (vd) within the above-described area, where the area includes the border lines, has the composition of SiO2—B2O3—La2O3—Gd2O3—Li2O—F system, the transition temperature (Tg) of 550 to 650° C., and is free from lead, cadmium, thorium, Y2O3, P2O5 and TeO2.
    Type: Grant
    Filed: December 12, 2003
    Date of Patent: November 21, 2006
    Assignee: Kabushiki Kaisha Ohara
    Inventors: Susumu Uehara, Koji Shimizu, Shinya Mashiko
  • Patent number: 7102242
    Abstract: The lead-free glass tubing of the SiO2—B2O3—R2O—BaO—ZnO—TiO2 system has a composition, in percent by weight on an oxide basis, consisting essentially of: SiO2, 34 to 52; B2O3, 10 to 25; Al2O3, 0 to 25; Li2O, 2 to 6; Na2O, 4 to 10; K2O, 2 to 6; CaO, 0 to 4; BaO, 1 to 5; ZnO, 4 to 12; TiO2, 2 to 6, and at least one refining agent in an effective amount for refining. An encapsulated diode consisting of a diode encapsulated with this lead-free glass tubing is also disclosed.
    Type: Grant
    Filed: January 18, 2005
    Date of Patent: September 5, 2006
    Assignee: Schott AG
    Inventors: Peter Brix, Helmar Vetter, Oliver Fritz