Glass Compositions, Compositions Containing Glass Other Than Those Wherein Glass Is A Bonding Agent, Or Glass Batch Forming Compositions Patents (Class 501/11)
  • Patent number: 10239785
    Abstract: The present invention relates to a cementitious composition adapted to form mortars or cements comprising glass as an additive having reduced tendency to reaction with alkali, characterized in that said glass is obtained by grinding and subsequent washing with water.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: March 26, 2019
    Assignee: ITALCEMENTI S.P.A.
    Inventors: Antonio Princigallo, Stefano Cangiano
  • Patent number: 9016092
    Abstract: A glass for a magnetic recording medium substrate permitting the realization of a magnetic recording medium substrate affording good chemical durability and having an extremely flat surface, a magnetic recording medium substrate comprised of this glass, a magnetic recording medium equipped with this substrate, and methods of manufacturing the same. The glass is an oxide glass not including As or F.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: April 28, 2015
    Assignee: Hoya Corporation
    Inventors: Yoichi Hachitani, Kinobu Osakabe
  • Patent number: 9012047
    Abstract: The shape and number of surface defects are controlled so that the occurrence of failure is suppressed in an HDD device in which a magnetic head with a very small flying height, such as a DFH head, is mounted. A magnetic disk substrate is characterized in that when laser light with a wavelength of 405 nm and a laser power of 25 mW is irradiated with a spot size of 5 ?m and scattered light from the substrate is detected, the number of defects detected to have a size of 0.1 ?m to not more than 0.3 ?m is less than 50 per 24 cm2 and, with respect to the defects, there is no defect in which, in a bearing curve obtained by a bearing curve plot method using an atomic force microscope, a portion from an apex of the defect to 45% thereof is located in an area of defect height higher than a virtual line connecting from the apex of the defect to 45% thereof.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: April 21, 2015
    Assignee: Hoya Corporation
    Inventors: Kouji Kitsunai, Hiroshi Takeda, Yukari Senda
  • Publication number: 20150093581
    Abstract: An object is to devise a tempered glass substrate that has high mechanical strength and hardly undergoes breakage even though having a large size. A tempered glass substrate has a compressive stress layer in a surface thereof, and includes 1 piece/cm3 or less of devitrified stones containing Zr.
    Type: Application
    Filed: December 4, 2014
    Publication date: April 2, 2015
    Inventors: Takashi MURATA, Takako TOJYO, Motokazu OGATA
  • Publication number: 20150080205
    Abstract: A device for forming a glass semi-product loaded in a die set is comprised of: a first chamber enclosing a heating zone, a waiting zone and a cooling zone arranged in a row along a first direction and being controllable of an atmosphere in the first chamber; a second chamber in spatial communication with the first chamber and closable so as to keep vacuum in the second chamber, the second chamber so neighboring on the waiting zone as to receive the die set moving from the waiting zone in a second direction perpendicular to the first direction; and a ram disposed in the second chamber and movable to get contact with the die set and carry out press-forming on the glass semi-product in the vacuum kept in the second chamber.
    Type: Application
    Filed: September 12, 2014
    Publication date: March 19, 2015
    Inventor: Isao MATSUZUKI
  • Publication number: 20150079347
    Abstract: A glass sheet has one surface and the other surface facing the one surface in a thickness direction, wherein a fluorine concentration (average fluorine concentration by SIMS at a depth of 1 to 24 ?m) in the one surface is higher than that in the other surface. The following expression is satisfied: 0.07??F/?H2O. ?F (mol %) is a value obtained by subtracting an average fluorine concentration in the surface having the lower fluorine concentration from that in the surface having the higher fluorine concentration, and ?H2O (mol %) is an absolute value of a value obtained by subtracting an average H2O concentration in the surface having the higher fluorine concentration from that in the surface having the lower fluorine concentration.
    Type: Application
    Filed: September 26, 2014
    Publication date: March 19, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Satoshi MIYASAKA, Hideko NAKADA, Yasuo HAYASHI, Makoto FUKAWA, Toshifumi NIHEI, Masanobu SHIRAI, Naoki OKAHATA, Koji NAKAGAWA, Kazuhiko YAMANAKA, Kunio WATANABE, Shiro TANII, Nobuaki IKAWA, Daisuke KOBAYASHI, Junichi MIYASHITA, Ryosuke KATO
  • Publication number: 20150064411
    Abstract: A front glass plate for a stacked structure includes greater than or equal to 5 mol % of Al2O3, in terms of an oxide, as a component, 50% crack initiation load of the front glass plate being greater than or equal to 0.5 kg.
    Type: Application
    Filed: November 11, 2014
    Publication date: March 5, 2015
    Applicant: Asahi Glass Company, Limited
    Inventors: Jun SASAI, Kazutaka Ono, Tetsuya Nakashima, Keisuke Abe, Yasuyuki Kameyama, Nana Sato, Yasumasa Kato, Masao Fukami, Kazuhiko Mitarai
  • Patent number: 8969225
    Abstract: A method includes a providing a molten glass fiber core and disposing a plurality of nanoparticles that include a transition metal oxide on the molten glass fiber core at or above the softening temperature of the glass fiber core, thereby forming a nanoparticle-laden glass fiber. The plurality of nanoparticles are embedded at the surface of said glass fiber core. A method includes providing a mixture of molten glass and a plurality of nanoparticles. The plurality of nanoparticles include a transition metal. The method further includes forming nanoparticle-laden glass fibers, in which the plurality of nanoparticles are embedded throughout the glass fibers.
    Type: Grant
    Filed: July 29, 2010
    Date of Patent: March 3, 2015
    Assignee: Applied Nano Structured Soultions, LLC
    Inventors: Tushar K. Shah, Harry C. Malecki
  • Publication number: 20150045204
    Abstract: An aspect of the present invention relates to optical glass, which is oxide glass, having a refractive index nd ranging from 1.95 to 2.50 and an Abbé number ?d ranging from 18 to 40, including essential components in the form of Si4+, B3+, La3+, Ti4+, Nb5+, and at least one from among Gd3+, Y3+, and Yb3+, including, denoted as cation %, 1 to 30% of Si4+, 1 to 50% of B3+, wherein a total of Si4+ and B3+ ranges from 5 to 55%, a total of 11 to 70% of La3+, Gd3+, Y3+, and Yb3+, with 10 to 50% of La3+, a total of 23 to 70% of Ti4+, Nb5+, Ta5+, and W6+, with equal to or greater than 1% of Nb5+ and greater than 22% of Ti4+.
    Type: Application
    Filed: February 25, 2013
    Publication date: February 12, 2015
    Applicant: HOYA CORPORATION
    Inventors: Tomoaki Negishi, Toshiyuki Nishikawa
  • Publication number: 20150010720
    Abstract: A colored glass, a surface of which is roughened in whole or in part. In the colored glass, an average value of gloss values measured at 9 points in the surface thereof at an incident angle of 60° in accordance with JIS 28741 (1991) is 30 or less, a ratio of a difference between a maximum gloss value and a minimum gloss value to the maximum gloss value is 20% or less, and a minimum value of visible-light transmittance at a thickness of 0.8 mm is 70% or less.
    Type: Application
    Filed: July 1, 2014
    Publication date: January 8, 2015
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Yoshitaka SAIJO, Mitsuru WAKATSUKI, Takahiro SAKAGAMI
  • Publication number: 20140378293
    Abstract: The present disclosure discloses a float bath that may enhance spreadability of a poured glass melt when pouring the glass melt, an apparatus for manufacturing a float glass comprising the same, a method for manufacturing a float glass using the float bath, and a float glass produced by the method. The float bath according to the present disclosure receives a metal melt and allows a glass melt poured onto the metal melt to float and move from upstream to downstream, and includes a guiding unit provided at a part where the glass melt is poured, to come into contact with the side of the poured glass melt to guide a sidewise spreading path of the glass melt to expand sidewise spreading of the glass melt.
    Type: Application
    Filed: September 8, 2014
    Publication date: December 25, 2014
    Inventors: Kyoung-Hoon MIN, Ye-Hoon IM, Su-Chan PARK
  • Publication number: 20140363330
    Abstract: Provided herein are methods of enhancing soft tissue integration with and seal around prosthetic devices.
    Type: Application
    Filed: January 14, 2013
    Publication date: December 11, 2014
    Inventor: Takahiro Ogawa
  • Publication number: 20140357467
    Abstract: A drawing method for glass is described. The method provides glass components that have a strongly increased ratio of width to thickness when compared to the preform, which makes the manufacturing of flat glass components more economical. The method purposefully controls the temperature distribution within the preform.
    Type: Application
    Filed: June 3, 2014
    Publication date: December 4, 2014
    Applicant: SCHOTT AG
    Inventors: Frank BUELLESFELD, Ralf BIERTUEMPFEL
  • Publication number: 20140356608
    Abstract: A method for producing bubble-free glasses is provided, in which a glass mixture that is arsenic-free and antimony-free with the exception of any unavoidable raw material impurities and a sulfate compound and SnO2 as refining agents are used. The glass mixture is melted and primarily refined in a first region of a melting tank, an average melting temperature (T1) is set at T1>1560° C. and an average melt residence time (t1) is set at t1>2 hours. The proportion of SO3 resulting from the decomposition of the sulfate compound is reduced to less than 0.002 wt. % as the primary refinement is carried out. A secondary refinement is carried out in a second region of the melting tank, an average melting temperature (T2) is set at T2>1640° C. and an average melt residence time (t2) is set at t2>1 hour.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Inventors: Frank-Thomas LENTES, Karin NAUMANN, Ulrich SCHIFFNER, Friedrich SIEBERS, Christian MUELLER, Klaus SCHOENBERGER, Evelin WEISS
  • Publication number: 20140356609
    Abstract: A method for producing bubble-free glasses is provided, in which a glass mixture that is arsenic-free, antimony-free and tin-free with the exception of any unavoidable raw material impurities and at least one sulfate compound as a refining agent are used. The glass mixture and refining agent are melted and primarily refined in a first region of a melting tank, an average melting temperature (T1) is set at T1>1580° C. and an average melt residence time (t1) is set at t1>2 hours. A secondary refinement is carried out in a second region, an average melting temperature (T2) is set at T2>1660° C. and an average melt residence time (t2) is set at t2>1 hour, and the proportion of the SO3 resulting from decomposition of the sulfate is reduced to less than 0.002 wt. %.
    Type: Application
    Filed: August 20, 2014
    Publication date: December 4, 2014
    Inventors: Frank-Thomas LENTES, Karin NAUMANN, Ulrich SCHIFFNER, Friedrich SIEBERS, Christian MUELLER, Klaus SCHOENBERGER, Evelin WEISS
  • Publication number: 20140349831
    Abstract: The invention relates to new glass formulations with alumina contents greater than 35 mol % and methods for making these glasses. The glass may be a porous glass or a dense glass.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Inventors: Ivan A. Cornejo, Ivar E. Reimanis
  • Patent number: 8871235
    Abstract: The present invention is directed to implantable compositions comprising substantially spherical bioactive glass particles.
    Type: Grant
    Filed: October 24, 2012
    Date of Patent: October 28, 2014
    Assignee: Synergy Biomedical LLC
    Inventor: Mark D. Borden
  • Publication number: 20140305502
    Abstract: A method for producing a glass substrate includes (a) a step of forming molten glass having a temperature T2 less than or equal to 1500° C. on molten tin having an iron concentration greater than or equal to 100 ppm to produce a glass ribbon having a temperature T4 less than or equal to 1100° C. and a logarithm log ? greater than or equal to 8.8, and (b) a step of cooling the glass ribbon to room temperature to produce the glass substrate. The temperature T2 represents a temperature when a logarithm of a viscosity ? (dPa·s) is 2, the temperature T4 represents a temperature when the logarithm of the viscosity ? (dPa·s) is 4, and the logarithm log ? represents a logarithm of a volume resistivity ? (?·cm) at 150° C.
    Type: Application
    Filed: June 27, 2014
    Publication date: October 16, 2014
    Applicant: Asahi Glass Company, Limited
    Inventors: Jun SASAI, Yuki KONDO, Yo NAKAHARA, Kuniaki HIROMATSU, Hideaki HAYASHI
  • Publication number: 20140272215
    Abstract: The embodiments described herein relate to chemically and mechanically durable glass compositions and glass articles formed from the same. According to one embodiment, the glass composition may include greater than or equal to about 68 mol. % SiO2 and less than or equal to about 80 mol. % SiO2; greater than or equal to about 3 mol. % and less than or equal to about 13 mol. % alkaline earth oxide; X mol. % Al2O3, wherein X is greater than or equal to about 4 and less than or equal to about 8; Y mol. % alkali oxide, wherein the alkali oxide comprises Na2O in an amount greater than about 8 mol %; and B2O3, wherein a ratio (B2O3 (mol. %)/(Y mol. %?X mol. %) is greater than 0 and less than 0.3. In some embodiments, the glass composition may be free of phosphorous and compounds of phosphorous.
    Type: Application
    Filed: May 7, 2014
    Publication date: September 18, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Paul Stephen Danielson, Steven Edward DeMartino, Melinda Ann Drake, Robert Michael Morena, Santona Pal, Robert Anthony Schaut
  • Publication number: 20140249014
    Abstract: The present invention relates to a dark neutral gray glass composition with a low transmittance, and a glass formed therefrom, and more specifically, to a dark neutral gray glass composition with a low transmittance and a low color purity, wherein an appropriate amount of Fe2O3, CoO and Se are used as a colorant component, and the FeO content in Fe2O3 and the CoO and Se relative content are delimited by a predetermined range, so as to lower the transmittance of visible rays, solar energy and ultraviolet rays and color purity, thereby protecting privacy in a vehicle, a building and the like, enabling harmony among the various colors thereof, and protecting an interior material and people from ultraviolet rays, and to a glass formed therefrom.
    Type: Application
    Filed: August 2, 2012
    Publication date: September 4, 2014
    Applicant: KCC CORPORATION
    Inventors: Yun Hee Lee, Yong Yi Kim, Jae Chung Lim
  • Publication number: 20140249017
    Abstract: Described herein are alkali-free, boroalumino silicate glasses exhibiting desirable physical and chemical properties for use as substrates in flat panel display devices, such as, active matrix liquid crystal displays (AMLCDs) and active matrix organic light emitting diode displays (AMOLEDs). In accordance with certain of its aspects, the glasses possess excellent compaction and stress relaxation properties.
    Type: Application
    Filed: May 15, 2014
    Publication date: September 4, 2014
    Applicant: Corning Incorporated
    Inventors: Douglas Clippinger Allan, Bradley Frederick Bowden, Adam James Ellison, Timothy James Kiczenski, Marcel Potuzak
  • Publication number: 20140242329
    Abstract: A method of drawing a material into sheet form includes forming a preform comprising at least one material as a large aspect ratio block wherein a first transverse dimension of the preform is much greater than a second transverse dimension substantially perpendicular to the first transverse dimension. A furnace having substantially linearly opposed heating elements one spaced from the other is provided and the heating elements are energized to apply heat to the preform to create a negative thermal gradient from an exterior surface along the first transverse dimension of the preform inward toward a central plane of the preform. The preform is drawn in such a manner that the material substantially maintains its first transverse dimension and deforms across its second transverse dimension.
    Type: Application
    Filed: February 24, 2014
    Publication date: August 28, 2014
    Inventor: Esmaeil Banaei
  • Publication number: 20140221189
    Abstract: A base material for a disk roll including ceramic fibers, an inorganic binder and scaly silica.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 7, 2014
    Applicant: NICHIAS CORPORATION
    Inventors: Kazuhisa WATANABE, Tetsuya MIHARA, Taichi SHIRATORI
  • Publication number: 20140220386
    Abstract: The shape and number of surface defects are controlled so that the occurrence of failure is suppressed in an HDD device in which a magnetic head with a very small flying height, such as a DFH head, is mounted. A magnetic disk substrate is characterized in that when laser light with a wavelength of 405 nm and a laser power of 25 mW is irradiated with a spot size of 5 ?m and scattered light from the substrate is detected, the number of defects detected to have a size of 0.1 ?m to not more than 0.3 ?m is less than 50 per 24 cm2 and, with respect to the defects, there is no defect in which, in a bearing curve obtained by a bearing curve plot method using an atomic force microscope, a portion from an apex of the defect to 45% thereof is located in an area of defect height higher than a virtual line connecting from the apex of the defect to 45% thereof.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: HOYA CORPORATION
    Inventors: Kouji KITSUNAI, Hiroshi Takeda, Yukari Senda
  • Publication number: 20140212649
    Abstract: Provided is a tempered glass substrate formed by a float method, comprising a bottom surface and a top surface, wherein a compression stress value of the bottom surface is larger than a compression stress value of the top surface.
    Type: Application
    Filed: August 29, 2012
    Publication date: July 31, 2014
    Inventors: Hiroki Katayama, Masashi Tabe, Takuji Oka
  • Publication number: 20140206523
    Abstract: The present disclosure relates to high purity nickel molds for use in forming three dimensional glass substrates, along with methods of making three dimensional glass substrates. The mold compositions minimize imperfections in the formed glass substrates providing optical quality shaped glass articles for use in electronics applications.
    Type: Application
    Filed: January 17, 2014
    Publication date: July 24, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Kristen Marie Horn, David Myron Lineman, Kevin Thomas Morris, Wenchao Wang
  • Publication number: 20140162863
    Abstract: Glasses are described which have characteristics that produce high visible transmittance, low solar transmittance, and high selectivity. The glasses can also preferably have a blue-green color. A number of advantageous formulations are described.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Darryl J. Costin, Harold Haller, Clarence Martin, Yuki Kondo, Yuya Shimada, Jun Sasai
  • Publication number: 20140152914
    Abstract: A high optical transmittance glass for use in electronic touch screen applications is disclosed. The glass materials are principally directed to use in frustrated total internal reflection applications. The glass compositions are composed of either low concentrations of light-absorbing compounds or have low levels of scattering centers to minimize the amount of light attenuation as the light propagates through the material.
    Type: Application
    Filed: November 26, 2013
    Publication date: June 5, 2014
    Applicant: Corning Incorporated
    Inventor: Jeffrey Stapleton King
  • Publication number: 20140141957
    Abstract: An invention is provided for creating smoothed, heat-treated glass fragments. The invention includes placing a plurality of heat-treated glass fragments into a tumbling or vibrating apparatus. Each heat-treated glass fragment is formed from glass that has been heated to a temperature of at least 1000° Fahrenheit and rapidly cooled to a temperature below 700° Fahrenheit. The plurality of glass fragments are then tumbled or vibrated for a predetermined period of time such that surfaces of the heat-treated glass fragments are smoother than prior to tumbling. The glass fragments are thereafter removed from the tumbling apparatus, resulting in smoothed, heat-treated glass fragments that are suitable for direct handling without hand protection.
    Type: Application
    Filed: April 15, 2013
    Publication date: May 22, 2014
    Inventors: Edgar Edward Jaunzemis, Claudia Sue Jaunzemis
  • Patent number: 8709148
    Abstract: Particles colored with at least one colorant, where the colored glass particles are glass platelets with an average diameter of 1 to 500 ?m and the colorants at least include at least one of metallic nanoparticles and metal oxides. The glass platelets are planar and the colorants are present in a concentration from 1% to 55% by weight, based on the total weight of the colored glass platelets. The disclosure further relates to a method to a method for producing the colored glass particles and to the use thereof.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: April 29, 2014
    Assignee: Eckart GmbH
    Inventors: Stefan Trummer, Ulrich Schmidt, Dirk Schumacher, Günter Kaupp, Christian Wolfrum
  • Publication number: 20140113797
    Abstract: A device for cutting a brittle member such as a glass is comprised of a laser oscillator configured to radiate a laser beam through a first space onto a first region on the brittle member; a cooling nozzle configured to expel a cooling medium onto a second region distinct from the first region on the brittle member; a baffle so disposed as to leave a gap between the member and the baffle and to have the first region not enclosed by the baffle, and so directed as to deflect a flow of a splash and a mist originating in the second region away from the first region; and a gas nozzle configured to expel a gas toward the gap.
    Type: Application
    Filed: December 24, 2013
    Publication date: April 24, 2014
    Applicant: IHI Corporation
    Inventors: Junichi YAMADA, Norihito Kawaguchi, Yoshiyuki Wada, Tomoo Kusumi, Noriaki Hasegawa, Yuichiro Nakayama, Toshiaki Saitou
  • Publication number: 20140107389
    Abstract: A method for sequestrating arsenic oxides, comprising forming an insoluble and stable glass incorporating a fully oxidized form of arsenic generated by oxidation of an initial lower oxide of arsenic and stabilization by calcium salt formation. The glass composition for sequestration of arsenic comprises from 50 to 75% silica; from 0.5 to 3% Al2O3; from 1 to 15% MnO; from 5 to 15% CaO; from 1 to 20% As2O5 and from 8 to 14% Na2O, less than four percent of iron oxides, magnesium oxide and other oxides.
    Type: Application
    Filed: September 4, 2013
    Publication date: April 17, 2014
    Applicant: Nichromet Extraction Inc.
    Inventors: Jean-Marc Lalancette, Bertrand Dubreuil, David Lemieux
  • Patent number: 8670182
    Abstract: A glass composition and a light extracting member using the same is provided, where the glass composition does not substantially contain a lead oxide and an alkali metal oxide and has a glass transition temperature of 530° C. or less and acid resistance property. An alkali-free cover glass composition is also provided which does not substantially contain a lead oxide and an alkali metal oxide; has a refractive index (nd) of 1.7 to 2.3; has a glass transition temperature of 530° C. or less; has a dissolution depth of less than 1.3 ?m as measured by an acid dipping weight loss measurement method; and contains 8 to 25% of Nb2O5 in terms of mol % on the basis of an oxide thereof.
    Type: Grant
    Filed: January 25, 2013
    Date of Patent: March 11, 2014
    Assignee: Asahi Glass Company, Limited
    Inventors: Masamichi Tanida, Naoya Wada
  • Publication number: 20140024517
    Abstract: The present invention relates to a float glass manufactured by causing a molten glass continuously supplied onto a molten tin in a bath to flow on the molten tin toward an outlet of the bath, in which the float glass satisfies the following formula (1). According to the present invention, a high-quality float glass and a method for manufacturing the same are provided. [ Math . ? 1 ] ? 0 Da ? ( Ca - C ? ( x ) ) ? ? ? x Ca × D × 100 ? 0.
    Type: Application
    Filed: September 20, 2013
    Publication date: January 23, 2014
    Applicant: Asahi Glass Company, Limited
    Inventors: Yasuo HAYASHI, Takenori MIURA, Satoshi MIYASAKA
  • Publication number: 20140017475
    Abstract: Provided is a method of cutting a glass sheet (G) by performing at least localized heating along a preset cutting line (5) of the glass sheet (G), the method comprising cutting a full body of the glass sheet (G) by performing at least the localized heating along the preset cutting line (5) of the glass sheet (G) under a state in which support members (2 (8)) for supporting, from a back surface side of the glass sheet (G), portions of the glass sheet (G) that are situated apart from the preset cutting line (5) toward both sides thereof are arranged apart from each other so as to form a space (S) on the back surface side of the preset cutting line (8).
    Type: Application
    Filed: June 7, 2011
    Publication date: January 16, 2014
    Inventors: Yasuo Teranishi, Yasuhiro Matsumoto, Taiki Minari, Takaya Furuta
  • Publication number: 20130329179
    Abstract: Methods for preparing ferroelectric nanoparticles, liquid crystal compositions containing the ferroelectric nanoparticles, and electronic devices utilizing the ferroelectric nanoparticles are described. The methods of preparing the ferroelectric nanoparticles may include size-reducing a starting material comprising particles of a bulk intrinsically nonferroelectric glass to form glass nanoparticles having an average size of less than 20 nm, the glass nanoparticles comprising ferroelectric nanoparticles. Exemplary bulk intrinsically nonferroelectric glasses may include borosilicate glasses, tellurite glasses, bismuthate glasses, gallate glasses, and mixtures thereof, for example. The size reduction may be accomplished using ball milling with a solvent combination such as n-heptane and oleic acid. Liquid crystal compositions may include the ferroelectric nanoparticles in combination with a liquid crystal.
    Type: Application
    Filed: December 12, 2012
    Publication date: December 12, 2013
    Applicant: AZIMUTH CORPORATION
    Inventors: Gary Cook, Dean R. Evans, Sergey A. Basun
  • Publication number: 20130316194
    Abstract: To provide a method for manufacturing a glass blank for magnetic disk and a method for manufacturing a glass substrate for magnetic disk, which are capable of producing a glass blank for magnetic disk having a good surface waviness by press forming, and a method for manufacturing a glass substrate for magnetic disk. A method for manufacturing a glass blank for magnetic disk, which includes a forming process of press-forming a lump of molten glass using a pair of dies, wherein in the forming process, press forming is performed using thermally equalizing means for reducing a difference in temperature in the press forming surface of the die during pressing of the molten glass.
    Type: Application
    Filed: April 17, 2013
    Publication date: November 28, 2013
    Applicant: HOYA CORPORATION
    Inventors: Hideki ISONO, Hidekazu TANINO, Akira MURAKAMI, Takashi SATO, Masamune SATO
  • Publication number: 20130244859
    Abstract: Provided is an alkali-free glass, which is substantially free of alkali metal oxides, and has a strain point of more than 680° C., an average coefficient of thermal expansion in the temperature range of 30 to 380° C. of 40 to 55×10?7/° C., and a liquidus temperature of less than 1,200° C. Further, the alkali-free glass comprises, as a glass composition in terms of mass %, 55 to 70% of SiO2, 10 to 20% of Al2O3, 0.1 to 4.5% of B2O3, 0 to 1% of MgO, 5 to 15% of CaO, 0.5 to 5% of SrO, and 5 to 15% of BaO.
    Type: Application
    Filed: August 10, 2011
    Publication date: September 19, 2013
    Inventors: Takahiro Kawaguchi, Shinkichi Miwa
  • Patent number: 8535438
    Abstract: The present invention relates to a chemically resistant glass composition for the production of reinforcing strands which comprises the following constituents within the limits defined below, expressed in mol %: SiO2 67-72%; ZrO2 5-9.5%, preferably ?7.5%; R2O (R=Na, K and Li) 11-17%; Li2O 0-5.5%; K2O 0-5.5%; Na2O<10%; and CaO 3-9%, the composition furthermore containing less 1% of impurities (Al2O3, Fe2O3, Cr2O3, TiO2, MgO, SrO, BaO and P2O5) and being free of F. It also relates to the glass strands obtained from this composition and to the composites based on an organic or inorganic material containing such strands.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: September 17, 2013
    Assignee: OCV Intellectual Capital, LLC
    Inventors: Anne Berthereau, Jerome Lalande
  • Publication number: 20130217559
    Abstract: The present invention relates to a coloring composition free of nickel oxide. In particular, the coloring composition for glass comprises manganese dioxide (MnO2), chromium oxide (III) (Cr2O3), cobalt oxide (Co3O4) and a glass medium. Furthermore, the present invention relates to the process for producing the coloring composition and the use thereof for the purpose of imparting a dark color (black), in particular a blue-violet-black color, to the glass.
    Type: Application
    Filed: February 21, 2013
    Publication date: August 22, 2013
    Applicant: VERTRICERAMICI S.p.A.
    Inventor: Michele BETTOLI
  • Patent number: 8506981
    Abstract: The present invention is directed to implantable compositions comprising substantially spherical bioactive glass particles.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: August 13, 2013
    Assignee: Synergy Biomedical LLP
    Inventor: Mark D. Borden
  • Publication number: 20130194483
    Abstract: A porous glass having high strength and a low refractive index, an optical member by using the porous glass, and a method for manufacturing the porous glass are provided. A method for manufacturing a porous glass includes the steps of heat-treating a glass body, which can be phase-separated through heating and which is formed from a plurality of components, at a first temperature to effect the phase separation, heat-treating the glass body, which has been heat-treated at the first temperature, at a second temperature, higher than the first temperature, to effect the phase separation, and bringing the glass body, which has been heat-treated at the second temperature, into contact with an aqueous solution, wherein the total time of the heat treatment time at the first temperature and the heat treatment time at the second temperature is 7 hours or more.
    Type: Application
    Filed: September 21, 2011
    Publication date: August 1, 2013
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Kenji Takashima, Zuyi Zhang, Yoshinori Kotani, Akira Sugiyama
  • Publication number: 20130170056
    Abstract: Substrates suitable for mirrors which are used at wavelengths in the EUV wavelength range have a main body (2) and a polishing layer (3). The polishing layer (3) has a thickness of less than 10 ?m and a root-mean-square roughness of less than 0.5 nm and the main body (2) is produced from an aluminum alloy. Moreover, a highly reflective layer (6) is provided on the polishing layer (3) of the substrate (1) of the EUV mirror (5).
    Type: Application
    Filed: February 28, 2013
    Publication date: July 4, 2013
    Applicant: CARL ZEISS SMT GMBH
    Inventor: CARL ZEISS SMT GMBH
  • Publication number: 20130135745
    Abstract: The present invention provides a glass composition and a light extracting member using the same, where the glass composition does not substantially contain a lead oxide and an alkali metal oxide and has a glass transition temperature of 530° C. or less and acid resistance property. The present invention relates to an alkali-free cover glass composition which does not substantially contain a lead oxide and an alkali metal oxide; has a refractive index (nd) of 1.7 to 2.3; has a glass transition temperature of 530° C. or less; has a dissolution depth of less than 1.3 ?m as measured by an acid dipping weight loss measurement method; and contains 8 to 25% of Nb2O5 in terms of mol % on the basis of an oxide thereof.
    Type: Application
    Filed: January 25, 2013
    Publication date: May 30, 2013
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventor: ASAHI GLASS COMPANY, LIMITED
  • Publication number: 20130116105
    Abstract: A molten bath-based direct smelting process comprises controlling the process conditions in a direct smelting yessel so that molten slag in a molten bath of metal and slag in the vessel has a viscosity in a range of 0.5-5 poise when the slag temperature is in a range of 1400-1550° C. in the molten bath in the vessel.
    Type: Application
    Filed: May 18, 2011
    Publication date: May 9, 2013
    Inventors: Rodney James Dry, Jacques Pilote
  • Publication number: 20130102228
    Abstract: A disclosed glass plate is formed by converging flow streams of molten glass, which have a same composition and are caused to flow downward along left and right surfaces respectively of a forming body, in a vicinity of a root of the forming body, wherein neither front nor back surface of the glass plate is polished, wherein a convergent plane between the flow streams deviates to one side from a center plane lying at a center between the front surface of the glass plate and the back surface of the glass plate.
    Type: Application
    Filed: December 14, 2012
    Publication date: April 25, 2013
    Applicant: Asahi Glass Company, Limited
    Inventor: Asahi Glass Company, Limited
  • Publication number: 20130090227
    Abstract: The technical task of the present invention is to provide a lead-free glass for semiconductor encapsulation, which is easy to automate an appearance inspection, and furthermore, has excellent refinability and encapsulatability of semiconductor devices. In the lead-free glass for semiconductor encapsulation according to the present invention, a temperature at which the viscosity of glass is 106 dPa·s is 670° C. or lower, and, as a glass composition, the content of CeO2 is from 0.01 to 6% by mass, and the content of Sb2O3 is 0.1% by mass or less.
    Type: Application
    Filed: June 17, 2011
    Publication date: April 11, 2013
    Applicant: NIPPON ELECTRIC GLASS CO., LTD.
    Inventor: Koichi Hashimoto
  • Publication number: 20130072371
    Abstract: A foam and frothy glass mixture that forms on a pool of molten glass and inhibits heat transfer between the overhead flames and the pool of molten glass is decreased, if not eliminated, by spreading a glass fluxing agent, e.g. but not limiting to the invention, sodium sulfate over the foam and/or frothy glass mixture.
    Type: Application
    Filed: March 13, 2012
    Publication date: March 21, 2013
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Lawrence E. Jansen, Rodney K. Dunn, Robert E. Eakin, Gerald DiGiampaolo
  • Publication number: 20130065745
    Abstract: There is provided a method for providing glass information and a glass material capable of preventing a generation of a gap between an evaluation regarding chemical durability of the glass material and an actual surface state, which is the method for providing glass information for providing information regarding the chemical durability of the glass material, wherein a correlation between a variation of hydrogen ion concentration indexes of a process liquid in which the glass material is immersed, and a variation of chemical durability index values of a prescribed types of glass materials, is tabulated in a visible form, and is provided individually for each type of the glass materials.
    Type: Application
    Filed: September 6, 2012
    Publication date: March 14, 2013
    Applicant: HOYA CORPORATION
    Inventors: Shigeru AOYAGI, Jun Nakamura, Kazuo Tachiwana, Junko Akojima
  • Publication number: 20130053233
    Abstract: A process for obtaining a glass sheet including antimony oxide, the process including a step of melting a batch mix, a step of transporting the molten glass to at least one forming device, and a forming step, in which glass frit including a weight content of antimony oxide between 2 and 30% is added, concurrently or alternately, to the batch mix, during the melting step, or during the step of transporting the molten glass to at least one forming device.
    Type: Application
    Filed: October 11, 2010
    Publication date: February 28, 2013
    Applicant: SAINT-GOBAIN GLASS FRANCE
    Inventors: Olivier Mario, Edouard Brunet, Octavio Cintora