Silica Containing Patents (Class 501/53)
  • Patent number: 10351467
    Abstract: A glass lining that has an excellent balance between a hydrophilic property and a hydrophobic property on its surface, that has less adhesion of dirt than a typical GL since having an excellent stain-proof property against both oily stains and aqueous stains, and that can maintain the stain-proof property and the self-cleaning performance for a long time after the glass lining is cleaned, leading to excellent cleaning performance and low dirt-adhesion. The glass lining includes a lining and a conductive inorganic compound contained in the lining. The glass lining is structured to have a plurality of hydrophilic concave portions and net-like hydrophobic convex portions connecting peripheries of the plurality of hydrophilic concave portions.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: July 16, 2019
    Assignee: HAKKO SANGYO CO., LTD.
    Inventors: Katsuhiro Sato, Kenichi Fukuda
  • Patent number: 10246368
    Abstract: To provide an optical glass which has a unique combination of anomalous dispersibility in a visible range with that in a near-infrared range. Provided is an optical glass containing respective components of SiO2 from 14 to 26% by mass, B2O3 from 9 to 16% by mass, and La2O3 from 10 to 42% by mass as essential components, and containing respective components of ZnO, Y2O3, ZrO2, Ta2O5, Li2O, and Na2O as optional components, and satisfying respective relationships of SiO2+B2O3 from 28 to 36% by mass, ZrO2+Ta2O5 from 6 to 16% by mass, La2O3+Y2O3+ZnO from 43 to 59% by mass, and Li2O+Na2O from 2 to 14% by mass.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: April 2, 2019
    Assignee: NIKON CORPORATION
    Inventors: Tatsunori Kawashima, Hiroshi Yamamoto, Kohei Yoshimoto
  • Patent number: 9890071
    Abstract: Silica-titania glasses with small temperature variations in coefficient of thermal expansion over a wide range of zero-crossover temperatures and methods for making the glasses. The method includes a cooling protocol with controlled anneals over two different temperature regimes. A higher temperature controlled anneal may occur over a temperature interval from 750° C.-950° C. or a sub-interval thereof. A lower temperature controlled anneal may occur over a temperature interval from 650° C.-875° C. or a sub-interval thereof. The controlled anneals permit independent control over CTE slope and Tzc of silica-titania glasses. The independent control provides CTE slope and Tzc values for silica-titania glasses of fixed composition over ranges heretofore possible only through variations in composition.
    Type: Grant
    Filed: October 12, 2016
    Date of Patent: February 13, 2018
    Assignee: Corning Incorporated
    Inventor: Carlos Alberto Duran
  • Patent number: 9522840
    Abstract: A blank of TiO2—SiO2 glass for a mirror substrate for use in EUV lithography has a low need for adaptation to optimize the progression of the coefficient of thermal expansion, and consequently also the progression of the zero crossing temperature Tzc. The TiO2—SiO2 glass has at a mean value of the fictive temperature Tf in the range between 920° C. and 970° C. a dependence expressed as the differential quotient dTzc/dTf of its zero crossing temperature Tzc on the fictive temperature Tf of less than 0.3.
    Type: Grant
    Filed: February 4, 2014
    Date of Patent: December 20, 2016
    Assignee: Heraeus Quarzglas GmbH & Co. KG
    Inventors: Stephan Thomas, Klaus Becker, Stefan Ochs
  • Publication number: 20150147497
    Abstract: A method of making soda-lime glass using 100 wt % cullet as the glass forming materials is disclosed. Also disclosed is a soda-lime glass container made according to this method.
    Type: Application
    Filed: November 25, 2013
    Publication date: May 28, 2015
    Applicant: Owens-Brockway Glass Container Inc.
    Inventor: Robert Brouwer
  • Patent number: 9034442
    Abstract: According to one embodiment, a glass container may include a body formed from a Type I, Class B glass composition according to ASTM Standard E438-92. The body may have an inner surface, an outer surface and a wall thickness extending between the outer surface and the inner surface. The body may also include a compressively stressed layer extending into the wall thickness from at least one of the outer surface and the inner surface. A lubricous coating may be positioned on at least a portion of the outer surface of the body, wherein the outer surface of the body with the lubricous coating has a coefficient of friction less than or equal to 0.7.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: May 19, 2015
    Assignee: Corning Incorporated
    Inventors: Theresa Chang, Steven Edward DeMartino, Andrei Gennadyevich Fadeev, John Stephen Peanasky, Robert Anthony Schaut, Christopher Lee Timmons
  • Patent number: 8999483
    Abstract: Disclosed is a honeycomb catalyst support structure comprising a honeycomb body and an outer layer or skin formed of a cement comprising an amorphous glass powder with a multimodal particle size distribution applied to an exterior surface of the honeycomb body. The multimodal particle size distribution is achieved through the use of a first glass powder having a first median particle size and at least a second glass powder having a second median particle size. In some embodiments, the first and second glass powders are the same amorphous glass consisting of fused silica. The cement may further include a fine-grained, sub-micron sized silica in the form of colloidal silica. The cement exhibits a coefficient of thermal expansion less than 15×10?7/° C., and preferably about 5×10?7/° C. after drying.
    Type: Grant
    Filed: November 22, 2011
    Date of Patent: April 7, 2015
    Assignee: Corning Incorporated
    Inventors: Thomas R. Chapman, Linda J. Ingersoll, Patrick D. Tepesch
  • Publication number: 20150087493
    Abstract: Lithium disilicate apatite glass-ceramics are described which are characterized by a high chemical stability and can therefore be used in particular as restoration material in dentistry.
    Type: Application
    Filed: April 25, 2013
    Publication date: March 26, 2015
    Inventors: Christian Ritzberger, Wolfram Holand, Marcel Schweiger, Volker Rheinberger
  • Publication number: 20150074974
    Abstract: Disclosed are alkali aluminosilicate glasses having unexpected resistance to indentation cracking. The glasses obtain this high resistance as a result of a high level of surface compression accompanied by a shallow depth of layer. The advantaged glasses show greater resistance to radial crack formation from Vickers indentation than glasses with the same compressive stress, but higher depths of layer.
    Type: Application
    Filed: November 19, 2014
    Publication date: March 19, 2015
    Inventors: Jonathan David Pesansky, Chandan Kumar Saha, Trevor E. Wilantewicz
  • Patent number: 8980778
    Abstract: The present invention relates to novel binder and slurry formulations used to form molds for casting metal alloys and, more particularly, reactive metal alloys. The shell molds lead to more uniform castings which exhibit limited alpha case as compared to other currently available shell mold systems.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: March 17, 2015
    Assignee: Buntrock Industries, Inc.
    Inventors: David H. Sturgis, Thomas M. Branscomb
  • Publication number: 20150064473
    Abstract: Ion exchangeable glasses containing SiO2, Al2O3, Na2O, MgO, B2O3, and P2O5 are provided. The compressive stresses of these ion exchanged glasses are greater than 900 megapascals (MPa) at a depth of 45 or 50 microns (?m) with some glasses exhibiting a compressive stress of at least 1 gigaPascals (GPa). The ion exchange rates of these glasses are much faster than those of other alkali aluminosilicate glasses and the ion exchanged glass is resistant damage to impact damage. A method of ion exchanging the glass is also provided.
    Type: Application
    Filed: August 25, 2014
    Publication date: March 5, 2015
    Inventors: Matthew John Dejneka, Sinue Gomez, Timothy Micheal Gross, Xiaoju Guo
  • Publication number: 20150064472
    Abstract: Ion exchangeable glasses having coefficients of thermal expansion (CTE) at least about 90×10?7 ° C.?1. The glasses undergo rapid ion exchange, for example, in a molten KNO3 salt bath to a depth of layer of greater than 30 microns in less than 2 hours at temperatures of 370° C. to 390° C. When ion-exchanged to a depth of layer between 30 to 50 microns, the glasses exhibit a Vickers median/radial crack initiation threshold exceeding 30 kilograms force (kgf). The glasses are fusion formable and, in some embodiments, compatible with zircon.
    Type: Application
    Filed: August 22, 2014
    Publication date: March 5, 2015
    Inventors: Timothy Michael Gross, Xiaoju Guo
  • Patent number: 8946102
    Abstract: This invention relates to lead free and cadmium free copper-containing glass fits that can be used as pigments to color other glass fits or to impart color to solid substrates such as glass, ceramic or metals, or to impart color to a thermoplastic mass. The compositions comprise silica, alkali metal oxides, alkaline earth metal oxides, tin oxide and copper oxide. The resulting compositions can be used to decorate and protect automotive, beverage, architectural, pharmaceutical and other glass substrates, generally imparting a red color.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: February 3, 2015
    Assignee: Ferro Corporation
    Inventors: Enos A. Axtell, III, George E. Sakoske, Andreas Schulz, Juergen Hanich, Lothar Heck, Dietrich Speer, Martin Baumann
  • Publication number: 20140356576
    Abstract: Described herein are various glass compositions, glass articles, and information storage devices that comprise the glass articles as substrates therefor, along with methods for their manufacture and use.
    Type: Application
    Filed: May 29, 2013
    Publication date: December 4, 2014
    Inventors: Matthew John Dejneka, John Christopher Mauro, Morten Mattrup Smedskjaer
  • 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
  • Publication number: 20140339685
    Abstract: A glass composition for protecting a semiconductor junction contains at least SiO2, B2O3, Al2O3, ZnO, and at least two oxides of alkaline earth metal selected from the group consisting of CaO, MgO and BaO, and substantially contains none of Pb, P, As, Sb, Li, Na and K.
    Type: Application
    Filed: January 31, 2012
    Publication date: November 20, 2014
    Inventors: Koya Muyari, Koji Ito, Atsushi Ogasawara, Kazuhiko Ito
  • Publication number: 20140342897
    Abstract: The present disclosure relates to glass articles for use as a touchscreen substrate for use in a portable electronic device, particularly comprising an alkali-free aluminosilicate glass exhibiting a high damage threshold of at least 1000 gf, as measured by the lack of the presence of median/radial cracks when a load is applied to the glass using a Vickers indenter, a scratch resistance of at least 900 gf, as measured by the lack of the presence of lateral cracks when a load is applied by a moving Knoop indenter and a linear coefficient of thermal expansion (CTE) over the temperature range 0-300° C. which satisfies the relationship: 25×10-7/° C.?CTE?40×10-7/° C.
    Type: Application
    Filed: July 31, 2014
    Publication date: November 20, 2014
    Applicant: Corning Incorporated
    Inventors: Jaymin Amin, Adam James Ellison, Gregory Scott Glaesemann, Timothy Michael Gross
  • Publication number: 20140334276
    Abstract: An aspect of the present invention relates to glass for a magnetic recording medium substrate, which includes essential components in the form of SiO2, Li2O, Na2O, and one or more alkaline earth metal oxides selected from the group consisting of MgO, CaO, SrO, and BaO, wherein a molar ratio of a content of MgO to a combined content of MgO, CaO, SrO, and BaO (MgO/(MgO+CaO+SrO+BaO)) is equal to or greater than 0.80, and which has a Young's modulus of equal to or greater than 80 GPa, and a glass transition temperature of equal to or greater than 620° C.
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Applicant: HOYA CORPORATION
    Inventors: Naomi MATSUMOTO, Kazuaki Hashimoto
  • Publication number: 20140323286
    Abstract: Fusion-formable sodium-containing aluminosilicate and boroaluminosilicate glasses are described. The glasses are particularly useful for controlled release of sodium—useful in semiconductor applications, such as thin film photovoltaics where the sodium required to optimize cell efficiency is to be derived from the substrate glass.
    Type: Application
    Filed: April 24, 2014
    Publication date: October 30, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Bruce Gardiner Aitken, Adam James Ellison, James Patrick Hamilton, Timothy James Kiczenski
  • Publication number: 20140309099
    Abstract: A glass has a basic soda-lime-silica glass portion, and a colorant portion including total iron as Fe2O3 selected from the group of total iron as Fe2O3 in the range of greater than zero to 0.02 weight percent; total iron as Fe2O3 in the range of greater than 0.02 weight percent to less than 0.10 weight percent and total iron as Fe2O3 in the range of 0.10 to 2.00 weight percent; redox ratio in the range of 0.2 to 0.6, and tin and/or tin compounds, e.g. SnO2 greater than 0.000 to 6.0 weight percent. In one embodiment of the invention, the glass has a tin side and an opposite air side, wherein the tin side of the glass is supported on a molten tin bath during forming of the glass. The tin concentration at the tin side of the glass is greater than, less than, or equal to the tin concentration in “body portion” of the glass. The “body portion” of the glass extending from the air side of the glass toward the tin side and terminating short of the tin side of the glass.
    Type: Application
    Filed: April 14, 2014
    Publication date: October 16, 2014
    Applicant: PPG INDUSTRIES OHIO, INC.
    Inventors: Mark O. Naylor, Lawrence E. Jansen, Larry J. Shelestak
  • Publication number: 20140308526
    Abstract: An ion exchangeable glass that is free of lithium and comprising 0.1-10 mol % P2O5 and at least 5 mol % Al2O3. The presence of P2O5 enables the glass to be ion exchanged more quickly and to a greater depth than comparable glasses that do not contain P2O5.
    Type: Application
    Filed: June 24, 2014
    Publication date: October 16, 2014
    Inventors: Christy Lynn Chapman, Matthew John Dejneka, Sinue Gomez, Lisa Ann Lamberson
  • Publication number: 20140309097
    Abstract: A glass element is provided that is made of a glass having SiO2, Al2O3, B2O3, and Na2O. The glass has a scratch tolerance that when scratches of 1 mm length are introduced using a Knoop diamond indenter which presses upon a surface of the glass with a force of 4 Newton and is displaced along the surface with a traverse speed of 0.4 mm/s, not more than 20% of the scratches have a noticeable width including visible chipping of more than 25 ?m. In some embodiments, the glass, after chemical tempering, has sodium ions that are at least partially exchanged for potassium ions so that a compressive stress zone is provided at the surface of the glass. The compressive stress is at least 700 MPa and an exchange depth of alkali ions is at least 25 ?m.
    Type: Application
    Filed: April 10, 2014
    Publication date: October 16, 2014
    Applicant: Schott AG
    Inventors: Oliver Hochrein, Inge Burger, Irmgard Westenberger, Jochen Alkemper, Gerd Rudas, Katharina Alt, Gordon Kissl, Gunther Paulus
  • Publication number: 20140242391
    Abstract: To provide a glass plate to be tempered, which has a low thermal expansion coefficient at relatively low temperature, and which can have a sufficiently high surface compression stress by a conventional heat tempering process, even when it is thin. A glass plate to be tempered, which contains B2O3 in a range of from 12.5 to 35 mol % in its composition, the difference [X?Y] between the total content X of compounds selected from MgO, CaO, BaO, Na2O and K2O in the composition and the content Y of B2O3 in the composition being within a range of from ?5 to 10 mol %, and which is to be tempered by heating and quenching.
    Type: Application
    Filed: September 20, 2012
    Publication date: August 28, 2014
    Applicant: Asahi Glass Company, Limited
    Inventors: Madoka Ono, Akio Koike, Shinichi Amma, Setsuro Ito
  • Publication number: 20140228196
    Abstract: Lithium silicate glass ceramics and glasses containing specific oxides of divalent elements are described which crystallize at low temperatures and are suitable in particular as dental materials.
    Type: Application
    Filed: October 11, 2012
    Publication date: August 14, 2014
    Applicant: Ivoclar Vivadent AG
    Inventors: Christian Ritzberger, Elke Apel, Wolfram Höland, Volker Rheinberger
  • 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
  • Patent number: 8778502
    Abstract: A glass ceramic composition includes a SrZrO3 ceramic, a Li2O—MgO—ZnO—B2O3—SiO2-based glass, Mg2SiO4 in an amount of about 5 to 40 weight percent, and a SrTiO3 ceramic in an amount in the range of about 0 to about 6 weight percent of the total. The Li2O—MgO—ZnO—B2O3—SiO2-based glass accounts for about 1 to about 12 weight percent of the total.
    Type: Grant
    Filed: January 21, 2009
    Date of Patent: July 15, 2014
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yasutaka Sugimoto, Sadaaki Sakamoto, Hiroshige Adachi
  • Publication number: 20140194271
    Abstract: The disclosure describes a silica-titania glass having a selected titania content in the range of 5-20 wt % that has zero crossover temperature (Tzc) associated with the selected titania content withing this range, and the Tzc is adjustable by ±10° C. or less. The disclosure also describes a method by which the Tzc of a silica-titania glass article, for example, a mirror substrate, can be tuned to within a specification range by means of a selected final anneal that shifts Tzc of the article or substrate to the desired Tzc value. In addition, since different mirrors in a set can be specified at different values of Tzc, this process the method can be on used glass samples or pieces from a single glass boule to make parts with different Tzc values, thus reducing the number of separate boules required to fill an order.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 10, 2014
    Applicant: Corning Incorporated
    Inventors: Carlos Alberto Duran, Kenneth Edward Hrdina
  • Publication number: 20140141226
    Abstract: Ion-exchangeable glasses having high hardness and high elastic modulus. The base cover glass formulation includes Na2O, Y2O3, Al2O3, and SiO2. The glasses may further include P2O5, B2O3, and any of the alkali, alkaline earth, and rare earth oxides, as well as other divalent metal oxides. The ion-exchangeable glasses offer higher hardness, which provides more resistance to micro-ductile scratching damage. Ion-exchange of these glasses increases their resistance to cracking caused by frictive damage and increases retained strength following formation of surface damage.
    Type: Application
    Filed: November 18, 2013
    Publication date: May 22, 2014
    Applicant: CORNING INCORPORATED
    Inventors: Dana Craig Bookbinder, Timothy Michael Gross
  • Publication number: 20140141227
    Abstract: ?-quartz lithium aluminosilicate (LAS) glass-ceramics contain neither arsenic oxide nor antimony oxide, are fined with tin oxide and include vanadium oxide, chromium oxide and a high iron oxide content (>1500 ppm), and have a controlled transmission curve. Articles such as cook-tops can be made from such glass-ceramics.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 22, 2014
    Applicant: EUROKERA
    Inventors: Isabelle Marie Melscoët-Chauvel, Marie Jacqueline Monique Comte, Emmanuel Raymond André Lecomte
  • Patent number: 8722188
    Abstract: Disclosed is a process for producing ceramic particles, such as proppants, that have at least 10 percent total porosity. The process includes forming a particle precursor that includes 5 percent to 30 percent of a first ceramic material and at least 40 percent of a second ceramic material. The sintering temperature of the first ceramic material may be lower than the sintering temperature of a second ceramic material. Heating the precursor to a maximum temperature above the sintering temperature of the first material and below the sintering temperature of the second material. Also disclosed is a ceramic article that has a particular combination of chemistry and alumina crystalline phase.
    Type: Grant
    Filed: December 31, 2009
    Date of Patent: May 13, 2014
    Assignee: Saint-Gobain Ceramics & Plastics, Inc.
    Inventors: Tihana Fuss, Laurie San-Miguel, Kevin R. Dickson, Walter T. Stephens
  • Publication number: 20140120278
    Abstract: Latent colorant material compositions, soda-lime-silica glass compositions, and related methods of manufacturing color-strikable glass containers. The latent colorant material compositions may be introduced into a plurality of base glass compositions having redox numbers in the range of ?40 to +20 to produce color-strikable glass compositions and color-strikable glass containers. The latent colorant material compositions introduced into the base glass compositions include a mixture of cuprous oxide (Cu2O), stannous oxide (SnO), bismuth oxide (Bi2O3), and carbon (C). After formation, the color-strikable glass containers may be heat-treated to strike red or black therein.
    Type: Application
    Filed: November 1, 2012
    Publication date: May 1, 2014
    Applicant: Owens-Brockway Glass Container Inc.
    Inventor: Owens-Brockway Glass Container Inc.
  • Publication number: 20140102147
    Abstract: A process for making silica-based glass includes: (a) forming a glass precursor melt that includes glass network formers and glass network modifiers, the glass precursor melt having a viscosity of not more than 30 Pa·s at 1300 C, and (b) refining the glass precursor melt. Either or both steps (a) and (b) can include stirring and/or be carried out under reduced pressure to enhance refining. The refined glass precursor melt preferably is mixed with additional materials including silica (SiO2) to form a silica-based glass melt.
    Type: Application
    Filed: October 17, 2012
    Publication date: April 17, 2014
    Applicant: Owens-Brockway Glass Container Inc.
    Inventors: Daniel Russell Swiler, Terence John Clark, Carl Lucas Fayerweather
  • 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
  • Publication number: 20140036644
    Abstract: An aspect of the present invention relates to glass for a magnetic recording medium substrate, which includes essential components in the form of SiO2, Li2O, Na2O, and one or more alkaline earth metal oxides selected from the group consisting of MgO, CaO, SrO, and BaO, wherein a molar ratio of a content of MgO to a combined content of MgO, CaO, SrO, and BaO (MgO/(MgO+CaO+SrO+BaO)) is equal to or greater than 0.80, and which has a Young's modulus of equal to or greater than 80 GPa, and a glass transition temperature of equal to or greater than 620° C.
    Type: Application
    Filed: May 9, 2013
    Publication date: February 6, 2014
    Applicant: HOYA CORPORATION
    Inventors: Naomi MATSUMOTO, Kazuaki HASHIMOTO
  • Publication number: 20140024518
    Abstract: The present invention relates to pellets for use in the manufacture of glass.
    Type: Application
    Filed: January 24, 2012
    Publication date: January 23, 2014
    Inventors: Samuel Mark Leese, John Alexander Stuart
  • Publication number: 20140018229
    Abstract: Synthetic quartz glass is prepared by subjecting a silicon-providing feedstock to flame hydrolysis in oxyhydrogen flame, depositing silica fine particles on a rotating quartz glass target while concurrently melting and vitrifying them, thereby forming a synthetic quartz glass ingot, shaping, annealing, and effecting dehydrogenation treatment at a temperature of at least 600° C. and a pressure of up to 5 Pa for a holding time of at least 12 hours. The synthetic quartz glass has a high helium gas permeability and is suited for forming nanoimprint molds.
    Type: Application
    Filed: July 1, 2013
    Publication date: January 16, 2014
    Inventors: Shigeru Maida, Hisatoshi Otsuka
  • Patent number: 8629071
    Abstract: A titania and sulfur co-doped quartz glass member is provided. Due to co-doping of titania and sulfur, the quartz glass member undergoes zero expansion at a certain temperature and low thermal expansion over a wide temperature range, and is thus suited for use in a commercial EUV lithography tool. A manufacturing method and an optical member for EUV lithography are also provided.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: January 14, 2014
    Assignee: Shin-Etsu Chemical Co., Ltd.
    Inventors: Shigeru Maida, Hisatoshi Otsuka
  • Publication number: 20130337992
    Abstract: A method of making a press-moldable glass, including melting starting materials, forming a melt, and annealing a formed glass, wherein the melt has a composition such that, (1) when rapidly cooled to room temperature, it becomes glass that has a scattering coefficient of less than 0.005 cm-1 at wavelengths of from 400 to 2,500 nm or comprises crystals with a volumetric ratio of less than 10-6, and (2) when maintained for three hours at a temperature 10° C. higher than the glass transition temperature, maintained for 10 min at a temperature yielding a viscosity of 104.5 to 103.5 dPa·s, and then rapidly cooled to room temperature, (3) the resulting glass has (a) a scattering coefficient of at least one wavelength from 400 to 2,500 nm of greater than 0.01 cm-1 or (b) crystals with a volumetric ratio of greater than 10-5. A temperature for annealing is lower than for glass transition.
    Type: Application
    Filed: June 6, 2013
    Publication date: December 19, 2013
    Inventors: Yoshiko KASUGA, Kazuo TACHIWANA, Hiroaki YANAGITA
  • 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: 20130321751
    Abstract: Provided is the plate glass having high annealing temperature, high strength, excellent flatness and low viscosity, and manufacturing process thereof, which can be used for display and photovoltaic solar device. The plate glass contains (in mass %) boron oxide 0-3.9%, sodium oxide 0.01-14%, iron oxide 0.01-5%, fluorine oxide 0%, magnesia 7-22.2%, alumina 0.01-39%, wherein the content of silica is 1.9-4.1 times that of calcium oxide, the content of calcium oxide is 1.0-1.8 times that of magnesia.
    Type: Application
    Filed: March 15, 2011
    Publication date: December 5, 2013
    Inventor: Dening Yang
  • Patent number: 8596094
    Abstract: A method of making a silica glass having a uniform fictive temperature. The glass article is heated at a target fictive temperature, or heated or cooled at a rate that is less than the rate of change of the fictive temperature, for a time that is sufficient to allow the fictive temperature of the glass to come within 3° C. of the target fictive temperature. The silica glass is then cooled from the target fictive temperature to a temperature below the strain point of the glass at a cooling rate that is greater than the relaxation rate of the glass at the target fictive temperature. The silica glass has a fictive temperature that varies by less than 3° C. after the annealing step. A silica glass made by the method is also described.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: December 3, 2013
    Assignee: Corning Incorporated
    Inventors: Carlos Duran, Kenneth Edward Hrdina, Ulrich Wilhelm Heinz Neukirch
  • Publication number: 20130316890
    Abstract: The present invention relates to a method for producing a silica glass body containing titania, containing: a flame hydrolysis step of feeding a silica (SiO2) precursor and a titania (TiO2) precursor into an oxyhydrogen flame and causing a hydrolysis reaction in the flame to form silica glass fine particles containing titania, in which in the flame hydrolysis step, a reaction rate of the hydrolysis reaction of the silica precursor is 80% or more.
    Type: Application
    Filed: July 31, 2013
    Publication date: November 28, 2013
    Applicant: ASAHI GLASS COMPANY, LIMITED
    Inventors: Junko MIYASAKA, Tomonori Ogawa, Masahiro Kawagishi, Masaaki Takata
  • Patent number: 8592041
    Abstract: Provided is a glass ceramic composition which can be fired at a temperature of 1000° C. or lower, and a sintered body of which has a low relative permittivity and a high Q value, stable temperature characteristic and high reliability, and is excellent in plating solution resistance. The glass ceramic composition provides a low dielectric constant layer for inclusion in a laminate glass ceramic substrate in a ceramic multilayer module. It includes a first ceramic having forsterite as the main constituent, a second ceramic having at least one of SrTiO3 and TiO2 as the main constituent, a third ceramic having BaZrO3 as the main constituent, a fourth ceramic having at least one of ZrO2 and MnO as the main constituent, and 3 weight % or more of a borosilicate glass containing Li2O, MgO, B2O3, SiO2 and ZnO, which further contains an additive constituent including at least one of CaO and SrO.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: November 26, 2013
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hiroshige Adachi, Sadaaki Sakamoto
  • 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: 20130230692
    Abstract: Provided is a high refractive index glass, comprising, as a glass composition in terms of mass %, 0.1 to 60% of SiO2+Al2O3+B2O3, having a mass ratio (BaO+La2O3+Nb2O5+TiO2+ZrO2)/(SiO2+Al2O3+B2O3) of 0.1 to 50, amass ratio (MgO+CaO+SrO+BaO)/(BaO+La2O3+Nb2O5+TiO2+ZrO2) of 0 to 10, and a mass ratio (TiO2+ZrO2)/(BaO+La2O3+Nb2O5) of 0.001 to 40, and having a refractive index nd of 1.55 to 2.3.
    Type: Application
    Filed: December 7, 2011
    Publication date: September 5, 2013
    Inventors: Tomoki Yanase, Takashi Murata
  • Publication number: 20130224491
    Abstract: Glass compositions that may be used to produce chemically strengthened glass sheets by ion exchange. The glass compositions are chosen to promote simultaneously high compressive stress and deep depth of layer or, alternatively, to reduce the time needed to ion exchange the glass to produce a predetermined compressive stress and depth of layer.
    Type: Application
    Filed: February 29, 2012
    Publication date: August 29, 2013
    Inventors: Morten Mattrup Smedskjaer, Marcel Potuzak, John Christopher Mauro
  • Publication number: 20130189486
    Abstract: A thin lithium-aluminosilicate glass is provided. The glass is suitable for three dimensional precision molding and suitable for toughening, wherein after toughening, the glass has a center tension smaller than 50 Mpa, a surface compressive stress of 600-1200 Mpa, and a bending strength of up to 500 MPa. The glass also has a transition point lower than 550° C.
    Type: Application
    Filed: February 22, 2011
    Publication date: July 25, 2013
    Applicant: SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO., LTD.
    Inventors: Chong Wang, José Zimmer, Feng He, Gerhard Lautenschlaeger, Armin Vogl
  • Publication number: 20130172168
    Abstract: Provided is an optical glass that has desired optical properties, superior resistance to devitrification, and superior mass productivity. An optical glass is made of a SiO2—Nb2O5—TiO2-based glass having a refractive index (nd) of 1.75 to 1.95 and an Abbe's number (?d) of 15 to 35 and has an operation temperature range (?T=(temperature at 100.5 poise)?(liquidus temperature)) of 20° C. or more. The optical glass preferably contains, in percent by mass, 15% to 45% SiO2, 15% to 40% (but excluding 40%) Nb2O5 and 1% to 30% TiO2 as glass components.
    Type: Application
    Filed: January 10, 2012
    Publication date: July 4, 2013
    Applicant: NIPPON ELECTRIC GLASS CO., LTD.
    Inventor: Fumio Sato
  • Patent number: 8476353
    Abstract: Provided are an amorphous polyamide resin composition having high transparency, and is excellent in heat resistance and stiffness, and a molded product thereof. The glass filler contains, expressed in terms of oxides by mass %, 68 to 74% of silicon dioxide (SiO2), 2 to 5% of aluminum oxide (Al2O3), 2 to 5% of boron oxide (B2O3), 2 to 10% of calcium oxide (CaO), 0 to 5% of zinc oxide (ZnO), 0 to 5% of strontium oxide (SrO), 0 to 1% of barium oxide (BaO), 1 to 5% of magnesium oxide (MgO), 0 to 5% of lithium oxide (Li2O), 5 to 12% of sodium oxide (Na2O), and 0 to 10% of potassium oxide (K2O), where a total amount of lithium oxide (Li2O), sodium oxide (Na2O), and potassium oxide (K2O) is 8 to 12%.
    Type: Grant
    Filed: September 25, 2008
    Date of Patent: July 2, 2013
    Assignee: Asahi Fiber Glass Company, Limited
    Inventors: Hideyuki Higashiyama, Keiji Sekine
  • Publication number: 20130154064
    Abstract: A glass composition for protecting a semiconductor junction contains at least SiO2, Al2O3, MO, and nickel oxide, and substantially contains none of Pb, P, As, Sb, Li, Na and K (M in MO indicates one of alkali earth metals).
    Type: Application
    Filed: August 29, 2011
    Publication date: June 20, 2013
    Applicant: SHINDENGEN ELECTRIC MANUFACTURING CO., LTD.
    Inventors: Atsushi Ogasawara, Kazuhiko Ito, Koji Ito