Nonsilica And Nonsilicate Crystalline Phase (e.g., Spinel, Barium Titanate, Etc.) Patents (Class 501/10)
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Patent number: 11880063Abstract: An optical element is provided. The optical element may comprise a material, the material being a matrix and a set of particles included in the matrix, the material having a molar fraction of SiO2 higher than or equal to 65 percent, each particle having a dimension smaller than or equal to 80 nanometers.Type: GrantFiled: March 22, 2019Date of Patent: January 23, 2024Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, UNIVERSITE DE LIMOGESInventors: Damien Pomarede, Jean-Louis Auguste, Georges Humbert, Mathieu Allix, Cécile Genevois, Emmanuel Veron, Sébastien Chenu, Gaëlle Delaizir
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Patent number: 11542193Abstract: A glass-ceramic that includes a first crystal phase including (MgxZn1-x)Al2O4, where x is ?1, and a second crystal phase including tetragonal ZrO2. The glass-ceramic may be substantially free of arsenic, tin, antimony, and cesium, each of the arsenic, tin, antimony, and cesium present at less than 0.01% (by mole of oxide). Further, the glass-ceramic may include a transmittance of at least about 80% to light having a wavelength of 380 nm to 760 nm.Type: GrantFiled: June 24, 2020Date of Patent: January 3, 2023Assignee: CORNING INCORPORATEDInventor: Alexandra Lai Ching Kao Andrews Mitchell
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Patent number: 11368136Abstract: An acoustic wave device comprises a piezoelectric material and a second material disposed on the piezoelectric material and having a temperature coefficient of frequency of a sign opposite a sign of a temperature coefficient of frequency of the piezoelectric material, the second material including one or more of Si1-x-yTixPyO2-zFz (x,y,z<0.1), Si1-x-yGexPyO2-zFz, Si1-x-yBxPyO2-zFz (x=y<0.04), Si1-3xZnxP2xO2-yFy, Si1-xPxO2-yFy, Si1-2yGaxPxO4, Si1-2yGay-xBxPyO4, Si1-2yGay-xBxPyO4-zFz, TiNb10O29, Si1-xTixO2-yFy, Si1-x-yTixPyO2, Si1-xBxO2-yFy, Si1-x-yBxPyO2, GeO2, GeO2-yFy, Si1-xGexO2, Si1-xGexO2-yFy, Si1-x-yGexPyO2, ZnP2O6, Si1-3xZnxP2xO2, Ge1-3xZnxP2xO2, TeOx, Si1-xTexO2+y, Ge1-xTexO2+y, Si1-3x-yGeyZnxP2xO2, Si1-xPxO2-xNx, Si—O—C, Si1-2yAlxPxO4, or BeF2.Type: GrantFiled: November 29, 2018Date of Patent: June 21, 2022Assignee: SKYWORKS SOLUTIONS, INC.Inventors: Michael David Hill, Peter Ledel Gammel
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Patent number: 11352290Abstract: The present application provides transparent glass-ceramics of ?-quartz of composition containing a small content of lithium, articles constituted at least in part of said glass-ceramics, glasses precursors of said glass-ceramics, and also a method of preparing said articles. Said glass-ceramics have a composition, free of arsenic oxide and antimony oxide, except for inevitable traces, expressed as percentages by weight of oxides, containing: 62% to 68% of SiO2; 17% to 21% of AI2O3; 1% to <2% of Li2O; 1% to 4% of MgO; 1% to 6% of ZnO; 0 to 4% of BaO; 0 to 4% of SrO; 0 to 1% of CaO; 1% to 5% of TiO2; 0 to 2% of ZrO2; 0 to 1% of Na2O; 0 to 1% of K2O; with Na2O+K2O+BaO+SrO+CaO<6%; optionally up to 2% of at least one fining agent comprising SnO2; and optionally up to 2% of at least one coloring agent.Type: GrantFiled: June 6, 2018Date of Patent: June 7, 2022Assignee: EUROKERAInventors: Marie Comte, Thiphaine Ogier, Philippe Lehuede
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Patent number: 11267749Abstract: A glass ceramic sintered body having a small dielectric loss in a high frequency band of 10 GHz or higher and stable characteristics against temperature variation and a wiring substrate using the same are provided. The glass ceramic sintered body contains crystallized glass, an alumina filler, silica, and strontium titanate. The content of the crystallized glass is 50 mass % to 80 mass %, the content of the alumina filler is 15.6 mass % to 31.2 mass % in terms of Al2O3, the content of silica is 0.4 mass % to 4.8 mass % in terms of SiO2, and the content of the strontium titanate is 4 mass % to 14 mass % in terms of SrTiO3.Type: GrantFiled: July 8, 2020Date of Patent: March 8, 2022Assignee: TDK CORPORATIONInventors: Shin Takane, Yousuke Futamata, Yasuharu Miyauchi
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Patent number: 11236012Abstract: A glass-ceramic that includes: SiO2 from about 35 mol % to about 80 mol %; B2O3 from about 10 mol % to about 50 mol %; P2O5 from about 10 mol % to about 50 mol %; and an optional addition of one or more of CaO, MgO and Bi2O3 from 0 mol % to about 5 mol %, wherein the glass-ceramic further comprises a boron-phosphate crystalline phase.Type: GrantFiled: March 28, 2019Date of Patent: February 1, 2022Assignee: Corning IncorporatedInventors: George Halsey Beall, Heather Debra Boek, Ling Cai, Jin Su Kim, Dean Michael Thelen, Mark Owen Weller
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Patent number: 11136261Abstract: The present disclosure relates to a lithium ion-conducting glass ceramic which comprises a residual glass phase that is also ion-conducting, a process for the production thereof as well as its use in a battery. The glass ceramic according to the present disclosure comprises a main crystal phase which is isostructural to the NaSICon crystal phase, wherein the composition can be described with the following formula: Li1+x?yMy5+Mx3+M2?x?y4+(PO4)3, wherein x is greater than 0 and at most 1, as well as greater than y. Y may take values of between 0 and 1. Here, the following boundary condition has to be fulfilled: (1+x?y)>1. Here, M represents a cation with the valence of +3, +4 or +5. M3+ is selected from Al, Y, Sc or B, wherein at least Al as trivalent cation is present. Independently thereof, M4+ is selected from Ti, Si or Zr, wherein at least Ti as tetravalent cation is present. Independently thereof, M5+ is selected from Nb, Ta or La.Type: GrantFiled: February 4, 2019Date of Patent: October 5, 2021Assignee: SCHOTT AGInventors: Meike Schneider, Andreas Roters, Jörg Schumacher, Rolf Samsinger
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Patent number: 11063252Abstract: A positive active material including a core including a lithium intercalation compound and a coating compound on a surface of the core, the coating compound including Li2MO3 and a solid electrolyte compound represented by Chemical Formula 1 [Li1.3+4xAl0.3M1.7?x(PO4)3], wherein 0?x?0.7, and M is an element selected from Ti, Cr, Ga, Fe, Sc, In, Y, La, Mg, Sr, and combinations thereof; and a rechargeable lithium battery includes the positive active material.Type: GrantFiled: March 8, 2017Date of Patent: July 13, 2021Assignee: Samsung SDI Co., Ltd.Inventor: Eun-Ok Oh
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Patent number: 10988408Abstract: A conversion material for a white or colored light source is provided. The material includes a matrix glass that, as bulk material, for a thickness of about 1 mm, has a pure transmission of greater than 80% in the wavelength region from 350 to 800 nm and in the region in which the primary light source emits light, wherein the sum of transmission and reflection of the sintered matrix glass without luminophore is at least greater than 80% in the spectral region from 350 nm to 800 nm and in the spectral region in which the primary light source emits light.Type: GrantFiled: March 9, 2018Date of Patent: April 27, 2021Assignee: SCHOTT AGInventors: Rainer Liebald, Claudia Stolz, Peter Brix, Simone Monika Ritter, Peter Nass, Dieter Goedeke, Sabine Pichler-Wilhelm, Sabrina Wimmer
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Patent number: 10865140Abstract: Embodiments of the present disclosure are directed to methods for inducing color change in glass and glass-ceramic articles. According to one embodiment, color change may be x-ray induced in glass or glass-ceramic articles. The method for x-ray inducing color change may include exposing the glass or glass-ceramic article to x-rays at a temperature of up to 200° C. to induce a colored area in the glass or glass-ceramic article. The glass or glass-ceramic article may comprise: 50-85 mole % SiO2; 5-25 mole % Al2O3; 0-15 mole % P2O5; 0-15 mole % B2O3; 5-25 mole % R2O, wherein R2O?Li2O+Na2O+K2O.Type: GrantFiled: December 10, 2018Date of Patent: December 15, 2020Assignee: CORNING INCORPORATEDInventors: John F Baum, Jr., Nicholas Francis Borrelli, Candy Elizabeth Card, Matthew John Dejneka, Eileen Marie Fanning, Karen Estelle Fitzsimmons
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Patent number: 10611665Abstract: The present disclosure is to provide a method of producing a LTP or LATP crystal particle that has reduced impurity contamination, high crystallinity, and excellent dispersibility. The method of producing a LTP or LATP crystal particle according to the present disclosure includes: preparing glass containing, in molar ratio, 1+x of Li2O, where 0?x?1, x of Al2O3, 4?2x of TiO2, 3+y of P2O5, where 1?y?4, and from more than y to less than 3y of ZnO; subjecting, after the preparation of glass, the glass to thermal treatment for crystallization; and selectively eluting a substance other than a LTP or LATP crystal through acid treatment.Type: GrantFiled: May 10, 2016Date of Patent: April 7, 2020Assignee: Sumita Optical Glass, Inc.Inventors: Tatsuya Tezuka, Dai Anzai
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Patent number: 10583457Abstract: To provide an electronic component having printing, which can achieve both of a moisture resistance capability and visibility of printing, and a method of manufacturing the same. A method of manufacturing an electronic component having printing, including preparing an electronic component before being subjected to printing, which is provided with a magnetic element body made of an alloy magnetic material containing a transition metal on a surface thereof, and a glass layer that contains Bi with which the magnetic element body is at least partly coated and does not contain a transition metal, and irradiating the electronic component before being subjected to printing with laser light having a wavelength of 1064 nm so that the laser light is transmitted through the glass layer, so that a printing portion is formed at a partial glass portion in a vicinity of an interface between the magnetic element body and the glass layer.Type: GrantFiled: March 6, 2017Date of Patent: March 10, 2020Assignee: TAIYO YUDEN CO., LTD.Inventors: Hideo Ando, Chiharu Hayashi, Toshimasa Suzuki
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Patent number: 10501363Abstract: A method for production of a photo-structurable glass element is provided. The method includes the steps of: fixing a blank of photo-structurable glass at a first end; heating of a deformation zone of the blank; and drawing the blank. The glass includes Si4+, a crystal-agonist, a crystal-antagonist, and a pair of nucleating agents. The crystal-agonist is selected from the group consisting of Na+, K+, Li+, and any combinations thereof. The crystal-antagonist is selected from the group consisting of Al3+, B3+, Zn2+, Sr2+, Sb3+, and any combinations thereof. The pair of nucleating agents include cerium and an agent selected from the group consisting of silver, gold, copper, and any combinations thereof. The crystal-agonist has a molar proportion cat.-% in relation to a molar proportion of Si4+ that is at least 0.3 and at most 0.85.Type: GrantFiled: May 18, 2016Date of Patent: December 10, 2019Assignee: SCHOTT AGInventors: Carsten Renz, Marten Walther, Lothar Niessner, Martin Feichtinger, Bianca Schreder, Junming Xue, Sean Qian
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Patent number: 10487002Abstract: The present invention pertains to glass containing, in terms of mass % on an oxide basis, 40-80% of SiO2, 1-30% of Al2O3, and 1-40% of CaO, the glass having dmisteinbergite as the crystalline phase. Such glass makes it difficult for cracks to progress and has exceptional crack resistance.Type: GrantFiled: August 24, 2018Date of Patent: November 26, 2019Assignee: AGC Inc.Inventors: Kei Maeda, Atsuo Yasumori
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Patent number: 10370291Abstract: A glass-ceramic includes a silicate-containing glass and crystals within the silicate-containing glass. The crystals include non-stoichiometric tungsten and/or molybdenum sub-oxides, and the crystals are intercalated with dopant cations.Type: GrantFiled: October 11, 2018Date of Patent: August 6, 2019Assignee: Corning IncorporatedInventors: Matthew John Dejneka, Jesse Kohl
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Patent number: 10322001Abstract: The present invention relates to an implant having a multilayered coating comprising a porous titanium-based layer on the implant, an optional interface titania layer on and/or in the porous titanium-based layer and a bioactive glass layer on and/or in the porous structure formed by the titanium-based and titania layer(s); as well as to a process for preparing an implant having a multilayered coating.Type: GrantFiled: April 13, 2011Date of Patent: June 18, 2019Assignee: Institut Jozef StefanInventors: Sasa Novak Krmpotic, Natasa Drnovsek, Gregor Murn
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Patent number: 10246371Abstract: An article that can include a glass including SiO2 from 25 mol % to 99 mol %, Al2O3 from 0 mol % to 50 mol %, WO3 plus MoO3 from 0.35 mol % to 30 mol %, and R2O from 0.1 mol % to 50 mol %. R2O is one or more of Li2O, Na2O, K2O, Rb2O and Cs2O. R2O minus Al2O3 is from ?35 mol % to 7 mol %. The glass includes at least one of: (i) RO from 0.02 mol % to 50 mol % and (ii) SnO2 is from 0.01 mol % to 5 mol %. RO is one or more of MgO, CaO, SrO, BaO and ZnO. The article can also include a glass-ceramic with at least one and one crystalline phase comprising an oxide, from 0.1 mol % to 100 mol % of the crystalline phase, of at least one of: (i) W, (ii) Mo, (iii) V and an alkali metal cation, and (iv) Ti and an alkali metal cation.Type: GrantFiled: December 13, 2017Date of Patent: April 2, 2019Assignee: CORNING INCORPORATEDInventors: Matthew John Dejneka, Jesse Kohl
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Patent number: 9997270Abstract: A lithium ion conductive substance is provided that is characterized by containing a compound wherein a composite oxide represented by Li1+x+yAlxTi2?xSiyP3?yO12 (0?x?1 and 0?y?1) is doped with at least one kind of element selected from Zr, Hf, Y, and Sm. Furthermore, a method for manufacturing the lithium ion conductive substance is provided that includes the following steps: (a) a step of forming an inorganic substance that contains predetermined quantities of a Li component, an Al component, a Ti component, a Si component, and a P component, into a sheet shape, and (b) a step of interposing between materials that contain at least one kind of element selected from Zr, Hf, Y, and Sm, and sintering, a sheet-shaped formed body obtained at step (a).Type: GrantFiled: September 1, 2015Date of Patent: June 12, 2018Assignee: National Institute of Advanced Industrial Science and TechnologyInventors: Koichi Hamamoto, Yoshinobu Fujishiro, Danila Victorovich Matveev
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Patent number: 9950949Abstract: The invention relates to a conversion material, in particular for a white or colored light source comprising a semiconductor light source as primary light source, comprising a matrix glass that, as bulk material, for a thickness d of about 1 mm, has a pure transmission ?i of greater than 80% in the wavelength region from 350 to 800 nm and in the region in which the primary light source emits light, wherein the sum of transmission and reflection of the sintered matrix glass without luminophore is at least greater than 80% in the spectral region from 350 nm to 800 nm and in the spectral region in which the primary light source emits light.Type: GrantFiled: April 29, 2009Date of Patent: April 24, 2018Assignee: SCHOTT AGInventors: Rainer Liebald, Claudia Stolz, Peter Brix, Simone Monika Ritter, Peter Nass, Dieter Goedeke, Sabine Pichler-Wilhelm, Sabrina Wimmer
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Patent number: 9770313Abstract: A prosthesis that contains zirconia and supplements a defective portion of a natural bone, and that is changed to a color approximate to that of the natural bone by a heat treatment after a ?-ray sterilization treatment. The color approximate to that of the natural bone has an L* value of 60 to 90, an a* value of ?5 to 10, and a b* value of ?5 to 10 in the L*a*b* color space. The highest temperature in the heat treatment is 100° C. to 300° C. The prosthesis is a fixture of a dental implant embedded into and bonded to a natural bone, an abutment, an implant crown, and the like.Type: GrantFiled: July 18, 2014Date of Patent: September 26, 2017Assignee: NANTOH. CO., LTDInventor: Teruo Ishiwata
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Patent number: 9614199Abstract: A feedthrough, for example through a part of a housing, such as a battery housing, is, for example, made of a metal, such as a light alloy, for example aluminum, an aluminum alloy, AlSiC, magnesium, a magnesium alloy, titanium, a titanium alloy, steel, stainless steel or high-grade steel. The housing part has at least one opening through which at least one conductor having a cross-section is guided in a glass or glass ceramic material. The conductor has at least two sections, a first section having a first, substantially round, for example a circular, cross section having a diameter in the region of the feedthrough through the glass or glass ceramic material, and a second section having a second, substantially non-round, for example a substantially rectangular cross-section, and the conductor is formed in one piece.Type: GrantFiled: December 10, 2013Date of Patent: April 4, 2017Assignee: Schott AGInventor: Helmut Hartl
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Patent number: 9463996Abstract: To provide a glass substrate for a display cover glass not only having excellent strength and antibacterial properties but also having a high transparency and a high visible transmittance suitable as a cover glass for a display device. A glass substrate for a display cover glass, which comprises a surface compressive stress layer and an antibacterial substance-containing layer formed on the glass substrate surface, characterized by having a ratio (T1/T2) of the transmittance T1 at a wavelength of 428 nm to the transmittance T2 at a wavelength of 650 nm of the glass substrate of at least 0.95, and a transmittance at a wavelength of 428 nm of at least 86% when the thickness of the glass substrate is from 0.1 to 3.0 mm.Type: GrantFiled: June 24, 2014Date of Patent: October 11, 2016Assignee: Asahi Glass Company, LimitedInventors: Hiroyuki Yamamoto, Yusaku Matsuo
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Patent number: 9326835Abstract: The invention relates to a process for preparing dental restorations, wherein a lithium silicate glass ceramic or a lithium silicate glass is used which contains at least 8.5 wt.-% transition metal oxide selected from the group consisting of oxides of yttrium, oxides of transition metals with an atomic number from 41 to 79 and mixtures of these oxides.Type: GrantFiled: August 22, 2014Date of Patent: May 3, 2016Assignee: Ivoclar Vivadent AGInventors: Christian Ritzberger, Wolfram Höland, Marcel Schweiger, Volker Rheinberger
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Patent number: 9321674Abstract: The invention relates to a lithium silicate glass ceramic, which contains at least 8.5 wt.-% transition metal oxide selected from the group consisting of oxides of yttrium, oxides of transition metals with an atomic number from 41 to 79 and mixtures of these oxides. The invention also relates to a corresponding lithium silicate glass, a process for the preparation of the glass ceramic and of the glass as well as their use.Type: GrantFiled: May 12, 2014Date of Patent: April 26, 2016Assignee: Ivoclar Vivadent AGInventors: Christian Ritzberger, Wolfram Höland, Marcel Schweiger, Volker Rheinberger
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Patent number: 9272944Abstract: A glass-ceramic is disclosed, this glass-ceramic includes at least the following constituents (in mol % on oxide basis): SiO2 1-30, Al2O3 0-20, B2O3 0-25, TiO2 10-70, RE2O3 0-35, BaO 5-35, SiO2+Al2O3+B2O3<25, where RE is lanthanum, another lanthanoid, or yttrium, and where Ti may be replaced in part, preferably up to 10%, by Zr, Hf, Y, Nb, V, Ta. A principal phase in the glass-ceramic is BaTi4O.Type: GrantFiled: May 21, 2014Date of Patent: March 1, 2016Assignee: SCHOTT AGInventors: Martun Hovhannisyan, Martin Letz, Gordon Kissl
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Patent number: 9257328Abstract: Methods and apparatus for forming a semiconductor on glass-ceramic structure provide for: subjecting an implantation surface of a donor semiconductor wafer to an ion implantation process to create an exfoliation layer of the donor semiconductor wafer; bonding the implantation surface of the exfoliation layer to a precursor glass substrate using electrolysis; separating the exfoliation layer from the donor semiconductor wafer to thereby form an intermediate semiconductor on precursor glass structure; sandwiching the intermediate semiconductor on precursor glass structure between first and second support structures; applying pressure to one or both of the first and second support structures; and subjecting the intermediate semiconductor on precursor glass structure to heat-treatment step to crystallize the precursor glass resulting in the formation of a semiconductor on glass-ceramic structure.Type: GrantFiled: November 26, 2008Date of Patent: February 9, 2016Assignee: Corning IncorporatedInventors: Christopher Paul Daigler, Kishor Purushottam Gadkaree, Joseph Frank Mach, Steven Alvin Tietje
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Patent number: 9206077Abstract: The invention relates to glass ceramics, which show high strength, high translucency, high chemical stability and which are still mechanically processible. The invention further refers to a method for producing a dental restoration comprising such glass or glass ceramic as well as the dental restoration itself.Type: GrantFiled: June 18, 2012Date of Patent: December 8, 2015Assignees: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e. V., VITA ZAHNFABRIK H. RAUTER GMBH & CO. KG, DEGUDENT GMBHInventors: Bernhard Durschang, Jörn Probst, Norbert Thiel, Michael Gödiker, Markus Vollmann, Udo Schusser, Carsten Wiesner
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Publication number: 20140336032Abstract: The invention relates to novel transparent glasses, vitroceramics, and transparent or translucent ceramics containing, in relation to the total composition of the glass, vitroceramic, or ceramic, at least 60 wt% of a composition having the following formula (I): (M1O)x(M2O)y(M3)2O3)z(Al2O3)100?x?y?z (I), where M1 is an element selected from among Ba and/or Sr, M2 is an element selected from among Mg or Ca, x and y are numbers such that 30?x+y?80, y is between 0% and 10% of x, M3 is an element selected from among B, Ga, or In, and z is a number between 0% and 10% of (100?x?y). The invention also relates to the method for manufacturing said compositions and to the uses of said compositions in the field of optics.Type: ApplicationFiled: November 30, 2012Publication date: November 13, 2014Inventors: Salaheddine Alahrache, Mathieu Allix, Guy Matzen, Francis Millot, Marina Licheron, Thierry Cardinal, Alain Garcia, Kholoud Al Saghir
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Patent number: 8853110Abstract: A transparent glass-ceramic materials contains a spinel solid solution as the main crystalline phase and is free of As2O3 and Sb2O3. Corresponding precursor alumino-silicate glasses, articles made of said transparent glass-ceramic materials as well as a method for manufacturing such articles, and structures comprising a sheet made of such glass-ceramic materials and electronic or optoelectronic devices comprising such structures are also disclosed. Some materials disclosed can be used as substrates for high temperature growth of high quality monocrystalline or polycrystalline silicon thin films. Structures including such substrates with such thin films thereon can be used in photovoltaic devices, flat panel devices and liquid crystal devices.Type: GrantFiled: November 3, 2011Date of Patent: October 7, 2014Assignee: Corning IncorporatedInventors: Etienne Almoric, Marie Jacqueline Monique Comte
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Patent number: 8772188Abstract: A glass-ceramic having at least two crystal phases, wherein at least one crystal phase has a positive temperature dependence of the resonance frequency ?f, at least one crystal phase has a negative temperature dependence of the resonance frequency ?f and the glass-ceramic has a resulting temperature dependence of the resonance frequency ?f of 0 ppm/K with a maximum deviation of +/?20 ppm/K, is described. Furthermore, a process for producing such a glass-ceramic and the use of the glass-ceramic are described.Type: GrantFiled: March 12, 2012Date of Patent: July 8, 2014Assignee: Schott AGInventors: Martin Letz, Stephan Knoener, Martina Dressler, Daniela Seiler, Bernd Hoppe, Michael Kluge
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Patent number: 8722188Abstract: 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: GrantFiled: December 31, 2009Date of Patent: May 13, 2014Assignee: Saint-Gobain Ceramics & Plastics, Inc.Inventors: Tihana Fuss, Laurie San-Miguel, Kevin R. Dickson, Walter T. Stephens
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Patent number: 8702885Abstract: A method of manufacturing ceramics includes: placing, on a base material, a first slurry in which a metal oxide powder is dispersed; applying a magnetic field to the first slurry to solidify the first slurry, thereby forming an under coat layer made of a first compact; placing, on the under coat layer, a second slurry containing a metal oxide powder constituting the ceramics; applying a magnetic field to the second slurry to solidify the second slurry, thereby forming a second compact to obtain a laminated body of the second compact and the under coat layer; and obtaining the ceramics made of the second compact by removing the under coat layer from the laminated body of the second compact and the under coat layer and then sintering the second compact, or sintering the laminated body of the second compact and the under coat layer and then removing the under coat layer.Type: GrantFiled: April 15, 2011Date of Patent: April 22, 2014Assignees: Canon Kabushiki Kaisha, University of YamanashiInventors: Takanori Matsuda, Tatsuo Furuta, Takayuki Watanabe, Jumpei Hayashi, Nobuhiro Kumada
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Patent number: 8685290Abstract: Disclosed is a plurality of glass-crystalline particles, wherein at least a portion of the glass-crystalline particles comprise a glass component and a crystalline component, and wherein the crystalline component comprises one or more metal oxides wherein the metal is selected from the group consisting of: Zn, Ca, Sr, Mg, Ba, and mixtures thereof.Type: GrantFiled: September 27, 2010Date of Patent: April 1, 2014Assignee: E I du Pont Nemours and CompanyInventors: Eric Lee Brantley, John T. Chaplinsky, Howard David Glicksman, James J. Krajewski, Brian J. Laughlin, Kurt Richard Mikeska, Lawrence V. Triboletti
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Patent number: 8545733Abstract: Disclosed is a process for the manufacture of glass-crystalline particles comprising a glass component and a crystalline component comprising the steps of: a) providing a precursor solution comprising a solvent, a glass component composition, and a crystalline component composition; b) forming an aerosol comprising finely divided droplets of the precursor solution, wherein the droplet concentration which is below the concentration where collisions and subsequent coalescence of the droplets results in a 10% reduction in droplet concentration; c) heating the aerosol wherein, upon heating, glass-crystalline particles are formed, wherein the glass-crystalline particles comprise a glass component and a crystalline component, and wherein the crystalline component comprises one or more metal oxides; and d) isolating the glass-crystalline particles.Type: GrantFiled: September 27, 2010Date of Patent: October 1, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Eric Lee Brantley, John T. Chaplinsky, Howard David Glicksman, James J. Krajewski, Brian J. Laughlin, Kurt Richard Mikeska, Lawrence V. Triboletti
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Patent number: 8476174Abstract: There is provided a lithium ion conductive glass-ceramics which is dense, contains few microvoids causing the decrease in lithium ion conductivity, and achieves good lithium ion conductivity. A glass-ceramics which comprises at least crystallines having an LiTi2P3O12 structure, the crystallines satisfying 1<IA113/IA104?2, wherein IA104 is the peak intensity assigned to the plane index 104 (2?=20 to 21°), and IA113 is the peak intensity assigned to the plane index 113 (2?=24 to 25°) as determined by X-ray diffractometry.Type: GrantFiled: October 30, 2009Date of Patent: July 2, 2013Assignee: Ohara, Inc.Inventor: Yasushi Inda
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Patent number: 8268286Abstract: Disclosed herein is a spinel article. The article comprises a spinel material, wherein the spinel material has a monomodal grain size distribution with average grain sizes of less than or equal to about 15 micrometers, and a biaxial flexural strength of greater than or equal to about 300 megapascals when measured by a ring-on-ring flexural test as per ASTM Standard C1499-08. Disclosed herein too is a spinel article manufactured by a method comprising calcining a spinel powder; milling the powder in a milling medium; granulating the powder; screening the powder to a mesh size of about 40 to about 200 mesh; pressing the powder to form an article; burning out organics from the article; sintering the article; and hot isostatically pressing the article.Type: GrantFiled: November 6, 2008Date of Patent: September 18, 2012Assignee: General Electric CompanyInventors: Milivoj Konstantin Brun, Anteneh Kebbede, Sean Michael Sweeney, Timothy James Yosenick
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Patent number: 8263509Abstract: A process for the production of a glass-ceramic comprises the following steps: a) providing a mixture comprising at least SiO2, Al2O3, BaO and TiO2, b) melting the mixture in order to produce a glass phase, c) cooling the glass phase, and d) ceramicizing the glass phase. In the process, the glass phase is heated over the course of at most 5 minutes, preferably over the course of at most 3 minutes, to a temperature in the region of the crystallization temperature of Ba1-xZ1xTi1-yZ2yO3, whereby Z1 is an element selected from the group consisting of Sr, Ca, Ce, Pb, La and Sm, whereby Z2 is an element selected from the group consisting of Zr, Hf, Nb, V, Y, Sc and Ta, and whereby x and y are each independently of one another 0?x,y?0.5, preferably 0?x,y?0.1, but substantially below the crystallization temperature of Ba[Al2Si2O8].Type: GrantFiled: June 4, 2010Date of Patent: September 11, 2012Assignee: Schott AGInventors: Bernd Hoppe, Daniela Seiler, Bernd Ruedinger, Ina Mitra, Maria-Louisa Reich, Martin Letz, Michael Kluge
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Patent number: 8143181Abstract: A process for producing an optical glass fiber from crystal-glass phase material. In one embodiment, the process includes the step of providing a molten crystal-glass phase material in a container, wherein the temperature of the molten crystal-glass phase material is at or above the melting temperature of the molten crystal-glass phase material, Tm, to allow the molten crystal-glass phase material is in liquid phase. The process further includes the step of cooling the molten crystal-glass phase material such that the temperature of the molten crystal-glass phase material, T1, is reduced to below Tm to cause the molten crystal-glass phase material to be changed from the liquid phase to a viscous melt.Type: GrantFiled: May 6, 2009Date of Patent: March 27, 2012Assignee: Northwestern UniversityInventors: Mercouri G. Kanatzidis, In Chung
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Patent number: 8141387Abstract: The process of making the glass-ceramic includes ceramicizing a starting glass at a heating or cooling rate during the ceramicization of at least 10 K/min, so that the glass-ceramic contains at least 50% by volume of ferroelectric crystallites with a maximum diameter of from 20 to 100 nm and not more than 10% by volume of nonferroelectric crystallitesis. The glass ceramic produced by the process contains no pores or not more than 0.01% by volume of the pores and a value of e?·V2max of the glass-ceramic is at least 20 (MV/cm)2, wherein e? is the dielectric constant at 1 kHz and Vmax is the breakdown voltage per unit thickness. The ferroelectric crystallites preferably have a perovskite structure and are composed of substantially pure or doped BaTiO3 and/or BaTi2O5.Type: GrantFiled: February 25, 2009Date of Patent: March 27, 2012Assignee: Schott AGInventors: Martin Letz, Mark J. Davis, Bernd Ruedinger, Bernd Hoppe, Bianca Schreder, Maria-Louisa Aigner, Daniela Seiler
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Patent number: 8080490Abstract: The invention relates to an antimicrobial phosphate glass having the following composition in percent by weight on an oxide basis: P2O5>66-80 percent by weight; SO30-40 percent by weight; B203 0-1 percent by weight; Al2O3>6.2-10 percent by weight; SiO2 0-10 percent by weight; Na2O>9-20 percent by weight; CaO 0-25 percent by weight; MgO 0-15 percent by weight; SrO 0-15 percent by weight; BaO 0-15 percent by weight; ZnO>0-25 percent by weight; Ag2O 0-5 percent by weight; CuO 0-10 percent by weight; GeO2 0-10 percent by weight; TeO2 0-15 percent by weight; Cr2O3 0-10 percent by weight; J 0-10 percent by weight; F 0-3 percent by weight.Type: GrantFiled: February 20, 2004Date of Patent: December 20, 2011Assignee: Schott AGInventors: Jörg Hinrich Fechner, José Zimmer, Karine Seneschal
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Patent number: 8053382Abstract: Optical glass constituted by an amorphous matrix and crystal grains dispersed in the amorphous matrix, wherein the amorphous matrix comprises a first oxide of at least one of silicon oxide and phosphor oxide and a second oxide of at least one of titanium oxide and zirconium oxide, and wherein the crystal grains is at least one of titanium oxide, zirconium oxide and silicon, an average grain size of the titanium oxide grain being 3 nm to 20 nm, and the average grain size of the silicon crystal being 3 nm to 8 nm.Type: GrantFiled: October 2, 2008Date of Patent: November 8, 2011Assignee: Hitachi, Ltd.Inventor: Hiroki Yamamoto
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Patent number: 8039407Abstract: The invention provides a method for producing a glass ceramic comprising the steps of melting a starting glass that is free from alkali, except for incidental contamination, and that contains at least one garnet-forming agent and at least one oxide of a lanthanoid; grinding the starting glass to produce a glass frit; molding by pressing and sintering the glass frit until at least one garnet phase containing lanthanoids is formed. A glass ceramic produced in this way may contain 5-50% by weight of SiO2, 5-50% by weight of Al2O3 and 10-80% by weight of at least one oxide selected from the group formed by Y2O3, Lu2O3, Sc2O3, Gd2O3, Yb2O3, Ce2O3, as well as 0.1-30% by weight of at least one oxide selected from the group formed by B2O3, Th2O3, and oxides of the lanthanoids, except Lu2O3, Gd2O3, Yb2O3, Ce2O3. Such a glass ceramic is suited especially for down conversion of excitation radiation in the blue and in the UV region of the spectrum.Type: GrantFiled: November 18, 2010Date of Patent: October 18, 2011Assignee: Schott AGInventors: Karine Seneschal-Merz, Bernd Hoppe, Dirk Sprenger, Martin Letz, Thilo Zachau, Friedrich Siebers
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Publication number: 20110129674Abstract: The present invention relates to a glass composition comprising crystalline phases, and to glass flakes produced therefrom. These glass flakes can be used as base substrate for effect pigments. The glass flakes can furthermore be used in paints, coatings, printing inks, plastics and in cosmetic formulations. The glass flakes are converted into glass-ceramics, and are present in one of the following composition ranges I or II in % by weight: I: 40-50 SiO2, 10-20 B2O3, 10-20 Na2O, 15-30 TiO2; II: 10-60 SiO2, 5-30 B2O3, 5-40 TiO2, 2-20 Nb2O5, 2-20 Fe2O3, 5-40 Na2O+K2O+CaO+SrO+BaO.Type: ApplicationFiled: May 15, 2009Publication date: June 2, 2011Applicant: MERCK PATENT GESELLSCHAFT MIT BESCHRANKTER HAFTUNGInventors: Reinhold Rueger, Anke Geisen, Gerald Karn
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Patent number: 7947616Abstract: Presently described are retroreflective articles, such as pavement markings, that comprise transparent microspheres partially embedded in a (e.g., polymeric) binder. Also described are (e.g., glass-ceramic) microspheres, methods of making microspheres, as well as compositions of glass materials and compositions of glass-ceramic materials. The microspheres generally comprise lanthanide series oxide(s), titanium oxide (TiO2), and optionally zirconium oxide (ZrO2).Type: GrantFiled: May 12, 2010Date of Patent: May 24, 2011Assignee: 3M Innovative Properties CompanyInventors: Matthew H. Frey, Anatoly Z. Rosenflanz, Kenton D. Budd
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Patent number: 7910505Abstract: The invention provides a method for producing a glass ceramic comprising the steps of melting a starting glass that is free from alkali, except for incidental contamination, and that contains at least one garnet-forming agent and at least one oxide of a lanthanoid; grinding the starting glass to produce a glass frit; molding by pressing and sintering the glass frit until at least one garnet phase containing lanthanoids is formed. A glass ceramic produced in this way may contain 5-50 % by weight of SiO2, 5-50 % by weight of Al2O3 and 10-80 % by weight of at least one oxide selected from the group formed by Y2O3, Lu2O3, Sc2O3, Gd2O3, Yb2O3, Ce2O3, as well as 0.1-30% by weight of at least one oxide selected from the group formed by B2O3, Th2O3, and oxides of the lanthanoids, except Lu2O3, Gd2O3, Yb2O3, Ce2O3. Such a glass ceramic is suited especially for down conversion of excitation radiation in the blue and in the UV region of the spectrum.Type: GrantFiled: June 4, 2007Date of Patent: March 22, 2011Assignee: Schott AGInventors: Karine Seneschal-Merz, Bernd Hoppe, Dirk Sprenger, Martin Letz, Thilo Zachau, Friedrich Siebers
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Patent number: 7906444Abstract: The invention relates to a glass ceramic armour material consisting (in % by weight in relation to oxide base) of 5-33 SiO2, 20-50 Al2O3, 5-40 MgO, 0-15 B2O3, 0.1-30 Y2O3, Ln2O3, As2O3, Nb2O3 and/or Sc2O3 and 0-10 P2O5. The inventive armour material can also be reinforced with inorganic reinforcing fibres in a quantity of 5-65% by weight, preferably consisting of C, SiC, Si3N4, Al2O3, ZrO2 or Sialon. Said armour material is characterised in that it exhibits a high elasticity modulus and is producible from green glass without to fear a premature crystallisation.Type: GrantFiled: August 2, 2006Date of Patent: March 15, 2011Assignee: Schott AGInventors: Rainer Liebald, Wolfram Beier, Jochen Alkemper, Thilo Zachau, Dirk Sprenger
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Publication number: 20110028298Abstract: A process for the production of a glass-ceramic comprises the following steps: a) providing a mixture comprising at least SiO2, Al2O3, BaO and TiO2, b) melting the mixture in order to produce a glass phase, c) cooling the glass phase, and d) ceramicizing the glass phase. In the process, the glass phase is heated over the course of at most 5 minutes, preferably over the course of at most 3 minutes, to a temperature in the region of the crystallization temperature of Ba1-xZ1xTi1-yZ2yO3, whereby Z1 is an element selected from the group consisting of Sr, Ca, Ce, Pb, La and Sm, whereby Z2 is an element selected from the group consisting of Zr, Hf, Nb, V, Y, Sc and Ta, and whereby x and y are each independently of one another 0?x,y?0.5, preferably 0?x,y?0.1, but substantially below the crystallization temperature of Ba[Al2Si2O8].Type: ApplicationFiled: June 4, 2010Publication date: February 3, 2011Inventors: Bernd HOPPE, Daniela Seiler, Bernd Ruedinger, Ina Mitra, Maria-Louisa Reich, Martin Letz, Michael Kluge
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Patent number: 7875565Abstract: The invention is directed to transparent glass-ceramic materials for use in transparent armor systems. Applications include armor systems for ground vehicles and aircraft as well as personal protective equipment. The glass-ceramic materials according to the invention exhibit a ballistic limit vs. areal density line slope of 1.0 or greater, preferably 1.1 or greater and more preferably 1.2 or greater. The crystalline phase of the glass ceramic materials may include ?-quartz, spinel, spinel solid solutions, mullite and phases known in the art to be transparent.Type: GrantFiled: February 23, 2007Date of Patent: January 25, 2011Assignee: Corning IncorporatedInventors: Linda Ruth Pinckney, Jian-Zhi Jay Zhang, Carl Franklin Cline
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Publication number: 20110014423Abstract: A ceramic powder composition and an optoelectronic device substrate utilizing the ceramic powder composition are disclosed. The optoelectronic device substrate is formed by sintering a ceramic powder composition including 4 to 97 wt % (weight percent) of zircon, 0 to 60 wt % of silicon dioxide, and 0 to 80 wt % of alumina, wherein the sintered ceramic substrate includes first and second crystalline phases, the first crystalline phase is zircon, and the second crystalline phase is at least one of or a combination of alumina, silicon dioxide, and zirconia crystalline phases, furthermore, the second crystalline phase can also includes a mullite crystalline phase.Type: ApplicationFiled: December 31, 2009Publication date: January 20, 2011Inventors: Yu-Hsin YEH, Jiin-Jyh Shyu, Ren-Der Jean, Tzer-Shen Lin
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Patent number: 7846857Abstract: The invention relates to dental glass-ceramics and a process for producing them and their use, with these comprising at least one crystal phase containing xenotime or monazite or mixtures thereof.Type: GrantFiled: May 31, 2006Date of Patent: December 7, 2010Assignee: Ivoclar Vivadent AGInventors: Wolfram Höland, Christian Ritzberger, Volker Rheinberger, Elke Apel