Additive Contains Metal, Boron, Or Silicon Patents (Class 423/275)
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Patent number: 10424790Abstract: An object of the present invention is to provide a non-aqueous electrolyte secondary battery which has a large charge/discharge capacity, has a small irreversible capacity, and is capable of effectively using an active material. This object can be achieved by a material for a non-aqueous electrolyte secondary battery anode; a specific surface area determined by a BET method being not greater than 30 m2/g; an atomic ratio (H/C) of hydrogen atoms to carbon atoms determined by elemental analysis being not greater than 0.1; an average particle size being not greater than 50 ?m; and a diffraction intensity ratio (R-value) determined by Equation (1) being not greater than 1.Type: GrantFiled: August 10, 2015Date of Patent: September 24, 2019Assignee: KUREHA CORPORATIONInventors: Naohiro Sonobe, Kazuhiko Shimizu
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Patent number: 10186403Abstract: A tablet for a plasma coating system having a first part that includes a first material having a first sublimation point at a first pressure and a second part that is disposed on the first part and comprises a second material having a second melting point at the first pressure, wherein the second melting point is lower than the first sublimation point.Type: GrantFiled: October 5, 2015Date of Patent: January 22, 2019Assignee: Samsung Display Co., Ltd.Inventors: Hun Kim, Jin-Woo Park
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Patent number: 10053599Abstract: A method for polymerizing a composition including hydridosilanes and subsequently using the polymers to produce silicon containing layers, comprising the following steps: a) providing a substrate; b) providing a composition including at least one hydridosilane that is dissolved in at least one organic and/or inorganic solvent, or including at least one hydridosilane that is already present in liquid form without solvent, wherein the hydridosilanes comprise at least one linear and/or one branched hydridosilane of the general formula SinH2n+2, where n?3, and/or a cyclic hydridosilane of the general formula SinH2n, where n?3; c) polymerizing the composition from step b) by way of acoustic cavitation; and d) coating the surface of the substrate with reaction products from step c).Type: GrantFiled: November 26, 2014Date of Patent: August 21, 2018Assignee: Forschungszentrum Juelich GmbHInventor: Andrew Paolo Cadiz Bedini
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Patent number: 9630904Abstract: According to the present invention, a molded catalyst for use in the production of methyl methacrylate can be provided. The molded catalyst comprises synthetic faujasite-type zeolite and a layered magnesium silicate compound, wherein the sulfur content in the layered magnesium silicate compound is 0.10% by weight or less. According to the present invention, a method for producing methyl methacrylate can also be provided. The method is characterized by comprising a step of carrying out a gas-phase catalytic reaction of methyl ?-hydroxyisobutyrate using the above-mentioned molded catalyst for use in the production of methyl methacrylate.Type: GrantFiled: December 22, 2014Date of Patent: April 25, 2017Assignee: MITSUBISHI GAS CHEMICAL COMPANY, INC.Inventors: Katsumi Higuchi, Saori Hirokawa, Yuuichi Sugano
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Patent number: 8980202Abstract: A method of making cerium-containing metal oxide nanoparticles in non-polar solvent eliminates the need for solvent shifting steps. The direct synthesis method involves: (a) forming a reaction mixture of a source of cerous ion and a carboxylic acid, and optionally, a hydrocarbon solvent; and optionally further comprises a non-cerous metal ion; (b) heating the reaction mixture to oxidize cerous ion to ceric ion; and (c) recovering a nanoparticle of either cerium oxide or a mixed metal oxide comprising cerium. The cerium-containing oxide nanoparticles thus obtained have cubic fluorite crystal structure and a geometric diameter in the range of about 1 nanometer to about 20 nanometers. Dispersions of cerium-containing oxide nanoparticles prepared by this method can be used as a component of a fuel or lubricant additive.Type: GrantFiled: November 14, 2011Date of Patent: March 17, 2015Inventors: Peter Jerome Cowdery-Corvan, Lyn Marie Irving, Richard Kenneth Hailstone, Kenneth Joseph Reed, Thomas Dale Allston, Carly Louise Augustyn
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Publication number: 20140349112Abstract: A nitride crystal is characterized in that, in connection with plane spacing of arbitrary specific parallel crystal lattice planes of the nitride crystal obtained from X-ray diffraction measurement performed with variation of X-ray penetration depth from a surface of the crystal while X-ray diffraction conditions of the specific parallel crystal lattice planes are satisfied, a uniform distortion at a surface layer of the crystal represented by a value of |d1?d2|/d2 obtained from the plane spacing d1 at the X-ray penetration depth of 0.3 ?m and the plane spacing d2 at the X-ray penetration depth of 5 ?m is equal to or lower than 2.1×10?3.Type: ApplicationFiled: August 8, 2014Publication date: November 27, 2014Inventors: Keiji ISHIBASHI, Tokiko KAJI, Seiji NAKAHATA, Takayuki NISHIURA
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Patent number: 8883865Abstract: A process for making cerium-containing oxide nanoparticles includes providing an aqueous reaction mixture containing a source of cerous ion, optionally a source of one or more metal ions (M) other than cerium, a source of hydroxide ion, at least one monoether carboxylic acid nanoparticle stabilizer wherein the molar ratio of said monoether carboxylic acid nanoparticle stabilizers to total metal ions is greater than 0.2, and an oxidant at an initial temperature in the range of about 20° C. to about 95° C. Temperature conditions are provided effective to enable oxidation of cerous ion to ceric ion, thereby forming a product dispersion of cerium-containing oxide nanoparticles, optionally containing one or more metal ions (M), Ce1-xMxO2-?, wherein “x” has a value from about 0.0 to about 0.95. The nanoparticles may have a mean hydrodynamic diameter from about 1 nm to about 50 nm, and a geometric diameter of less than about 45 nm.Type: GrantFiled: May 13, 2010Date of Patent: November 11, 2014Assignee: Cerion Technology, Inc.Inventors: Albert Gary DiFrancesco, Richard K. Hailstone, Kenneth J. Reed, Gary R. Prok
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Patent number: 8858908Abstract: A method of producing an n-type group III nitride single crystal includes putting raw materials that include at least a substance including a group III element, an alkali metal, and boron oxide into a reaction vessel; melting the boron oxide by heating the reaction vessel to a melting point of the boron oxide; forming a mixed melt which includes the group III element, the alkali metal, and the boron oxide, in the reaction vessel by heating the reaction vessel to a crystal growth temperature of a group III nitride; dissolving nitrogen into the mixed melt by bringing a nitrogen-containing gas into contact with the mixed melt; and growing an n-type group III nitride single crystal, which is doped with oxygen as a donor, from the group III element, the nitrogen, and oxygen in the boron oxide that are dissolved in the mixed melt.Type: GrantFiled: August 30, 2011Date of Patent: October 14, 2014Assignee: Ricoh Company, Ltd.Inventor: Hirokazu Iwata
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Publication number: 20140234194Abstract: A sublimation grown SiC single crystal includes vanadium dopant incorporated into the SiC single crystal structure via introduction of a gaseous vanadium compound into a growth environment of the SiC single crystal during growth of the SiC single crystal.Type: ApplicationFiled: October 28, 2013Publication date: August 21, 2014Applicant: II-VI IncorporatedInventors: Ilya Zwieback, Thomas E. Anderson, Avinash K. Gupta, Michael C. Nolan, Bryan K. Brouhard, Gary E. Ruland
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Publication number: 20140205527Abstract: A method of producing a GaAs single crystal having high carrier concentration and high crystallinity and to provide a GaAs single crystal wafer using such a GaAs single crystal. In the method of producing a GaAs single crystal, a vertical boat method is performed with a crucible receiving a seed crystal, a Si material, a GaAs material serving as an impurity, solid silicon dioxide, and a boron oxide material, thereby growing a GaAs single crystal.Type: ApplicationFiled: May 16, 2012Publication date: July 24, 2014Applicant: DOWA ELECTRONICS MATERIALS CO., LTD.Inventors: Ryoichi Nakamura, Motoichi Murakami, Takehiro Miyaji
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Patent number: 8697019Abstract: Nanostructured manganese-containing compositions having reduced manganese dissolution and methods of making and using the same are provided. In one embodiment, a composition of matter comprises a nanostructured oxide or hydroxide doped with Mn4+. The composition of matter can be made by forming a nanostructured oxide or hydroxide material doped with Mn3+ and oxidizing the Mn3+ to Mn4+ to reduce dissolution of the manganese in the nanostructured oxide or hydroxide material. In another embodiment, a method of reducing dissolution of manganese present in a nanostructured MnO2 material comprises: doping a nanostructured MnO2 material with Fe3+ to reduce the dissolution of the manganese.Type: GrantFiled: April 30, 2008Date of Patent: April 15, 2014Assignee: Inframat CorporationInventors: Huimin Chen, Lei Jin
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Publication number: 20140054505Abstract: Apparatus and methods of use thereof for the production of carbon-based and other nanostructures, as well as fuels and reformed products, are provided.Type: ApplicationFiled: February 24, 2012Publication date: February 27, 2014Applicant: Rutgers, The State University of New JerseyInventors: Stephen D. Tse, Nasir K. Memon, Bernard H. Kear
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Publication number: 20130251615Abstract: A gettered polycrystalline group III metal nitride is formed by heating a group III metal with an added getter in a nitrogen-containing gas. Most of the residual oxygen in the gettered polycrystalline nitride is chemically bound by the getter. The gettered polycrystalline group III metal nitride is useful as a raw material for ammonothermal growth of bulk group III nitride crystals.Type: ApplicationFiled: May 14, 2013Publication date: September 26, 2013Applicant: SORAA, INC.Inventors: MARK P. D'EVELYN, DERRICK S. KAMBER
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Patent number: 8535633Abstract: Process for the production of doped metal oxide particles, wherein the doping component is present on the surface in the form of domains, wherein in a first reaction zone, an oxidizable and/or —hydrolysable metal compound as dopant together with an atomization gas is atomized into a flow of metal oxide particles in a carrier gas, wherein the mass flow of the metal oxide particles und —the mass flow of the dopant are selected such that the doped metal oxide particles contain 10 ppm to 10 wt.Type: GrantFiled: October 10, 2006Date of Patent: September 17, 2013Assignee: Evonik Degussa GmbHInventors: Kai Schumacher, Rainer Golchert, Helmut Roth, Harald Alff, Matthias Rochnia
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Publication number: 20130224488Abstract: The present invention refers to a nanomaterial synthesis process from the decomposition and subsequent reaction among common and economical insoluble precursors, or precursors which hydrolyze in contact with water, which are incorporated in the internal phase of an emulsion. These insoluble precursors are introduced in the internal phase of an emulsion, then being subject to decomposition and subsequent reaction in the solid state, under shockwave effect during the detonation of the emulsion, the nanomaterial with the intended structure being in the end obtained. The process of the present invention therefore allows obtaining a wide range of nanomaterial as composites or binary, ternary structures or higher structures, with small-sized homogenous primary particles, applicable to several technological fields.Type: ApplicationFiled: October 14, 2011Publication date: August 29, 2013Applicant: INNOVNANO - MATERIAIS AVANCADOS, S.A.Inventors: Elsa Marisa Dos Santos Antunes, João Manuel Calado Da Silva, Ana Lúcia Costa Lagoa
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Publication number: 20130183223Abstract: The present invention relates to a rapid and metal-free process for preparing high order hydridosilane compounds from low order hydridosilane compounds, wherein at least one low order hydridosilane compound (I) is thermally reacted in the presence of at least one hydridosilane compound (II) having a weight average molecular weight of at least 500 g/mol, to the hydridosilane compounds obtainable by the process and to their use.Type: ApplicationFiled: September 27, 2011Publication date: July 18, 2013Applicant: Evonik Degussa GmbHInventors: Stephan Wieber, Matthias Patz, Jutta Hessing, Janette Klatt
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Publication number: 20130164411Abstract: The present invention concerns a process for treating water and the use of calcium carbonate in such a process. In particular, the present invention is directed to a process for remineralization of water comprising the steps of providing feed water, and injecting gaseous carbon dioxide and a slurry into the feed water, wherein the slurry comprises micronized calcium carbonate.Type: ApplicationFiled: August 10, 2011Publication date: June 27, 2013Inventors: Michael Skovby, Martine Poffet, Matthias Buri, René Vinzenz Blum
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Patent number: 8470289Abstract: Catalytic structures are provided comprising octahedral tunnel lattice manganese oxides ion-exchanged with metal cations or mixtures thereof. The structures are useful as catalysts for the oxidation of alkanes and may be prepared by treating layered manganese oxide under highly acidic conditions, optionally drying the treated product, and subjecting it to ion exchange.Type: GrantFiled: June 27, 2008Date of Patent: June 25, 2013Assignee: ExxonMobil Chemical Patents Inc.Inventors: Helge Jaensch, Wilfried J. Mortier
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Patent number: 8465723Abstract: Provided is an arsenic-containing solid comprising 100 parts by mass of a scorodite-type iron-arsenic compound and at least 1 part by mass of an iron oxide compound added thereto, in which the scorodite-type iron-arsenic compound is produced by adding an oxidizing agent to an aqueous acidic solution that contains a 5-valent arsenic (V) ion and a 2-valent iron (II) ion, then promoting the precipitation of an iron-arsenic compound with stirring the liquid, and finishing the precipitation thereof within a range where the pH of the liquid is at most 1.2. The iron oxide compound includes goethite, hematite and their mixture, preferably having a BET specific surface area of at least 3 m2/g, more preferably at least 20 m2/g.Type: GrantFiled: March 13, 2008Date of Patent: June 18, 2013Assignee: Dowa Metals & Mining Co., Ltd.Inventors: Tetsuo Fujita, Ryoichi Taguchi, Hisashi Kubo
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Patent number: 8454930Abstract: The present invention relates to a mayenite-type compound in which a part of Ca of a mayenite-type compound containing Ca, Al and oxygen is substituted by at least one kind of an atom M selected from the group consisting of Be, Mg and Sr, in which the mayenite-type compound has an atom number ratio represented by M/(Ca+M) of from 0.01 to 0.50, and at least a part of free oxygen ions in a mayenite-type crystal structure are substituted by anions of an atom having electron affinity smaller than that of an oxygen atom.Type: GrantFiled: February 25, 2011Date of Patent: June 4, 2013Assignee: Asahi Glass Company, LimitedInventors: Kazuhiro Ito, Satoru Watanabe, Naomichi Miyakawa, Setsuro Ito
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Patent number: 8414854Abstract: This invention relates to crystalline boehmitic aluminas the crystallites of which exhibit unusual dimensional differences in the space directions 020 and 120. This invention further relates to a method for preparing such aluminas and the follow-up products obtained therefrom by calcination.Type: GrantFiled: August 13, 2008Date of Patent: April 9, 2013Assignee: Sasol Germany GmbHInventors: Klaus Noweck, Jürgen Schimanski, Jens Juhl, Frank Michael Bohnen, Reiner Glöckler, Arnold Meyer
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Patent number: 8399092Abstract: A zinc oxide particle having large particle diameter and being high-density is provided. An exoergic resin composition, an exoergic grease and an exoergic coating composition containing the zinc oxide particle exhibit an excellent exoergic property. The zinc oxide particle being high-density, has a density of 4.0 g/cm3 or more, median size (D50) of 17 to 10000 ?m and tap bulk density of 3.10 g/cm3 or more.Type: GrantFiled: April 26, 2010Date of Patent: March 19, 2013Assignee: Sakai Chemical Industry Co., Ltd.Inventors: Satoru Sueda, Atsuki Terabe, Hiroyuki Izumikawa, Mitsuo Hashimoto
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Patent number: 8388928Abstract: Provided is an apparatus for producing magnesium-containing zinc oxide, including: zinc vapor producing means 11 which produces zinc vapor by heating metallic zinc; magnesium vapor producing means 15 which produces magnesium vapor by heating metallic magnesium; mixed vapor producing means 20 which produces mixed vapor by mixing the zinc vapor and the magnesium vapor; and oxidizing gas contact means 19 which produces magnesium-containing zinc oxide by bringing an oxidizing gas into contact with the mixed vapor. The content of zinc in the mixed vapor is adjusted to be higher than that of magnesium.Type: GrantFiled: June 4, 2010Date of Patent: March 5, 2013Assignee: Ube Material Industries, LtdInventor: Koji Shibata
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Patent number: 8377414Abstract: This disclosure provides a process for preparing mesoporous amorphous hydrous oxide of titanium, comprising formation of a precipitate comprising an ionic porogen and a hydrolyzed compound comprising titanium from an aqueous mixture in the pH range of 5 to 10; and removing the ionic porogen from the precipitate to recover a mesoporous hydrous oxide of titanium, the ionic porogen being in sufficient amount and the conditions of precipitating being effective for producing a mesoporous hydrous oxide of titanium having a surface area of at least about 400 m2/g and a pore volume of at least 0.4 cc/g.Type: GrantFiled: December 21, 2011Date of Patent: February 19, 2013Assignee: E I du Pont de Nemours and CompanyInventor: Carmine Torardi
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Publication number: 20120315343Abstract: A synchronized water is disclosed, in which all single water molecules at the same time are arranged in an identical way to a stable homogeneous microstructure, wherein said synchronized water in a distilled condition and at atmospheric pressure has a) a density of from 0.997855 to 0.998836 g/ml at 22° C., b) a water temperature at the freezing point of from ?6.7° C. to ?8.2° C., c) a melting point of from 0.1° C. to 0.2° C., d) a surface tension of from 72.3 to 72.7 dyn/cm at 22 and e) a dielectric constant of from 82.4 to 82.6 F/m, as well as a method for preparation thereof and different uses thereof.Type: ApplicationFiled: June 12, 2012Publication date: December 13, 2012Inventor: Benny JOHANSSON
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Patent number: 8298506Abstract: Titanium dioxide particles is doped with a rare earth element. The doping ratio of the rare earth element is within a range more than 0 at % and not more than 5.0 at %, and the rare earth element is substituted for titanium atoms in the unit lattice of titanium dioxide so that the titanium dioxide particles emit light attributable to the rare earth element when the titanium dioxide particles are irradiated with light having the absorption wavelength of titanium dioxide and showing a peak at 360 nm.Type: GrantFiled: July 19, 2011Date of Patent: October 30, 2012Assignee: National Institute for Materials ScienceInventors: Jiguang Li, Takamasa Ishigaki
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Patent number: 8287832Abstract: A hydrothermal method of synthesis of a family of rare-earth Group 5 oxides, where the Group 5 oxide is a niobate or tantalate. The rare-earth Group 5 oxides can be doped with suitable emitter ions to form nanophosphors.Type: GrantFiled: September 15, 2010Date of Patent: October 16, 2012Assignee: Sandia CorporationInventors: May D. Nyman, Lauren E. S. Rohwer, James E. Martin
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Publication number: 20120237424Abstract: A method of producing a titanium dioxide film with dopant uniformly dispersed throughout the entirety of the film The method involves deposition of dopant, concurrently or sequentially, with titanium before oxidation of the titanium. No separate doping step is required in this invention since the doping step occurs in-situ during oxidation process. The amount of dopant incorporated into a titanium dioxide film is controllable by varying the thickness and/or number of dopant layers deposited. Furthermore, dispersion of dopant throughout the titanium dioxide film is more uniform in this invention as multiple layers of dopant may be employed.Type: ApplicationFiled: December 7, 2009Publication date: September 20, 2012Inventor: Zuruzi Bin Abu Samah
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Patent number: 8216675Abstract: Sintered, substantially round and spherical particles prepared from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of more than 55% by weight, and a mullite growth promoter in an amount of from about 2 to about 10% dry weight of the total solids in the slurry. The sintered particles are suitable for use as a propping agent or as a foundry media.Type: GrantFiled: September 21, 2009Date of Patent: July 10, 2012Assignee: Carbo Ceramics Inc.Inventors: Thomas C. Palamara, Brett Allen Wilson
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Patent number: 8178272Abstract: An external additive including titanium dioxide having a water-soluble component of at least 0.2% by weight and a fluorosilane compound, wherein the titanium dioxide is surface-reformed by the fluorosilane compound.Type: GrantFiled: September 11, 2008Date of Patent: May 15, 2012Assignee: Ricoh Company LimitedInventors: Masanori Rimoto, Masakazu Nakada, Hideyuki Ueda
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Patent number: 8173084Abstract: A high purity nano-sized Yb3+ doped Y2O3 (Yb:Y2O3) ceramic powder with a narrow size distribution and without hard agglomerates is provided. Also provided is a process for manufacturing the same wherein water in the reaction bath is replaced by a non-water washing agent having little or no hydrogen bonding capability to inhibit the formation of hard agglomerates in the ceramic powder.Type: GrantFiled: November 18, 2009Date of Patent: May 8, 2012Assignee: The United States of America as represented by the Secretary of the NavyInventors: Woohong Kim, Jasbinder S. Sanghera, Guillermo R Villalobos, Shyam S Bayya, Ishwar D. Aggarwal
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Patent number: 8142709Abstract: The invention provides a rapid and economical process for manufacturing a transparent, spinel based ceramic. A transparent body of sintered magnesium aluminate spinel having excellent optical and mechanical properties is provided in a single-stage thermal process.Type: GrantFiled: May 27, 2009Date of Patent: March 27, 2012Assignee: Ben-Gurion University of the Negev Research & Development AuthorityInventors: Nahum Frage, Moshe Dariel, Shai Meir, Sergei Kalabuchov
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Patent number: 8062621Abstract: A method of manufacturing titanium dioxide particles can produce titanium dioxide particles where a rare earth element is substituted at the titanium sites from which it is possible to highly efficiently take out fluorescence attributable to the rare earth element The method of manufacturing titanium dioxide particles doped with a rare earth element comprises a step of preparing a liquid precursor containing a titanium source and rare earth metal source, the doping ratio of the rare earth element in the liquid precursor being within a range not less than 0 at % and not more than 5.Type: GrantFiled: June 15, 2006Date of Patent: November 22, 2011Assignee: National Institute For Materials ScienceInventors: Jiguang Li, Takamasa Ishigaki
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Patent number: 8043595Abstract: Provided are a mesoporous carbon containing at least one heteroatom boron and phosphorus, a manufacturing method thereof, and a fuel cell using the same. The mesoporous carbon contains a heteroatom such as boron and phosphorous to reduce sheet resistance, and thus can efficiently transfer electric energy. Such a mesoporous carbon can be used as a conductive material of electrodes for fuel cells. When the mesoporous carbon is used as a support for catalysts of electrodes, a supported catalyst containing the support can be used to manufacture a fuel cell having high efficiency.Type: GrantFiled: May 31, 2006Date of Patent: October 25, 2011Assignee: Samsung SDI Co., Ltd.Inventors: Chan-ho Pak, Sang-hoon Joo, Hyuk Chang, Ji-man Kim, Hyung-Ik Lee
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Patent number: 8043598Abstract: Rare earth element(s) doped alumina nanowires are formed by a thermal evaporation method in which vapor from aluminum powder and vapor from a rare earth element compound (such as an halide) are reacted in an oxygen-containing inert gas stream to form alumina which deposits as alumina nanowires and as a rare earth element and oxygen-containing material that deposits with and/or on the alumina nanowires. Where the RE-doped alumina nanowires are to be used as catalyst supports, a catalyst material, such as platinum, may be deposited as small particles on the nanowires.Type: GrantFiled: November 26, 2008Date of Patent: October 25, 2011Assignees: GM Global Technology Operations LLC, The University of Western OntarioInventors: Mei Cai, Xueliang Sun, Yong Zhang, Ruying Li
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Patent number: 8038979Abstract: Disclosed is a method of manufacturing a metal oxide nano powder comprising preparing a first dispersed solution by adding a nano-sized metal powder to water and dispersing the metal powder within the water, performing a hydration reaction of the first dispersed solution at a temperature of about 30 to about 70° C. to generate a precipitation, and filtering and drying the precipitation to prepare a metal oxide powder. Also, disclosed is a metal oxide nano powder manufactured by the method described above, and having any one of a bar-form, a cube-form, and a fiber-form.Type: GrantFiled: November 6, 2007Date of Patent: October 18, 2011Assignee: Korea Atomic Energy Research InstituteInventors: Chang Kyu Rhee, Min Ku Lee, Young Rang Uhm, Jin Ju Park, Byung Sun Han, Hi Min Lee, Seung-Hee Woo
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Patent number: 7939042Abstract: The invention provides stabilized concentrated aqueous solutions of alkali hypobromites, as well as a process for the preparation of said stabilized concentrated solutions at low temperatures, comprising reacting a concentrated alkali hydroxide aqueous solution with bromine, adding to the non-stabilized reaction product an aqueous solution of a sulfamic compound to stabilize the hypobromite, and oxidizing bromide to produce additional hypobromite.Type: GrantFiled: March 2, 2009Date of Patent: May 10, 2011Assignee: Bromine Compounds Ltd.Inventors: Theodor Morel Fishler, David Feldman
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Patent number: 7931880Abstract: An aqueous precipitation process for the preparation of particles comprising primarily silver sulfate, comprising reacting an aqueous soluble silver salt and an aqueous soluble source of inorganic sulfate ion in an agitated precipitation reactor vessel and precipitating particles comprising primarily silver sulfate, wherein the reaction and precipitation are performed in the presence of an aqueous soluble inorganic additive compound containing a cation capable of forming a sulfate salt that is less soluble than silver sulfate or a halide anion or an oxyanion capable of forming a silver salt that is less soluble than silver sulfate, the amount of additive being a minor molar percentage, relative to the molar amount of silver sulfate precipitated, and effective to result in precipitation of particles comprising primarily silver sulfate having a mean grain-size of less than 70 micrometers.Type: GrantFiled: March 30, 2007Date of Patent: April 26, 2011Assignee: Eastman Kodak CompanyInventors: David W. Sandford, Thomas N. Blanton
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Patent number: 7795190Abstract: A process to prepare a stable solution of a borozirconate complex is disclosed and use of the solution in oil field applications such as hydraulic fracturing and plugging of permeable zones. The process comprises contacting zirconium complex with alkanolamine, then water and optionally and preferably a hydroxyalkylene diamine, then with a boron compound. The solution is particularly suitable for use in a cross-linking composition in hydraulic fracturing and plugging of permeable zones of subterranean formations at temperatures of 275° F. (135° C.) and higher in the formation.Type: GrantFiled: December 14, 2007Date of Patent: September 14, 2010Inventor: Donald Edward Putzig
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Patent number: 7790657Abstract: A process to prepare a stable solution of a borozirconate complex is disclosed and use of the solution in oil field applications such as hydraulic fracturing and plugging of permeable zones. The process comprises contacting zirconium complex with a first alkanolamine, then water and optionally hydroxyalkylene diamine, then with a solution of a boron compound and a second alkanolamine. The solution is particularly suitable for use in a cross-linking composition in hydraulic fracturing and plugging of permeable zones of subterranean formations at temperatures of 275° F. (135° C.) and higher in the formation.Type: GrantFiled: December 17, 2007Date of Patent: September 7, 2010Inventor: Donald Edward Putzig
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Patent number: 7780937Abstract: Granules based on silicon dioxide and having the properties: Average grain size: 10 to 120 ?m BET surface area: 40 to 400 m2/g Pore volume: 0.5 to 2.5 ml/g Pore size distribution: less than 5% of the total pore volume exists of pores with a diameter < 5 nm, rest meso- and macropores pH value: 3.6 to 8.5 Tapped density: 220 to 700 g/l They are prepared by dispersing silicon dioxide in water, spray drying, optionally heating and/or silanizing. Whereas a pyrogenic silicon dioxide powder with a BET surface area of 30 to 90 m2/g, a DBP index of 80 or less, a mean aggregate area of less than 25000 nm2 and a mean aggregate circumference of less than 1000 nm, wherein at least 70% of the aggregates have a circumference of less than 1300 nm or a high-purity pyrogenically prepared silicon dioxide having metal contents of less than 0.Type: GrantFiled: February 15, 2006Date of Patent: August 24, 2010Assignee: Evonik Degussa GmbHInventors: Jürgen Meyer, Monika Oswald, Klaus Deller
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Patent number: 7727501Abstract: Apparatus and method are disclosed for the production of compacted granular potassium chloride with improved handling qualities. A binding ingredient such as sodium hexametaphosphate is blended with the potassium chloride feed material in advance of compaction. The product of this apparatus and method has improved handling, storage, strength and other qualities over compacted granular potassium produced using prior art methods.Type: GrantFiled: May 3, 2004Date of Patent: June 1, 2010Assignee: The Mosaic CompanyInventors: Del Ferguson, Rob Plosz, Annette Revet, Doug LaRocque, Peter Jackson, Carey Heinbigner, Dave Zirk, Scott St. Germaine
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Patent number: 7691353Abstract: Low dielectric constant group II-VI compounds, such as zinc oxide, and fabrication methods are disclosed. Low dielectric constant insulator materials are fabricated by doping zinc oxide with at least one mole % p-type dopant ion. Low dielectric constant zinc oxide insulator materials are fabricated by doping zinc oxide with silicon having a concentration of at least 1017 atoms/cm3. Low dielectric zinc oxide insulator materials are fabricated by doping zinc oxide with a dopant ion having a concentration of at least about 1018 atoms/cm3, followed by heating to a temperature which converts the zinc oxide to an insulator. The temperature varies depending upon the choice of dopant. For arsenic, the temperature is at least about 450° C.; for antimony, the temperature is at least about 650° C. The dielectric constant of zinc oxide semiconductor is lowered by doping zinc oxide with a dopant ion at a concentration at least about 1018 to about 1019 atoms/cm3.Type: GrantFiled: June 17, 2005Date of Patent: April 6, 2010Inventors: Robert H. Burgener, II, Roger L. Felix, Gary M. Renlund
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Patent number: 7683011Abstract: A process to prepare a stable solution of a borozirconate complex is disclosed and use of the solution in oil field applications such as hydraulic fracturing and plugging of permeable zones. The process comprises contacting zirconium complex with a first alkanolamine, then glycerol and water, then with a solution of a boron compound and a second alkanolamine. The solution is particularly suitable for use in a cross-linking composition at temperatures of 275° F. (135° C.) and higher in the subterranean formation.Type: GrantFiled: December 12, 2007Date of Patent: March 23, 2010Inventor: Donald Edward Putzig
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Patent number: 7659033Abstract: A graphite powder suitable for a negative electrode material of a lithium ion secondary battery which assures a high discharging capacity not lower than 320 mAh/g is to be manufactured at a lower cost. Specifically, a graphite powder containing 0.01 to 5.0 wt % of boron and having a looped closure structure at an end of a graphite c-planar layer on the surface of a powder, with the density of the interstitial planar sections between neighboring closure structures being not less than 100/?m and not more than 1500/?m, and with d002 being preferably not larger than 3.3650 ?, is manufactured by (1) heat-treating a carbon material pulverized at an elevated speed before or after carbonization for graphization at temperature exceeding 1500° C. or by (2) heat-treating the carbon material pulverized before or after carbonization at a temperature exceeding 1500° C.Type: GrantFiled: March 14, 2007Date of Patent: February 9, 2010Assignee: Sony CorporationInventors: Koji Moriguchi, Mitsuhara Yonemura, Kazuhito Kamei, Masaru Abe, Hideya Kaminaka, Noriyuki Negi, Atsuo Omaru, Masayuki Nagamine
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Patent number: 7648032Abstract: Disclosed herein are a method of reductively bleaching a mineral slurry comprising adding in the mineral slurry an effective amount of a formamidine sulfinic acid (FAS) and an effective amount of a borohydride to reductively bleach the mineral slurry, compositions comprising a mineral slurry, a FAS, and a borohydride, and final products comprising a mineral obtained by the method disclosed herein.Type: GrantFiled: March 22, 2005Date of Patent: January 19, 2010Assignee: Imerys Pigments, Inc.Inventors: Jun Yuan, Robert J. Pruett, Larry C. Powell
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Patent number: 7601326Abstract: This invention pertains to mesoporous oxide of zirconium and processes of making a mesoporous oxide of zirconium.Type: GrantFiled: June 30, 2005Date of Patent: October 13, 2009Assignee: E. I. du Pont de Nemours and CompanyInventor: Carmine Torardi
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Patent number: 7601327Abstract: This invention pertains to a mesoporous oxide of hafnium and processes of making a mesoporous oxide of hafnium.Type: GrantFiled: June 30, 2005Date of Patent: October 13, 2009Assignee: E.I. du Pont de Nemours and CompanyInventor: Carmine Torardi
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Patent number: 7582276Abstract: The invention relates to nanoscale rutile or oxide powder that is obtained by producing amorphous TiO2 by mixing an alcoholic solution with a titanium alcoholate and with an aluminum alcohalate and adding water and acid. The amorphous, aluminum-containing TiO2 is isolated by removing the solvent, and is redispersed in water in the presence of a tin salt. Thermal or hydrothermal post-processing yields rutile or oxide that can be redispersed to primary particle size. The n-rutile or the obtained oxide having a primary particle size ranging between 5 and 20 nm can be incorporated into all organic matrices so that they remain transparent. Photocatalytic activity is suppressed by lattice doping with trivalent ions. If the amorphous precursor is redispersed in alcohol, or not isolated, but immediately crystallized, an anatase is obtained that can be redispersed to primary particle size.Type: GrantFiled: August 30, 2002Date of Patent: September 1, 2009Assignee: ITN Nanovation AGInventor: Ralph Nonninger
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Patent number: 7563431Abstract: A process for preparing nickel hydroxide by alkaline precipitation from nickel salt solutions in the presence of complexing agents, in which the precipitation is carried out at at least two different locations in the same mother liquor with different precipitation kinetics at the different locations and the mother liquor is mixed prior to agglomeration of the precipitated primary crystals, is described.Type: GrantFiled: June 24, 2002Date of Patent: July 21, 2009Assignee: H. C. Starck GmbHInventors: Armin Olbrich, Juliane Meese-Marktscheffel, Viktor Stoller, Michael Erb, Sven Albrecht, Gerhard Gille, Gerd Maikowske, Frank Schrumpf, Josef Schmoll, Matthias Jahn