Patents Examined by Serena L Hanor
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Patent number: 7585488Abstract: An anatase-type titanium oxide powder having a ratio of rutile to anatase of 10% or less and a BET specific surface area of 20 to 80 m2/g. Since the titanium oxide powder has a large specific surface area and a low ratio of rutile to anatase in comparison with a conventional titanium oxide powder and excels in dispersibility, the titanium oxide powder is suitable for various applications.Type: GrantFiled: March 10, 2005Date of Patent: September 8, 2009Assignee: Toho Titanium Co., Ltd.Inventor: Hideki Sakai
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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: 7582588Abstract: A method of manufacturing a catalyst, a catalyst precursor, or a catalyst support comprising: (a) mixing a refractory metal oxide or precursor thereof with a liquid to form a paste; (b) adding said paste to an extruder, the extruder having a die plate comprising one or more dies, each die having a plurality of apertures, the outlet of each aperture having a cross sectional area of 6 mm2 or less; (c) extruding the paste through the apertures to form catalyst support extrudates; wherein the inlet of the apertures has a greater cross sectional area than the outlet of said apertures; and wherein for at least one die the combined cross sectional area of all apertures at the inlet relative to the total cross sectional area of the die at the inlet is higher than 50%.Type: GrantFiled: October 25, 2007Date of Patent: September 1, 2009Assignee: Shell Oil CompanyInventors: Peter John Van Den Brink, Ronald Jan Dogterom, Carolus Matthias Anna Maria Mesters
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Patent number: 7575735Abstract: The present invention includes pure single-crystalline metal oxide and metal fluoride nanostructures, and methods of making same. These nanostructures include nanorods and nanoarrays.Type: GrantFiled: November 2, 2006Date of Patent: August 18, 2009Assignee: The Research Foundation of State University of New YorkInventors: Stanislaus S. Wong, Yuanbing Mao
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Patent number: 7576035Abstract: A pillar-shaped honeycomb structure has a plurality of cells longitudinally placed in parallel with one another with a wall portion therebetween, wherein the honeycomb structure mainly includes inorganic fibers which form the honeycomb structure without lamination interfaces.Type: GrantFiled: April 7, 2008Date of Patent: August 18, 2009Assignee: Ibiden Co., Ltd.Inventors: Kazushige Ohno, Tomokazu Oya
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Patent number: 7572425Abstract: A starting material including silica and carbon is heated to form an intermediate material. The intermediate material includes silica and silicon carbide. The intermediate material is reacted to form silicon. At least some of the emissions that are generated by heating the starting material and reacting the intermediate material are collected and used to generate electric power.Type: GrantFiled: September 14, 2007Date of Patent: August 11, 2009Assignee: General Electric CompanyInventors: Thomas Francis McNulty, Bruce Gordon Norman, Mark Philip D'Evelyn, Roman Shuba
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Patent number: 7566433Abstract: Precipitated silicas which have a broad pore size distribution of the pores with a pore diameter smaller than that of the maximum of the derivative of the pore volume distribution function are useful, for example, for tires.Type: GrantFiled: September 8, 2006Date of Patent: July 28, 2009Assignee: Degussa AGInventors: Oleg Stenzel, Anke Blume, Hans-Detlef Luginsland, Ralf Schmoll, Herbert Thoma, Stefan Uhrlandt, Andre Wehmeier
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Patent number: 7566436Abstract: A mixing reactor for mixing efficiently streams of fluids of differing densities. In a preferred embodiment, one of the fluids is supercritical water, and the other is an aqueous salt solution. Thus, the reactor enables the production of metal oxide nanoparticles as a continuous process, without any risk of the reactor blocking due to the inefficient mixing inherent in existing reactor designs.Type: GrantFiled: February 11, 2005Date of Patent: July 28, 2009Assignee: The University of NottinghamInventors: Edward Henry Lester, Barry James Azzopardi
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Patent number: 7556793Abstract: A method of forming a shaped article includes forming a mixture which includes a titania hydrate pulp having a loss on ignition of from about 10 to 45 wt. %, a seed material comprising a titanium oxide, at least a portion of the titanium oxide being in a rutile form, and optionally a dispersion aid. The method includes forming the mixture into a shaped article and firing the shaped article. A shaped article suitable for use as a catalyst carrier is at least 90% titanium oxide, greater than 80% of the titanium oxide being in the rutile phase. The article has a surface area of at least 2.5 m2/g and a mercury pore volume of greater than 0.15 cc/g.Type: GrantFiled: June 6, 2005Date of Patent: July 7, 2009Assignee: Saint-Gobain Ceramics & Plastics, Inc.Inventor: Stephen L. Dahar
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Patent number: 7553462Abstract: A method for the production of Mg(OH)2 nanoparticles, by means of polyol-mediated synthesis, from an Mg precursor as well as a base. The particles produced with this method have a diameter between 10 nm to 300 nm, have a mono-disperse particle distribution, and are present in non-agglomerated form. They can be converted to MgO particles by means of calcination.Type: GrantFiled: June 18, 2007Date of Patent: June 30, 2009Assignee: K&S AktiengesellschaftInventors: Claus Feldmann, Sascha Ahlert, Jörg-Heino Sachse, Ingo Stahl
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Patent number: 7553474Abstract: It is an object to provide a method for producing stable alkaline metal oxide sols having a uniform particle size distribution. The method comprises the steps of: heating a metal compound at a temperature of 60° C. to 110° C. in an aqueous medium that contains a carbonate of quaternary ammonium; and carrying out hydrothermal processing at a temperature of 110° C. to 250° C. The carbonate of quaternary ammonium is (NR4)2CO3 or NR4HCO3 in which R represents a hydrocarbon group, or a mixture thereof. The metal compound is one, or two or more metal compounds selected from a group of compounds based on a metal having a valence that is bivalent, trivalent, or tetravalent.Type: GrantFiled: August 8, 2005Date of Patent: June 30, 2009Assignee: Nissan Chemical Industries, Ltd.Inventors: Yutaka Ohmori, Hirokazu Kato, Yoshinari Koyama, Kenji Yamaguchi
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Patent number: 7544345Abstract: A magnesium oxide single crystal having controlled crystallinity has a subboundary, and ranges of variation of diffraction line positions, as measured for reciprocal lattice maps with respect to a region surrounded by the same subboundary, with the range of the variation of 1×10?3 to 2×10?2 degree of on ?? coordinates, and with the range of the variation of 4×10?4 to 5×10?3 degree on 2? coordinates.Type: GrantFiled: December 28, 2005Date of Patent: June 9, 2009Assignee: Tateho Chemical Industries Co., Ltd.Inventors: Atsuo Toutsuka, Yoshifumi Kawaguchi, Masaaki Kunishige
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Patent number: 7541311Abstract: A vermiculite supported catalyst for carbon monoxide (CO) preferential oxidation (PROX) is disclosed. The CO PROX catalyst comprises at least one catalytic agent, one optional modifier agent, one carrier material, and a vermiculite support. The process for preparing the vermiculite supported catalyst in this invention includes depositing first the carrier material on a vermiculite support followed by calcination to form the carrier-containing support, and wet impregnating the catalytic agent and the optional modifier agent on the carrier-containing support followed by drying and calcination to form the CO preferential oxidation catalyst.Type: GrantFiled: August 31, 2007Date of Patent: June 2, 2009Assignee: Institute of Nuclear Energy ResearchInventors: Chao-Yuh Chen, Ching-Tsuen Huang, Chi-Hung Liao, Ching-Tu Chang
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Patent number: 7541016Abstract: A lithium titanate has the following formula: Li4Ti5O12?x wherein x is greater than 0. The lithium titanate is formed by providing a mixture of titanium dioxide and a lithium-based component. The mixture is sintered in a gaseous atmosphere comprising a reducing agent to form the lithium titanate having the above formula. A lithium-based cell includes an electrolyte, an anode, and a cathode, with at least one of the anode and the cathode comprising the lithium titanate having the above formula. The lithium titanate is deficient of oxygen, which increases electronic conductivity of the lithium titanate by at least three orders over electronic conductivity of a stoichiometric lithium titanate, while avoiding loss of reversible electric power-generating capacity that typically occurs when doping is used to replace titanium in the lithium titanate with atoms that provide higher electronic conductivity.Type: GrantFiled: August 4, 2006Date of Patent: June 2, 2009Assignee: EnerDel, Inc.Inventors: Vadim Gorshkov, Oleg Volkov
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Patent number: 7538068Abstract: A carbon dioxide gas absorbent includes a porous body containing a lithium complex oxide. The porous body includes pores having a pore diameter distribution such that main pores which consist of first pores with a diameter of 10 to 100 ?m and second pores with a diameter larger than 100 ?m and 500 ?m or smaller occupy 80 to 100%, third pores with a diameter smaller than 10 ?m occupy 0 to 10% and fourth pores with a diameter larger than 500 ?m occupy 0 to 10%, the main pores have a pore diameter distribution such that the first pores occupy 15 to 85% and second pores occupy 15 to 85%.Type: GrantFiled: March 16, 2006Date of Patent: May 26, 2009Assignee: Kabushiki Kaisha ToshibaInventors: Masahiro Kato, Toshihiro Imada, Kenji Essaki
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Patent number: 7534410Abstract: The invention relates to a method for making silica nanoparticles using a flame reactor, which includes a droplet spray having a two-fluid nozzle and a burner of a quintuple tube structure. In this method, droplets of silicon alkoxide as liquid Si compound are sprayed through the droplet spray of the flame reactor. A flame is generated by the flow of inert gas, oxygen, hydrogen and air simultaneously into the burner of the flame reactor. The liquid Si compound is delivered through the flame of the burner to produce silica nanoparticles having a mean particle size ranging from 9 nm to 68 nm. Resultant nanoparticles are collected and recovered in a particle collector. The droplets sprayed under high pressure from a silicon alkoxide solution are directly oxidized in the flame, thereby producing spherical silica nanoparticles.Type: GrantFiled: September 11, 2006Date of Patent: May 19, 2009Assignee: Korea Institute of Geoscience & Mineral Resources (KIGAM)Inventors: Han Kwon Chang, Hee Dong Jang
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Patent number: 7531690Abstract: A catalyst for the production of an oxygen-containing compound, comprising palladium, tungsten and zirconium, a production process thereof, and a production process of an oxygen-containing compound using the catalyst. The catalyst can provide an oxygen-containing compound from a lower olefin and oxygen with high productivity and high selectivity.Type: GrantFiled: March 28, 2005Date of Patent: May 12, 2009Assignee: Showa Denko K.K.Inventor: Toshio Okuhara
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Patent number: 7531155Abstract: The present invention is for a porous silicon powder comprising silicon particles wherein the outermost layers of said particles are porous. The present invention is also directed to a method of making this porous silicon powder using a stain etch method. The present invention is also directed to a method of making silicon nanoparticles from the porous silicon powders using a process of ultrasonic agitation. The present invention also includes methods of processing these silicon nanoparticles for use in a variety of applications.Type: GrantFiled: August 2, 2007Date of Patent: May 12, 2009Assignee: Applied Nanotech Holdings, Inc.Inventors: Yunjun Li, Igor Pavlovsky
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Patent number: 7527779Abstract: A vapor grown carbon fiber, each fiber filament of the carbonfiber having a branching degree of at least 0.15 occurrences/?m and a bulk density of 0.025 g/cm3 or less and a producing method of the carbon fiber by spraying a raw material solution containing a carbon source and a transition metallic compound into a reaction zone and subjecting the raw material solution to thermal decomposition, which is characterized in (1) spraying the raw material solution at a spray angle of 3° to 30° and (2) feeding a carrier gas through at least one site other than an inlet through which the raw material solution is sprayed, and a composite material comprising the carbon fiber.Type: GrantFiled: November 10, 2003Date of Patent: May 5, 2009Assignee: Showa Denko K.K.Inventors: Kotaro Yano, Masaharu Toki, Hitoshi Inoue, Tomoaki Yoshida, Eiji Kanbara
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Patent number: 7524475Abstract: A cerium oxide powder for one-component CMP slurry, which has a specific surface area of 5 m2/g or more, and a ratio of volume fraction of pores with a diameter of 3 nm or more to that of pores with a diameter less than 3 nm of 8:2˜2:8, is disclosed. A method for preparing the same, a one-component CMP slurry comprising the same as an abrasive material, and a method of shallow trench isolation using the one-component CMP slurry are also disclosed. The CMP slurry causes no precipitation of the cerium oxide powder even if it is provided as a one-component CMP slurry, because the CMP slurry uses, as an abrasive material, cerium oxide powder that is obtained via a low-temperature calcination step, optionally a pulverization step, and a high-temperature calcination step and has a high pore fraction and low strength.Type: GrantFiled: September 1, 2006Date of Patent: April 28, 2009Assignee: LG Chem, Ltd.Inventors: Seung Beom Cho, Jun Seok Nho, Dong Mok Shin, Jong Pil Kim, Myoung Hwan Oh, Jang Yul Kim, Eun Mi Choi, Min Jin Ko