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| Number | Title | Issue Date |
| 8147793 | Process for the manufacture of nano-sized powders Nano-sized metal-bearing powders and doped-powders are synthesized by means of a process whereby a non-volatile metal-bearing precursor powder or powder mixture is dispersed in a hot gas stream at relatively low temperatures. A first volatile reactant is added, conv... | 04/03/2012 |
| 7413725 | Copper and/or zinc alloy nanopowders made by laser vaporization and condensation A method of making Cu, Zn, and/or Cu/Zn alloy nanoparticles subjects one or more targets to laser energy to form a vapor and condenses the vapor to form nanoparticles having an average particle size of less than 20 nm. The optional application of an electric field r... | 08/19/2008 |
| 7381394 | Method for producing perovskite-type composite oxide Methods of producing a safe and hygienic method for industrially and efficiently producing a perovskite-type composite oxide are provided that can maintain the catalytic activity of a noble metal at a high level. Methods include preparing a precursor of the perovski... | 06/03/2008 |
| 7357910 | Method for producing metal oxide nanoparticles Method for producing metal oxide nanoparticles. The method includes generating an aerosol of solid metallic microparticles, generating plasma with a plasma hot zone at a temperature sufficiently high to vaporize the microparticles into metal vapor, and directing the... | 04/15/2008 |
| 7314607 | Meso-porous transition metal oxide having crystallized pore wall and method for preparing the same A meso porous transition metal oxide comprising one or more transition metal oxides, wherein the metal is selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge, Zr, Nb, Mo, Ru, Cd, In, Sn, Sb, Hf, Ta, W and Re, and the pore wall of the meso... | 01/01/2008 |
| 7271114 | Perovskite ceramic powder and electronic component using same and manufacturing methods thereof A ceramic powder having a perovskite structure is manufactured by synthesizing a ceramic powder by a dry synthesis process and then heat-treating the synthesized ceramic powder in a solution. The dry synthesis method includes a solid phase synthesis method, an oxala... | 09/18/2007 |
| 7232557 | Method for preparation of magnetic spinel ferrites from layered double hydroxide precursors The invention describes a method of preparing magnetic ferrites from layered precursors in which Fe2+ is first introduced into the layers of layered double hydroxides (LDHs) in order to prepare Me-Fe2+—Fe3+ LDHs, and then by utiliz... | 06/19/2007 |
| 7232556 | Titanium comprising nanoparticles and related nanotechnology Nanoparticles comprising titanium, such as nanoscale doped titanium metal compounds, inorganic titanium compounds, and organic titanium compounds, their methods of manufacture, and methods of preparation of products from nanoparticles comprising titanium are provide... | 06/19/2007 |
| 7223377 | Process for producing micro-mesoporous metal oxide having regulated pores formed by novel template removal method The present invention is the method for preparation of transition metal oxide having micro-mesoporous structure whose average fine pores size is not less than 1 nm and not more than 2 nm comprising, adding and dissolving transition metal salt which is a precursor of... | 05/29/2007 |
| 7211238 | Mesoporous aluminum oxide, preparation and use thereof Mesoporous aluminum oxides with high surface areas have been synthesized using inexpensive, small organic templating agents instead of surfactants. Optionally, some of the aluminum can be framework-substituted by one or more other elements. The material has high the... | 05/01/2007 |
| 7211235 | Method for producing hydrotalcites A method is described for the manufacture of hydrotalcites by using at least one compound of a bivalent metal (Component A) and at least one compound of a trivalent metal (Component B), wherein at least one of these components is not used in the form of a solution, ... | 05/01/2007 |
| 7208135 | Preparation of mixed oxides having mean diameters of less than 10 nanometers Process for preparing mixed oxides by reacting alkoxides of the elements titanium, zirconium, niobium, tantalum or mixtures thereof with metal hydroxides, metal carboxylates, metal hydroxycarbonates, metal carbonates or mixtures thereof of the elements lithium, sodi... | 04/24/2007 |
| 7186393 | Complex oxide, and production process therefor and applications thereof The present invention relates to a complex oxide having a BET specific surface area of about 10 to about 200 m2/g, comprising zinc oxide as a primary component, containing crystalline structures of both zinc oxide and silica, and exhibiting diffraction pe... | 03/06/2007 |
| 7182929 | Nanostructured multi-component and doped oxide powders and method of making same A method for producing nanostructured multi-component or doped oxide particles and the particles produced therein. The process includes the steps of (i) dissolving salts of cations, which are either dopants or components of the final oxide, in an organic solvent; (i... | 02/27/2007 |
| 7147834 | Hydrothermal synthesis of perovskite nanotubes A low-temperature hydrothermal reaction is provided to generate crystalline perovskite nanotubes such as barium titanate (BaTiO3) and strontium titanate (SrTiO3) that have an outer diameter from about 1 nm to about 500 nm and a length from abou... | 12/12/2006 |
| 7138102 | Method for manufacturing highly-crystallized double oxide powder A method for manufacturing a highly-crystallized double oxide powder composed of a single crystal phase which can be used as a phosphor material, a dielectric material, a magnetic material, etc. The method involves forming fine droplets of a raw material solution co... | 11/21/2006 |
| 7135161 | Method of producing nanosized oxide powders A method of forming metal oxide powders includes the steps of solid state mixing of at least one metal nitrate salt, such as Fe(NO3)3 or a combination of metal nitrate salts such as Zn(NO3)3,6H2O and Ga(NO3... | 11/14/2006 |
| 7132093 | Mesoporous mixed oxide materials as a new class of SOresistant catalysts for hydrocarbon oxidation The oxide materials are of the class of ternary mesoporous mixed oxide materials including lanthanum, a metal M selected from the group consisting of Cr, Mn, Fe, Co, Ni, Cu and Zn, and zirconium or cerium such a mesoporous La—Co—Zr mixed oxide material designate... | 11/07/2006 |
| 7118728 | Method and apparatus for making ferrite material products and products produced thereby A method for making ferrite powder may include providing ferrite feed materials in a form of particles having different sizes and irregular shapes, and exposing the ferrite feed materials to a plasma to provide a more spherical shape to irregularly shaped particles ... | 10/10/2006 |
| 6800135 | ZnO/sapphire substrate and method for manufacturing the same A ZnO/sapphire substrate includes an R-plane sapphire substrate whose (0 1-1 2) planes are parallel to the surface thereof and a ZnO epitaxial film formed on the R-plane sapphire substrate. The (1 1-2 0) planes of the ZnO epitaxial film are disposed with an interpla... | 10/05/2004 |
| 6663843 | Method of producing barium-containing composite metal oxide A method for producing a barium-containing composite metal oxide, comprising calcining a mixture of a barium compound and a metal compound comprising at least one metal selected from the group consisting of magnesium, aluminum, europium, manganese, stront... | 12/16/2003 |
| 6497830 | Ultraviolet light absorber and its use An ultraviolet light absorber containing, as an active ingredient, a zinc oxide type solid solution which is represented by the formula (1), (Zn)1-x M3+x-δ O (1) wherein M3+ is a trivalent metal such as Al, Fe, Ce or T... | 12/24/2002 |
| 6387033 | Preparation of new layered double hydroxides exchanged with osmate for asymmetric dihydroxylation of olefins to vicinal diols LDH-osmate of the formula [MII.sub.(1-x) MIIIx (OH)2 ][OsO42- ]x/2.zH2 O wherein MII is a divalent cation selected from the group consisting of Mg2+, ... | 05/14/2002 |
| 6379641 | Microporous rare earth silicates and method of producing same Crystalline microporous rare earth silicates are provided. These microporous compositions have a three dimensional framework structure of at least silicon tetrahedral oxide units and at least one M oxide unit. M is a rare earth element. Optionally, the mi... | 04/30/2002 |
| 6328944 | Doped, pyrogenically prepared oxides Doped, pyrogenically prepared oxides of metals and/or non-metals which are doped with one or more doping components in an amount of 0.00001 to 20 wt. %. The doping component may be a metal and/or non-metal or an oxide and/or a salt of a metal and/or a non... | 12/11/2001 |
| 6319421 | Ceramic oxide powder, method for producing the ceramic oxide powder, ceramic paste produced using the ceramic oxide powder, and method for producing the ceramic paste A method for producing ceramic oxide powder having a grain size of 5 μm or less and exhibiting a uniform grain size distribution is disclosed. The method includes the steps of sufficiently dissolving or uniformly dispersing a raw material of constituent ... | 11/20/2001 |
| 6193908 | Electroluminescent phosphor powders, methods for making phosphor powders and devices incorporating same Electroluminescent phosphor powders and a method for making phosphor powders. The phosphor powders have a small particle size, narrow particle size distribution and are substantially spherical. The method of the invention advantageously permits the econom... | 02/27/2001 |
| 5997718 | Recycling of CdTe photovoltaic waste A method for extracting and reclaiming metals from scrap CdTe photovoltaic cells and manufacturing waste by leaching the waste with a leaching solution comprising nitric acid and water, skimming any plastic material from the top of the leaching solution, ... | 12/07/1999 |
| 5861133 | Synthetic chalcoalumite compounds and process for producing thereof A synthetic chalcoalumite compound represented by the formula (1) (Zna-x2+ Mx2+)Al43+ (OH)b (An-)c.mH.sub.2 O (1) wherein M2+... | 01/19/1999 |
| 5672329 | Manganese oxides production thereof, and use thereof A manganeses oxide is provided which is represented by the general formula Ax Mn2 O4.nH.sub.2 O, where A is Zn, Mg, Ca, or Co; and if A is Zn, 0 | 09/30/1997 |
| 5672447 | Non-sintered nickel electrode with excellent over-discharge characteristics, an alkaline storage cell having the non-sintered nickel electrode, and a manufacturing method of the non-sintered nickel electrode A alkali storage cell includes a non-sintered type nickel electrode which includes a highly efficient nickel hydroxide active material and which causes no capacity decrease during an over-discharge operation. The nickel electrode contains an active materi... | 09/30/1997 |
| 5662879 | Method for preparation of ferrite powders at room temperature A method for precipitating ferrite at room temperature which involves dissolving metal salts in deaerated water, using a base solution to precipitate metal hydroxides, adding an oxidizing agent that has a standard reduction potential greater than 1.229 V ... | 09/02/1997 |
| 5543070 | Magnetic recording powder having low curie temperature and high saturation magnetization This invention relates to a magnetic recording powder having a low Curie temperature and a high saturation magnetization (ςs). The magnetic recording powder of this invention is of a composite oxide having a hexagonal ferrite type crystal structure compr... | 08/06/1996 |
| 5498360 | Process for recycling used-up dry cells, and ferrite production process Manganese dry cells sorted out of used-up dry cells are crushed and sieved to obtain a mixture composed predominantly of anodic substances, which is in turn used for ferrite production. The invention is preferable for a saving of resources and preservatio... | 03/12/1996 |
| 5492885 | Mercury-thallium-barium-calcium-strontium-copper-oxide 1223 superconductor and method of making same Mercury-thallium based superconductors with the formula Hg1-x Tlx Ba2 (Ca1-y Sry)2 Cu3 O8+δ ; change "their preparing method, in particular characterized in that it" to an... | 02/20/1996 |
| 5466740 | Stabilized, halogen-containing resin composition, and composite metal oxide and process for the production thereof A halogen-containing resin composition made stable to heat and light, by incorporating (a) a calcium-based composite metal hydroxide of the formula (1), Ca1-x M2+x (OH)2 (1) wherein M2+ i... | 11/14/1995 |
| 5427711 | Synthesized inorganic ion exchange material and detergent composition containing the same The synthesized crystalline ion exchange material or a hydrate thereof has a chain structure and a composition represented by the following general formula (A) in an anhydride form: xM2 O.ySiO2.zM'O, (A) whe... | 06/27/1995 |
| 5426310 | Method of heat-treating an oxide optical crystal and a heat treatment apparatus for carrying out the same A heat treatment method heats an oxide optical crystal in an oxygen atmosphere containing ozone to improve the light absorption characteristics of the oxide optical crystal so that the light absorption of the oxide optical crystal with light in wavelength... | 06/20/1995 |
| 5413974 | Aluminum-containing oxide and process for producing aluminum-containing oxide A substantially amorphous, aluminum-containing oxide having the composition Al1-x-y1-y2 Bix M1y1 Oz (wherein x is defined by 0.0001ࣘxࣘ0.10, M1 is at least one selected from Si, P, B, Sb, Se, Te, S... | 05/09/1995 |
| 5401442 | Composite metal hydroxide and its use A composite metal hydroxide which is a solid solution of the formula (1), Mg1-x M2+x (OH)2 ( 1) wherein M2+ is at least one divalent metal ion selected from the group consisting of Mn... | 03/28/1995 |
