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| Number | Title | Issue Date |
| 8142755 | Porous copper sulfide nano/micro hollow sphere and method for preparing the same The present invention relates to a porous copper sulfide nano/micro hollow sphere and a method for preparing the same. The porous copper sulfide nano/micro hollow sphere of the present invention has plural through holes and a hollow structure so as to increase the r... | 03/27/2012 |
| 8080229 | Water soluble nanocrystalline quantum dots An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via... | 12/20/2011 |
| 7976819 | Water soluble nanocrystalline quantum dots An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via... | 07/12/2011 |
| 7955588 | Metal sulfide catalysts and methods of making same Methods and apparatus relate to catalysts and preparation of the catalysts, which are defined by sulfides of a transition metal, such as one of molybdenum, tungsten, and vanadium. Precursors for the catalysts include a metal ion source compound, such as molybdenum t... | 06/07/2011 |
| 7850943 | Method of preparing cadmium sulfide nanocrystals emitting light at multiple wavelengths, and cadmium sulfide nanocrystals prepared by the method A semiconductor nanocrystal, wherein the semiconductor nanocrystal shows maximum luminescence peaks at two or more wavelengths and most of the atoms constituting the nanocrystal are present at the surface of the nanocrystal to form defects. ... | 12/14/2010 |
| 7824653 | Water soluble quantum dots An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via... | 11/02/2010 |
| 7820135 | Catalyst composition with nanometer crystallites for slurry hydrocracking A process and apparatus is disclosed for converting heavy hydrocarbon feed into lighter hydrocarbon products. The heavy hydrocarbon feed is slurried with a catalyst comprising iron oxide and alumina to form a heavy hydrocarbon slurry and hydrocracked to produce ligh... | 10/26/2010 |
| 7799311 | Processes for producing synthetic pyrite Process of making high purity, synthetic FeS2, and an electrochemical battery employing such synthetic FeS2 in the positive electrode. Synthetic FeS2 may be prepared by a sulfidation process comprising reacting ferric oxide, hydrogen... | 09/21/2010 |
| 7651674 | Method for manufacturing metal sulfide nanocrystals using thiol compound as sulfur precursor A metal sulfide nanocrystal manufactured by a method of reacting a metal precursor and an alkyl thiol in a solvent, wherein the alkyl thiol reacts with the metal precursor to form the metal sulfide nanocrystals, wherein the alkyl thiol is present on the surface of t... | 01/26/2010 |
| 7597870 | Water soluble quantum dots An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via... | 10/06/2009 |
| 7524481 | Reactors for producing inorganic fullerene-like tungsten disulfide hollow nanoparticles and nanotubes The present invention is related to an apparatus for the production of inorganic fullerene-like (IF) nanoparticles and nanotubes. The apparatus comprises a chemical reactor, and is further associated with a feeding set up and with a temperature control means for con... | 04/28/2009 |
| 7455825 | Method for manufacturing metal sulfide nanocrystals using thiol compound as sulfur precursor Disclosed herein is a method for manufacturing metal sulfide nanocrystals using a thiol compound as a sulfur precursor. The method comprises reacting the thiol compound and a metal precursor in a solvent to grow metal sulfide crystals to the nanometer-scale level. F... | 11/25/2008 |
| 7426959 | Systems and methods for producing oil and/or gas A system including a mechanism for recovering oil and/or gas from an underground formation, the oil and/or gas comprising one or more sulfur compounds; a mechanism for converting at least a portion of the sulfur compounds from the recovered oil and/or gas into a car... | 09/23/2008 |
| 7410625 | Process of making metal containing iron oxide and iron sulfide based nanoparticle materials A method and structure for making magnetite nanoparticle materials by mixing iron salt with alcohol, carboxylic acid and amine in an organic solvent and heating the mixture to 200-360° C. is described. The size of the particles can be controlled either by changing ... | 08/12/2008 |
| 7402547 | Systems and methods of producing a crude product Contact of a crude feed with one or more catalysts produces a total product that includes a crude product. The crude feed has a residue content of at least 0.2 grams of residue per gram of crude feed. Methods of preparing the one or more catalysts are described. The... | 07/22/2008 |
| 7393516 | Preparation of metal chalcogenides from reactions of metal compounds and chalcogen A method of preparing metal chalcogenides from elemental metal or metal compounds has the following steps: providing at least one elemental metal or metal compound; providing at least one element from periodic table groups 13-15; providing at least one chalcogen; an... | 07/01/2008 |
| 7364716 | Surface modified nanoparticle and method of preparing same The present disclosure relates to a nanoparticle containing at least one metal sulfide nanocrystal having a surface modified with a carboxylic acid, wherein the carboxylic acid has at least one aryl group. The present disclosure also describes a method of preparing ... | 04/29/2008 |
| 7335345 | Synthesis of water soluble nanocrystalline quantum dots and uses thereof An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via... | 02/26/2008 |
| 7332351 | Method of making nanoparticles Disclosed are silica-coated nanoparticles and a process for producing silica-coated nanoparticles. Silica-coated nanoparticles are prepared by precipitating nano-sized cores from reagents dissolved in the aqueous compartment of a water-in-oil microemulsion. A reacti... | 02/19/2008 |
| 7329399 | Hydrogen trapper compound, method for the production and uses thereof A hydrogen-trapping compound is provided, along with a process for manufacturing the compound, and its uses, wherein the hydrogen-trapping compound is characterized in that it contains at least one metal salt of formula MX(OH), in which M represents a divalent trans... | 02/12/2008 |
| 7311859 | Method to produce nanocrystalline powders of oxide-based phosphors for lighting applications Some embodiments of the present invention are directed toward nanocrystalline oxide-based phosphor materials, and methods for making same. Typically, such methods comprise a steric entrapment route for converting precursors into such phosphor material. In some embod... | 12/25/2007 |
| 7282167 | Method and apparatus for forming nano-particles Nano-scale particles of materials can be produced by vaporizing the material and allowing the material to flow in a non-violently turbulent manner into thermal communication with a cooling fluid, thereby forming small particles of the material that can be in the nan... | 10/16/2007 |
| 7267810 | Method of synthesizing colloidal nanocrystals A method of making nanocrystals involves adding a chalocogen source to a hot solution of a metal-containing non-organometallic compound, such as CdO, in a first ligand solvent, such as TOP, and preferably subsequently cooling the resulting mixture to a lower tempera... | 09/11/2007 |
| 7255846 | Methods for synthesis of semiconductor nanocrystals and thermoelectric compositions The present invention provides methods for synthesis of IV–VI nanostructures, and thermoelectric compositions formed of such structures. In one aspect, the method includes forming a solution of a Group IV reagent, a Group VI reagent and a surfactant. A reducing ag... | 08/14/2007 |
| 7247291 | Nano sized sulfide compounds of cerium and a process for the preparation thereof The present invention relates to nano sized sulfide compounds of cerium and a process for the preparation thereof. More particularly, the present invention provides novel nano sized particles of cerium sulfide as well as a novel process for the preparation of nano s... | 07/24/2007 |
| 7238331 | Process for producing nano-powders and powders of nano-particle loose aggregate The present invention discloses a process for producing nano-powders and powders of nano-particle loose aggregate, which includes: (a) providing at least two reactant solutions A and B capable of rapidly reacting to form deposits; (b) supplying the at least two reac... | 07/03/2007 |
| 7229602 | Method of preparing metal chalcogenide particles A method of preparing metal chalcogenide particles. The method comprising the step of reacting an amine and metal complex precursors. The metal complex precursors comprising a chalcogenide and an electrophilic group. The reaction forming metal chalcogenide particles... | 06/12/2007 |
| 7227066 | Polycrystalline optoelectronic devices based on templating technique Methods for passivating crystalline grains in an active layer for an optoelectronic device and optoelectronic devices having active layers with passivated crystalline grains are disclosed. Crystalline grains of an active layer material and/or window layer material a... | 06/05/2007 |
| 7211230 | Process for producing nanometer grade powders The present invention discloses a process for producing nanometer powders, comprising the following steps: (a) providing reactant solution A and reactant solution B that can rapidly react to form precipitate; (b) continuously adding said solution A and solution B in... | 05/01/2007 |
| 7208133 | Method for the preparation of IV-VI semiconductor nanoparticles A high temperature non-aqueous synthetic procedure for the preparation of substantially monodisperse IV-VI semiconductor nanoparticles is provided. The procedure includes introducing a first precursor selected from the group consisting of a molecular precursor of a ... | 04/24/2007 |
| 7186391 | Sintered compact of lanthanum sulfide or cerium sulfide and method for preparing the same The present invention provides a lanthanum sulfide or cerium sulfide sintered compact usable as a thermoelectric conversion material having a high Seebeck coefficient. The sintered compact has a chemical composition of La2S3 or Ce2S | 03/06/2007 |
| 7153541 | Method for inhibiting oxidation of metal sulfide-containing material The present invention provides means for inhibiting the oxidation of a metal sulfide-containing material, such as ore mine waste rock or metal sulfide taiulings, by coating the metal sulfide-containing material with an oxidation-inhibiting two-tail lipid coating ( | 12/26/2006 |
| 7138098 | Preparation of nanocrystallites A method of manufacturing a nanocrystallite from a M-containing salt forms a nanocrystallite. The nanocrystallite can be a member of a population of nanocrystallites having a narrow size distribution and can include one or more semiconductor materials. Semiconductin... | 11/21/2006 |
| 7132994 | Optical antenna array for harmonic generation, mixing and signal amplification An optical antenna collects, modifies and emits energy at light wavelengths. Linear conductors sized to correspond to the light wavelengths are used. Nonlinear junctions of small dimension are used to rectify an alternating waveform induced upon the conductors by th... | 11/07/2006 |
| 7132386 | Preparation of amorphous sulfide sieves The present invention involves methods and compositions for synthesizing catalysts/porous materials. In some embodiments, the resulting materials are amorphous sulfide sieves that can be mass-produced for a variety of uses. In some embodiments, methods of the invent... | 11/07/2006 |
| 7128891 | Process of making metal containing iron oxide and iron sulfide based nanoparticle materials A method and structure for making magnetite nanoparticle materials by mixing iron salt with alcohol, carboxylic acid and amine in an organic solvent and heating the mixture to 200–360 C is described. The size of the particles can be controlled either by changing t... | 10/31/2006 |
| 7125820 | Non-noble metal catalysts for the oxygen reduction reaction Non-noble metal transition metal catalysts can replace platinum in the oxidation reduction reaction (ORR) used in electrochemical fuel cells. A RuxSe catalyst is prepared with comparable catalytic activity to platinum. An environmentally friendly aqueous ... | 10/24/2006 |
| 7122163 | Rare-earth oxide or sulfide of nano size and process for producing the same through photochemical reaction A crystalline rare-earth oxide or sulfide which has an average particle diameter of 10 nm or less and in which the rare-earth element has a low valance, in particular, crystalline EuO or EuS of nano size. The rare-earth oxide or sulfide is produced by irradiating an... | 10/17/2006 |
| 7122168 | Shape anisotropic metal oxide nanoparticles and synthetic method thereof In a metal oxide nanoparticle and a synthetic method thereof, and in particular to maghemite (γ-Fe2O3) nanoparticles usable as a superhigh density magnetic recording substance by having good shape anisotropy and magnetic characteristics, hemat... | 10/17/2006 |
| 7101520 | High luminescence phosphor particles and methods for producing the particles Methods for producing metal/metalloid oxide particles comprise rare earth metals herein include reacting a reactant stream in a gas flow. The reactant stream includes a rare earth metal precursor and an oxygen source. A collection of particles comprising metal/metal... | 09/05/2006 |
