William F. Semple, a dentist, was awarded the first US Patent on chewing gum in 1869. His recipe contained powdered chalk.
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| Number | Title | Issue Date |
| 8097203 | Crosslinked green body articles and method of manufacturing porous ceramic articles therefrom The invention describes a high porosity ceramic article and method of manufacturing the same and intermediate dried honeycomb green body articles. The article may have a total porosity of at least about fifty-five percent, above sixty percent, or even above sixty-fi... | 01/17/2012 |
| 8038929 | Method of making a molded body using a chopper blade and a planetary blade A method of manufacturing a sintered body is provided. A molding powder, a gel-forming material powder and a solvent are mixed at a temperature not higher than a dissolving point of the gel-forming material. A treatment of pulverizing agglomerates containing the mol... | 10/18/2011 |
| 7919040 | Method of preparing pressureless sintered, highly dense boron carbide materials In a method of preparing a boron carbide material, boron carbide powder is washed with essentially pure water at an elevated temperature to generate washed boron carbide powder. The washed boron carbide powder is combined with a sintering aid. The mixture of the bor... | 04/05/2011 |
| 7435376 | Composites and method for manufacturing same A composite of a metal matrix with one or more incorporated secondary phases is referred to as a metal matrix composite (MMC). Secondary phase refers to all the particles or fibers which have a different composition than the metal matrix, and which are incorporated ... | 10/14/2008 |
| 7354542 | Lightweight, heat insulating, high mechanical strength shaped product and method of producing the same This invention relates to a process of a lightweight, heat insulating, high compressive strength, water insoluble material by heat treatment at temperatures between 650-950° C., possessing a low bulk density (from 300 to 800 kg/m3) and improved heat insu... | 04/08/2008 |
| 7347966 | Method for manufacturing ceramic heater A method for manufacturing a ceramic heater includes mixing a conductive ceramic powder, an insulating ceramic powder, a sintering aid powder, and a solvent so as to obtain a slurry, drying the slurry so as to obtain a heating-element material powder, forming a gree... | 03/25/2008 |
| 7332695 | Carbon heating element and method of producing same A carbon heating element having an arbitrary specific resistance and an arbitrary shape which are arbitrary necessary as a heating element, and a method of producing the same. The carbon heating element is obtained by uniformly dispersing one or at least two metal o... | 02/19/2008 |
| 7297309 | Process for producing silicatic moldings The invention relates to a process for producing a molding, characterized in that a silicatic solid is mixed with a solution comprising a first silicatic binder and the mixture is then press-molded, and the compression molding is then post-treated with a solution co... | 11/20/2007 |
| 7287573 | Silicone binders for investment casting A green product for use in fabricating a ceramic article comprises a ceramic powder immobilized within a silicone matrix, wherein the silicone matrix comprises one or more cross linked or polymerized silicone monomers and/or oligomers, wherein the one or more cross ... | 10/30/2007 |
| 7282630 | Soundboard for a musical instrument comprising nanostructured aluminum materials and aluminum materials with nanostructured composites The present invention describes the use of nanophase materials, chiefly aluminum, in musical instrument construction. Nanophase materials have constituent grains that are substantially smaller than those of conventional materials, imparting greater strength and defo... | 10/16/2007 |
| 7279126 | Method of producing shared articles A novel process for manufacturing of injection molded metal, ceramic, and CERMET parts, in a manner amenable to high-volume, low-cost manufacturing, comprising the steps of forming a mechanical mixture of metal and/or ceramic powders at room temperature, a binder an... | 10/09/2007 |
| 7238319 | Method for fabricating ceramic articles containing organic compounds A method for fabricating a green ceramic article containing organic compounds. The method involves first heating the green ceramic article to sequentially remove the organic compounds such that the organic compound with the lowest weight loss onset temperature is su... | 07/03/2007 |
| 7195735 | Porous sintered metal and filter thereof, and method for producing porous sintered metal A porous sintered metal comprising voids at least partially communicating with each other, and pores provided in walls of the voids, the porous sintered metal having a BET surface area of 700 cm2/cm3 or more, and an average diameter of the pore... | 03/27/2007 |
| 7169198 | Microcrystalline α-AlOshaped body, method for the production and use thereof The invention relates to a method for the production of a sintered, microcrystalline α-Al2O3-based shaped body, which are used, for example, as abrasive bodies, wherein an α-Al2O3 powder is used as starting material, sai... | 01/30/2007 |
| 7141204 | Method of forming ceramic articles An improvement in a method of forming ceramic articles comprising an oil component or extrusion aid, the improvement including removing a substantial portion of the oil component, prior to firing, by applying a solvent to the green ceramic article to dissolve the oi... | 11/28/2006 |
| 7135288 | Combinatorial synthesis of ceramic materials A combinatorial library includes a gelcast substrate defining a plurality of cavities in at least one surface thereof; and a plurality of gelcast test materials in the cavities, at least two of the test materials differing from the substrate in at least one composit... | 11/14/2006 |
| 7083757 | Method of making semiconductor bonding tools Semiconductor wire bonding tools used in the assembly and interconnection of integrated circuits (ICs) are micromolded from a mixture of ultrafine particulate materials mixed with an organic binder. Following extraction of the binder the green bonding tools are sint... | 08/01/2006 |
| 6910612 | Capillary with contained inner chamfer A bonding tool for bonding a fine wire to bonding pads having a very fine pitch is disclosed. The bonding tool comprises a working tip at an end thereof. The working tip includes an annular chamfer formed at an inner portion of the end of the working tip, the inner ... | 06/28/2005 |
| 6869563 | Method for preparation of bulk shaped foam articles A process for the preparation of bulk foams which comprises contacting ceramic foam particles with a hydrophobic material to form impregnated and/or coated ceramic foam particles with hydrophobic properties. The impregnated and/or coated ceramic foam particulate mat... | 03/22/2005 |
| 6858174 | Process for casting ceramic materials A process for producing ceramic, or ceramic composite, components having microfeatures by creating a chemical reaction in a castable slurry to bond nano-sized or submicron-sized ceramic powders. The bonding process that gives coherency and strength to the material c... | 02/22/2005 |
| 6843955 | Injection molding of ceramic powders using non-gel forming water soluble organic binders A method for compounding gel-free injection molding feed stock for injection molding net-shape ceramic parts, including the steps of: mixing inorganic particles with non-gel forming water soluble organic binders having molecular weight between 1000 and 1,000,000 and... | 01/18/2005 |
| 6843956 | Method for producing a ceramic silver niobium tantalate body A method of producing a ceramic object includes producing particles of a type A and a type B. Each particle has a dimension of at least 5 μm and each type of particle includes a ceramic material that is based on a mixture of silver oxide, niobium oxide and tantalum... | 01/18/2005 |
| 6787074 | Method for removing volatile components from a gel-cast ceramic article A method of removing substantially all of the volatile component in a green, volatile-containing ceramic article is disclosed. The method comprises freezing the ceramic article; and then subjecting the frozen article to a vacuum for a sufficient time to freeze-dry t... | 09/07/2004 |
| 6777114 | Silicon carbide-based porous body and process for production thereof It is directed to a silicon carbide-based porous body, wherein said body is a porous one which contains silicon carbide particles as an aggregate and metallic silicon, and has an oxygen-containing phase at the surfaces of silicon carbide particles and/or metallic si... | 08/17/2004 |
| 6764742 | Honeycomb structure body and production method thereof A honeycomb structure body which has a number of passages partitioned with partition walls and penetrating along the axial direction. A porous honeycomb structure body which contains refractory grains as filler, one or more elements selected from the group consistin... | 07/20/2004 |
| 6764619 | Solid freeform fabrication of lightweight lithography stage A method of making an EUV lithography stage structure includes depositing a layer of a Ti doped SiO2 glass powder in a confined region to provide an underlying layer; applying a binder to form a primitive with the binder bonding the glass powder together ... | 07/20/2004 |
| 6740287 | Method for making articles from nanoparticulate materials A method of fabricating nanostructure bodies by integrating the steps of attriting precursor nanometer-sized particulate materials, desorbing the exposed surfaces of the attrited nanoparticulates, adsorbing a surfactant on at most 50% of the desorbed surfaces and di... | 05/25/2004 |
| 6733703 | Method for controlling the dimensions of bodies made from sinterable materials Precise control of the shrinkage upon sintering of bodies made from mixtures of particulate materials and organic binders is achieved through precision pycnometry of the particulate materials and of the resulting sintered bodies, thus allowing a single molding tool ... | 05/11/2004 |
| 6709627 | Method of making a product A method of making a product which is generally impervious to water including the steps of making a generally homogenous mixture of slate particles and clay, wetting the mixture as necessary to produce a formable composition, forming the wet mixture to a desired con... | 03/23/2004 |
| 6699430 | Method and device for producing a sintered metal blank with internally disposed helical recesses A method of producing a substantially regular cylindrical body that consists of a deformable material, especially a sintered metal blank. The blank is provided with an interior helical recess. The blank is first produced with a substantially linear course... | 03/02/2004 |
| 6696130 | Ceramic honeycomb structure and process for production thereof A ceramic honeycomb structure has an open frontal area of 50% to 85%, a porosity of 0.1% to 10%, and a proportion of the volume of pores of 1 μm or larger in diameter, in total pore volume, of 20% or more; a regenerative thermal oxidizer using the cerami... | 02/24/2004 |
| 6680101 | Molded honeycomb material and process for production thereof A molded honeycomb material is obtained by subjecting a mixture of a raw material powder and a binder to extrusion molding. In the honeycomb material, no open pores are present, and the binder includes a thermoplastic material which is molten at the moldi... | 01/20/2004 |
| 6667261 | Open-cell glass crystalline porous material An open-cell glass crystalline porous material made from hollow microspheres which are cenospheres obtained from fly ash, having an open-cell porosity of up to 90 vol. % is produced. The cenospheres are separated into fractions based on one or more of gra... | 12/23/2003 |
| 6663826 | Method of high-density foil fabrication A method for preparing flat foils having a high density includes the steps of mixing a powdered material with a binder to form a green sheet. The green sheet is exposed to a high intensity radiative source adapted to emit radiation of wavelengths correspo... | 12/16/2003 |
| 6663828 | Sintering method and apparatus using centrifugal force A method and an apparatus for sintering a compact of particulate material for a ceramic or of particles of a metal, or a ceramic precursor film, wherein the sintering is performed by heating and burning the compact or the ceramic precursor film while appl... | 12/16/2003 |
| 6652801 | Method for producing agglomerated boron carbide A method for producing agglomerated boron carbide, including the steps of providing a boron carbide powder precursor having particle sizes smaller than about 1 micron in diameter, mixing the boron carbide powder precursor with binder solution to form a sl... | 11/25/2003 |
| 6632381 | Production process for alumina based insulator In insulator including alumina as a main component, a Na component in the insulator is set in the range of 0.07 to 0.5 wt % as Na2 O. While the Na component content is as high as to have conventionally been regarded to be beyond the common sens... | 10/14/2003 |
| 6627144 | Carbonaceous heating element and process for producing the same The present invention provides a carbon heating element having an arbitrary specific resistance and an arbitrary shape which are arbitrary necessary as a heating element, and a method of producing the same. The carbon heating element is obtained by unifor... | 09/30/2003 |
| 6599463 | Monolithic ceramic electronic component and production process therefor, and ceramic paste and production process therefor A process for producing a monolithic ceramic electronic component, which includes: providing a ceramic slurry, a conductive paste, and a ceramic paste; forming a plurality of composite structures each comprising a ceramic green sheet produced by shaping t... | 07/29/2003 |
| 6596224 | Jetting layers of powder and the formation of fine powder beds thereby A powder bed (32) is built up by repeated deposition of a slurry that contains powder. Layers are made by depositing a liquid dispersion of the desired powdered material, which then slip-casts into the forming powder bed to make a new layer (34). The slur... | 07/22/2003 |