Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 8003020 | Process for the preparation of a sintered ceramic spark plug Process for the preparation of a ceramic wherein: 50% to 75% by weight of a compound intended to form a conductive phase, and 25% to 50% by weight of one or more materials allowing the formation of insulating phases composed of silicon nitride and modified silicon o... | 08/23/2011 |
| 7871545 | Hybrid composite including carbon nanotube and carbide-derived carbon, electron emitter including the hybrid composite, method of preparing the electron emitter, and electron emission device including the electron emitter Hybrid composites including carbon nanotubes and a carbide-derived carbon material, electron emitters including the hybrid composites, methods of preparing the electron emitters, and electron emission devices including the electron emitters are provided. Specificall... | 01/18/2011 |
| 7744780 | Yttrium oxide material, member for use in semiconductor manufacturing apparatus, and method for producing yttrium oxide material A substrate of an electrostatic chuck, which is a member for use in a semiconductor manufacturing apparatus, is formed of an yttrium oxide material that contains yttrium oxide (Y2O3), silicon carbide (SiC), and a compound that contains a rare-e... | 06/29/2010 |
| 7435702 | Photocatalyst and process for purifying gas effluent by photocatalytic oxidation The photocatalyst based on a composite WO3—SiC/TiO2 semiconductor and subjected to radiation whose wavelength is at least partly less than 400 nm gives1 photocatalytic oxidation of volatile organic compounds and leads to their total mineralis... | 10/14/2008 |
| 7364692 | Metal matrix composite material with high thermal conductivity and low coefficient of thermal expansion Metal-matrix composites with combinations of physical and mechanical properties desirable for specific applications can be obtained by varying and controlling selected parameters in the material formation processes, particularly by increasing the microstructural hom... | 04/29/2008 |
| 7342201 | Silcon carbide element A ceramic heating element arrangement in which a ceramic heating element made of SiC having electrical NTC (negative temperature coefficient) properties is provided for a circuit. At least one segment is provided in the circuit, whose resistance saturates at least q... | 03/11/2008 |
| 7258819 | Voltage variable substrate material The present invention provides an improved voltage variable material (“VVM”). More specifically, the present invention provides an improved printed circuit board substrate, an improved device having circuit protection an improved data communications cable having... | 08/21/2007 |
| 7255894 | Non-carbon anodes for aluminium electrowinning and other oxidation resistant components with slurry-applied coatings A method of manufacturing a component, in particular an aluminium electrowinning anode, for use at elevated temperature in an oxidising and/or corrosive environment comprises: applying onto a metal-based substrate layers of a particle mixture containing iron oxide p... | 08/14/2007 |
| 7255893 | Protection of non-carbon anodes and other oxidation resistant components with iron oxide-containing coatings A method of forming a dense and crack-free hematite-containing protective layer on a metal-based substrate for use in a high temperature oxidising and/or corrosive environment comprises applying onto the substrate a particle mixture consisting of: 60 to 99 95 weight... | 08/14/2007 |
| 7205256 | Oxide material, method for preparing oxide thin film and element using said material An oxide material characterized by that it has a perovskite structure comprising an oxide represented by ABO3, (Bi2O2)2+ (Am−1BmO3m+1)2− wherein A represents one kind or two ... | 04/17/2007 |
| 7195721 | Quantum lilypads and amplifiers and methods of use A nanocomposite having enhanced energy conversion between thermal, electron, phonons, and photons energy states. The composition comprises a synergistic blend of nanoscale powders wherein the powders have nanoscale layered surface modifiers and a conductive medium. ... | 03/27/2007 |
| 7195720 | Curable composition for heat conductive material The invention provides a curable composition for a heat conductive material, having an excellent durability, a satisfactory heat conductive property and a high productivity with easily controllable surface tackiness, a heat conductive material obtained from such cur... | 03/27/2007 |
| 7195722 | Compositions for ceramic igniters Ceramic igniter compositions are provided that contain components of conductive material and insulating material, where the insulating material component includes a relatively high concentration of metal oxide. Ceramic igniters of the invention are particularly effe... | 03/27/2007 |
| 7189342 | Tapecast electro-conductive cermets for high temperature resistive heating systems This invention relates to novel chemical compositions and manufacturing methods for producing electro-conductive, metal-ceramic materials having improved structural stability to operate at high temperatures in oxidizing atmospheres. ... | 03/13/2007 |
| 7186460 | Extension and upsetting sensor The invention relates to core-shell particles comprising a shell which forms a matrix, and a core which is essentially solid and has an essentially monodisperse size distribution, the refractive index of the core material being different from that of the shell mater... | 03/06/2007 |
| 7166523 | Silicon carbide and method of manufacturing the same In a method of manufacturing a silicon carbide substance, such as a film, a layer, a semiconductor, which is doped with an impurity, a carbonization process is executed after formation of a doped silicon substance which is obtained by carrying out a silicon depositi... | 01/23/2007 |
| 7151066 | Silicon nitride anti-wear member and process for producing the same A silicon nitride wear resistant member is composed of a ceramic sintered body containing 55 to 75 mass % of silicon nitride, 12 to 28 mass % of silicon carbide, 3 to 15 mass % of at least one element selected from the group consisting of Mo, W, Ta, and Nb in terms ... | 12/19/2006 |
| 7128850 | Electrically conductive Si-Ti-C-N ceramics Composite materials containing silicon, titanium, carbon, and nitrogen, formed by spark plasma sintering of ceramic starting materials to a high relative density, demonstrate unusually high electrical conductivity as well as high-performance mechanical and chemical ... | 10/31/2006 |
| 7112549 | Low thermal expansion ceramic and member for exposure system A low-thermal-expansion, rigid and wear-resistant ceramic is provided. The low-thermal-expansion ceramic of the invention includes 60 vol % to 99.9 vol % of at least one selected from the group consisting of cordierite, spodumene and eucryptite and 0.1 vol % to 40 v... | 09/26/2006 |
| 7078795 | High voltage module and method for producing same A high-voltage module comprises a housing (9) which accommodates at least one structural component (4, 5) that is fastened on a metal-ceramics substrate from a ceramic layer (1) comprising a first main face (11) and a second main face ( | 07/18/2006 |
| 7067775 | Treatment for improving the stability of silicon carbide heating elements A treatment and an object so treated, which may be used to improve the electrical stability, energy efficiency and performance of silicon carbide heating elements is disclosed. Use is made of colloidal binders and silicides to treat silicon carbide heating elements ... | 06/27/2006 |
| 7061363 | Passive, high-temperature-resistant resistor element for measuring temperature in passenger and commercial vehicles A passive, high-temperature-resistant resistor element for measuring temperature is provided, the resistor element having an essentially interior insulating layer and two exterior conducting layers of a ceramic composite structure; the conducting layers being connec... | 06/13/2006 |
| 7046117 | Integrated magnetic field strap for signal isolator An integrated signal isolator is provided to isolate first and second circuits. First, second, third, and fourth magnetoresistors of the isolator are coupled together so as to form a Wheatstone bridge. The first second, third, and fourth magnetoresistors are arrange... | 05/16/2006 |
| 7034260 | Method of making a heating element of molybdenum silicide type A method of producing a heating element made from molybdenum silicide and alloys thereof, and which includes aluminum oxide on its surface. A material is produced that contains substantially Mo(Si1-xAlx)2 and Al2O3 | 04/25/2006 |
| 7022175 | Initial solids mixture for a later organic coating application An initial solids mixture for a later organic coating, such as pigmented coatings, films, priming coats, etc., e.g., for a coil coating method in which an initial solids mixture is applied to a substrate, e.g., broad strip, and this is thereby pre-coated, wherein th... | 04/04/2006 |
| 7018947 | Low resistivity silicon carbide Free standing articles of chemical vapor deposited silicon carbide with electrical resistivities of less than 0.9 ohm-cm are provided without substantially degrading its thermal conductivity or other properties. ... | 03/28/2006 |
| 6905992 | Ceramic body reinforced with coarse silicon carbide whiskers and method for making the same A ceramic composite made by compacting a starting powder blend. The composite includes between about 50 volume percent and about 99 volume percent of a ceramic matrix; and between about 1 volume percent and about 50 volume percent as-processed silicon carbide whiske... | 06/14/2005 |
| 6875376 | Voltage non-linear resistor, method for manufacturing the same, and varistor using the same A voltage non-linear resistor which makes a SiC-based varistor exhibiting low apparent relative dielectric constant and the voltage nonlinearity coefficient α at the same level as ZnO-based varistors is provided. The voltage non-linear resistor includes semiconduct... | 04/05/2005 |
| 6849207 | Silicon nitride sintered material and production process thereof A silicon nitride sintered material containing a silicon nitride component and silicon carbide having an average particle size of 1 μm or less in an amount of at least 1 mass % and less than 4 mass %, based on 100 mass % of the silicon nitride component. The carbid... | 02/01/2005 |
| 6695984 | Silicon carbide sinter and process for producing the same The present invention provides: a fabrication method of a silicon carbide sintered body, including a step of fabricating a mixed powder slurry by dissolving or dispersing silicon carbide powder, at least one organic material composed of a nitrogen source,... | 02/24/2004 |
| 6649325 | Thermally conductive dielectric mounts for printed circuitry and semi-conductor devices and method of preparation Methods and formulations for use in preparing thermally conductive dielectric mounts for heat generating semi-conductor devices and associated circuitry. The formulations include a thermoplastic resin selected from the group consisting of polysulfone, pol... | 11/18/2003 |
| 6632761 | Silicon carbide powder, method of producing a green body, and method of producing a sintered silicon carbide A silicon carbide powder which can increase the densities of a green body and a sintered silicon carbide, a method of producing a green body having a high density and excellent handling properties, and a method of producing a sintered silicon carbide havi... | 10/14/2003 |
| 6632379 | Oxynitride phosphor activated by a rare earth element, and sialon type phosphor A sialon type phosphor in the form of a powder comprising at least 40 wt % of -sialon represented by the formula (Cax,My)(Si,Al)12 (O,N)16 (where M is at least one metal selected from the group consisting... | 10/14/2003 |
| 6589448 | Ceramic ball for bearing and ceramic ball bearing using the same A ceramic bearing ball in which at least a portion of a constituent ceramic is formed of an electrically conductive inorganic compound phase, whereby a proper electrical conductivity is imparted to the ceramic. Thus, electrifying of a bearing ball is prev... | 07/08/2003 |
| 6582629 | Compositions for ceramic igniters Ceramic igniter compositions are provided that contain components of conductive material and insulating material, where the insulating material component includes a relatively high concentration of metal oxide. Ceramic igniters of the invention are partic... | 06/24/2003 |
| 6515061 | Polyester dispersants for high thermal conductivity paste A paste composition having a high thermal conductivity and a relatively low viscosity is used to provide a thermal conductive connection between an electronic component and a cooling device to increase the heat transfer rate between the component and the ... | 02/04/2003 |
| 6497829 | Method of producing silicon carbide: heating and lighting elements A method of producing silicon carbide (SiC) heating and lighting elements, by mixing a quantity of finely-divided particles of carbon in a binder; shaping the mixture; applying finely-divided particles of elemental silicon over the shaped mixture; and hea... | 12/24/2002 |
| 6472972 | PTC composite material A PTC composite material including a matrix of ceramic material having one of a cristobalite crystal structure and a tridymite crystal structure, each doped with an oxide of at least one of Be, B, Mg, Al, Ca, Sc, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ga, Ge ... | 10/29/2002 |
| 6379806 | Heat-resistant silicone rubber composite sheet having thermal conductivity and method of producing the same A thermally conductive heat-resistant silicone rubber composite sheet which has a heat-resistant resin film layer on at least one side of a silicone rubber sheet and can be suitably used in a hot pressing process, with the silicone rubber sheet being a sh... | 04/30/2002 |
| 6328913 | Composite monolithic elements and methods for making such elements A composite monolithic element for use as a hot surface ignitor or the like includes first and second regions or layers. The first region or layer comprises a low pressure ejection molded mixture of silicon carbide and silicon nitride particles or other c... | 12/11/2001 |
