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 |
| 7413721 | Method for forming ammonia A method for forming ammonia is disclosed and which includes the steps of forming a plasma; providing a source of metal particles, and supplying the metal particles to the plasma to form metal nitride particles; and providing a substance, and reacting the metal nitr... | 08/19/2008 |
| 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 |
| 7150862 | Method of manufacturing powder A method of manufacturing a powder, by which it is possible to adjust the strength of the obtained powder is provided. The manufacturing method of a powder involves a step of preparing a slurry containing agglomerated particles of a synthetic material which is produ... | 12/19/2006 |
| 7091124 | Methods for forming vias in microelectronic devices, and methods for packaging microelectronic devices Microelectronic devices, methods for packaging microelectronic devices, and methods for forming vias and conductive interconnects in microfeature workpieces and dies are disclosed herein. In one embodiment, a method includes forming a bond-pad on a die having an int... | 08/15/2006 |
| 7073703 | Aluminum/ceramic bonding substrate and method for producing same An aluminum plate 12 having a purity of 99.5% or more, preferably 99.9% or more, is caused to contact at least one side of a ceramic substrate 10 of aluminum nitride or alumina to be heated at a temperature of 620 to 650° C. in an inert gas to bond th... | 07/11/2006 |
| 7041150 | Preparation of alloys by the Armstrong method A method and apparatus for making alloys or ceramics by the subsurface injection of an equilibrium vapor of a boiling liquid of the ceramic or alloys constituents is disclosed. Various powders and products are disclosed. ... | 05/09/2006 |
| 7033560 | Single source mixtures of metal siloxides This invention pertains to complex mixtures of the formula M is a metal having a valence of from 2–6, L1 is an anionic ligand and L2 is a siloxide or silyl amide ligand suited for producing stable thin-film metal silicates, v is equal to the valence of the metal, ... | 04/25/2006 |
| 6919543 | Resistive heaters and uses thereof A metallic resistive heater and a method of production are described. The resistive heater has a metallic component that is electrically conductive (i.e. has low resistivity) and an oxide, nitride, carbide, and or boride derivative of the metallic component that is ... | 07/19/2005 |
| 6861038 | Ceramics and method of producing ceramics A method of continuously producing a non-oxide ceramic formed of a metal constituent and a non-metal constituent. A salt of the metal constituent and a compound of the non-metal constituent and a compound of the non-metal constituent are introduced into a liquid alk... | 03/01/2005 |
| 6573209 | Zirconium nitride and yttrium nitride solid solution composition The present invention relates to oxides on suitable substrates, as converted from nitride precursors. A composition comprising a solid solution of zirconium nitride and yttrium nitride (YZN) represented by the formula (Zrx Y1-x)N whe... | 06/03/2003 |
| 6254928 | Laser pyrolysis particle forming method and particle forming method The invention comprises particle forming methods, laser pyrolysis particle forming methods, chemical mechanical polishing slurries, and chemical mechanical polishing processes. In but one preferred implementation, a particle forming method includes feedin... | 07/03/2001 |
| 6120748 | Process for rapid solid-state formation of refractory nitrides A process for forming high quality crystalline refractory materials, particularly gallium (Ill) nitride (GaN), from solid precursors. By blending dry reactants in an oxygen and moisture free environment, placing the reactants in a sealed vessel, pressuriz... | 09/19/2000 |
| 5948379 | Plasma-chemical deposition of very fine particles An apparatus for producing solid fine particulates has a substantially closed reaction vessel and a hollow gas input conduit inside the vessel formed with a multiplicity of similar outlet apertures each having a flow cross section of at most 2 mm2. | 09/07/1999 |
| 5876682 | Nanostructured ceramic nitride powders and a method of making the same Near net-shapeable nanostructured ceramic nitride powder and a process for producing the same by nitriding molecular precursor powder in a nitrogen containing atmosphere, e.g., in ammonia, to form nanostructured ceramic nitride powder.... | 03/02/1999 |
| 5665326 | Method for synthesizing titanium nitride whiskers A method for making titanium nitride whiskers comprising reacting titanium in the presence of nitrogen in a direct nitridation reaction, concurrently reacting titania in the presence of nitrogen in a carbothermal nitridation reaction, optionally in the pr... | 09/09/1997 |
| 5597543 | Spherical nitride A spherical powder selected from the group consisting of titanium nitride, titanium carbonitride, titanium nitride containing a metal of the IVa, Va and VIa group of the periodic table, and titanium carbonitride containing a metal of the IVa, Va and VIa g... | 01/28/1997 |
| 5525320 | Process for aluminum nitride powder production Processes for the direct manufacture of nitride powders suitable for low temperature sintering are provided. An elemental vapor is contacted with a nitriding gas at temperatures between 1400 and 1973 K and atmospheric pressure to produce nitride powder.... | 06/11/1996 |
| 5453407 | Method for producing nitride ceramic powders A method for producing nitride ceramic powders includes steps of a) providing a powder, b) providing a nitride, c) providing a salt of ammonium halide, d) mixing the powder, the nitride, and the salt to form a reactant, e) wrapping up the reactant with an... | 09/26/1995 |
| 5443771 | Ceramic fibre and process therefor A process is described for producing ceramic fibres composed of titanium boride, zirconium boride or hafnium boride. The boride fibres are obtained by reacting a boron oxide precursor fibre with a titanium halide, zirconium halide or hafnium halide gas in... | 08/22/1995 |
| 5417952 | Process for synthesizing titanium carbide, titanium nitride and titanium carbonitride A process for synthesizing titanium carbide, titanium nitride or titanium carbonitride. The process comprises placing particles of titanium, a titanium salt or titanium dioxide within a vessel and providing a carbon-containing atmosphere within the vessel... | 05/23/1995 |
| 5395606 | Metal nitride powders A metal nitride powder can be made by heating a reactant powder that includes an oxide or hydroxide of Al, Ti, or Zr to a reaction temperature in a nonreactive atmosphere. The heated reactant powder is contacted with a gaseous reactant mixture comprising ... | 03/07/1995 |
| 5284639 | Method for the preparation of niobium nitride A method is disclosed for preparing and recovering metal nitrides from their ferrometal alloys and nickel metal alloys. Exemplary steps of the process involve niobium nitride prepared from ferroniobium alloys (FeNb) which are first hydrided to provide a f... | 02/08/1994 |
| 5279808 | Metal nitride powders A metal nitride powder can be made by heating a reactant powder that includes an oxide or hydroxide of Al, Ti, or Zr to a reaction temperature in a nonreactive atmosphere. The heated reactant powder is contacted with a gaseous reactant mixture comprising ... | 01/18/1994 |
| 5256608 | High hardness, wear resistant materials A powdered admixture of a boron, carbon, nitrogen or silicon derivative of a first metal is combined with a source of a second metal and, optionally, a source of a third metal or an iron-group metal, subjected to densification conditions (heat and pressur... | 10/26/1993 |
| 5223460 | High hardness, wear resistant materials A powdered admixture of a boron, carbon, nitrogen or silicon derivative of a first metal is combined with a source of a second metal and, optionally, a source of a third metal or an iron-group metal, subjected to densification conditions (heat and pressur... | 06/29/1993 |
| 5215945 | High hardness, wear resistant materials A powdered admixture of a boron, carbon, nitrogen or silicon derivative of a first metal is combined with a source of a second metal and, optionally, a source of a third metal or an iron-group metal, subjected to densification conditions (heat and pressur... | 06/01/1993 |
| 5178844 | Method and apparatus for producing nitride products A method and apparatus are provided for producing a product comprising a nitride compound, such as for example silicon nitride. A reactor is provided which has a chamber defined therein which is divided into a combustion zone and a reaction zone. A combus... | 01/12/1993 |
| 5174975 | Method of preparing metal carbides, nitrides, borides and the like A process is provided for the preparation of metals, metal carbides, nitrides, borides, silicides, sulfides and phosphides by low temperature pyrolysis of a selected organometallic precursor. The precursor, in addition to containing organic ligands, conta... | 12/29/1992 |
| 5149514 | Low temperature method of forming materials using one or more metal reactants and a halogen-containing reactant to form one or more reactive intermediates A low temperature process is described for forming a coating or powder comprising one or more metals or metal compounds by first reacting one or more metal reactants with a halide-containing reactant to form one or more reactive intermediates capable of r... | 09/22/1992 |
| 5147831 | Method for producing a fine grained powder consisting of nitrides and carbonitrides of titanium The invention relates to a method for producing fine grained, sintering active nitride and/or carbonitride powder of titanium as well as, optionally, of other metals of the IVA, VA and VIA group of the periodic table of elements. In order to achieve, with... | 09/15/1992 |
| 5139825 | Process for chemical vapor deposition of transition metal nitrides A process for depositing a thin film of a transition metal nitride, e.g., titanium nitride, on a substrate is provided. The vapors of a transition metal organometallic coompound or a transition metal amido compound are mixed with ammonia gas and allowed t... | 08/18/1992 |
| 5134102 | Method for producing composite ceramic structures using dross Production of composite ceramic articles by infiltration of a particulate, permeable bed or permeable preform with a polycrystalline matrix produced as a metal-oxidant reaction product, wherein the bed or preform is comprised of dross.... | 07/28/1992 |
| 5114695 | Process of producing aluminum and titanium nitrides A process of producing nitrides of aluminum and titanium. The process involves producing a uniform dispersion of microfine particles of the corresponding metal oxide in an infusible polymer, carbonizing the resulting dispersion in a non-oxidizing atmosphe... | 05/19/1992 |
| 5110768 | Rapid solid-state synthesis of refractory materials A process for producing a refractory material having the form TBo, e.g. zirconium nitride (ZrN), includes a first step of mixing a first salt having the form TXn, e.g. zirconium tetrachloride (ZrCl4) and a second salt havi... | 05/05/1992 |
| 5087593 | Preparation of titanium nitride from organometallic precursors A titanium tetrahalide is reacted with at least one disilazane to prepare a titanium-containing organometallic precursor, which is thereafter pyrolyzed to form crystalline titanium nitride.... | 02/11/1992 |
| 5080927 | Tin thin film formation method A thin film formation method includes the steps of holding a substrate in a reduced-pressure vapor phase reaction chamber having means for irradiating light in visible and ultraviolet ranges, supplying an organo-titanium compound containing a tri-azo grou... | 01/14/1992 |
| 5021134 | Production of nitrogen compounds A method for the production of a nitride of zirconium, hafnium, silicon, germanium, tin, lead, boron, aluminium, gallium, indium or thallium either alone or as mixtures is claimed. Ammonia and a halide of at least one of these elements are heated by means... | 06/04/1991 |
| 5002646 | Method for making titanium nitride A method which comprises the manufacture of black titanium nitride which comprises heating ammonia and titanium halide by means of an electric plasma formed in a stream of non-oxidizing gas generated by the discharge of direct current electricty between a... | 03/26/1991 |
| 4985382 | Improved ceramic composite structure comprising dross The invention relates to ceramic composite articles formed by infiltration of a particulate, permeable bed or permeable preform with a polycrystalline matrix a metal-oxidant reaction product. The bed or preform includes a dross material.... | 01/15/1991 |
| 4975260 | Process for preparing metal nitride powder Metal nitride powder is prepared by heating a mixture substantially containing powder of a metal oxide or a metal hydroxide in a mixed gas of ammonia gas (NH3) and a hydrocarbon gas (CmHn) at a temperature ranging from 1300° C. to 1,600° C., ... | 12/04/1990 |
