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...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7905966 | Method of producing a strip of nanocrystalline material and device for producing a wound core from said strip The invention relates to a method of producing a strip of nanocrystalline material which is obtained from a wound ribbon that is cast in an amorphous state, having atomic composition [Fe1−a−bCoaNib]100−x−y−z−α−βâ... | 03/15/2011 |
| 7641746 | Integrated metal processing facility An integrated metal processing facility in which molten metal is poured into a series of molds at a pouring station to form metal castings, which are then transferred to a heat treatment line. Prior to introduction of the castings into a heat treatment station of th... | 01/05/2010 |
| 7267794 | Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same Density-enhanced compositions that are comprised of at least iron and tungsten, and articles, including firearm projectiles, formed therefrom. The articles have a density that exceeds that of steel, and which may be less than, equal to, or greater than that of lead.... | 09/11/2007 |
| 7258755 | Integrated metal processing facility An integrated metal processing facility in which molten metal is poured into a series of molds at a pouring station to form metal castings, which are then transferred to a heat treatment line. Prior to introduction of the castings into a heat treatment station of th... | 08/21/2007 |
| 7258752 | Wrought stainless steel compositions having engineered microstructures for improved heat resistance A wrought stainless steel alloy composition includes 12% to 25% Cr, 8% to 25% Ni, 0.05% to 1% Nb, 0.05% to 10% Mn, 0.02% to 0.15% C, 0.02% to 0.5% N, with the balance iron, the composition having the capability of developing an engineered microstructure at a tempera... | 08/21/2007 |
| 7198684 | Method for manufacturing articles using a semi-continuous flow of workpieces through metal working and annealing apparatus A plurality of gas turbine components or other articles are manufactured from a plurality of metallic-alloy workpieces using a manufacturing apparatus having a metalworking apparatus, and an annealing apparatus wherein the individual workpieces are annealed by singl... | 04/03/2007 |
| 7074283 | Low alloy steel A low alloy steel, characterized by consisting of, by mass %, C: 0.2–0.55%, Si: 0.05–0.5%, Mn: 0.1–1%, S: 0.0005–0.01%, O(Oxygen): 0.0010–0.01%, Al: 0.005–0.05%, Ca: 0.0003–0.007%, Ti: 0.005–0.05%, Cr: 0.1–1.5%, Mo: 0.1–1% and Nb: 0.005–0.1%, a... | 07/11/2006 |
| 7005016 | Hot rolled steel having improved formability A method of producing hot rolled steel having improved formability and minimal silver formation comprises the addition of Titanium and Boron to the molten steel to combine with and remove the free nitrogen prior to rolling. Titanium is added so that the amount of ni... | 02/28/2006 |
| 6982012 | Method of manufacturing steel sheet having excellent workability and shape accuracy A method of manufacturing a high strength steel sheet containing, in mass %, C: 0.02 to 0.04%, Si: at most 0.4%, Mn: 0.5-3.0%, P: at most 0.15%, S: at most 0.03%, Al: at most 0.50%, N: at most 0.01%, and Mo: 0.01-1.0%. The method includes performing hot rough rollin... | 01/03/2006 |
| 6955209 | Method and arrangement implementing heat treatment after the execution of sprayform techniques A method and arrangement for implementing post-heat treatment after spray forming is ended to achieve stress control in the manufacture of a spray formed metallic tool involves providing a spray-formed metallic tool by applying a spray-forming material on a mold sub... | 10/18/2005 |
| 6953627 | Method for the production of thin-walled steel components and components produced therefrom A process for the production of thin walled parts of steel, wherein there are layers that are at least partly differently treatable relating to their strength and hardness qualities. This process can include creating a composite material from a plurality of differen... | 10/11/2005 |
| 6913658 | Process for the hot-dip galvanizing of metal strip made of high-strength steel A process is disclosed for the continuous thermochemical treatment of metal strip. It is useful with steel strip, of the oxidation-reduction type, in which the strip moves through a furnace in a protective atmosphere. The strip passes through at least one partial or... | 07/05/2005 |
| 6716291 | Castable martensitic mold alloy and method of making same A castable martensitic mold alloy and process for preparing same are disclosed. The composition is characterized by a ductile fine grain tempered martensite having an HRC of about 40 to about 50. The process includes forming a molten fixture of the components and th... | 04/06/2004 |
| 6695929 | Method of making material alloy for iron-based rare earth magnet A melt of an iron-based rare earth material alloy, represented by (Fe1-m Tm)100-x-y-z Qx Ry Mz, is prepared, wherein T is Co and/or Ni; Q is B and/or C; R is selected from Y (yttrium) and t... | 02/24/2004 |
| 6686061 | Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefrom A weldable structural steel product having fine complex precipitates of TiN and CuS is provided which contains, in terms of percent by weight, 0.03 to 0.17%C, 0.01 to 0.05% Si, 0.4 to 2.0% Mn, 0.005 to 0.2% Ti, 0.0005 to 0.1% Al, 0.008 to 0.030% N, 0.0003... | 02/03/2004 |
| 6635313 | Method for coating a steel alloy A method of coating dual phase high strength cold rolled steel having controlled amounts of carbon, manganese, and molybdenum is used as a starting material in a galvanizing/galvannealing process. Conditions in a multi-zone furnace of the galvanizing line... | 10/21/2003 |
| 6586117 | Steel sheet having excellent workability and shape accuracy and a method for its manufacture A steel for forming a high strength steel sheet contains, in mass %, C: at most 0.04%, Si: at most 0.4%, Mn: 0.5-3.0%, P: at most 0.15%, S: at most 0.03%, Al: at most 0.50%, N: at most 0.01%, and Mo: 0.01-1.0%. Steel sheet formed from the steel is suitabl... | 07/01/2003 |
| 6517955 | High strength galvanized steel plate excellent in adhesion of plated metal and formability in press working and high strength alloy galvanized steel plate and method for production thereof The invention relates to a high strength hot-dip galvanized and galvannealed steel sheets with excellent drawability for press forming and excellent plating adhesion that is useful as a member for automobiles, construction, electric devices and the like, ... | 02/11/2003 |
| 6511553 | Steel for steel excellent in workability and method of deoxidizing same The present invention provides a steel for steel sheets excellent in workability and showing significantly decreased formation of surface defects, and a method of deoxidizing molten steel for the steel for steel sheets which prevents nozzle clogging durin... | 01/28/2003 |
| 6461402 | Molding powder for continuous casting of steel and method for continuous casting of steel An object of the present invention is to provide a mold powder for continuous casting of steel whose fluorine content is small, and which enables stable casting, for reducing the corrosion of continuous casting equipment and decreasing the concentration o... | 10/08/2002 |
| 6355089 | Process for the manufacture of carbon or low-alloy steel with improved machinability A carbon or low-alloy steel is provided with improved machinability. The carbon content of the steel is less than 1.5% and the sum of the alloy elements contained therein is less than 9%. The steel contains oxide and sulfide inclusions, and the chemical c... | 03/12/2002 |
| 6328820 | Spring steel superior in fatigue properties A spring steel containing SiO2, Al2 O3, CaO, and MgO as oxide type inclusions, which have an average composition (by weight) of 35%ࣘSiO2ࣘ75%, 5%ࣘAl2 O3ࣘ30%, 10%ࣘCaOࣘ50%, and MgO... | 12/11/2001 |
| 6328825 | Alloy used for production of a rare-earth magnet and method for producing the same An alloy used for the production of a rare-earth magnet alloy, particularly the boundary-phase alloy in the two-alloy method is provided to improve the crushability. The Alloy consists of (a) from 35 to 60% of Nd, Dy and/or Pr, and the balance being Fe, o... | 12/11/2001 |
| 6221184 | Process of the production of high-carbon cast steels intended for wearing parts The invention relates to a process for producing cast wearing parts of high-carbon alloy steels having the composition expressed in weight % of: carbon 0.6 to 2% manganese 0.5 to 6% ... | 04/24/2001 |
| 6221179 | Hot rolled steel plate to be processed having hyper fine particles, method of manufacturing the same, and method of manufacturing cold rolled steel plate A hot rolled steel sheet with improved formability and producing method therefor, which can be easily produced with general hot strip mills, having less anisotropy of mechanical properties and final ferrite grain diameter of less than 2 μm that could not... | 04/24/2001 |
| 6136101 | Casting material for thixocasting, method for preparing partially solidified casting material for thixocasting, thixo-casting method, iron-base cast, and method for heat-treating iron-base cast A thixocast casting material is formed of an Fe--C--Si based alloy in which an angle endothermic section due to the melting of a eutectic crystal exists in a latent heat distribution curve and has a eutectic crystal amount Ec in a range of 10% by weight | 10/24/2000 |
| 6136102 | Maraging steel A maraging steel containing the following: Ni 14-23 wt. %, Mo 4-13 wt. %, Al 1-3.5 wt. %, Cࣘ0.01 wt. %, remainder Fe and impurities resulting from the processing. The composition also preferably satisfies the following conditions: Ni+Mo=23-27 wt. %, inc... | 10/24/2000 |
| 6129791 | Oxides dispersion steel and making process thereof In carbon steel, oxides with grain diameter of 1 μm or less and with grain spacing of 6 μm or less are dispersed to suppress growth of γ grains by heating at γ region temperature.... | 10/10/2000 |
| 6110305 | Method for production of high-strength low-expansion cast iron A method is proposed for the production of high-strength low-expansion cast iron enabled to acquire improved strength, hardness, and cutting workability while retaining the property of low expansion intact. The product is a low-expansion cast iron having ... | 08/29/2000 |
| 6110296 | Thin strip casting of carbon steels A substantially carbon free (e.g. 50-80 ppm carbon max.) iron base melt is strip cast to provide a cast strip having a low strength, high ductility, essentially ferrite matrix substantially free of hardening acicular ferrite, bainite and martensite phases... | 08/29/2000 |
| 5738737 | Process for making superplastic steel powder and flakes In a process for making superplastic steel powder or flakes, molten steel is rapidly solidified to form a solidified material comprising substantially single-phase austenitic steel powder or flakes having a grain size of no greater than about 2 μm. The p... | 04/14/1998 |
| 5720830 | Engineering ferrous metals and method of making thereof A method of making an engineering ferrous metal comprising the steps of adding to liquid engineering ferrous metal solid alloy carbide particles and thereafter permitting the ferrous metal to solidify. The alloy carbide particles are coated with iron or a... | 02/24/1998 |
| 5470402 | Ferritic heat-resistant cast steel and process for producing the same A ferritic heat-resistant cast steel includes C in an amount of from 0.1 to 0.4% by weight, Si in an amount of from 0.5 to 2.0% by weight, Mn in an amount of 1.0% by weight or less, S in an amount of from 0.06 to 0.20% by weight, Ni in an amount of 1.0% b... | 11/28/1995 |
| 5466304 | Amorphous iron based alloy and method of manufacture Disclosed are an amorphous iron based alloy having excellent magnetic characteristics as well as bendability and a method of manufacturing the amorphous iron based alloy. The amorphous iron based alloy has a mean centerline Ra surface roughness of about 0... | 11/14/1995 |
| 5449491 | Method of producing diamond crystals from metallfullerite matrix and resulting product A method of producing diamond crystals from a metallofullerite matrix independent of external application of pressure is disclosed. The method comprises hyperquenching a portion of a metallic sold comprising a metal carbon matrix of an allotropic metal an... | 09/12/1995 |
| 5439535 | Process for improving strength and plasticity of wear-resistant white irons Composition and process for the manufacture of wear-resistant white iron, and articles made therefrom. A melt is solidified that contains iron, carbon and at least two carbide forming elements selected from silicon, manganese, chromium or mixtures thereof... | 08/08/1995 |
| 5290372 | Fe-Mn group vibration damping alloy manufacturing method thereof A vibration damping alloy has a mixed structure of martensite and austenite. The alloy steel is iron-based to which 14-22% by weight of manganese is added. The vibration damping alloy is manufactured by mixing electrolytic iron and manganese in a molten s... | 03/01/1994 |
| 5288342 | Solid metal-carbon matrix of metallofullerites and method of forming same A metallic solid comprising an metal-carbon matrix of an allotropic metal and metallofullerites of the allotropic metal is disclosed, along with an associated method of forming the solid by interrupting and temporarily holding a metal-carbon melt at the p... | 02/22/1994 |
| 5288346 | Process for producing deformable white cast iron A process for deforming white cast iron. A melt is prepared containing iron, carbon and one or more alloying elements. The melt is cooled at a rate of approximately 2° C. per minute or faster to form a white cast iron material. The white cast iron materi... | 02/22/1994 |
| 5288455 | Steel for rotor shafts of electric machines and method and product thereof New low-alloy steel compositions and rotor shafts for electric machines made from them are described. High nickel and chromium contents ensure high strength and toughness, while other components, notably silicon and other impurities, are kept low with the... | 02/22/1994 |
