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| Number | Title | Issue Date |
| 8163110 | Superfine copper alloy wire and method for manufacturing same A superfine copper alloy wire has a copper-silver alloy wherein the superfine copper alloy wire has a final wire diameter of 0.05 mm or less, and the copper-silver alloy has a copper-silver eutectic crystal phase whose volume ratio to a whole volume of the superfine... | 04/24/2012 |
| 7416620 | Copper alloy and method for its manufacture The invention relates to a copper alloy having high recrystallization temperature and good conductivity used in brazed heat exchangers which alloy consists of 0.1 to 0.3% in weight chromium. The invention also relates to a method for the manufacturing of the alloy w... | 08/26/2008 |
| 7204893 | Copper base alloy casting, and methods for producing casting and forging employing copper base alloy casting In the present invention, forming is carried out by employing casting to rapidly solidify molten material comprising a copper base alloy containing 3 to 20% Ag (mass % hereinafter), 0.5 to 1.5% Cr and 0.05 to 0.5% Zr. Next, an aging treatment for precipitation is ca... | 04/17/2007 |
| 7182823 | Copper alloy containing cobalt, nickel and silicon A copper alloy having an improved combination of yield strength and electrical conductivity consists essentially of, by weight, from 1% to 2.5% of nickel, from 0.5% to 2.0% of cobalt, from 0.5% to 1.5% of silicon, and the balance is copper and inevitable impurities.... | 02/27/2007 |
| 7066092 | Industrial ammunition A projectileless ammunition system (20; 320) includes a metallic case (22; 322). A propellant charge (26; 326) is carried by the case and covered by an over-powder member (24; 324) in the absence of a separate projectile. The ammunition i... | 06/27/2006 |
| 6849139 | Methods of forming copper-containing sputtering targets The invention includes a method of forming a sputtering target containing copper of a purity of at least about 99.999 wt. %, and at least one component selected from the group consisting of Ag, Sn, Te, In, B, Bi, Sb, and P dispersed within the copper. The total of A... | 02/01/2005 |
| 6800151 | Method of modifying properties of high-strength, high-conductivity Cu-Ag alloy plate, and method of producing high-strength, high conductivity Cu-Ag alloy plate The present invention provides a method of modifying conductivity- and strength-related properties of a Cu—Ag alloy plate produced by predetermined annealing and cold rolling, composed of 4 to 32% by atom of Ag and Cu accounting for the balance, wherein the plate ... | 10/05/2004 |
| 6689232 | Copper alloy The present invention relates to copper-magnesium-phosphorous alloys. In a first embodiment, copper-magnesium-phosphorous alloys in accordance with the present invention consist essentially of magnesium in an amount from about 0.01 to about 0.25% by weigh... | 02/10/2004 |
| 6679956 | Process for making copper-tin-zinc alloys A process for making a copper base alloy comprises the steps of casting a copper base alloy containing tin, zinc, iron and phosphorous and forming phosphide particles uniformly distributed throughout the matrix. The forming step comprises homogenizing the... | 01/20/2004 |
| 6648993 | Castings from alloys having large liquidius/solidus temperature differentials The casting porosity of an unwrought casting made from an alloy having a large difference between its liquidus and solidus temperatures is reduced by subjecting the casting to hot isostatic pressing.... | 11/18/2003 |
| 6627055 | Manufacture of fine-grained electroplating anodes A continuously cast copper ingot is made by a procedure in which turbulence is imparted to the metal/solid interface during the casting operation. The ingot is then hot worked to form a billet having a smaller average grain size and a larger diameter than... | 09/30/2003 |
| 6531039 | Anode for plating a semiconductor wafer An anode for use in electroplating semiconductor wafers, comprising a metal plate formed from a generally continuous casting process that is essentially free of voids or cracks, the casting being thermo-mechanically worked until the anode has an average g... | 03/11/2003 |
| 6506269 | High-strength and high-conductivity Cu-(Ni, Co, Fe)-Si copper alloy for use in leadframes and method of making the same A high-strength and high-conductivity copper alloy is disclosed which contains essentially of: (a) from 0.5 to 2.5 wt % of Ni; (b) from 0.5 to 2.5 wt % of Co; (c) from 0.5 to 0.8 wt % of Si; (d) from 0.05 to 0.15 wt % of either Mg or P or both; and (e) th... | 01/14/2003 |
| 6436206 | Copper alloy and process for obtaining same The present invention relates to copper base alloys containing tin, phosphorous, iron, and zinc and having phosphide particles uniformly distributed through the alloy matrix, which phosphide particles include fine and coarse phosphide particles. The alloy... | 08/20/2002 |
| 6395110 | Copper-based alloy excelling in corrosion resistance, method for production thereof, and products made of the copper-based alloy The present invention provides a copper-based alloy characterized by: having a composition of 58.0 to 63.0% by weight of Cu, 0.5 to 4.5% by weight of Pb, 0.05 to 0.25% by weight of P, 0.5 to 3.0% by weight of Sn, 0.05 to 0.30% by weight of Ni, and the bal... | 05/28/2002 |
| 6350355 | Starting cathodes made of copper band for copper electrolysis and a method for the production thereof The object of this invention was to create starting copper cathodes which prevent a memory effect during copper electrolysis, achieving a high production output of electrolytic copper and which can also be manufactured from directly shaped copper sheeting... | 02/26/2002 |
| 6299708 | Carbide dispersed, strengthened copper alloy A carbide dispersed, strengthened copper alloy includes copper as a major constituent, carbide particles, and a dispersing agent. The carbide particles consist of one or more carbides selected from chromium carbide, tungsten carbide, molybdenum carbide, a... | 10/09/2001 |
| 6254702 | Copper base alloys and terminals using the same A copper alloy for terminals of the Cu--Ni--Sn--P system or Cu--Ni--Sn--P--Zn system and that has a tensile strength of at least 500 N/mm2, a spring limit of at least 400 N/mm2, a stress relaxation of no more than 10%, a conductivity... | 07/03/2001 |
| 6153031 | Lean, high conductivity, relaxation-resistant beryllium-nickel-copper alloys A higher order beryllium-nickel-copper alloy a process for making the same, and an article of manufacture comprising the alloy, the alloy being represented by the formula (0.15-0.5% Be)+(0.40-1.25% Ni)+(0-0.25% Sn)+[0.06-1% Zr) and/or (0.06-1% Ti)], the b... | 11/28/2000 |
| 6149741 | Copper-based alloy having a high electrical conductivity and a high softening temperature for application in electronics A method for forming supports for use in electronic components. A plate of copper-based alloy including from 0.1 to 1.0% by weight nickel, and from 0.005 to 0.1% by weight of phosphorus is melted and cast. The alloy includes fine precipitates of nickel ph... | 11/21/2000 |
| 6059905 | Process for treating a copper-beryllium alloy A treatment process is provided for a copper-beryllium alloy comprising from about 0.2% to about 0.7% beryllium, no greater than 3.5% of cobalt and/or nickel, no greater than 0.5% of titanium and/or zirconium and at least 90% copper, wherein the alloy has... | 05/09/2000 |
| 5993574 | Lean, high conductivity, relaxation-resistant beryllium-nickel-copper alloys A higher order beryllium-nickel-copper alloy a process for making the same, and an article of manufacture comprising the alloy, the alloy being represented by the formula (0.15-0.5% Be)+(0.40-1.25% Ni)+(0-0.25% Sn)+[(0.06-1% Zr) and/or (0.06-1% Ti)], the ... | 11/30/1999 |
| 5919322 | Alloy, in particular for use in the manufacture of frames for glass, jewelry, and the like A high-temperature, nickel-free alloy, in particular for spectacle frames, jewelry, etc. With the following composition in percentages by weight: Zn 3.0-7.0% Mn 8.0-13.0% Fe 0.5-3.5% Al 4.5-8.00 Cu the remainder.... | 07/06/1999 |
| 5916386 | Copper alloy and process for obtaining same A copper base alloy consisting essentially of tin in an amount from about 1.0 to 11.0% by weight, phosphorous in an amount from about 0.01 to 0.35% by weight, iron in an amount from about 0.01 to about 0.8% by weight, and the balance essentially copper, i... | 06/29/1999 |
| 5846346 | High strength high conductivity Cu-alloy of precipitate growth suppression type and production process This invention relates to a high strength, high electrical conductivity copper alloy having excellent mechanical and physical properties, including thermal softening resistance, in which precipitate particles are finely dispersed (growth of the precipitat... | 12/08/1998 |
| 5601665 | Process for improving the bend formability of copper alloys There are disclosed processing methods to improve the properties of copper base alloys containing chromium and zirconium. One method of processing results in a copper alloy having high strength and high electrical conductivity. A second method of processi... | 02/11/1997 |
| 5534087 | Method of producing Cu - Ag alloy based conductive material A method for producing a Cu--Ag alloy based conductive material containing about 10% to about 20% at % Ag, that involves the steps of continuously casting the alloy into a rod followed by quickly cooling the rod, cold-working the rod to a reduction in are... | 07/09/1996 |
| 5486244 | Process for improving the bend formability of copper alloys There are disclosed processing methods to improve the properties of copper base alloys containing chromium and zirconium. One method of processing results in a copper alloy having high strength and high electrical conductivity. A second method of processi... | 01/23/1996 |
| 5391243 | Method for producing wire for electric railways A wire for electric railways comprises a copper alloy which consists essentially, by weight percent, of 0.1 to 1.0% Cr, 0.01 to 0.3% Zr, and 10 ppm or less O, and if required, further contains at least one element selected from the group consisting of 0.0... | 02/21/1995 |
| 5391242 | High-strength and high-conductivity copper alloy sheet A high-strength and high-conductivity copper alloy sheet is provided, which consists of a composition of from 6 to 24 wt. % Ag, and Cu and impurities as the balance, and has a sheet structure in which Cu solid solution and Ag solid solution are streched i... | 02/21/1995 |
| 5354388 | Production of beryllium-copper alloys and beryllium copper alloys produced thereby A process for producing the beryllium-copper alloy comprises the steps of casing a beryllium-copper alloy composed essentially of 1.00 to 2.00% by weight of Be, 0.18 to 0.35% by weight of Co, and the balance being Cu, rolling the cast beryllium-copper all... | 10/11/1994 |
| 5322575 | Process for production of copper base alloys and terminals using the same A copper base alloy for terminals that is superior in all aspects of tensile strength, spring limits, conductivity, and stress relaxation characteristics can be produced by a process repeating the cycles consisting of hot-rolling, cold-rolling and anneali... | 06/21/1994 |
| 5286315 | Process for preparing rollable metal sheet from quenched solidified thin cast sheet as starting material The present invention relates to a process for preparing a metal sheet having an excellent rolling property, i.e., a rollable metal sheet, which process comprises the basic steps of: continuously feeding a molten metal on a cooling material having one or ... | 02/15/1994 |
| 5198044 | Copper alloy and process for its preparation Process for the preparation of a substantially homogeneous alpha phase copper-nickel-tin alloy comprising copper and 4-18% by weight of nickel and 3-13% by weight of tin, comprising atomizing a molten alloy having the before-indicated composition and coll... | 03/30/1993 |
| 5196074 | Copper alloys capable of spinodal decomposition and a method of obtaining such alloys A method is disclosed for manufacturing a finished product which consists at least partially of a copper nickel and tin based alloy which has undergone spinodal decomposition. A liquid bath of the Cu Ni Sn based alloy is prepared containing also titanium ... | 03/23/1993 |
| 5106433 | Heat-conductive composite material A heat-conductive composite material usable as a substrate (heat sink) for mounting a semiconductor thereon or a lead frame is provided, which comprises a core sheet and metal foil layers as welded to the both surfaces of the core sheet. The core sheet is... | 04/21/1992 |
| 5104457 | Golf clubs and method of making thereof The present invention provides for a method of making a golf club head which comprises the steps of casting the head in an alloy having copper and aluminum as its major constituents by weight, fettling the cast head as required, heat-treating the head by ... | 04/14/1992 |
| 5085712 | Iron/copper/chromium alloy material for high-strength lead frame or pin grid array An iron/copper/chromium alloy material for a high-strength lead frame or pin grid array, which comprises 20 to 90% by weight of Cu and 2.5 to 12% by weight of Cr, with the balance being mainly iron, and which has an average grain size number of at least 1... | 02/04/1992 |
| 5074921 | Copper alloy and method Method of making a copper alloy to be used as a mold for continuous casting and comprising from 0.05% to 0.4% zinc; from 0.02% to 0.3% magnesium; from 0.02% to 0.2% phosphorus; all percentages by weight; the remainder being copper, and inevitable impuriti... | 12/24/1991 |
| 5074922 | Method of producing beryllium copper alloy member A beryllium copper alloy member is provided having both a high electrical conductivity of not less than 70% IACS and a high strength of not less than 70 kgf/mm2 by an extensively simplified production method which widely decreases the productio... | 12/24/1991 |
