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| Number | Title | Issue Date |
| 7413619 | Copper alloy Raw materials for a copper alloy are melted in a high frequency smelter and cast, and milling, rolling, and annealing are carried out. Then, rolling is again carried out. Thereafter, the materials are heated at a temperature of 900° C. for one minute and are quench... | 08/19/2008 |
| 7410546 | Platinum alloy and method of production thereof The disclosure relates to a platinum alloy comprising (a) 55 to 63 wt. % of platinum, (b) 2 to 10 wt. % of cobalt, and (c) 27 to 43 wt. % of copper. The disclosure further relates to a platinum alloy comprising (a) 70 to 79.5 wt. % of platinum, 2 to 10. wt. % of cob... | 08/12/2008 |
| 7291231 | Copper-nickel-silicon two phase quench substrate A copper-nickel-silicon quench substrate rapidly solidifies molten alloy into microcrystalline or amorphous strip. The substrate is composed of a thermally conducting alloy. It has a two-phase microstructure with copper rich regions surrounded by a discontinuous net... | 11/06/2007 |
| 7220494 | Metal dusting resistant product A product resistant or immune to carburization, metal dusting, coking, oxidation, and having sufficient mechanical strength for use at temperatures greater than 400° C. The product consists of a load-bearing member and a corrosion resistant member, wherein the corr... | 05/22/2007 |
| 6764556 | Copper-nickel-silicon two phase quench substrate A copper-nickel-silicon quench substrate rapidly solidifies molten alloy into microcrystalline or amorphous strip. The substrate is composed of a thermally conducting alloy. It has a two-phase microstructure with copper rich regions surrounded by a network of nickel... | 07/20/2004 |
| 6531003 | Abrasion resistant copper alloy, copper alloy powder for build-up cladding, and engine cylinder head A valve seat (2) is formed by build-up cladding by irradiating a laser beam on a copper alloy powder (4) provided in the rim of a port (3) formed in an engine cylinder head (1). The copper alloy powder (4) consists of copper (Cu), 6-9 wt % nickel (Ni), 1-... | 03/11/2003 |
| 6391163 | Method of enhancing hardness of sputter deposited copper films The present invention provides a method and apparatus for forming a copper layer on a substrate, preferably using a sputtering process. The sputtering process involves bombarding a conductive member of enhanced hardness with ions to dislodge the copper fr... | 05/21/2002 |
| 6334915 | Copper alloy sheet for electronic parts A copper alloy sheet comprises 0.4 to 2.5 wt % of Ni, 0.05 to 0.6 wt % of Si, 0.001 to 0.05 wt % of Mg, and the balance being Cu and inevitable impurities wherein an average grain size in the sheet is in the range of 3 to 20 μm and a size of an intermeta... | 01/01/2002 |
| 5658401 | Copper-zinc alloy A copper-zinc alloy for semi-finished products and articles which are highly loaded and subjected to extreme wear especially synchronizing rings. The alloy possesses a composition of 40 to 65% Cu, 8 to 25% Ni, 2.5 to 5% Si, 0 to 3% Al, 0 to 3% Fe, 0 to 2%... | 08/19/1997 |
| 5656104 | Metal mold for glass forming The present invention aims to provide a metal mold for glass, which needs not apply any swab in molding of glass, enabling no-swabbing glass forming. The alloy for the mold comprises by weight Cu: 10 to 80%, Al: 4 to 11%, Cr: 3 to 16%, Ni: 2 to 36%, and a... | 08/12/1997 |
| 5487867 | Copper-bismuth casting alloys A copper based casting alloy in which lead is replaced by 0.1 to 7 wt % bismuth and 0.1 to 2 wt % mischmetal or its rare earth equivalent is used to improve the distribution of bismuth in the alloy. The alloy is further defined by additions of tin, zinc, ... | 01/30/1996 |
| 5468310 | High temperature abrasion resistant copper alloy A high temperature abrasion resistant copper alloy suitable for the material of engine parts such as valve seats and valve guides. The copper alloy comprising aluminum in an amount ranging from 1.0 to 15.0% by weight; at least one element selected from th... | 11/21/1995 |
| 5441554 | Alloy coating for aluminum bronze parts, such as molds A blended flame spray powder composition is provided for use in producing a bonded wear resistant coating on an aluminum bronze substrate such as a glass mold part. The blended composition comprises a copper-base alloy mixed with a nickel-base alloy, the ... | 08/15/1995 |
| 5441696 | Copper-nickel based alloy A copper-nickel based alloy, which comprises 3 to 25 wt % of Ni, 0.1 to 1.5 t % of Mn, 0.0001 to 0.01 wt % of B and the rest being Cu and an unavoidable element.... | 08/15/1995 |
| 5288683 | Wear-resistant copper alloys and synchronizer rings for automobiles comprising the same A wear-resistant copper alloy which consists essentially of 56 to 65 wt. % of Cu, 28 to 32 wt. % of Zn, 3.5 to 5.5 wt. % of Al, 0.5 to 2.0 wt. % of Fe, 1.0 to 3.0 wt. % of Ni, 0.1 to 1.0 wt. % of Nb, and 0.4 to 1.5 wt. % of Ti, provided that Ti+Nb is equa... | 02/22/1994 |
| 5164157 | Copper based alloy A copper based alloy, which when employed in a marine environment with a cathodic protection system or when galvanically coupled to a dissimilar metal, is resistant to hydrogen embrittlement, copper being present in an amount of about 70% to 80% by weight... | 11/17/1992 |
| 5098654 | Alloy based on copper, manganese and aluminum, and objects made of said alloy An alloy based on copper, manganese and aluminum, said alloy further containing iron and nickel, besides unavoidable impurities, with less than 7% by weight zinc and possible other metals, which alloy is formed of 10-55% by weight manganese, 4-10% by weig... | 03/24/1992 |
| 5074933 | Copper-nickel-tin-silicon alloys having improved processability The invention provides a process for the manufacture of copper alloys having improved processability. The alloys are melted and atomized into droplets which are spray cast into a coherent deposit. The spray cast alloys are characterized by a finer dispers... | 12/24/1991 |
| 5026441 | High strengths copper base shape memory alloy and its manufacturing process This invention is concerned with the development of a Cu-base shape memory alloy and it's manufacturing process. The alloy is a Cu-Al-Ni-Zr-Si shape memory alloy exhibiting high strength(830Mpa, 85kg/mml) and good ductility(7.5 - 8%) due to grain size ref... | 06/25/1991 |
| 4994235 | Wear-resistance aluminum bronze alloy Disclosed herein is a wear-resistance aluminum bronze alloy comprising 4 to 15 wt % of Al, 0.1 to 10 wt % of Cr and the balance Cu, and optionally containing not more than 6 wt % of Ni and not more than 15 wt % of Mn.... | 02/19/1991 |
| 4935202 | Electrically conductive spring materials An electrically conductive material including 0.15% to 0.35% of Be, 0.3% to 1.5% of Al, either one or both of Ni and Co in a total amount of 1.6% to 3.5%, in terms of weight, and the balance being Cu with inevitable impurities. The alloy may further conta... | 06/19/1990 |
| 4927788 | Monolithic female connector A monolithic female connector made of a copper-base alloy consisting essentially of 7-15 wt % Ni, 1.0-2.0 wt % Al, no more than 0.0050 wt % 02, and the balance of Cu and incidental impurities is highly useful as an electrical connector element ... | 05/22/1990 |
| 4873674 | Corrosion resistant bronze alloys and glass making mold made therefrom A bronze alloy composition for glass making molds that has excellent corrosion resistance and resistance to pitting, the composition comprising copper, aluminum, nickel, iron, manganese, and a critical amount of silicon to provide the resistance to pittin... | 10/10/1989 |
| 4830825 | Corrosion-resistant copper alloy Disclosed is a corrosion-resistant copper alloy having a composition consisting essentially, by weight, of 5 to 9% of Al, 0.5 to 4% of Ni, 0.5 to 4% of Fe, 0.1 to 3% of Mn, 0.001 to 1% of Ti, at least one selected from 0.001 to 1% of Co and 0.001 to 0.1% ... | 05/16/1989 |
| 4818307 | Dispersion strengthened copper-base alloy Herein disclosed is a dispersion strengthened copper-base alloy having an excellent wear resistance, which alloy contains 5 to 30% (in weight) of nickel, 1 to 5% of silicon, 0.5 to 3% of boron and 4 to 30% of iron, the remainder being copper and unavoidab... | 04/04/1989 |
| 4805009 | Hermetically sealed semiconductor package The present invention is directed to several embodiments of a hermetically sealed semiconductor package. One embodiment is constructed from a substrate of a first copper alloy, a cover member of a second copper alloy and a lead frame of a third copper all... | 02/14/1989 |
| 4732602 | Bronze alloy for glass container molds This invention relates to a copper base alloy with improved toughness and weldability for use in making molds for glass containers. The alloy of the present invention contains copper, nickel and aluminum and may have intentional additions of iron for grai... | 03/22/1988 |
| 4715910 | Low cost connector alloy The present invention relates to a copper base alloy consisting essentially of from about 3.5% to about 6.0% aluminum, from about 0.1% to about 3.0% nickel, from about 0.03% to about 1.0% magnesium and the balance essentially copper. The alloys of the pre... | 12/29/1987 |
| 4666795 | Clad material for ornamental use In construction of a clad material for ornamental use such as eyeglass frames and watch bands, use of age-hardenable alloy sheath followed by age-hardening enables production of product with light weight, high mechanical strength, excellent workability an... | 05/19/1987 |
| 4661178 | Beta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same A predominately beta phase copper base alloy which is adapted for forming in a semi-solid slurry condition. The alloy has a microstructure comprising discrete particles within a lower melting point matrix and consists essentially of from about 9% to about... | 04/28/1987 |
| 4634477 | Workable high strength shape memory alloy A workable high strength shape memory alloys comprising: Al: 11.5-13.5%, Ni: 2-6%, Mn: 1-5%, Ti: 0.1-5%, each on the weight basis, and the balance of Cu and inevitable impurities. In the modified alloy composition, the workability can be improved without increasing... | 01/06/1987 |
| 4612167 | Copper-base alloys for leadframes A copper-base alloy for leadframes comprising 0.8-4.0 weight % of Ni, 0.2-4.0 weight % of Ti, and balance Cu and inevitable impurities, the ratio of Ni to Ti being 1-4. It may also comprise 0.1-2.0 weight % of Zn. It may further comprise 0.01-2.0 weight %... | 09/16/1986 |
| 4594117 | Copper base alloy for forging from a semi-solid slurry condition A process and apparatus for forming a thin-walled, elongated member having superior strength properties from an age hardenable copper base alloy consisting essentially of about 3% to about 20% nickel, about 5% to about 10% aluminum, and the balance essent... | 06/10/1986 |
| 4589938 | Single phase copper-nickel-aluminum-alloys Novel gold colored copper alloy compositions of single phase crystal structure possessing a combination of good cold and hot workability, excellent ductility and excellent corrosion, pitting, and tarnishing resistance. The compositions contain between abo... | 05/20/1986 |
| 4585494 | Beta copper base alloy adapted to be formed as a semi-solid metal slurry and a process for making same A predominately beta phase copper base alloy which is adapted for forming in a semi-solid slurry condition. The alloy has a microstructure comprising discrete particles within a lower melting point matrix and consists essentially of from about 9% to about... | 04/29/1986 |
| 4493736 | Tarnish-resistant copper alloy and method of preparation An alloy of copper, aluminum, nickel and indium is found useful in the fabrication of jewelry and dental appliances. The alloy resists tarnishing and has a gold-like appearance.... | 01/15/1985 |
| 4436544 | Aluminum bronze glassmaking molds The present invention provides aluminum bronze glassmaking molds. The molds are substantially free of zinc and lead, consist essentially of manganese, nickel, iron, aluminum and copper, and exhibit superior wear resistance, durability, pitting and oxidati... | 03/13/1984 |
| 4434016 | Precipitation hardenable copper alloy and process An improved copper base alloy for use in electrical springs and a process of treating the alloy provide improved resistance to stress relaxation when the alloy is in a solution treated and aged condition having a discontinuous precipitate. The alloy consi... | 02/28/1984 |
| 4406858 | Copper-base alloys containing strengthening and ductilizing amounts of hafnium and zirconium and method Tensile strength and ductility of copper-base alloys having poor intermediate temperature range ductility are substantially increased by relatively small alloying additions of hafnium or zirconium.... | 09/27/1983 |
| 4401488 | Gold-colored coin material An alloy useful as a coinage alloy, especially as a cladding for a coin comprising a core and a cladding is disclosed. The alloy consists essentially of 4 to 6% nickel, 4 to 6% aluminum, balance copper and inevitable impurities which are due to the manufa... | 08/30/1983 |
