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| Number | Title | Issue Date |
| 7351372 | Copper base alloy and method for producing same As a raw material of a copper base alloy containing at least one of 0.2 to 12 wt % of tin and 8 to 45 wt % of zinc, at least one of a copper base alloy having a large surface area and containing carbon on the surface thereof, a copper base alloy having a liquidus li... | 04/01/2008 |
| 7270892 | Friction bearing The invention describes a friction bearing with a steel support shell and a lead-free bearing metal layer on the basis of copper with the main alloy elements of tin and zinc, which layer is applied to the support shell. In order to combine advantageous sliding prope... | 09/18/2007 |
| 7172662 | Copper alloy material for parts of electronic and electric machinery and tools A copper alloy material for parts of electronic and electric machinery and tools contains 1.0 to 3.0 mass % of Ni, 0.2 to 0.7 mass % of Si, 0.01 to 0.2 mass of Mg, 0.05 to 1.5 mass % of Sn, 0.2 to 1.5 mass % of Zn, and less than 0.005 mass % (including 0 mass %) of ... | 02/06/2007 |
| 7163753 | Arc-resistant terminal, arc-resistant terminal couple and connector or the like for automobile An arc-resistant terminal, couple, and connecter are provided. In an embodiment, a metal-based electrical contact portion thereof includes at least one of Cu, Ni or Sn, and not more than 0.06 mass % P, wherein the arc-resistant terminal capable of suppressing arc di... | 01/16/2007 |
| 7090732 | High-mechanical strength copper alloy A high-mechanical strength copper alloy, which comprises Ni 1.0 to 4.5% by mass, Si 0.2 to 1.0% by mass, Mg 0.01 to 0.20% by mass, Sn 0.05 to 1.5% by mass, Zn 0.2 to 1.5% by mass, and S less than 0.005% by mass (including 0% by mass), with the balance being made of ... | 08/15/2006 |
| 6942742 | Copper-based alloy excellent in dezincing resistance A copper-based alloy excellent in dezincing resistance comprises, in percentage by weight, Cu: 57-69%, Sn: 0.3-3%, Si: 0.02-1.5%, Bi: 0.5-3%, and Pb: not more than 0.2%, where the ratio of Si/Sn expressed in weight percentage is in the range of 0.05-1 and apparent z... | 09/13/2005 |
| 6939509 | Method for manufacturing metal parts The invention relates to a method for producing metal bodies by mixing metal compound particles with a binding agent and compacting them to form shaped parts, whereby the binding agent is subsequently removed and the metal compound is reduced to metal by gassing the... | 09/06/2005 |
| 6893514 | High-mechanical strength copper alloy A high-mechanical strength copper alloy, which comprises Ni 3.5 to 4.5% by mass, Si 0.7 to 1.0% by mass, Mg 0.01 to 0.20% by mass, Sn 0.05 to 1.5% by mass, Zn 0.2 to 1.5% by mass, and S less than 0.005% by mass (including 0% by mass), with the balance being made of ... | 05/17/2005 |
| 6797137 | Mechanically alloyed precious metal magnetic sputtering targets fabricated using rapidly solidfied alloy powders and elemental Pt metal A cobalt-chromium-boron-platinum sputtering target alloy having multiple phases. The alloy can include Cr, B, Ta, Nb, C, Mo, Ti, V, W, Zr, Zn, Cu, Hf, O, Si or N. The alloy is prepared by mixing Pt powder with a cobalt-chromium-boron master alloy, ball milling the p... | 09/28/2004 |
| 6716541 | Material for a metal strip The material for a metal strip for manufacturing electrical contact component parts has, expressed in percent by weight, the following composition: | 04/06/2004 |
| 6695934 | Copper alloy and process for obtaining same A copper base alloy consisting essentially of tin in an amount from about 0.1 to about 1.5% by weight, phosphorous in an amount from about 0.01 to about 0.35% by weight, iron in an amount from about 0.01 to about 0.8% by weight, zinc in an amount from abo... | 02/24/2004 |
| 6482276 | Copper alloy with punchability, and a manufacturing method thereof A copper alloy with excellent punchability, comprising 0.2 to 0.35 wt % of Cr, 0.1 to 0.5 wt % of Sn, and 0.1 to 0.5 wt % of Zn, the balance being made of Cu and unavoidable impurities, wherein, in a Cu matrix, a precipitation phase A of Cr or a Cr compou... | 11/19/2002 |
| 6464810 | Brass material, brass tube and their production method An object is to improve machinability and polishability of a brass material prepared through cold working, particularly in a brass pipe material. Before cold working, by having an phase making heat treatment step for increasing an area ratio of an... | 10/15/2002 |
| 6136104 | Copper alloy for terminals and connectors and method for making same A copper alloy which is adapted for use as terminals and connectors, which comprises from 0.1 wt % to less than 0.5 wt % of Ni, from larger than 1.0 wt % to less than 2.5 wt % of Sn, from larger than 1.0 wt % to 15 wt % of Zn, and further comprises from a... | 10/24/2000 |
| 6103188 | High-conductivity copper microalloys obtained by conventional continuous or semi-continuous casting We provide a new copper microalloy with high-conductivity, excellent heat resistance and high strain strength, which can be obtained by conventional continuous or semi-continuous casting, which essentially consists of at least one element selected from th... | 08/15/2000 |
| 6099663 | Copper alloy and process for obtaining same A copper base alloy consisting essentially of tin in an amount from about 0.1 to about 1.5% by weight, phosphorous in an amount from about 0.01 to about 0.35% by weight, iron in an amount from about 0.01 to about 0.8% by weight, zinc in an amount from abo... | 08/08/2000 |
| 5997663 | Nickel-free copper alloy A nickel-free white or yellowish copper alloy having excellent corrosion resistance, with high degree of whiteness or yellowness, which is non-allergenic and therefore is suitable for use, for example, in elements, sliders, stoppers and the like for a sli... | 12/07/1999 |
| 5653827 | Brass alloys Reduced-lead yellow brass alloys are disclosed. The alloys comprise copper; zinc; an amount of bismuth effective to enhance castability of the alloys; and an amount of selenium effective to increase machinability of the alloy. Preferably, the alloys furth... | 08/05/1997 |
| 5637160 | Corrosion-resistant bismuth brass There is provided a machinable +ଲ brass containing bismuth and phosphorous. By maintaining the phosphorous content within a critical range, the alloy exhibits good elevated temperature tensile elongation in the temperature range of 100° C.-3... | 06/10/1997 |
| 5556446 | Machinable brass compositions Brass powder metallurgy compositions for use in manufacturing a brass part by powder metallurgy techniques. The compositions comprise from about 70-90% wt. copper, 10-30% wt. zinc, and from about 0.1-1.5% wt. graphite as an addition to improve the machina... | 09/17/1996 |
| 5507885 | Copper-based alloy A copper-based alloy, viz. a dezincification-resistant brass, excels in various properties such as resistance to dezincification, hot forgeability and machinability and, therefore, tolerates use particularly in the atmosphere of a corrosive aqueous soluti... | 04/16/1996 |
| 5445665 | Machinable brass compositions A powdered metallurgical composition comprising copper and zinc, which composition also includes a proportion of 0.1 to 1.5% by weight of graphite to improve the machinability of an article made from the composition.... | 08/29/1995 |
| 5330712 | Copper-bismuth alloys An alloy consisting essentially of about 0.1 to 7% bismuth, up to about 16% tin, up to about 25% zinc, up to about 27% nickel, about 0.1 to 1% mischmetal and the balance copper and incidental impurities.... | 07/19/1994 |
| 5250256 | High-tensile copper alloy for current conduction having superior flexibility A high-tensile copper alloy for current conduction and having superior flexibility is disclosed. The hightensile copper alloy, in a first embodiment, is consisting essentially of: from 2.0 to 4.0% by weight of Ni; from 0.4 to 1.0% by weight of Si; from 0.... | 10/05/1993 |
| 5124124 | High-tensile copper alloy for current conduction having superior flexibility A high-tensile copper alloy for current conduction and having superior flexibility is disclosed. The high-tensile copper alloy, in a first embodiment, is consisting essentially of: from 2.0 to 4.0% by weight of Ni; from 0.4 to 1.0% by weight of Si; from 0... | 06/23/1992 |
| 5102620 | Copper alloys with dispersed metal nitrides and method of manufacture Spray cast alloys having reduced porosity and increased ductility are provided as well as a process for the manufacture of the alloys. An effective amount of a reactive metal which reacts with the spray casting atmosphere but not with the desired alloy is... | 04/07/1992 |
| 5024814 | Copper alloy having excellent hot rollability and excellent adhesion strength of plated surface thereof when heated A copper alloy consists essentially by weight percent of 0.5 to 3% Ni, 0.5 to 2.5% Sn, 0.05 to 0.9% Si, 0.1 to 2% Zn, 0.025 to 0.25% Fe, and the balance of Cu and inevitable impurities. The inevitable impurities include C in an amount of not more than 10 ... | 06/18/1991 |
| 5021105 | Copper alloy for electronic instruments A copper alloy for electronic instruments is disclosed which comprises 2.0 to 7.0 wt. % of Sn, 1.0 to 6.0 wt. % in total amount of at least one kind of Ni, Co and Cr, o.1 to 2.0 wt. % of Si, and the remainder of Cu and unavoidable impurities, thereby furt... | 06/04/1991 |
| 4971758 | Copper-based alloy connector for electrical devices A copper-based alloy connector excellent in electrical conductivity, adherence of solder of the connector when bent, high-temperature creep strength, and migration resistance, consists essentially by weight percent of 0.5 to 3% Ni, 0.1 to 0.9% Sn, 0.08 to... | 11/20/1990 |
| 4935076 | Copper alloy for use as material of heat exchanger A copper alloy suitable for use as the material of a heat exchanger contains 1 to 4.5 wt % of Zn, 1.0 to 2.5 wt %, preferably 1.5 to 2.0 wt % of Sn, 0.005 to 0.05 wt %, preferably 0.01 to 0.04% of P, and the balance substantially Cu and inevitable impurit... | 06/19/1990 |
| 4879094 | Cu--Sn--Zn--Bi alloys An alloy for the manufacture of cast components, for example taps, water meters, pipe couplings and parts thereof, intended for use in potable water supply installations comprises 1.5 to 7 wt % bismuth, from 5 to 15 wt % zinc, from 1 to 12 wt % tin, the b... | 11/07/1989 |
| 4822560 | Copper alloy and method of manufacturing the same A copper alloy is disclosed which comprises 0.01 to 1.0 wt. % of Cr, 0.01 to 8 wt. % of Sn, 0.001 to 5 wt. % of at least one of 0.001 to 5 wt. % of Zn, 0.001 to 0.5 wt. % of Mn and 0.001 to 0.2 wt. % of Mg and the remainder of Cu, the content of O2 | 04/18/1989 |
| 4741394 | Radiator for motor cars In a radiator for motor cars wherein fins are fitted between vertical tubes through which the heat-exchanging medium flows to form a core and tube plates are provided at both ends of the tubes of said core to connect with a resinous tank, a concave groove... | 05/03/1988 |
| 4732732 | Migration resistant phosphor bronze alloy A phosphor bronze alloy excellent in migration resistance, which containing from 3.0 to 9.0% by weight of Sn, from 0.03 to 0.35% by weight of P, from 1.0 to 5.0% by weight of Zn, and the substantial balance of Cu and impurities. The phosphor bronze alloy ... | 03/22/1988 |
| 4656003 | Copper alloy and production of the same There is provided a copper alloy which comprises 1.0 to 3.5 wt. % of Ni, 0.2 to 0.9 wt. % of Si, 0.02 to 1.0 wt. % of Mn, 0.1 to 5.0 wt. % of Zn, 0.1 to 2.0 wt. % of Sn, and 0.001 to 0.01 wt. % of Mg, and 0.001 to 0.01 wt. % of one or more members selecte... | 04/07/1987 |
| 4644674 | Alloy for coins A coin, a coin blank or metal strip for the production of a coin or a coin blank having as its surface a copper based alloy containing between 15% and 30% (by wt) zinc, between 2% and 7% (by wt) tin and, optionally, between 2% and 7% (by wt) nickel. The a... | 02/24/1987 |
| 4627960 | Copper-based alloy A copper-based alloy for use in electrical and electronic devices, particularly as a material used for forming lead frames of semiconductor devices, which is less expensive than phosphor bronze while providing a mechanical strength and durability to repea... | 12/09/1986 |
| 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 |
| 4587097 | Homogeneous low melting temperature brazing filler metal for joining ferrous and non-ferrous alloys A metal alloy consisting essentially of about 4-16 atom percent manganese, 4-16 atom percent silicon, 0-16 atom percent tin, 0-20 atom percent zinc, 0-10 atom percent silver and about 0-10 atom percent indium, the balance being copper and incidental impur... | 05/06/1986 |
| 4452757 | Copper alloy for radiators Corrosion-resistant copper alloys for the manufacture of radiators are composed of, by weight, 25-40% zinc, 0.005-0.070% phosphorus, 0.05-1.0% each tin and aluminum, and the balance copper and inevitable impurities.... | 06/05/1984 |
