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Browse by Category: Main > Material Science
Class Information
Number: 420/471
Name: Alloys or metallic compositions > Copper base > Tin containing > Aluminum containing
Description: Alloy, or metallic composition which additionally contains aluminum.










Patents under this class:

Patent Number Title Of Patent Date Issued
8568656 Environment-friendly manganese brass alloy and manufacturing method thereof Oct. 29, 2013
8435361 Copper-zinc alloy for a valve guide May. 7, 2013
8246764 Copper alloy sputtering target and semiconductor element wiring Aug. 21, 2012
8171886 Structure used in seawater, copper alloy wire or bar forming the structure, and method for manufacturing the copper alloy wire or bar May. 8, 2012
8097208 White copper-base alloy Jan. 17, 2012
7806996 Copper-based alloy, and cast ingot and liquid-contacting part each using the alloy Oct. 5, 2010
7776163 Lead-free free-cutting aluminum brass alloy and its manufacturing method Aug. 17, 2010
7740721 Copper alloy sputtering target process for producing the same and semiconductor element wiring Jun. 22, 2010
7736448 Nano icrystals copper material with super high strength and conductivity and method of preparing thereof Jun. 15, 2010
7695578 Bronze alloy, and ingot and liquid-contacting part using the alloy Apr. 13, 2010
7507304 Copper alloy sputtering target and semiconductor element wiring Mar. 24, 2009
7297215 Copper base alloy, and cast ingot and parts to be contacted with liquid Nov. 20, 2007
6149739 Lead-free copper alloy Nov. 21, 2000
5985055 Copper alloy and process for obtaining same Nov. 16, 1999
RE35624 Wires made of copper-based alloy compositions Oct. 7, 1997
5653827 Brass alloys Aug. 5, 1997
5490953 Semiconductor compound Feb. 13, 1996
5487867 Copper-bismuth casting alloys Jan. 30, 1996
5445687 Hot working material of corrosion resistant copper-based alloy Aug. 29, 1995
5334814 Electrode for spot welding Aug. 2, 1994
5330712 Copper-bismuth alloys Jul. 19, 1994
5236662 Wires made of copper-based alloy compositions Aug. 17, 1993
5102620 Copper alloys with dispersed metal nitrides and method of manufacture Apr. 7, 1992
5100617 Wires made of copper-based alloy compositions Mar. 31, 1992
5021105 Copper alloy for electronic instruments Jun. 4, 1991
4995924 Synchronizer ring in speed variator made of copper-base alloy Feb. 26, 1991
4990309 High strength copper-nickel-tin-zinc-aluminum alloy of excellent bending processability Feb. 5, 1991
4874439 Synchronizer ring in speed variator made of wear-resistant copper alloy having high strength and toughness Oct. 17, 1989
4851191 High strength and wear resistance copper alloys Jul. 25, 1989
4750029 Copper base lead material for leads of semiconductor devices Jun. 7, 1988
4687633 Lead material for ceramic package IC Aug. 18, 1987
4666667 High-strength, high-conductivity copper alloy May. 19, 1987
4632806 Copper alloy having high resistance to oxidation for use in leads on semiconductor devices Dec. 30, 1986
4623513 Ductile low temperature brazing alloy Nov. 18, 1986
4612167 Copper-base alloys for leadframes Sep. 16, 1986
4452757 Copper alloy for radiators Jun. 5, 1984
4436790 Gold-colored coin material Mar. 13, 1984
4417929 Special brass with dezincification corrosion resistance Nov. 29, 1983
4402906 Metallic material proof against attachment of marine organisms Sep. 6, 1983
4374085 Silver-tin-copper-palladium alloy and amalgam thereof Feb. 15, 1983
4169729 Corrosion resistant copper base alloys for heat exchanger tube Oct. 2, 1979
3979208 Ductile aluminum bronze alloy and article Sep. 7, 1976











 
 
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