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Class Information
Number: 420/481
Name: Alloys or metallic compositions > Copper base > Zinc containing > Nickel containing
Description: Alloy, or metallic composition which additionally contains nickel.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8506730 Copper/zinc alloys having low levels of lead and good machinability Aug. 13, 2013
8425697 Tin-free lead-free free-cutting magnesium brass alloy Apr. 23, 2013
7910512 Production process of electrode catalyst for fuel cell Mar. 22, 2011
7736448 Nano icrystals copper material with super high strength and conductivity and method of preparing thereof Jun. 15, 2010
7628872 Lead-free free-cutting copper-antimony alloys Dec. 8, 2009
7461770 Copper-based brazing alloy and brazing process Dec. 9, 2008
7354489 Lead-free copper alloy and a method of manufacture Apr. 8, 2008
7056396 Copper/zinc alloys having low levels of lead and good machinability Jun. 6, 2006
6716541 Material for a metal strip Apr. 6, 2004
6632300 Copper alloy having improved stress relaxation resistance Oct. 14, 2003
6558617 Copper alloy for use in electric and electronic parts May. 6, 2003
6432556 Copper alloy with a golden visual appearance Aug. 13, 2002
6413330 Lead-free free-cutting copper alloys Jul. 2, 2002
6391163 Method of enhancing hardness of sputter deposited copper films May. 21, 2002
6210636 Cu-Ni-Zn-Pd alloys Apr. 3, 2001
6103188 High-conductivity copper microalloys obtained by conventional continuous or semi-continuous casting Aug. 15, 2000
5942056 Plumbing fixtures and fittings employing copper-bismuth casting alloys Aug. 24, 1999
5885376 Corrosion-resistant high-strength copper based alloy having excellent blankability Mar. 23, 1999
5846483 Selenized dairy Se-Ni-Sn-Zn-Cu metal Dec. 8, 1998
5833920 Copper alloy for electronic parts, lead-frame, semiconductor device and connector Nov. 10, 1998
5658401 Copper-zinc alloy Aug. 19, 1997
5507885 Copper-based alloy Apr. 16, 1996
5441696 Copper-nickel based alloy Aug. 15, 1995
5424030 Copper alloy for fine pattern lead frame Jun. 13, 1995
5288683 Wear-resistant copper alloys and synchronizer rings for automobiles comprising the same Feb. 22, 1994
5286444 Copper bearing alloy Feb. 15, 1994
5259898 Alloy for spectacle wire frames and electronic component parts Nov. 9, 1993
5246509 Copper base alloy superior in resistances to seizure, wear and corrosion suitable for use as material of sliding member Sep. 21, 1993
5242657 Lead-free corrosion resistant copper-nickel alloy Sep. 7, 1993
5064611 Process for producing copper alloy Nov. 12, 1991
5045411 Alloy compositions Sep. 3, 1991
5024814 Copper alloy having excellent hot rollability and excellent adhesion strength of plated surface thereof when heated Jun. 18, 1991
5019335 Gold colored metal alloy May. 28, 1991
5004581 Dispersion strengthened copper-base alloy for overlay Apr. 2, 1991
4990820 Corrosion resistant sockets for electric lamps Feb. 5, 1991
4971758 Copper-based alloy connector for electrical devices Nov. 20, 1990
4950451 Copper alloy for an electronic device and method of preparing the same Aug. 21, 1990
4914345 Corrosion resistant base for electric lamps Apr. 3, 1990
4886641 Electrical contact spring material made of copper base alloy of high strength and toughness with reduced anisotropy in characteristics Dec. 12, 1989
4687633 Lead material for ceramic package IC Aug. 18, 1987
4674566 Corrosion resistant modified Cu-Zn alloy for heat exchanger tubes Jun. 23, 1987
4659378 Solderable adhesive layer Apr. 21, 1987
4632806 Copper alloy having high resistance to oxidation for use in leads on semiconductor devices Dec. 30, 1986
4631171 Copper-zinc-manganese-nickel alloys Dec. 23, 1986
4612167 Copper-base alloys for leadframes Sep. 16, 1986
4591484 Lead materials for semiconductor devices May. 27, 1986
4430298 Copper alloys for electric and electronic devices and method for producing same Feb. 7, 1984
4366117 Copper alloy for use as lead material for semiconductor devices Dec. 28, 1982
4362579 High-strength-conductivity copper alloy Dec. 7, 1982
4345108 Case for a semiconductor component Aug. 17, 1982

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