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Class Information
Number: 420/587
Name: Alloys or metallic compositions > Containing over 50 per cent metal but no base metal > Copper containing
Description: Alloy, or metallic composition containing copper in an amount which does not exceed 50 percent by weight.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
8557015 Cr-Cu alloy, method for producing the same, heat-release plate for semiconductor, and heat-release component for semiconductor Oct. 15, 2013
8512630 Pulverulent intermetallic materials for the reversible storage of hydrogen Aug. 20, 2013
8298405 Apparatus and method for resuscitating and revitalizing hydrocarbon fuels Oct. 30, 2012
8147751 Silver-white copper alloy and process for producing the same Apr. 3, 2012
7988908 Filler metal alloy compositions Aug. 2, 2011
7985374 Cadmium-free silver brazing filler metal Jul. 26, 2011
7976776 Mercury dispensing compositions and manufacturing process thereof Jul. 12, 2011
7955448 Alloy for heat dissipation of semiconductor device and semiconductor module, and method of manufacturing alloy Jun. 7, 2011
7674428 Mercury dispensing compositions and manufacturing process thereof Mar. 9, 2010
7662740 Platinum-chromium-copper/nickel fuel cell catalyst Feb. 16, 2010
7507305 Wear-resistant copper-based alloy Mar. 24, 2009
7422994 Platinum-copper-tungsten fuel cell catalyst Sep. 9, 2008
6929726 Sputtering target, Al interconnection film, and electronic component Aug. 16, 2005
6914032 Method of producing tungsten-copper based composite powder and sintered alloys for heat-sink using said composite powder Jul. 5, 2005
6863746 White gold compositions without nickel and palladium Mar. 8, 2005
6835252 Gold colored alloy used for dentistry and jewelry Dec. 28, 2004
6736947 Sputtering target, A1 interconnection film, and electronic component May. 18, 2004
6613275 Non-precious dental alloy Sep. 2, 2003
6605371 Brazing alloy for stainless steel, structure braze-assembled with the brazing alloy, and brazing material for stainless steel Aug. 12, 2003
6350408 Alloy of AuZn AuCu or ZnCu Feb. 26, 2002
6329074 Copper foil for printed wiring board having excellent chemical resistance and heat resistance Dec. 11, 2001
6299835 Cadmium-free silver alloy as low-melting brazing filler material Oct. 9, 2001
6210636 Cu-Ni-Zn-Pd alloys Apr. 3, 2001
6086683 Low-melting alloy and cream solder using a powder of the alloy Jul. 11, 2000
6074604 Brazing material for stainless steel Jun. 13, 2000
6059901 Bismuthized Cu-Ni-Mn-Zn alloy May. 9, 2000
5962156 Nickel-metal hydride storage battery and alloy for configuring negative electrode of the same Oct. 5, 1999
5945066 Zinc-copper based alloy and castings made therefrom Aug. 31, 1999
5851690 Hydrogen absorbing alloys Dec. 22, 1998
5843243 Wear-resistant copper-based alloy Dec. 1, 1998
5833774 High strength silver palladium alloy Nov. 10, 1998
5807468 Anode electrolysis electrode material using precious metal-based amorphous alloy suitable for plastic processing and applicable to a bulk member Sep. 15, 1998
5738953 Alkaline metal oxide/metal hydride battery Apr. 14, 1998
5714117 Air melting of Cu-Cr alloys Feb. 3, 1998
5658401 Copper-zinc alloy Aug. 19, 1997
5637160 Corrosion-resistant bismuth brass Jun. 10, 1997
5618359 Metallic glass alloys of Zr, Ti, Cu and Ni Apr. 8, 1997
5532076 Hydrogen storage alloy and electrode therefrom Jul. 2, 1996
5531962 Cadmium-free silver alloy brazing solder, method of using said solder, and metal articles brazed with said solder Jul. 2, 1996
5514334 Fine lead alloy wire for forming bump electrodes May. 7, 1996
5489417 Spray cast copper-manganese-zirconium alloys having reduced porosity Feb. 6, 1996
5486225 Process for producing an alloy Jan. 23, 1996
5484569 Silver palladium alloy Jan. 16, 1996
5441696 Copper-nickel based alloy Aug. 15, 1995
5409663 Tarnish resistant gold colored alloy Apr. 25, 1995
5393723 Catalyst for improving the combustion and operational qualities of hydrocarbon fuels Feb. 28, 1995
5384090 Fine wire for forming bump electrodes using a wire bonder Jan. 24, 1995
5384089 Yellow karat gold casting alloys Jan. 24, 1995
5368814 Lead free, tin-bismuth solder alloys Nov. 29, 1994
5341981 Use of a cadmium-free silver alloy as brazing solder (III) Aug. 30, 1994

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