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Class Information
Number: 420/500
Name: Alloys or metallic compositions > Copper base > Sulfur, selenium, or tellurium containing
Description: Alloy, or metallic composition which additionally contains at least one of the elements sulfur, selenium, or tellurium.

Patents under this class:

Patent Number Title Of Patent Date Issued
8216442 Ultrahigh-purity copper and process for producing the same Jul. 10, 2012
8105467 High strength sputtering target for forming phosphor film in electroluminescence element Jan. 31, 2012
7736448 Nano icrystals copper material with super high strength and conductivity and method of preparing thereof Jun. 15, 2010
7247406 Method for activating metal hydride material Jul. 24, 2007
7214644 Cross-coupling reactions May. 8, 2007
6858102 Copper-containing sputtering targets, and methods of forming copper-containing sputtering targets Feb. 22, 2005
6758920 Conductive integrated circuit metal alloy interconnections, electroplating anodes; metal alloys for use as a conductive interconnection in an integrated circuit; and physical vapor deposition Jul. 6, 2004
6569567 Method of activating metal hydride material and electrode May. 27, 2003
6197433 Rolled copper foil for flexible printed circuit and method of manufacturing the same Mar. 6, 2001
5817195 Silver colored alloy with low percentage of nickel and copper Oct. 6, 1998
5490953 Semiconductor compound Feb. 13, 1996
5137685 Machinable copper alloys having reduced lead content Aug. 11, 1992
5089316 Plastics printing material and image fixing method for electrostatic printing with use of same Feb. 18, 1992
5077005 High-conductivity copper alloys with excellent workability and heat resistance Dec. 31, 1991
5032358 Resistance welding electrode of chalcogene bearing copper alloy Jul. 16, 1991
5004520 Method of manufacturing film carrier Apr. 2, 1991
4997624 Contact material for vacuum switches and process for manufacturing same Mar. 5, 1991
4853184 Contact material for vacuum interrupter Aug. 1, 1989
4792369 Copper wires used for transmitting sounds or images Dec. 20, 1988
4734254 Enhanced machining anneal resistant copper alloy Mar. 29, 1988
4721539 Large single crystal quaternary alloys of IB-IIIA-SE.sub.2 and methods of synthesizing the same Jan. 26, 1988
4717436 Wire for bonding a semiconductor device Jan. 5, 1988
4710349 Highly conductive copper-based alloy Dec. 1, 1987
4704253 Copper alloy for a radiator fin Nov. 3, 1987
4650650 Copper-based alloy with improved conductivity and softening properties Mar. 17, 1987
4591484 Lead materials for semiconductor devices May. 27, 1986
4575451 Contact material for vacuum circuit breaker Mar. 11, 1986
4517033 Contact material for vacuum circuit breaker May. 14, 1985
4492602 Copper base alloys for automotive radiator fins, electrical connectors and commutators Jan. 8, 1985
4474614 Impurity segregation in copper by controlled cooling treatment Oct. 2, 1984
4400351 High thermal resistance, high electric conductivity copper base alloy Aug. 23, 1983
4087294 Lithium doped mercury cadmium telluride May. 2, 1978
4076572 Crystal growth and anneal of lead tin telluride by recrystallization from a heterogeneous system Feb. 28, 1978
4029520 Thermoelectric generators that incorporate self-segmenting thermoelectric legs Jun. 14, 1977
4014689 Method of fabricating a contact material for high-power vacuum circuit breakers Mar. 29, 1977
3957693 Process for producing selenium homogeneously doped with tellurium May. 18, 1976

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