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Class Information
Number: 420/494
Name: Alloys or metallic compositions > Copper base > Beryllium, magnesium, or alkaline earth metal containing
Description: Alloy, or metallic composition which additionally contains at least one of the metals beryllium, magnesium, calcium, strontium, or barium.

Patents under this class:

Patent Number Title Of Patent Date Issued
8658009 Thin film transistor having a barrier layer as a constituting layer and Cu-alloy sputtering target used for sputter film formation of the barrier layer Feb. 25, 2014
8029597 Use of magnesium-copper compositions for the evaporation of magnesium and magnesium dispensers Oct. 4, 2011
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
6716541 Material for a metal strip Apr. 6, 2004
6436545 Joint body of ceramic member and metal member and method of producing the same Aug. 20, 2002
6391163 Method of enhancing hardness of sputter deposited copper films May. 21, 2002
6307173 Weld gun arm casting Oct. 23, 2001
6197433 Rolled copper foil for flexible printed circuit and method of manufacturing the same Mar. 6, 2001
6190468 Metamorphic processing of alloys and products thereof Feb. 20, 2001
6077365 Beryllium-copper bonding material Jun. 20, 2000
5955176 Integrated suspension using a high strength conductive material Sep. 21, 1999
5851957 Oxide superconductor precursors Dec. 22, 1998
5667752 Copper alloy sheet for connectors and connectors formed of same Sep. 16, 1997
5415836 Antifouling structure and method May. 16, 1995
5354388 Production of beryllium-copper alloys and beryllium copper alloys produced thereby Oct. 11, 1994
5334346 Copper alloys for electrical and electronic parts Aug. 2, 1994
5257733 Process for thermodynamically treating a region joining two members and product thereof Nov. 2, 1993
5131958 Method of hot forming beryllium-copper alloy and hot formed product thereof Jul. 21, 1992
5058567 Flexible tube of endoscope and method of and apparatus for producing the same Oct. 22, 1991
5039478 Copper alloys having improved softening resistance and a method of manufacture thereof Aug. 13, 1991
5004520 Method of manufacturing film carrier Apr. 2, 1991
4944287 Flexible tube of endoscope Jul. 31, 1990
4935202 Electrically conductive spring materials Jun. 19, 1990
4931105 Process for heat treating beryllium copper Jun. 5, 1990
4859417 Copper-based metal alloy of improved type, particularly for the construction of electronic components Aug. 22, 1989
4853184 Contact material for vacuum interrupter Aug. 1, 1989
4777335 Contact forming material for a vacuum valve Oct. 11, 1988
4743427 High potent and high electroconductive copper alloy suitable for fin material of heat-exchanger May. 10, 1988
4732733 Copper-base alloys for leadframes Mar. 22, 1988
4727002 High strength copper alloy wire Feb. 23, 1988
4715910 Low cost connector alloy Dec. 29, 1987
4698198 Unified first wall-blanket structure for plasma device applications Oct. 6, 1987
4666667 High-strength, high-conductivity copper alloy May. 19, 1987
4666795 Clad material for ornamental use May. 19, 1987
4612166 Copper-silicon-tin alloys having improved cleanability Sep. 16, 1986
4599120 Processing of copper alloys Jul. 8, 1986
4594221 Multipurpose copper alloys with moderate conductivity and high strength Jun. 10, 1986
4591484 Lead materials for semiconductor devices May. 27, 1986
4575451 Contact material for vacuum circuit breaker Mar. 11, 1986
4559200 High strength and high conductivity copper alloy Dec. 17, 1985
4551187 Copper alloy Nov. 5, 1985
4400351 High thermal resistance, high electric conductivity copper base alloy Aug. 23, 1983
4343867 Superconducting wire with improved strain characteristics Aug. 10, 1982
4233067 Soft copper alloy conductors Nov. 11, 1980
4207096 Method of producing graphite-containing copper alloys Jun. 10, 1980
4088475 Addition of reactive elements in powder wire form to copper base alloys May. 9, 1978
4008081 Method of making vacuum interrupter contact materials Feb. 15, 1977

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