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Class Information
Number: 420/495
Name: Alloys or metallic compositions > Copper base > Other refractory metal containing
Description: Alloy, or metallic composition which additionally contains at least one of the metals vanadium, chromium, niobium, molybdenum, tantalum, or tungsten.

Patents under this class:

Patent Number Title Of Patent Date Issued
7955448 Alloy for heat dissipation of semiconductor device and semiconductor module, and method of manufacturing alloy Jun. 7, 2011
7736448 Nano icrystals copper material with super high strength and conductivity and method of preparing thereof Jun. 15, 2010
7186370 Copper-base alloy and its use Mar. 6, 2007
6914032 Method of producing tungsten-copper based composite powder and sintered alloys for heat-sink using said composite powder Jul. 5, 2005
6797079 Physical vapor deposition target Sep. 28, 2004
6645352 Optical data storage disk Nov. 11, 2003
6436545 Joint body of ceramic member and metal member and method of producing the same Aug. 20, 2002
6093499 Copper alloy foils Jul. 25, 2000
6037067 High temperature abrasion resistant copper alloy Mar. 14, 2000
5911949 Abrasion resistant copper alloy Jun. 15, 1999
5853083 Contact material for a vacuum circuit breaker and a method for manufacturing the same Dec. 29, 1998
5714117 Air melting of Cu-Cr alloys Feb. 3, 1998
5705125 Wire for electric railways Jan. 6, 1998
5518519 Sintered contact component May. 21, 1996
5480472 Method for forming an electrical contact material Jan. 2, 1996
5445686 Fe-Cu alloy sheet having an alloy structure of high uniformity Aug. 29, 1995
5246512 Contact for a vacuum interrupter Sep. 21, 1993
5188799 Wear-resistant copper-base alloy Feb. 23, 1993
5149499 Cooper-Fe-P-Nb alloys for electrical and electronic parts and its manufacturing process Sep. 22, 1992
5085712 Iron/copper/chromium alloy material for high-strength lead frame or pin grid array Feb. 4, 1992
5045281 Contact forming material for a vacuum interrupter Sep. 3, 1991
5039478 Copper alloys having improved softening resistance and a method of manufacture thereof Aug. 13, 1991
4994235 Wear-resistance aluminum bronze alloy Feb. 19, 1991
4880482 Highly corrosion-resistant amorphous alloy Nov. 14, 1989
4869758 Iron/copper/chromium alloy material for high-strength lead frame or pin grid array Sep. 26, 1989
4865645 Nuclear radiation metallic absorber Sep. 12, 1989
4859417 Copper-based metal alloy of improved type, particularly for the construction of electronic components Aug. 22, 1989
4818283 Dispersion hardened copper alloys and production process therefore Apr. 4, 1989
4810468 Copper-chromium-titanium-silicon-alloy Mar. 7, 1989
4784829 Contact material for vacuum circuit breaker Nov. 15, 1988
4777335 Contact forming material for a vacuum valve Oct. 11, 1988
4749548 Copper alloy lead material for use in semiconductor device Jun. 7, 1988
4710349 Highly conductive copper-based alloy Dec. 1, 1987
4631237 Wire electrode for spark-eroding systems Dec. 23, 1986
4626282 Contact material for vacuum circuit breaker Dec. 2, 1986
4623513 Ductile low temperature brazing alloy Nov. 18, 1986
4606889 Copper-titanium-beryllium alloy Aug. 19, 1986
4600448 Copper-tantalum alloy Jul. 15, 1986
4575451 Contact material for vacuum circuit breaker Mar. 11, 1986
4559200 High strength and high conductivity copper alloy Dec. 17, 1985
4537745 Method of producing copper-chromium fusion alloys as contact material for vacuum power switches Aug. 27, 1985
4532703 Method of preparing composite superconducting wire Aug. 6, 1985
4517033 Contact material for vacuum circuit breaker May. 14, 1985
4378330 Ductile alloy and process for preparing composite superconducting wire Mar. 29, 1983
4347077 Process for producing magnesium alloys Aug. 31, 1982
4224066 Copper base alloy and process Sep. 23, 1980
4207096 Method of producing graphite-containing copper alloys Jun. 10, 1980
4198248 High conductivity and softening resistant copper base alloys and method therefor Apr. 15, 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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