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Class Information
Number: 420/94
Name: Alloys or metallic compositions > Ferrous (i.e., iron base) > Over 10 percent nickel containing
Description: Alloy or metallic composition which additionally contains more that 10 percent nickel.










Sub-classes under this class:

Class Number Class Name Patents
420/97 Chromium containing 60
420/95 Cobalt containing 74
420/96 Molybdenum containing 49
420/98 Over 1 percent silicon containing 22


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8328961 Iron-nickel alloy strip for the manufacture of support grids for the integrated circuits Dec. 11, 2012
8002911 Metallic dental prostheses and objects made of bulk-solidifying amorphhous alloys and method of making such articles Aug. 23, 2011
7488392 Surface on a stainless steel matrix Feb. 10, 2009
7431812 Surface oxidised nickel-iron metal anodes for aluminium production Oct. 7, 2008
7267794 Ductile medium-and high-density, non-toxic shot and other articles and method for producing the same Sep. 11, 2007
7226515 Fe--Ni based permalloy and method of producing the same and cast slab Jun. 5, 2007
7195680 Soft magnetic alloy for clock-making Mar. 27, 2007
7014721 Iron-nickel alloy material for shadow mask with excellent suitability for etching Mar. 21, 2006
6890480 Ductile medium- and high-density, non-toxic shot and other articles and method for producing the same May. 10, 2005
6767414 Maraging steel having high fatigue strength and maraging steel strip made of same Jul. 27, 2004
6656419 Fe-Ni based permalloy and method of producing the same and cast slab Dec. 2, 2003
6652991 Ductile NiAl intermetallic compositions Nov. 25, 2003
6632298 Casting slab for shadow mask, method for heat treatment thereof and material for shadow mask Oct. 14, 2003
6600259 Fe-Ni alloy with excellent magnetic properties for semi-tension mask, semi-tension mask of the alloy, and color picture tube using the mask Jul. 29, 2003
6592810 FE-NI ALLOY HAVING HIGH STRENGTH AND LOW THERMAL EXPANSION, A SHADOW MASK MADE OF THE ALLOY, A BRAUN TUBE WITH THE SHADOW MASK, A LEAD FRAME MADE OF THE ALLOY AND A SEMICONDUCTOR ELEMENT WITH Jul. 15, 2003
6572714 Fe-Ni alloy for tension mask and tension mask using it and color crt Jun. 3, 2003
6547893 Fe-Ni based material for shadow mask Apr. 15, 2003
6528012 Welded structure made of low thermal expansion coefficient alloy and welding material therefore Mar. 4, 2003
6508892 Fe-Ni alloy shadow mask blank with excellent etch perforation properties and method for manufacturing the same Jan. 21, 2003
6500281 Fe-Ni alloy material used for shadow mask having improved formability of through-holes by etching Dec. 31, 2002
6428633 Steel for welded structures and welding wire Aug. 6, 2002
6379477 Fe-Cr-Ni alloy for electron gun electrodes and Fe-Cr-Ni alloy sheet for electron gun electrodes Apr. 30, 2002
6372058 Semi-tension mask of low-expansion Fe-Ni alloy, and color picture tube using the mask Apr. 16, 2002
6344095 Low-thermal expansion cast steel with excellent machinability Feb. 5, 2002
6224824 Method of using alloy steel having superior corrosion resistance in corrosive environment containing molten salts containing alkali oxides May. 1, 2001
5997807 Thin plate made of an Fe-Ni alloy for electronic parts, shadow mask and cathode-ray tube with the shadow mask Dec. 7, 1999
5958331 Fe-Ni based alloy sheet having superior surface characteristic and superior etchability Sep. 28, 1999
5916380 Fe-Ni alloy for parts of electron-gun and blanked parts for electron-gun Jun. 29, 1999
5858125 Magnetoresistive materials Jan. 12, 1999
5783145 Iron-nickel alloy and cold-rolled strip with a cubic texture Jul. 21, 1998
5688471 High strength low thermal expansion alloy Nov. 18, 1997
5628841 Thin Fe-Ni alloy sheet for shadow mask May. 13, 1997
5620535 Alloy sheet for shadow mask Apr. 15, 1997
5605582 Alloy sheet having high etching performance Feb. 25, 1997
5605581 Thin Fe-Ni alloy sheet for shadow mask and method for manufacturing thereof Feb. 25, 1997
5562783 Alloy sheet for shadow mask Oct. 8, 1996
5476633 Ultrahigh-purity dimensionally stable INVAR 36 Dec. 19, 1995
5456771 Thin Fe-Ni alloy sheet for shadow mask Oct. 10, 1995
5391241 Fe-Ni alloy cold-rolled sheet excellent in cleanliness and etching pierceability Feb. 21, 1995
5348827 Plate material for shadow mask Sep. 20, 1994
5304346 Welding material for low coefficient of thermal expansion alloys Apr. 19, 1994
5266417 Low-temperature service nickel plate with excellent weld toughness Nov. 30, 1993
5264050 Fe-Ni based alloy Nov. 23, 1993
5234512 Fe-Ni alloy sheet for shadow mask, excellent in etching pierceability, preventing sticking during annealing, and inhibiting production of gases Aug. 10, 1993
5234513 Fe-Ni alloy sheet excellent in hot workability, adhesivity to plating layer and solderability, and method for manufacturing same Aug. 10, 1993
5209900 High-fineness shadow mask material and process for producing the same May. 11, 1993
4973357 Ultrasonic machining tool for machining orthodontic brackets Nov. 27, 1990
4906522 Compounds of nickel, iron and phosphorus Mar. 6, 1990
4904447 Low thermal expansion casting alloy having excellent machinability Feb. 27, 1990
4832908 Low thermal expansion cast alloy May. 23, 1989

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