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| Number | Title | Issue Date |
| 8083990 | Iron-based alloy having shape memory properties and superelasticity and its production method An iron-based alloy having shape memory properties and superelasticity, which has a composition comprising 25-35% by mass of Ni, 13-25% by mass of Co, 2-8% by mass of Al, and 1-20% by mass in total of at least one selected from the group consisting of 1-5% by mass o... | 12/27/2011 |
| 7195680 | Soft magnetic alloy for clock-making The invention relates to a soft magnetic alloy with the following composition in wt. %: 28%≦Ni≦34%, 0%≦Co≦4%, 0%≦Cu≦4%, 1%≦Cr, 0%≦Mo≦8%, 0%≦Nb≦1%, 0%≦Mn≦2%, 0%≦V≦5%, 0%≦W≦5%, 0%≦Si≦4%, 0%≦Al≦4%, 0%≦C≦0.4%, optionally one... | 03/27/2007 |
| 6846368 | Casting steel having high strength and low thermal expansion The present invention provides a cast steel for ring-shaped components that has a low average coefficient of thermal expansion in a temperature range of 20° C. to 500° C. and high strength and good oxidation resistance at 500° C., which are required for ring-shap... | 01/25/2005 |
| 6824625 | Magnetostriction control alloy sheet, a part of a braun tube, and a manufacturing method for a magnetostriction control alloy sheet The invention relates to a magnetostriction control alloy sheet advantageously used as a high resolution shadow mask having a low coefficient of thermal expansion, superior magnetic properties and a high Young's modulus after a blackening process, a manufacturing pr... | 11/30/2004 |
| 6776855 | Maraging steel excellent in fatigue characteristics and method for producing the same The present invention provides a maraging steel excellent in fatigue characteristics and a process for the production thereof. A maraging steel of the first embodiment of the present invention has a chemical composition consisting essentially of, in % by weig... | 08/17/2004 |
| 6767414 | Maraging steel having high fatigue strength and maraging steel strip made of same There is provided inexpensive maraging steel having high fatigue strength and maraging steel strip formed by use of the same. The maraging steel having high fatigue strength, consisting essentially, by mass, of not more than 0.008% C, from 0 inclusive but not more t... | 07/27/2004 |
| 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 LEAD FRAME Disclosed is an Fe--Ni alloy consisting of, by mass, 30 to 50% of Ni (or 27 to 47% Ni and not more than 22% Co), 0.005 to 0.1% of Nb, less than 0.01% of C, 0.002 to 0.02% of N, and the balance of Fe and inevitable impurities, wherein the equation "0.00001... | 07/15/2003 |
| 6561258 | Mold steel A maraging steel for use as a mold steel is disclosed. In general, the use of maraging steels in molds is limited by the fact that the martensitic microstructure is not stable at temperatures above 480° C. The precipitate hardening maraging type steel ac... | 05/13/2003 |
| 6547893 | Fe-Ni based material for shadow mask It is a Fe--Ni based shadow mask material of Fe--Ni alloy or Fe--Ni--Co alloy used as a material for a color television cathode tube or the like, and relates to a material wherein the material has a texture that an X-ray intensity ratio Ir of cubic orient... | 04/15/2003 |
| 6528012 | Welded structure made of low thermal expansion coefficient alloy and welding material therefore In a welded structure and welded pipe, having members joined to each other by welding wherein, at least one of the members is formed of Fe--Ni-base low thermal expansion coefficient alloy, there is provided a welded structure and welded pipe having a weld... | 03/04/2003 |
| 6355212 | Alloy for corrosion-resistant coatings or surface coatings The invention is directed to anti-corrosive alloys and relates in particular to an alloy containing cobalt, chromium, aluminum, yttrium, silicon, a metal from the second main group, together with the corresponding oxide, in the following proportions: chro... | 03/12/2002 |
| 6344095 | Low-thermal expansion cast steel with excellent machinability A low-thermal expansion cast steel having an average linear thermal expansion coefficient of less than 4.0×10-6 /° C. in a range of room temperature to 100° C. and excellent machinability has a chemical composition (by mass) comprising 0.4-0... | 02/05/2002 |
| 6221183 | High-strength and low-thermal-expansion alloy, wire of the alloy and method of manufacturing the alloy wire A high-strength low-thermal-expansion alloy consisting of, by weight, 0.06 to 0.50% C, 25 to 65% in total of one or both of 65% or less Co and less than 30% Ni, and balance of Fe as a main component, other optional elements and unavoidable impurities, and... | 04/24/2001 |
| 5866066 | Age hardenable alloy with a unique combination of very high strength and good toughness An age hardenable martensitic steel alloy having a unique combination of very high strength and good toughness consists essentially of, in weight percent, about ______________________________________ C 0.21-0.34 Mn ... | 02/02/1999 |
| 5858125 | Magnetoresistive materials A magnetoresistive material of the present invention has a structure in which many clusters are surrounded by a crystal phase of Cu and/or Ag, where each cluster has a grain size of 20 nm or less and composed of an amorphous phase containing at least one ... | 01/12/1999 |
| 5841348 | Amorphous magnetostrictive alloy and an electronic article surveillance system employing same A resonator for use in a marker, with a bias element which produces a bias field, in a magnetomechanical electronic article surveillance system is composed of an amorphous magnetostrictive alloy containing iron, cobalt, nickel, silicon and boron in quanti... | 11/24/1998 |
| 5792286 | High-strength thin plate of iron-nickel-cobalt alloy excellent in corrosion resisitance, repeated bending behavior and etchability, and production thereof A high-strength thin plate, such as for IC lead frames, of an iron-nickel-cobalt alloy which is able to withstand repeated bending and is corrosion resistance and etchable, the alloy containing 27 to 30 wt. % N:, 5 to 18 wt. % Co, 0.10 to 3.0 wt. % Mn, 0.... | 08/11/1998 |
| 5783145 | Iron-nickel alloy and cold-rolled strip with a cubic texture An iron-nickel alloy, the chemical composition of which includes by weight: 30%ࣘNi+Coࣘ85%; 0%ࣘCo+Cu+Mnࣘ10%; 0%ࣘMo+W+Crࣘ4%; 0%ࣘV+Siࣘ2%; 0%ࣘNb+Taࣘ1%; 0.003%ࣘCࣘ0.05% 0.003%ࣘTiࣘ0.15%; 0.003%ࣘTi+Zr+Hfࣘ0.15%; 0.001% | 07/21/1998 |
| 5688471 | High strength low thermal expansion alloy The alloy of the invention provides a low coefficient of thermal expansion alloy having a CTE of about 4.9×10-6 m/m/°C. or less at 204° C. and a relatively high strength. The alloy contains about 40.5 to about 48 nickel, about 2 to about 3.7... | 11/18/1997 |
| 5620535 | Alloy sheet for shadow mask An alloy sheet for making a shadow mask consists essentially of 34 to 38 wt. % Ni, 0.07 wt. % or less Si, 0.002 wt. % or less B, 0.002 wt. % or less O, less than 0.002 wt. % N and the balance being Fe and inevitable impurities; said alloy sheet after anne... | 04/15/1997 |
| 5605582 | Alloy sheet having high etching performance An alloy sheet having a pierced hole face and providing a desirable etching performance, comprising {331}, {210}, and {211} planes on the surface; the gathering degree of the {311} plane being 14% or less, the gathering degree of the {210} plane being 14%... | 02/25/1997 |
| 5482531 | Titanium-free, nickel-containing maraging steel die block article and method of manufacture A powder-metallurgy-produced, essentially titanium-free, nickel-containing maraging steel article such as for use in the manufacture of die casting die components and other hot work tooling components. The article preferably contains an intentional additi... | 01/09/1996 |
| 5453138 | Alloy sheet An alloy sheet containing Fe, Ni and Cr has an average austenite grain size of 15 to 45 μm and a degree of mixed grain for austenite grain size of 4.5 to 50%; the alloy sheet has a gathering degree of the {331} plane on a surface of the alloy sheet of 8 ... | 09/26/1995 |
| 5393488 | High strength, high fatigue structural steel A duplex strengthened structural steel that is particularly suitable for demanding applications which require both high yield strength and fatigue properties is provided. The preferred steel alloys of this invention are characterized by both the presence ... | 02/28/1995 |
| 5304346 | Welding material for low coefficient of thermal expansion alloys The invention provides a welding material for welding iron containing low CTE alloys. The filler metal contains 25-55% nickel, 0-30% cobalt, 0.05-0.5% carbon, 0.25-5% niobium and balance iron with incidental impurities. The welding material also is operab... | 04/19/1994 |
| 5283032 | Controlled thermal expansion alloy and article made therefrom A precipitation strengthenable, nickel-cobalt-iron base alloy and articles made therefrom are disclosed. The alloy contains controlled amounts of silicon, nickel, cobalt, iron, chromium, niobium, titanium, and aluminum which are critically balanced to pro... | 02/01/1994 |
| 5268044 | High strength, high fracture toughness alloy A high strength, high fracture toughness steel alloy consisting essentially of, in weight percent, about ______________________________________ C 0.2-0.33 Mn 0.20 max. Si 0.1 max. P 0.008 max. S 0... | 12/07/1993 |
| 5264052 | Fe-Ni alloy and method for producing the same In composition of Fe-Ni alloy preferably used for lead frames in production of IC, specified amount of Be is added to the basic composition for increase in mechanical strength whilst maintaining the low thermal expansion characteristic of the conventional... | 11/23/1993 |
| 5246511 | High-strength lead frame material and method of producing same A high-strength lead frame material consists, by weight, of 0.5 to 22% Co, 22 to 32.5% Ni, not more than 1.0% Mn, not more than 0.5% Si, at least one kind of 0.1 to 3.0% in total selected from the group consisting of Nb, Ti, Zr, Mo, V, W and Be, and the b... | 09/21/1993 |
| 5173253 | Low expansion cast iron A cast iron having an austenitic matrix and consisting essentially of from 1% up to 3.5% carbon, up to 1.5% silicon, from 32% to 39.5% nickel, from 1% to less than 4% cobalt, up to 41% of the combined total of nickel plus cobalt and the balance substantia... | 12/22/1992 |
| 5156922 | Acicular magnetic iron based alloy particles for magnetic recording and method of producing the same Disclosed herein are acicular magnetic iron based alloy particles for magnetic recording, containing 1.5 to 10 mol % of B based on Fe (calculated as B) and 1.5 to 10 mol % of Co based on Fe (calculated as Co) in the vicinity of the surfaces of said partic... | 10/20/1992 |
| 5147470 | High strength lead frame material and method of producing the same A high strength lead frame material consists essentially, by weight, of 0.5 to 22% Co, 22 to 32.5% Ni, not more than 1.0% Mn and not more than 0.5% Si and the balance Fe and incidental impurities. The contents of Ni and Co are selected so that the Ni cont... | 09/15/1992 |
| 5087415 | High strength, high fracture toughness structural alloy A high strength, high fracture toughness structural steel alloy consisting essentially of, in weight percent, about ______________________________________ C 0.2-0.33 Cr 2-4 Ni 10.5-15 Mo 0.75-1.75 ... | 02/11/1992 |
| 5084111 | Fe-Ni alloy and method for treating ingot the same In composition of Fe-Ni alloy preferably used for lead frames in production of IC, specified amount of Be is added to the basic composition for increase in mechanical strength while maintaining the low thermal expansion characteristic of the conventional ... | 01/28/1992 |
| 5049354 | Low thermal expansion cast iron This invention is directed to a cast iron having a graphite structure in an austenitic iron matrix and consisting essentially of, in weight %, at least about 1.0% and not more than about 3.5% of carbon, not more than about 1.0% of silicon, at least about ... | 09/17/1991 |
| 5030299 | Low expansion cast iron lapping tool A lapping tool with a flatness in the range below 20 μm which is made of at least cast iron having an austenitic matrix and consisting essentially of from 1% up to 3.5% carbon, up to 1.5% silicon, from 32% to 39.5% nickel, from 1% to less than 4% cobalt,... | 07/09/1991 |
| 5028396 | Apparatus formed of high silicon chromium/nickel in steel in the manufacture of sulpheric acid Apparatus for the manufacture of sulphuric acid comprising at least one gas-concentrated sulphuric acid contacting unit and a sulphuric acid heat exchanger. The contacting unit and/or the heat exchanger is formed of high silicon content austenitic steel.... | 07/02/1991 |
| 5026435 | High strength lead frame material and method of producing the same A high strength lead frame material consists, by weight, of 0.5 to 22% Co, 22 to 32.5% Ni, not more than 1.0% Mn and not more than 0.5% Si and the balance Fe and incidental impurities. The contents of Ni and Co are selected so that the Ni content is 27 to... | 06/25/1991 |
| 4904447 | Low thermal expansion casting alloy having excellent machinability A low thermal expansion casting alloy which is excellent in machinability, has a reduced thermal expansion coefficient and is suited for use in applications such as precision machine parts. According to a first aspect of the invention, the alloy comprises... | 02/27/1990 |
| 4853298 | Thermally stable super invar and its named article A thermally stable Super Invar has a substantially suppressed martensitic transformation inception point as well as an average coefficient of thermal expansion substantially lower than Invar. The composition in weight percent consists essentially of and t... | 08/01/1989 |
