| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 420077000 | Four percent or more aluminum containing | 9 |
| 20090116991 | NOVEL Fe-Al ALLOY AND METHOD FOR PRODUCING THE SAME - The present invention aims to provide Fe—Al alloys having 12% by weight or less Al, which have excellent properties, such as workability, insulation properties, magnetic permeability, vibration-damping properties, high strength, etc. | 05-07-2009 |
| 20110091347 | STEEL PRODUCT FOR WELDING - A steel product for welding includes the following component: by mass %, C: 0.3% or less, Si: 0.5% or less, Mn: 0.3˜2%, P: 0.03% or less, S: 0.03% or less, Al: 0.3˜5%, O: 0.003˜0.01%, and N: 0.006% or less; wherein the balance is composed of Fe and inevitable impurities; wherein Al-containing oxides having a size of 0.005 to 0.05 μm are dispersed in steel at a ratio of 1×10 | 04-21-2011 |
| 420078000 | Over 2 percent silicon containing | 1 |
| 20160254082 | MAGNETIC BODY AND ELECTRONIC COMPONENT COMPRISING THE SAME | 09-01-2016 |
| 420079000 | Chromium containing | 5 |
| 20090297387 | LOW SPECIFIC GRAVITY AND HIGH STRENGTH STEEL SHEETS WITH EXCELLENT RIDGING RESISTIBILITY AND MANUFACTURING METHODS THEREOF - A low specific gravity and high strength steel sheet includes C of 0.2% to 0.8%, Mn of 2% to 10%, P of 0.02% or less, S of 0.015% or less, Al of 3% to 15%, and N of 0.01% or less. A ratio of Mn/Al is 0.4 to 1.0. Retained austenite in a structure is included in the range of 1% or more. The steel sheet further includes one or two or more elements selected from the group consisting of Si of 0.1% to 2.0%, Cr of 0.1% to 0.3%, Mo of 0.05% to 0.5%, Ni of 0.1% to 2.0%, Cu of 0.1% to 1.0%, B of 0.0005% to 0.003%, Ti of 0.01% to 0.2%, Zr of 0.005% to 0.2%, Nb of 0.005% to 0.2%, W of 0.1% to 1.0%, Sb of 0.005% to 0.2%, and Ca of 0.001% to 0.2%. | 12-03-2009 |
| 20100021339 | COMPONENTS MADE OF STEELS WITH AN ULTRAHIGH CARBON CONTENT AND WITH A REDUCED DENSITY AND HIGH SCALING RESISTANCE - UHC lightweight structural steel with improved scaling resistance, comprising the composition in % by weight C: 1 to 1.6, Al: 5 to 10, Cr: 0.5 to 3, Si: 0.1 to 2.8, the remainder iron and customary impurities accompanying steel, and a method for producing components hot-formed from this in air, wherein hot-forming temperatures of from 800 to 1050° C. are used, depending on the Si content. | 01-28-2010 |
| 20110318218 | LOW SPECIFIC GRAVITY STEEL FOR FORGING USE EXCELLENT IN MACHINEABILITY - Steel for forging having high strength and superior machinability due to controlled cooling immediately after shaping by hot forging followed by tempering and having a lower specific gravity than ordinary steel for forging use, the steel containing C: 0.05 to 0.50%, Si: 0.01 to 1.50%, Mn: 3.0 to 7.0%, P: 0.001 to 0.050%, S: 0.020 to 0.200%, Al: 3.0 to 6.0%, Cr: 0.01 to 1.00%, and N: 0.0040 to 0.0200% and having a balance of Fe and unavoidable impurities. | 12-29-2011 |
| 20160040273 | HIGH-STRENGTH LOW-SPECIFIC-GRAVITY STEEL SHEET HAVING SUPERIOR SPOT WELDABILITY - A steel sheet including, by mass %, C: more than 0.100% and 0.500% or less, Si: 0.0001% or more and less than 0.20%, Mn: more than 0.20% and 0.50% or less, Al: 3.0% or more and 10.0% or less, N: 0.0030% or more and 0.0100% or less, Ti: more than 0.100% and 1.000% or less, P: 0.00001% or more and 0.0200% or less, S: 0.00001% or more and 0.0100% or less, and a remainder including Fe and impurities, in which a sum of a C content and a Ti content satisfies 0.200| 02-11-2016 | |
| 20160138145 | Cold work tool steel with outstanding weldability - A cold work tool steel with average or above wear resistance, a hardness in excess of 60 HRc and a very good toughness but with considerably lower carbon contents leading to highly improved weldability is obtained by combining the presence of primary carbides (or alternatively nitrides and/or borides) with other strengthening mechanisms like precipitation hardening or even solid solution. Vanadium rich MC type carbides, modified with refractory metal additions, present the best compromise of hardness and fracture toughness for several applications, while for other applications harder carbides, such as Ti carbides or Ti mixed carbides (primarily with V, Mo and/or W) will be the preferred ones, alternatively using Zr and Hf mixed carbides. | 05-19-2016 |
| 420081000 | Zirconium, vanadium or titanium containing | 1 |
| 20180026171 | Thermoelectric Conversion Material | 01-25-2018 |
