| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 148527000 |
With metal next to or bonded to metal
| 111 |
| 148537000 |
With coating step
| 23 |
| 148522000 |
With casting or solidifying from melt
| 17 |
| 148518000 |
With electrocoating (e.g., electroplating, anodizing, sputtering, etc.)
| 16 |
| 148519000 |
Pipe or tube
| 16 |
| 148525000 |
Utilizing wave energy (e.g., laser, electromagnetic wave energy, etc.), plasma or electron arc or beam
| 9 |
| 148526000 |
Electric heating with work as electrical conductor (e.g., alternating current, induction, etc.) | 4 |
| 20100139816 | COLD ROLLED AND CONTINUOUSLY ANNEALED HIGH STRENGTH STEEL STRIP AND METHOD FOR PRODUCING SAID STEEL - Cold rolled and continuously annealed high strength steel strip including (in wt %): 0.04-0.30% C, 1.0-3.5% Mn, 0-1.0% Si, 0-2.0% Al, 0-1.0% Cr, 0-0.02% P, 0-0.01% S, 0-0.25% V, 0-0.1% Nb, 0-0.20% Ti, 0-0.015% N, 0-0.010% B, unavoidable impurities, balance iron, provided with a hot dip galvanized or galvannealed zinc alloy coating layer, wherein the zinc alloy is 0.3-4.0% Mg and 0.05-6.0% Al; optionally at most 0.2% of one or more additional elements; unavoidable impurities; the remainder being zinc, and method for producing it. | 06-10-2010 |
| 20100307643 | METHOD FOR REDUCING STRESS IN A CONDUIT BRACE ASSEMBLY - The present invention relates to a method for reducing stress in a conduit brace assembly that includes the steps of forming a connection joint ( | 12-09-2010 |
| 20110011499 | METHOD AND DEVICE FOR HARDENING PROFILES - The invention relates to a method for producing hardened profiles, in particular hardened open profiles, wherein the component is at least partly heated to above the austenitizing temperature of the base material and after heating the component is cooled at a rate above the critical hardening rate, the energy necessary for the heating being introduced at least partly by induction, wherein free edges are provided in the component to adjust a temperature or hardness gradient over the cross section of the component, the size, type and extension of the edges being set for a desired degree of hardness and/or hardness gradient. | 01-20-2011 |
| 20120012232 | METHOD AND APPARATUS OF FRICTION WELDING TO INCREASE TENSILE STRENGTH OF WELDED WORKPIECE - A friction welding method includes a step of friction welding a first workpiece and a second workpiece together by pressing the first workpiece against the second workpiece relatively while rotating the two workpieces relatively, and a step of annealing the friction welded workpiece at a position adjacent to a welded portion thereof with high frequency induction heating. A friction welding apparatus is provided for friction welding a first workpiece and a second workpiece together by pressing the first workpiece against the second workpiece relatively while rotating the two workpieces relatively. The friction welding apparatus includes a high frequency induction heater for annealing the friction welded workpiece at a position adjacent to a welded portion thereof with high frequency induction heating. | 01-19-2012 |
| 148517000 |
Subambient temperature | 1 |
| 20090236016 | METHOD FOR MANUFACTURING GLASS MOLDING DIE - A method for manufacturing a glass molding die includes forming a substrate by hardening a steel material containing 0.3 wt % or more and 2.7 wt % or less of carbon and 13 wt % or less of chromium, and further containing at least one additive selected from 0.5 wt % or more and 3 wt % or less of molybdenum, 0.1 wt % or more and 5 wt % or less of vanadium, and 1 wt % or more and 7 wt % or less of tungsten, and then tempering the steel material at a temperature of 400° C. or higher and 650° C. or lower, forming a surface coating layer composed of an amorphous Ni—P alloy on the surface of the substrate, and heating the surface coating layer thereby rendering the surface coating layer an eutectic structure composed of Ni and Ni | 09-24-2009 |
| Entries |
| Document | Title | Date |
|---|
| 20080295923 | Carbon Steel Sheet Superior in Formability and Manufacturing Method Thereof - A carbon steel sheet having high formability due to a microscopic and uniform carbide distribution and having a good characteristic of final heat treatment, and a manufacturing method thereof. The carbon steel sheet having excellent formability, includes, in wt %, C at 0.2-0.5%, Mn at 0.1-1.2%, Si at less than or equal to 0.4%, Cr at less than or equal to 0.5%, Al at 0.01-0.1%, S at less than or equal to 0.012%, Ti at less than or equal to 0.5×48/14×[N]% when the condition of B(atomic %)/N(atomic %)>1 is satisfied or by 0.5×48/14×[N]% to 0.03% when the condition of B and N is not satisfied, B at 0.0005-0.0080%, N at less than or equal to 0.006%, Fe, and extra inevitable elements; an average size of carbide is less than or equal to 1 μm; and an average grain size of ferrite is less than or equal to 5 μm. | 12-04-2008 |
| 20120097296 | METHOD FOR MODIFYING THE CRYSTALLINE STRUCTURE OF A COPPER ELEMENT - A method for modifying crystalline structure of a copper element with a planar surface, including: a) producing a copper standard having large grains, wherein the standard includes a planar surface, b) reducing roughness of the planar surfaces to a roughness of less than 1 nm, c) cleaning the planar surfaces, d) bringing the two planar surfaces into contact, and e) annealing. | 04-26-2012 |
| 20100018614 | Liquid crystal display device and manufacturing method therefor - The present invention includes a liquid crystal display device having an oxide film having high adhesiveness to a substrate to thereby prevent oxidation of a wiring material or the like, and includes, an electrode or a terminal electrode having high conductivity, and a manufacturing method therefor. Consequently, in the present invention, a liquid crystal display device has an electrode terminal of a TFT substrate, wherein the electrode is formed on an insulator and is comprised of a conductive layer mainly consisting of copper and an oxide covering an outer part, further the oxide is a layered structure of transparent electrodes, the layered portion having ohmic contact, and the oxide mainly consists of manganese oxide. | 01-28-2010 |
| 20090000703 | Ferritic stainless steel sheet superior in shapeability and method of production of the same - The present invention provides a ferritic stainless steel sheet superior in shapeability containing, by wt %, C: 0.001 to 0.010%, Si: 0.01 to 1.0%, Mn: 0.01 to 1.0%, P: 0.01 to 0.04%, Cr: 10 to 20%, N: 0.001 to 0.020%, Nb: 0.3 to 1.0%, and Mo: 0.5 to 2.0%, wherein the total precipitates are, by wt %, 0.05 to 0.60%. A method of production of a ferritic stainless steel sheet superior in shapeability comprising producing a cold rolling material in the production process so that the Nb-based precipitates become, by vol %, 0.15% to 0.6% and have a diameter of 0.1 μm to 1 μm and/or so that the recrystallized grain size becomes 1 μm to 40 μm and the recrystallization rate becomes 10 to 90%, then cold rolling and annealing it at 1010 to 1080° C. | 01-01-2009 |
| 20080202640 | Manufacturing method of rocker arm bearing apparatus - Quenching heat treatment is performed on a whole rocker arm bearing assembly in which shaft ends of a supporting shaft is fixed to inner peripheral edges of shaft end insertion holes of a pair of opposite sidewalls, and by the outer ring is rotatably supported on a raceway portion of an shaft intermediate portion of the supporting shaft through a plurality of rolling elements or directly, thereby manufacturing a rocker arm bearing apparatus. | 08-28-2008 |
| 20100065158 | SOLUTION HEAT TREATMENT AND OVERAGE HEAT TREATMENT FOR TITANIUM COMPONENTS - A method of fabricating a Ti-6Al-4V titanium alloy component including solution heat treating a forged Ti-6Al-4V titanium alloy component at a temperature within the alpha+beta two-phase field for the material of the component for a predetermined period of time, and subsequently cooling the component. The component is then age heat treated using an overaging process at a predetermined overaging temperature for a predetermined time, and the component is cooled to room temperature. The overaging temperature is selected to be a higher temperature than an aging heat treatment temperature for effecting a maximum yield strength in the component. | 03-18-2010 |
| 20110017360 | HOT-ROLLED STEEL SHEET EXCELLENT IN FATIGUE PROPERTIES AND STRETCH-FLANGE FORMABILITY AND METHOD FOR MANUFACTURING THE SAME - This hot-rolled steel sheet contains, in terms of mass%, C: 0.015% or more to less than 0.040%; Si: less than 0.05%; Mn: 0.9% or more to 1.8% or less; P: less than 0.02%; S: less than 0.01%; Al: less than 0.1%; N: less than 0.006%; and Ti: 0.05% or more to less than 0.11%, with the remainder being Fe and inevitable impurities, wherein Ti/C is in a range of 2.5 or more to less than 3.5, Nb, Zr, V, Cr, Mo, B and W are not included, a microstructure includes a mixed microstructure of polygonal ferrite and quasi-polygonal ferrite in a proportion of greater than 96%, a maximum tensile strength is 520 MPa or more and less than 720 MPa, an aging index AI is more than 15 MPa, a product of a hole expansion ratio (A) % and a total elongation (El) % is 2350 or more, and a fatigue limit is 200 MPa or more. | 01-27-2011 |
| 20120067465 | CORROSION RESISTANCE OF MAGNESIUM ALLOY ARTICLE SURFACES - Surfaces of magnesium-base alloy workpieces may be mechanically worked and deformed to increase their resistance to corrosion, especially corrosion occurring in the presence of water or water and salt or other corrosive media. Workpiece surfaces that are to be thus protected are engaged in squeezing, sliding, and frictional contact with a suitable burnishing or other working tool that traverses the surface to compress and deform it and to refine the metallurgical grain structure. For example, the grain size is reduced in a surface layer that may extend to a depth of up to a few millimeters. And grain orientation is altered within that depth. The tool is not employed to intentionally remove material from the surface of the workpiece. The initial dimensioning of the workpiece may take into consideration the alteration of surfaces by the mechanical working process. | 03-22-2012 |
| 20120305143 | COMPONENTS AND PROCESSES OF PRODUCING COMPONENTS WITH REGIONS HAVING DIFFERENT GRAIN STRUCTURES - Processes for fabricating components to have two or more regions with different grain structures, and components produced by such processes. The processes entail performing at least one forging step on a preform to produce a profile having at least a first portion corresponding to the first region of the component. The preform is formed of a precipitation-strengthened alloy having a solvus temperature, and the at least one forging step comprises a nonfinal forging step performed at a first strain rate and at a first subsolvus temperature that is below the solvus temperature of the alloy. A subsequent forging step is performed on the profile to produce a final profile comprising the first portion and a second portion corresponding to the second region of the component. The subsequent forging step is performed at a strain rate and at a subsequent subsolvus temperature, wherein at least one of the subsequent strain rate and subsequent subsolvus temperature is either higher or lower than the first strain rate or first subsolvus temperature. A heat treatment is then performed on the final profile to cause grain growth, wherein the first portion of the final profile has a different grain size than the second portion. | 12-06-2012 |
| 20120055587 | METHOD OF MANUFACTURING A BEARING RING - The present invention resides in a method of manufacturing a bearing ring ( | 03-08-2012 |
| 20120211127 | HOLLOW DRILLING STEEL ROD AND METHOD OF MANUFACTURING THE SAME - The present invention relates to a hollow drilling steel rod including a stem portion and a thread portion positioned at an end portion in an axial direction with respect to the stem portion, the hollow drilling steel rod being constituted of a steel having a specific composition described in the present specification, in which the thread portion includes a thread having been subjected to a high frequency quenching, and the thread portion and the stem portion separate from each other have been joined by a friction welding. | 08-23-2012 |
| 20120186705 | Method and Device for Producing a Metal Component - The invention relates to a method for producing a metal structural component, in particular a vehicle structural component, in which a steel part is hot formed and is hardened at least over sections by contact with a tool surface, in which the steel part is during the hardening cooled in at least two partial regions at different cooling rates, so that the partial regions after the hardening differ in their microstructure, wherein the cooling rates differing from one another are produced by sections of the tool surface corresponding to the partial regions of the steel part, which differ from one another as regards their thermal conductivities. The invention also relates to a further method for producing a metal structural component, as well as a tool and a batch furnace. | 07-26-2012 |
| 20080302451 | Method of Manufacturing Semi-Finished Sheet Products From Titanium Alloy - The invention relates to plastic working of metals, more specifically to rolling sheets, and is concerned with a method of manufacturing a semi-finished sheet product from a titanium alloy having a submicrocrystalline structure suitable for low-temperature superplastic deformation. The invention can be most efficiently used to manufacture semi-finished thin sheets, including foil, from a low-plastic two-phase titanium alloy. | 12-11-2008 |
