Class / Patent application number | Description | Number of patent applications / Date published |
148121000 | Heat treatment | 17 |
20080251159 | Methods for Producing Raw Material Alloy for Rare Earth Magnet, Powder and Sintered Magnet - A method of making a material alloy for an R-T-Q based rare-earth magnet according to the present invention includes the steps of: preparing a melt of an R-T-Q based rare-earth alloy, where R is rare-earth elements, T is a transition metal element, Q is at least one element selected from the group consisting of B, C, N, Al, Si and P, and the rare-earth elements R include at least one element R | 10-16-2008 |
20090071572 | ALLOY MATERIAL, A MAGNETIC MATERIAL, A MANUFACTURING METHOD OF A MAGNETIC MATERIAL, AND A MAGNETIC MATERIAL MANUFACTURED BY THE MANUFACTURING METHOD - The alloy material having fine grain size, which is suitable for the mass-production, the magnetic material of bulk having single phase and homogeneous composition and manufacturing method of them are offered. The alloy material comprises a plurality of phases different in composition, the grain size of each phase is 20 μm or less, and the composition as a whole is equal to an NaZn | 03-19-2009 |
20090107585 | Method for Production and Apparatus for Production of Grain-Oriented Electrical Steel Sheet Excellent in Magnetic Properties - Technology scanning and irradiating grain-oriented electrical steel sheet moving in a rolling direction at a speed Vl with an elliptical spot formed by a laser beam in the width direction at Vc to improve the core loss of the grain-oriented electrical steel sheet, which adjusts the angle θs formed by the scan direction of the elliptical beam and the long axis of the ellipse based on the equation θs=tan | 04-30-2009 |
20090159157 | HEAT TREATING DEVICE AND HEAT TREATING METHOD - A heat treatment apparatus | 06-25-2009 |
20090266448 | NANO-CRYSTALLINE, MAGNETIC ALLOY, ITS PRODUCTION METHOD, ALLOY RIBBON AND MAGNETIC PART - A magnetic alloy having a composition represented by the general formula of Fe | 10-29-2009 |
20100108196 | SOFT MAGNETIC RIBBON, MAGNETIC CORE, MAGNETIC PART AND PROCESS FOR PRODUCING SOFT MAGNETIC RIBBON - A soft magnetic ribbon that especially in a relatively low magnetic field region of 500 A/m or less, is high in the squareness of magnetic flux density-magnetization curve. There is disclosed a soft magnetic ribbon of 100 μm or less thickness comprising a parent phase structure in which by volume ratio, 30% or more of crystal grains of 60 nm or less (not including 0) crystal grain diameter are dispersed in an amorphous phase and comprising an amorphous layer disposed on the surface side of the parent phase structure. Preferably, the soft magnetic ribbon is represented by the composition formula Fe | 05-06-2010 |
20110220250 | METHOD FOR ORDERING A DISORDERED ALLOY AND MAGNETIC MATERIAL MADE THEREBY - A method for ordering a disordered alloy includes: (a) forming a layer of a first alloy on a substrate, the first alloy being composed of a first metal and a second metal, and having a meta-stable phase of a face-centered cubic (FCC) crystal structure; (b) forming a layer of a third metal on the layer of the first alloy to form a layer unit including the layer of the first alloy and the layer of the third metal; and (c) annealing the layer unit to cause interdiffusion of atoms of the first and third metals between the layer of the first alloy and the layer of the third metal so as to form an ordered second alloy composed of the second and third metals. The first metal is insoluble in the second alloy composed of the second and third metals, and has a diffusion constant greater than those of the second and third metals. | 09-15-2011 |
20120312422 | METHOD OF PRODUCING NANOCOMPOSITE MAGNET - A molten alloy that has a nanocomposite magnet composition is quenched and solidified to fabricate a foil that has a polycrystalline phase composed of a hard magnetic phase with an average crystal grain diameter of 10 to 200 nm and a soft magnetic phase with an average crystal grain diameter of 1 to 100 nm. The foil that includes a low melting point phase that is formed on a surface of the foil and that has a melting point that is lower than that of the polycrystalline phase is sintered. | 12-13-2012 |
20140034193 | Method for Producing a Grain-Oriented Flat Steel Product - The present invention relates to a method for producing a grain-oriented flat steel product that is intended for the manufacture of parts for electrotechnical applications and has minimised magnetic loss values and optimised magneto-restrictive properties, including the operations providing a flat steel product, laser-treating the flat steel product, wherein, in the course of the laser treatment, linear deformations, which are arranged with a spacing L, are formed into the surface of the flat steel product by means of a laser beam emitted by a laser beam source with a power P. The method according to the invention for producing flat steel products is optimally suited for the manufacture of parts for transformers. | 02-06-2014 |
20140174607 | RETENTION OF MAGNETIC PROPERTIES - Methods, systems, and apparatuses for retaining magnetic properties of magnetic elements while undergoing manufacturing processes are presented. In one embodiment, a manufacturing fixture includes a temperature controlled region suitable for retaining a magnetic element. The manufacturing fixture also includes a cooling mechanism configured to maintain the magnetic element at an acceptable temperature range during a thermally active manufacturing process. The temperature controlled or stabilized region can include a structure configured to receive the magnetic element and a sensor, or sensors. In one embodiment, the sensor can be configured to measure an ambient temperature of the temperature stabilized region. In another embodiment, the sensor can be a magnetic sensor configured to determine a magnetic property of the magnetic element. | 06-26-2014 |
20140283953 | METHOD FOR PRODUCING A SOFT MAGNETIC ALLOY STRIP AND RESULTANT STRIP - Method for producing a soft magnetic alloy strip suited to be mechanically cut, having a chemical composition comprising, by weight: | 09-25-2014 |
20140366990 | METHOD FOR MAKING AN ORDERED MAGNETIC ALLOY - A method for making an ordered magnetic alloy includes (a) providing a thermally conductive base having opposite first and second surfaces; (b) forming a thermal barrier layer on the first surface of the thermally conductive base; (c) forming a disordered magnetic alloy layer on the thermal barrier layer, the disordered magnetic alloy layer being made from a disordered alloy which contains a first metal selected from Fe, Co, and Ni, and a second metal selected from Pt and Pd; and (d) after step (c), applying a transient heat to the thermally conductive base to cause rapid thermal expansion of the thermally conductive base, which, in turn, causes generation of an in-plane tensile stress in the disordered magnetic alloy layer. | 12-18-2014 |
20140366991 | METHOD FOR REDUCING A RARE EARTH-BASED MAGNET - A method of treating a rare earth-based magnet is provided that comprises the following. At least one precursor sintered R | 12-18-2014 |
20150034211 | GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME - Disclosed is a grain-oriented electrical steel sheet exhibiting low hysteresis loss and low coercive force, in which an increase in hysteresis loss due to laser irradiation or electron beam irradiation, which has been a conventional concern, is effectively inhibited. The grain-oriented electrical steel sheet has closure domain regions (X) formed to divide the magnetic domains in a rolling direction, from one end to the other in the width direction of the steel sheet, provided that Expression (1) is satisfied: | 02-05-2015 |
148122000 | With special compositions | 3 |
20090145522 | Soft magnetic iron-cobalt-based alloy and method for its production - Disclosed are soft magnetic alloys that consist essentially of 10% by weight≦Co≦22% by weight, 0% by weight≦V≦4% by weight, 1.5% by weight≦Cr≦5% by weight, 1% by weight≦Mn≦2% by weight, 0% by weight≦Mo≦1% by weight, 0.5% by weight≦Si≦1.5% by weight, 0.1% by weight≦Al≦1.0% by weight, rest iron. Also disclosed are methods of making the alloys, and products containing them, such as actuator systems, electric motors, and the like. | 06-11-2009 |
20090260719 | IN-SITU ANNEALING OF A TMR SENSOR - A method in one embodiment includes applying a current to a lead of a tunneling magnetoresistance sensor for inducing joule heating of the lead or a heating layer, the level of joule heating being sufficient to anneal a magnetic layer of the sensor; and maintaining the current at the level for an amount of time sufficient to anneal the tunneling magnetoresistive (TMR) sensor. A system in one embodiment comprises a first lead coupled to one end of a tunneling magnetoresistance sensor stack; a second lead coupled to another end of the sensor stack; and a third lead coupled to the first lead, the third lead being selectively coupleable to a ground, wherein a current applied to the first lead at a predetermined level when the third lead is coupled to the ground induces joule heating of the first lead or a heating layer coupled to the first and third leads, the joule heating applied for a predetermined amount of time being sufficient to anneal a magnetic layer of the sensor. Additional systems and methods are also presented. | 10-22-2009 |
20140166159 | LA(FE,SI)13-BASED MAGNETIC REFRIGERATION MATERIAL PREPARED FROM INDUSTRIAL-PURE MISCHMETAL AS THE RAW MATERIAL AND PREPARATION AND USE THEREOF - The invention provides a La(Fe,Si) | 06-19-2014 |