Class / Patent application number | Description | Number of patent applications / Date published |
148110000 |
Silicon steel
| 60 |
148101000 |
Permanent magnet
| 22 |
148121000 |
Heat treatment
| 17 |
148108000 |
Treatment in a magnetic field
| 12 |
148104000 |
Dust cores
| 6 |
148105000 |
Particulate material | 4 |
20140326363 | R-T-B-BASED RARE EARTH MAGNET PARTICLES, PROCESS FOR PRODUCING THE R-T-B-BASED RARE EARTH MAGNET PARTICLES, AND BONDED MAGNET - The present invention provides R-T-B-based rare earth magnet particles comprising no expensive rare resources such as Dy and having an excellent coercive force which can be produced by HDDR treatment without any additional steps. The present invention relates to R-T-B-based rare earth magnet particles comprising crystal grains comprising a magnetic phase of R | 11-06-2014 |
20150380158 | APPLIED MAGNETIC FIELD SYNTHESIS AND PROCESSING OF IRON NITRIDE MAGNETIC MATERIALS - A method may include annealing a material including iron and nitrogen in the presence of an applied magnetic field to form at least one Fe | 12-31-2015 |
20160001371 | MAGNETIC COMPONENT, AND SOFT MAGNETIC METAL POWDER USED THEREIN AND MANUFACTURING METHOD THEREOF - A soft magnetic metal powder is manufactured. An aqueous solution of at least one of aluminum, silicon, a rare-earth element (including Y), and magnesium is added into a solution containing an iron ion while blowing a gas containing oxygen thereinto, to form a precursor containing at least one of aluminum, silicon, a rare-earth element (including Y), and magnesium. The precursor is reduced to obtain a metal powder. The metal powder is further slowly oxidized with oxygen to form an oxidized film on the surface of the metal powder. | 01-07-2016 |
20160086728 | METHOD FOR PRODUCING MAGNETIC MATERIAL - Provided is a method for producing a magnetic material. The method includes preparing magnetic metal particles containing at least one magnetic metal selected from a first group consisting of Fe, Co and Ni, and at least one non-magnetic metal selected from a second group consisting of Mg, Al, Si, Ca, Zr, Ti, Hf, Zn, Mn, Ba, Sr, Cr, Mo, Ag, Ga, Sc, V, Y, Nb, Pb, Cu, In, Sn and rare earth elements, pulverizing and reaggregating the magnetic metal particles, and thereby forming composite particles containing a magnetic metal phase and an interstitial phase, and heat-treating the composite particles at a temperature of from 50° C. to 800° C. The particle size distribution of the magnetic metal particles in the preparing magnetic metal particles has two or more peaks. | 03-24-2016 |
148120000 |
Working | 3 |
20100018610 | METHOD FOR PRODUCING NANOCRYSTALLINE MAGNET CORES, AND DEVICE FOR CARRYING OUT SAID METHOD - The invention relates to a method and to a device for carrying out a manufacturing process in which all magnet cores to be produced are first continuously crystallized. Depending on whether the required hysteresis loops should be round, flat or rectangular, the magnet cores are either immediately finished, that is enclosed in housings, conditioned to a rectangular hysteresis loop in a direct-axis magnetic field or to a flat hysteresis loop in a magnetic cross-field and then finished. | 01-28-2010 |
20140332118 | INTERMETALLIC MAGNETICALLY READABLE MEDIUM - An intermetallic or iron aluminide magnetically readable medium and a method of forming and reading the same are provided herein. Also provided is an identification card or tag, a key, an anti-counterfeiting measure, an anti-forging measure. The intermetallic or iron aluminide magnetically readable medium includes a magnetically readable surface, wherein the magnetically readable surface contains one or more first magnetically readable regions of the intermetallic or iron aluminide surrounded by one or more second magnetically readable regions. Additionally, the intermetallic or iron aluminide magnetically readable medium can be coated, encapsulated or concealed within a material. | 11-13-2014 |
20160108502 | METHOD FOR PRODUCING POWDER FOR MAGNET - Provided are a method for producing powder for a magnet, and methods for producing a powder compact, a rare-earth-iron-based alloy material, and a rare-earth-iron-nitrogen-based alloy material. Magnetic particles constituting the powder each have a texture in which grains of a phase of a hydride of a rare-earth element are dispersed in a phase of an iron-containing material. The uniform presence of the phase of the iron-containing material in each magnetic particle results in powder having excellent formability, thereby providing a powder compact having high relative density. The powder is produced by heat-treating rare-earth-iron-based alloy powder in a hydrogen atmosphere to separate the rare-earth element and the iron-containing material and then forming a hydride of the rare-earth element. The powder is compacted. The powder compact is heat-treated in vacuum to form a rare-earth-iron-based alloy material. The rare-earth-iron-based alloy material is heat-treated in a nitrogen atmosphere to form a rare-earth-iron-nitrogen-based alloy material. | 04-21-2016 |
Entries |
Document | Title | Date |
20090114316 | Method of Production of Grain-Oriented Electrical Steel Sheet - The present invention provides a method of production of grain-oriented electrical steel sheet greatly reducing the Watt loss of the grain-oriented electrical steel sheet and making the magnetostriction as small as possible, that is, a method of production of grain-oriented electrical steel sheet with small magnetostriction by improving the magnetic properties by irradiation by a finely focused laser beam comprising using a power modulated laser controlled in maximum power density to 1×10 | 05-07-2009 |
20140041761 | METHOD OF PRODUCING MAGNETIC SHAPE MEMORY ALLOY ELEMENTS AND THE USE THEREOF - The present invention relates to a method for producing magnetic shape memory alloy wherein the method includes surface treatment of the surface of the alloy. This invention relates also to an MSM device, for example an actuator, sensor or energy harvester including an actuating element produced using the method. | 02-13-2014 |
20140338792 | GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD OF MANUFACTURING SAME - A grain-oriented electrical steel sheet allows for manufacture of a transformer that exhibits, when the steel sheet is applied to an iron core thereof, extremely low iron loss and extremely low noise properties, makes highly efficient use of energy, and can be used in various environments. The grain-oriented electrical steel sheet has a strain distribution in regions where closure domains are formed, when observed in a cross section in the rolling direction, with a maximum tensile strain in a sheet thickness direction being 0.45% or less, and with a maximum tensile strain t (%) and a maximum compressive strain c (%) in the rolling direction satisfying Expression (1): | 11-20-2014 |