Class / Patent application number | Description | Number of patent applications / Date published |
148104000 | Dust cores | 6 |
20090320961 | Method For The Production Of Magnet Cores, Magnet Core And Inductive Component With A Magnet Core - A magnet core is required to be particularly dense, made of alloys produced in a rapid solidification process and have a minimal coercitive field strength. To achieve these aims, a coarse-grain powder fraction is first produced from an amorphous strip of a soft magnetic alloy. In addition, at least one fine-grain powder fraction is produced from a nanocrystalline strip of a soft magnetic alloy. The particle fractions are then mixed to produce a multi-modal powder, wherein the particles of the coarse-grain particle fraction have an amorphous structure and the particles of the fine-grain powder fraction have a nanocrystalline structure. The multi-modal powder is then pressed to produce a magnet core. | 12-31-2009 |
20110024000 | POWDER FOR DUST CORE AND METHOD FOR PRODUCING THE SAME - A powder for a dust core comprising a silicon-containing layer formed within a depth of less than 0.15 D from the surface of the surface layer of a soft magnetic metal powder having a particle diameter D and a method for producing the same are provided. | 02-03-2011 |
20110056588 | Method For The Production Of Magnet Cores, Magnet Core And Inductive Component With A Magnet Core - A magnet core is required to be particularly dense, made of alloys produced in a rapid solidification process and have a minimal coercitive field strength. To achieve these aims, a coarse-grain powder fraction is first produced from an amorphous strip of a soft magnetic alloy. In addition, at least one fine-grain powder fraction is produced from a nanocrystalline strip of a soft magnetic alloy. The particle fractions are then mixed to produce a multi-modal powder, wherein the particles of the coarse-grain particle fraction have an amorphous structure and the particles of the fine-grain powder fraction have a nanocrystalline structure. The multi-modal powder is then pressed to produce a magnet core. | 03-10-2011 |
20130153088 | METHOD FOR PRODUCING A RARE EARTH-BASED MAGNET - A method for producing a rare earth-based magnet is provided that comprises providing a precursor sintered R | 06-20-2013 |
20140352847 | METHOD FOR PREPARING R-FE-B BASED SINTERED MAGNET - A method for preparing an R—Fe—B based sintered magnet, including: preparing a R | 12-04-2014 |
20150357118 | METHOD FOR MANUFACTURING Fe-BASED AMORPHOUS METAL POWDER AND METHOD FOR MANUFACTURING AMORPHOUS SOFT MAGNETIC CORES USING SAME - A manufacturing method of an amorphous soft magnetic core using a Fe-based amorphous metallic powder includes size-sorting an amorphous metallic powder obtained by pulverizing an amorphous ribbon prepared by a rapid solidification process (RSP) and then using the amorphous metallic powder having a particle size distribution so as to comprise 10 to 85 wt. % of powder having a particle size of 75 to 100 μm, 10 to 70 wt. % of powder having a particle size of 50 to 75 μm, and 5 to 20 wt. % of powder having a particle size of 5 to 50 μm to manufacture an amorphous soft magnetic core with excellent high-current DC bias characteristic and good core loss characteristic. | 12-10-2015 |