Global Patent Index - EP 2444984 A4

EP 2444984 A4 20150114 - METHOD AND APPARATUS FOR PRODUCING MAGNETIC POWDER

Title (en)

METHOD AND APPARATUS FOR PRODUCING MAGNETIC POWDER

Title (de)

VERFAHREN UND VORRICHTUNG ZUR HERSTELLUNG VON MAGNETPULVER

Title (fr)

PROCÉDÉ ET APPAREIL DE PRODUCTION DE POUDRE MAGNÉTIQUE

Publication

EP 2444984 A4 20150114 (EN)

Application

EP 09846173 A 20090618

Priority

JP 2009061076 W 20090618

Abstract (en)

[origin: EP2444984A1] There is provided a magnetic powder production method that aims to improve the magnetic properties of a sintered magnet by evenly coating the surface of a hard magnetic powder with a metal, such as a transition metal, etc. Such a magnetic powder production method comprises a step of aerosolizing a hard magnetic powder by means of an inert gas, a step of heating and vaporizing a metal, and a step of depositing the vaporized metal on the surface of the aerosolized hard magnetic powder.

IPC 8 full level

B22F 1/02 (2006.01); B22F 1/17 (2022.01); H01F 1/057 (2006.01); H01F 1/08 (2006.01); H01F 41/02 (2006.01)

CPC (source: EP US)

B22F 1/17 (2022.01 - EP US); C22C 38/002 (2013.01 - EP US); C22C 38/005 (2013.01 - EP); C22C 38/06 (2013.01 - EP); C22C 38/16 (2013.01 - EP); H01F 1/0572 (2013.01 - EP); B22F 3/003 (2013.01 - EP); B22F 2999/00 (2013.01 - EP); C22C 2202/02 (2013.01 - EP); H01F 1/086 (2013.01 - EP)

Citation (search report)

Designated contracting state (EPC)

AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK TR

DOCDB simple family (publication)

EP 2444984 A1 20120425; EP 2444984 A4 20150114; EP 2444984 B1 20180418; CN 102804296 A 20121128; CN 102804296 B 20150415; JP 5267665 B2 20130821; JP WO2010146680 A1 20121129; WO 2010146680 A1 20101223

DOCDB simple family (application)

EP 09846173 A 20090618; CN 200980159907 A 20090618; JP 2009061076 W 20090618; JP 2011519359 A 20090618