EP 2226142 A1 20100908 - POWDER AND METHOD FOR PRODUCING THE SAME
Title (en)
POWDER AND METHOD FOR PRODUCING THE SAME
Title (de)
PULVER UND HERSTELLUNGSVERFAHREN DAFÜR
Title (fr)
POUDRE ET SON PROCÉDÉ DE PRODUCTION
Publication
Application
Priority
- JP 2008071031 W 20081119
- JP 2007318251 A 20071210
Abstract (en)
The powder of the invention comprises metal powder, an apatite layer covering the metal powder and silica particles attached to the metal powder or apatite layer. The powder of the invention allows annealing to be carried out at high temperature without destruction of the insulating layer during production of powder magnetic cores. The insulating property of the insulating layer is therefore maintained, and a powder magnetic core with sufficiently high magnetic permeability can be obtained.
IPC 8 full level
B22F 1/02 (2006.01); B22F 1/16 (2022.01); H01F 1/24 (2006.01); B22F 1/08 (2022.01)
CPC (source: EP US)
B22F 1/16 (2022.01 - EP US); H01F 1/24 (2013.01 - EP US); B22F 1/08 (2022.01 - EP US)
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 MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2226142 A1 20100908; EP 2226142 A4 20170412; CA 2708830 A1 20090618; CA 2708830 C 20130122; CN 101896300 A 20101124; CN 101896300 B 20120822; CN 102717069 A 20121010; CN 102717069 B 20141217; JP 5321469 B2 20131023; JP WO2009075173 A1 20110428; TW 200932404 A 20090801; TW I433741 B 20140411; WO 2009075173 A1 20090618
DOCDB simple family (application)
EP 08860500 A 20081119; CA 2708830 A 20081119; CN 200880119924 A 20081119; CN 201210225600 A 20081119; JP 2008071031 W 20081119; JP 2009545377 A 20081119; TW 97145543 A 20081125