EP 0997915 A2 20000503 - Flat-paticle iron powder, method for making the same and powder magnetic core using the same
Title (en)
Flat-paticle iron powder, method for making the same and powder magnetic core using the same
Title (de)
Eisenpulver von flächen Teilchen, Herstellungsverfahren und magnetische Pulverkern davon
Title (fr)
Poudre de fer en particules planes, méthode de fabrication et noyau magnétique en poudre de cela
Publication
Application
Priority
JP 27787898 A 19981030
Abstract (en)
A flat-particle iron powder, composed of reduced iron powder obtained by reducing iron oxide, has an average aspect ratio of at least 5 and an average ferrite grain size of 2 to 20 mu m, is preferably used for a powder magnetic core, has high permeability over a higher frequency region, and is covered with a compound having an amine-quinone-repeating unit to further improve its magnetic characteristics. <IMAGE>
IPC 1-7
IPC 8 full level
H01F 1/20 (2006.01); H01F 1/24 (2006.01); H01F 3/08 (2006.01); H01F 41/02 (2006.01)
CPC (source: EP)
H01F 1/20 (2013.01); H01F 1/24 (2013.01); H01F 3/08 (2013.01); H01F 41/0246 (2013.01)
Designated contracting state (EPC)
DE SE
DOCDB simple family (publication)
EP 0997915 A2 20000503; EP 0997915 A3 20000621; CA 2284139 A1 20000330
DOCDB simple family (application)
EP 99119376 A 19990929; CA 2284139 A 19990928