(19)
(11)
EP 0 504 397 A1
(12)
(43)
Date of publication:
23.09.1992
Bulletin 1992/39
(21)
Application number:
92900166.0
(22)
Date of filing:
08.10.1991
(51)
International Patent Classification (IPC):
B22F
3/
00
( . )
B22F
9/
08
( . )
H01F
1/
08
( . )
B22F
1/
02
( . )
H01F
1/
057
( . )
H01F
41/
02
( . )
(86)
International application number:
PCT/US1991/007431
(87)
International publication number:
WO 1992/006479
(
16.04.1992
Gazette 1992/09)
(84)
Designated Contracting States:
DE FR GB IT SE
(30)
Priority:
09.10.1990
US 19900593944
(71)
Applicant:
IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
Ames, Iowa 50011 (US)
(72)
Inventors:
LOGRASSO, Barbara, K.
Ames, IA 50010 (US)
ANDERSON, Iver, E.
Ames, IA 50010 (US)
(74)
Representative:
Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
Maximilianstrasse 58
D-80538 München
D-80538 München (DE)
(54)
METHOD OF MAKING PERMANENT MAGNETS