| (19) |
 |
|
(11) |
EP 0 441 616 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
20.05.1992 Bulletin 1992/21 |
| (43) |
Date of publication A2: |
|
14.08.1991 Bulletin 1991/33 |
| (22) |
Date of filing: 06.02.1991 |
|
| (51) |
International Patent Classification (IPC)5: H01F 1/053 |
|
| (84) |
Designated Contracting States: |
|
DE FR GB |
| (30) |
Priority: |
09.02.1990 JP 30844/90
14.08.1990 JP 215366/90
|
| (71) |
Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
|
Kadoma-shi,
Osaka-fu, 571 (JP) |
|
| (72) |
Inventors: |
|
- Furuyama, Shizuo
Katano-shi,
Osaka 576 (JP)
- Kojima, Kiyoshi
Nara Prefecture 630-01 (JP)
|
| (74) |
Representative: Wain, Christopher Paul et al |
|
A.A. THORNTON & CO.
Northumberland House
303-306 High Holborn
London WC1V 7LE
London WC1V 7LE (GB) |
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| |
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| (54) |
Anisotropic plastic bonded magnet of the Nd-Fe-B-type and method for making same |
(57) A plastic bonded magnet comprising anisotropic neodymium-iron-boron magnetic powder
in a resin binder has from 10 to 20 weight % of the powder in the size range 10 to
49 um (microns).