Title:
POWDER FOR PERMANENT MAGNET, METHOD FOR ITS PRODUCTION AND ANISOTROPIC PERMANENT MAGNET MADE USING SAID POWDER
Document Type and Number:
WIPO Patent Application WO/1998/020507
Kind Code:
A1
Abstract:
A base material is needle-like fine particles of Fe or an Fe alloy containing Co. A hard magnetic layer containing Fe, Sm and N is provided on the surface of the needle-like fine particles and a separation layer made of an oxide of a rare earth element is provided outside the hard magnetic layer.
Inventors:
MURAKAMI RYO (JP)
Application Number:
PCT/JP1997/004012
Publication Date:
May 14, 1998
Filing Date:
November 04, 1997
Export Citation:
Assignee:
SANTOKU METAL IND (JP)
MURAKAMI RYO (JP)
MURAKAMI RYO (JP)
International Classes:
B22F1/00; B22F1/02; C22C38/00; H01F1/03; H01F1/053; H01F1/059; H01F1/06; H01F41/02; (IPC1-7): H01F1/06; H01F1/08
Foreign References:
| JPH07272913A | 1995-10-20 |
Other References:
See also references of EP 0938105A4
Attorney, Agent or Firm:
Sumida, Yoshihiro (3rd floor 123-1, Higashimachi, Chuo-k, Kobe-shi Hyogo 650, JP)
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