Title:
RARE EARTH SINTERED MAGNET AND METHOD FOR PRODUCTION THEREOF
Document Type and Number:
WIPO Patent Application WO/2007/010860
Kind Code:
A1
Abstract:
A rare earth sintered magnet which comprises 12.0 atomic % to 15.0 atomic % of a
rare earth element (which is at least one element selected from the group consisting
of Nd, Pr, Gd, Tb, Dy and Ho and contains Nd and/or Pr in an amount of 50 % or more),
5.5 atomic % to 8.5 atomic % of boron (B), a prescribed amount of an additive metal
A, and the balanced amount of iron (Fe) and inevitable impurities. The prescribed
amount of an additive metal A is at least one of 0.005 atomic % to 0.30 atomic % of
silver (Ag), 0.005 atomic % to 0.40 atomic % of nickel (Ni) and 0.005 atomic % to
0.20 atomic % of gold (Au).
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Inventors:
MORIMOTO HIDEYUKI (JP)
ODAKA TOMOORI (JP)
ODAKA TOMOORI (JP)
Application Number:
PCT/JP2006/314076
Publication Date:
January 25, 2007
Filing Date:
July 14, 2006
Export Citation:
Assignee:
NEOMAX CO LTD (JP)
MORIMOTO HIDEYUKI (JP)
ODAKA TOMOORI (JP)
MORIMOTO HIDEYUKI (JP)
ODAKA TOMOORI (JP)
International Classes:
H01F1/08; B22F3/02; C22C33/02; C22C38/00; H01F1/053
Foreign References:
| JPH04293206A | 1992-10-16 | |||
| JPH07272929A | 1995-10-20 | |||
| JPS63241141A | 1988-10-06 | |||
| JPS63241142A | 1988-10-06 | |||
| JPS61221353A | 1986-10-01 | |||
| JPH04133406A | 1992-05-07 | |||
| JPS59204211A | 1984-11-19 | |||
| JPH04343204A | 1992-11-30 | |||
| JPH0562814A | 1993-03-12 | |||
| JPH09270310A | 1997-10-14 |
Attorney, Agent or Firm:
OKUDA, Seiji (10th Floor Osaka Securities Exchange Bldg., 8-16, Kitahama 1-chome, Chuo-k, Osaka-shi Osaka 41, JP)
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