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Patent Searching and Data


Title:
RARE EARTH COBALT MAGNET
Document Type and Number:
Japanese Patent JPH0620818
Kind Code:
A
Abstract:

PURPOSE: To obtain a rare earth cobalt (R2Co17) type magnet, having excellent magnetic characteristics, with which manufacturing cost can be cut down sharply without substantially impairing temperature characteristics.

CONSTITUTION: In an R2Co17 rare earth cobalt magnet containing Sm, Pr and Ce as rare earth element R and Co as transition metal element, the mixing ratio of Sm, Pr and Ce, which constitute rare earth element R, is set in such a manner that Sm becomes 30wt.% or more, Pr becomes 10 to 40wt.% and Ce becomes 5 to 40wt.%.


Inventors:
AKAGI MASANORI
Application Number:
JP1992000177153
Publication Date:
January 28, 1994
Filing Date:
July 03, 1992
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
C22C19/07; H01F1/053; H01F1/055; H01F1/06; H01F1/08; (IPC1-7): H01F1/08; C22C19/07; H01F1/053; H01F1/06
Attorney, Agent or Firm:
波多野 久 (外1名)