FERRITE MAGNET POWDER AND MAGNET USING THE MAGNET POWDER, AND METHOD FOR PREPARING THEM

Title:

FERRITE MAGNET POWDER AND MAGNET USING THE MAGNET POWDER, AND METHOD FOR PREPARING THEM

Document Type and Number:

WIPO Patent Application WO/2001/035424

Kind Code:

A1

Abstract:

A ferrite magnet powder which comprises, as a main phase, La-Co magnetoplumbite type ferrite having a structure obtained by partially substituting La for Sr and Co for Fe and has a composition represented by (1-x)SrO. (x/2)La¿2?O¿3?. (n-y/2)Fe¿2?O¿3?. yMO, wherein each of x, y and n represents a mole ratio, 0.22-0.02 $m(F) x $m(F) 0.22+0.02, 0.18-0.02 $m(F) y $m(F) 0.18 + 0.02, 5.2 $m(F) n $m(F) 6.0, provided that x > y.

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Inventors:

ANAMOTO SHUJI (JP)
FURUCHI ISAMU (JP)

Application Number:

PCT/JP2000/007864

Publication Date:

May 17, 2001

Filing Date:

November 08, 2000

Export Citation:

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Assignee:

SUMITOMO SPEC METALS (JP)
ANAMOTO SHUJI (JP)
FURUCHI ISAMU (JP)

International Classes:

C01G49/00; C04B35/26; C04B35/40; C22C33/02; H01F1/11; (IPC1-7): H01F1/11

Foreign References:

JPH11195516A

1999-07-21

Attorney, Agent or Firm:

Okuda, Seiji (Kataoka Bldg. 3-6 Uchiawajimachi 1-chome Chuo-ku Osaka-shi, Osaka, JP)

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