Title:
OXIDE BASED MAGNETIC MATERIAL, PROCESS FOR PRODUCING THE SAME, SINTERED FERRITE MAGNET AND PROCESS FOR PRODUCING THE SAME
Document Type and Number:
WIPO Patent Application WO/2007/060757
Kind Code:
A1
Abstract:
A sintered ferrite magnet with M-type ferrite structure, containing, as indispensable
constituent elements, Ca, element R being at least one rare earth element wherein
La is indispensable, Ba, Fe and Co, and represented by the formula Ca1-x-yRxBayFe2n-zCoz
{wherein (1-x-y), x, y, z and n respectively represent Ca, element R, Ba and Co
contents and molar ratio, and the relations 0.2≤x≤0.65, 0.001≤y≤0.2,
0.03≤z≤0.65 and 4≤n≤7 are satisfied}.
Inventors:
TAKAMI TAKASHI (JP)
IWASAKI HIROSHI (JP)
MOCHI NAOKI (JP)
IWASAKI HIROSHI (JP)
MOCHI NAOKI (JP)
Application Number:
PCT/JP2006/304805
Publication Date:
May 31, 2007
Filing Date:
March 10, 2006
Export Citation:
Assignee:
NEOMAX CO LTD (JP)
TAKAMI TAKASHI (JP)
IWASAKI HIROSHI (JP)
MOCHI NAOKI (JP)
TAKAMI TAKASHI (JP)
IWASAKI HIROSHI (JP)
MOCHI NAOKI (JP)
International Classes:
C04B35/40; C04B35/26; H01F1/11
Domestic Patent References:
| WO2005027153A1 | 2005-03-24 | |||
| WO2005027153A1 | 2005-03-24 |
Foreign References:
| JPH1197225A | 1999-04-09 | |||
| JP2000268344A | 2000-09-29 | |||
| JP2001015316A | 2001-01-19 | |||
| JP2001068320A | 2001-03-16 | |||
| JP2001068319A | 2001-03-16 | |||
| JP2005032745A | 2005-02-03 | |||
| JP2003272941A | 2003-09-26 | |||
| JP3181559B2 | 2001-07-03 | |||
| JPH1197225A | 1999-04-09 |
Other References:
See also references of EP 1953123A4
Attorney, Agent or Firm:
TAKAISHI, Kitsuma (67 Kagurazaka 6-chom, Shinjuku-ku Tokyo 25, JP)
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