Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Reexamination Certificate
2008-03-04
2008-03-04
Sheehan, John P. (Department: 1742)
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
C148S103000
Reexamination Certificate
active
10494677
ABSTRACT:
The present invention relates to a Sm—Co based magnet alloy useful as a raw material for producing magnets having high magnetic properties, such as sintered or bonded magnets, methods for producing such an alloy, and sintered or bonded magnets having excellent corrosion resistance and high magnetic properties, such as high coercivity and good squareness. The magnetic alloy is composed of an alloy represented by the formula RM with 32.5 to 35.5 wt % R such as Sm and the balance of M such as Co, wherein ratio (B/A) of the X-ray diffraction intensity (B) corresponding to the (119) plane of R2M7phase to the X-ray diffraction intensity (A) corresponding to the (111) plane of RM5phase is not higher than 0.1.
REFERENCES:
patent: 3844851 (1974-10-01), Haberer
patent: 4075042 (1978-02-01), Das
patent: 4076561 (1978-02-01), Lee et al.
patent: 4664723 (1987-05-01), Ishii et al.
patent: 4863511 (1989-09-01), Ishii et al.
patent: 5057165 (1991-10-01), Nagata et al.
patent: 5164023 (1992-11-01), Tabaru et al.
patent: 6001272 (1999-12-01), Ikuma et al.
patent: 6143193 (2000-11-01), Akioka et al.
patent: 2002/0054825 (2002-05-01), Sukaki
patent: 2003/0062098 (2003-04-01), Sakaki et al.
patent: 57-061083 (1982-04-01), None
patent: 04-010504 (1992-01-01), None
patent: 08-260083 (1996-10-01), None
patent: 2001-126908 (2001-05-01), None
Konishi Kenji
Shintani Kazumasa
Darby & Darby P.C.
Santoku Corporation
Sheehan John P.
LandOfFree
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