Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter
Reexamination Certificate
2005-08-09
2005-08-09
Nakarani, D. S. (Department: 1773)
Stock material or miscellaneous articles
Coated or structually defined flake, particle, cell, strand,...
Particulate matter
C252S062540, C428S336000, C428S570000, C428S704000, C428S900000
Reexamination Certificate
active
06926963
ABSTRACT:
The objects of the present invention are to provide a highly weather-resistant iron-based magnet powder containing a rare-earth element, characterized by high coercive force in a practically important humid atmosphere, resin composition containing the same powder for bonded magnets, and bonded and compacted magnets containing the same powder. The present invention provides the above-described products by optimizing the functions and types of the phosphate coating film, uniformly formed over the surfaces of the iron-based magnet powder particles containing a rare-earth element.
REFERENCES:
patent: 4668283 (1987-05-01), Honda et al.
patent: 5393445 (1995-02-01), Furuya et al.
patent: 5453137 (1995-09-01), Takahashi
patent: 6638367 (2003-10-01), Ohmori et al.
patent: 0 260 870 (1988-03-01), None
patent: 0430198 (1991-06-01), None
patent: 06-077027 (1994-03-01), None
patent: 11-251124 (1999-09-01), None
patent: 11-251131 (1999-09-01), None
patent: 2000-058312 (2000-02-01), None
patent: 2000-208321 (2000-07-01), None
patent: 2000-294415 (2000-10-01), None
Arlot et al.; “Particle size dependence of the magnetic properties of zinc-coated Sm2(Fe0.9Co0.1)17N2.9powders”; Journal of Magnetism and Magnetic Materials; vol., 172, pp. 119-127; (1997).
Hashiguchi Kayo
Ohmori Kenji
Osako Toshiyuki
Yokosawa Kouichi
Armstrong Kratz Quintos Hanson & Brooks, LLP
Nakarani D. S.
Sumitomo Metal & Mining Co., Ltd.
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