Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Reexamination Certificate
2011-04-26
2011-04-26
Sheehan, John P (Department: 1736)
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
C148S101000, C148S103000, C419S023000, C419S030000, C419S038000
Reexamination Certificate
active
07931756
ABSTRACT:
A method of making a rare-earth alloy granulated powder according to the present invention includes the steps of: preparing a rare-earth alloy powder; generating remnant magnetization in the powder; and granulating the powder by utilizing agglomeration force produced by the remnant magnetization of the powder. Since the agglomeration force produced by the remnant magnetization is utilized, the addition of a granulating agent may be omitted.
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Kuniyoshi Futoshi
Otani Tomoiku
Costellia Jeffrey L.
Hitachi Metals Ltd.
Nixon & Peabody LLP
Sheehan John P
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