Metal treatment – Process of modifying or maintaining internal physical... – Magnetic materials
Reexamination Certificate
2007-02-13
2007-02-13
Sheehan, John P. (Department: 1742)
Metal treatment
Process of modifying or maintaining internal physical...
Magnetic materials
C148S105000
Reexamination Certificate
active
10683396
ABSTRACT:
A method for making a nano-scale amorphous soft magnetic powders obtained by thermally processing and crystallizing amorphous ribbons produced using a rapid solidification process (RSP) and crushing the same. The amorphous soft magnetic core having an excellent high-frequency characteristic is obtained by performing a preliminary thermal treatment of Fe-based amorphous metal ribbons produced by using RSP to then be converted into nano-scale grain metal ribbons, crushing the metal ribbons to thereby obtain nano-scale grain metal powders, classifying the nano-scale grain metal powders to then be mixed into a distribution of powder particles having an optimal uniform composition, mixing the mixed powder with a binder, and then forming a core, and annealing the formed core to then coat the core with an insulating resin.
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Kim Hie Jin
Song Yong Sul
Amosense Co., Ltd.
Rosenberg , Klein & Lee
Sheehan John P.
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