Metal treatment – Stock – Magnetic
Reexamination Certificate
2007-09-20
2010-11-16
Sheehan, John P (Department: 1793)
Metal treatment
Stock
Magnetic
C148S302000, C148S306000, C062S003100, C062S006000
Reexamination Certificate
active
07833361
ABSTRACT:
An alloy is used for production of magnetic refrigeration material particles. The alloy contains La in a range of 4 to 15 atomic %, Fe in a range of 60 to 93 atomic %, Si in a range of 3.5 to 23.5 atomic % and at lease one element M selected from B and Ti in a range of 0.5 to 1.5 atomic %. The alloy includes a main phase containing Fe as a main component element and Si, and a subphase containing La as a main component element and Si. The main phase has a bcc crystal structure and an average grain diameter of 20 μm or less.
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“Magnetic Property of La (FexSi1-x)13Based Giant Quantity of Heat Compound Spheroidized by Rotating Electrode Method”, Collected Abstracts of the 2006 Autumn Meeting of the Japan Institute of Metals, Sep. 16-18, 2006, No. 139, p. 406.
Kobayashi Tadahiko
Saito Akiko
Tsuji Hideyuki
Kabushiki Kaisha Toshiba
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
Sheehan John P
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