Compositions – Magnetic – Free metal or alloy containing
Reexamination Certificate
2011-08-09
2011-08-09
Brunsman, David M. (Department: 1732)
Compositions
Magnetic
Free metal or alloy containing
C252S06251C, C252S067000, C148S300000, C148S301000, C148S306000, C148S331000, C148S336000, C420S083000
Reexamination Certificate
active
07993542
ABSTRACT:
A magnetic material for magnetic refrigeration has a composition represented by (R11-yR2y)xFe100-x(R1 is at least one of element selected from Sm and Er, R2 is at least one of element selected from Ce, Pr, Nd, Tb and Dy, and x and y are numerical values satisfying 4≦x≦20 atomic % and 0.05≦y≦0.95), and includes a Th2Zn17crystal phase, a Th2Ni17crystal phase, or a TbCu7crystal phase as a main phase.
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Kobayashi Tadahiko
Saito Akiko
Sakurada Shinya
Tsuji Hideyuki
Brunsman David M.
Johnson Kevin M
Kabushiki Kaisha Toshiba
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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