Metal treatment – Stock – Magnetic
Reexamination Certificate
2004-01-28
2008-12-16
Sheehan, John P. (Department: 1793)
Metal treatment
Stock
Magnetic
C148S315000
Reexamination Certificate
active
07465363
ABSTRACT:
A single phase consisting of a ThMn12phase can be obtained by having the composition thereof represented by a general formula R(Fe100-y-wCowTiy)xSizAv(in the general formula, R is at least one element selected from rare earth elements (here the rare earth elements signify a concept inclusive of Y), Nd accounts for 50 mol % or more of R, and A is N and/or C) in which the molar ratios in the general formula are such that x=10 to 12.5, y=(8.3−1.7×z) to 12.3, z=0.1 to 2.3, v=0.1 to 3 and w=0 to 30, and the relation (Fe+Co+Ti+Si)/R>12 is satisfied.
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European Search Report for corresponding European application No. 047059167.7 lists the reference above.
Fukuno Akira
Nakamura Hideki
Nakane Makoto
Sakamoto Atsushi
Hogan & Hartson LLP
Sheehan John P.
TDK Corporation
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