Patent ID: 7465363

Claim:
A hard magnetic compound, characterized in that: the hard magnetic compound is represented by a general formula R(Fe 100-y-w Co w Ti y ) x Si z A v (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); and the molar ratios in said 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; wherein said hard magnetic compound shows a single phase consisting of a phase having a ThMn 12 -type structure.