Patent ID: 9502165
Filing Date: 2016-11-22
CPC Classification: B22F,C22C,C22F,H01F,H02K

Claim Text:
1. A permanent magnet comprising: a composition expressed by a composition formula: where, R is at least one element selected from the group consisting of rare-earth elements, M is at least one element selected from the group consisting of Zr, Ti, and Hf, p is a number satisfying 10.5≦p≦12.5 at %, q is a number satisfying 23≦q≦40 at %, r is a number satisfying 0.88≦r≦4.5 at %, and t is a number satisfying 4.5≦t≦10.7 at %; and a metal structure containing a Th wherein a number of intersections of the Cu-rich phases existing in an area of 1 μm square in a cross section including a c-axis of the Th