Patent ID: 7750776
Filing Date: 2010-07-06
Classification: B22F,H01F,H02K,Y10T

Abstract:
1. A 4-pole motor anisotropic bonded magnet, wherein: the magnet has a hollow cylindrical shape and a maximum energy product greater than 14 MGOe, formed by molding anisotropic rare-earth magnet powders with resin, wherein, in a cross section perpendicular to an axis of the anisotropic bonded magnet having a main region of a magnetic pole and a transition region in which a direction of the magnetic pole changes, wherein the anisotropic rare-earth magnet powders align an entirety of the transition region at the degree of alignment greater than 95%, and the 4-pole motor anisotropic bonded magnet in which the alignment direction is formed is magnetized in the alignment direction.