Patent ID: 9607741
Date: 2017-03-28
CPC Classifications: C01G,C01P,C09C,H01F,Y10T

Claim:
1. A bonded magnet roll molded from Sr-based and/or Ba-based magnetoplumbite ferrite particles having a volume-average particle diameter of 2.1 to 2.7 μm and a particle diameter ×90 of 4.3 to 5.4 μm, wherein the ×90 represents a particle diameter at which a cumulative percentage of particles under sieve (undersize particles) based on a volume thereof is 90%, when determined from a particle size distribution thereof measured by using a laser diffraction type particle size distribution measuring apparatus, in an organic binder, wherein: the Sr-based magnetoplumbite ferrite particles consist of the Ba-based magnetoplumbite ferrite particles consist of