Rare earth magnet and method for manufacturing the same

Abstract

Provided are a rare earth magnet and a method for manufacturing the same, which achieve both high magnetic properties and low eddy current loss. The rare earth magnet comprises coated magnet powder particles, each comprising a rare earth magnet powder particle and a coating of an insulating material on a surface thereof, wherein the insulating material contains nanoparticles, with which the rare earth magnet powder particle is coated. The method of manufacturing the rare earth magnet comprises a coating operation which includes adding an insulating material to the rare earth magnet powder particles, such that each coated magnet powder particle comprises a rare earth magnet powder particle and a coating of the insulating material on a surface thereof, wherein the coating operation comprises spraying a nanoparticle dispersion solution containing the nanoparticles and a binding agent, to the rare earth magnet powder particles that are caused to be tumbling and flowing.

Dependencies are inferred from the claim text.