Minebea Company, Limited

Masahito Kawasaki

Toshihiko Miura

Shunji Suzuki

Shuichi Nishida

A resin bonded rare earth magnet, compression molded from rare earth-transition alloy powder and thermosetting resin, having a magnetcomprising a mixture of thermosetting resin and rare earth-transition alloy powder with a particle size of between 20 and 300 microns, a filling materialwith particle size between 0.1 and 15 microns which is used to fill in the depressionson the surface of said magnetand is then fixed with said thermosetting resin, and a corrosion inhibiting coatmade from synthetic resin applied to the surface of said magnetwhich has been rendered smooth by the application of said filling material into the depressions on its surface.

Growing community of inventors

Shizuoka-ken, Japan

Masahito Kawasaki