Patent ID: 9028981
Filing Date: 2015-05-12
Classification: B32B,C22C,C25D,H01F,H02K,Y10T

Abstract:
1. A metal magnet comprising: a magnet body; and a coating layer over the magnet body, wherein the coating layer being a plated film has a Martens hardness of 2500-5000 N/mm wherein the coating layer is a Ni-plated film, a Ni—B-plated film, a Ni—P-plated film, a Cu-plated film, a Zn-plated film, a Cr-plated film, a Sn-plated film, an Ag-plated film, an Au-plated film, an Al-plated film, or a metal-plated layer comprising an alloy of Ni, Cu, Zn, Cr, Sn, Ag, Au, or Al.