Mintz Levin Cohn Ferris Glovsky and Popeo, P.C.
Rotor permanent magnet apparatus for drive motor based on temperature distribution
Disclosed herein is a rotor permanent magnet apparatus for a drive motor based on temperature distribution. The permanent magnet may enhance coercivity without a substantial decrease in magnetic flux density Br by applying a grain boundary diffusion process of diffusing dysprosium on the surface of the permanent magnet based on the temperature distribution of the permanent magnet.
Hyundai Motor Company
H H
H02K H01F
inventional inventional
Hyoung Jun Sang Hoon Kyoung Bum Jung Shik
Cho Moon Kim Kim