| 摘要 |
PROBLEM TO BE SOLVED: To provide a core that is used for a rotor for an electric motor or a stator for the electric motor and can improve strength, the rotor for the electric motor, the stator for the electric motor, and the electric motor using this core. SOLUTION: This core 10a which is used for the rotor for the electric motor or the stator for the electric motor comprises a core molded body 12a and amorphous thin films 14. These amorphous thin films are formed on the surface of the stress-concentrating part of the core molded body. COPYRIGHT: (C)2008,JPO&INPIT
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