MAGNET AND MANUFACTURING METHOD THEREFOR, AND ROTOR FOR STEPPING MOTOR

摘要

PROBLEM TO BE SOLVED: To provide a permanent magnet capable of attaining a magnetic force high enough to be disposed on a rotor for a stepping motor, a manufacturing method capable of facilitating its manufacture, and a rotor for the stepping motor. SOLUTION: This magnet is formed with a groove portion along the whole periphery of the cylindrical permanent magnet. COPYRIGHT: (C)2007,JPO&INPIT