Rare earth magnet and its manufacturing method

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PROBLEM TO BE SOLVED : To provide a rare earth magnet that provides high electric resistance stably and prevents efficiency deterioration due to overcurrent loss, and a method for manufacturing such a rare earth magnet. SOLUTION : For example, this method coats Nd-Fe-B magnetic powders with rare-earth oxides, and presses and forms at a high temperature the mixtures made by mingling magnetic powders coated with insulating materials and rare-earth oxides so that the rare-earth oxides can intervene between the particles of magnetic powders coated with rare-earth oxides. COPYRIGHT : (C)2007, JPO&INPIT