Motor using magnet

Details Motor using magnet Motor using magnet

2008-07-15

2008-07-15

Sheehan, John P. (Department: 1793)

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

C148S103000

Reexamination Certificate

active

11430018

ABSTRACT:
A permanent magnet comprises a hard magnetic material that contains at least a rare earth element and an anti-ferromagnetic material, wherein the hard magnetic material and the anti-ferromagnetic material are magnetically coupled. A volume ratio of the anti-ferromagnetic material is 20% or less, based on the permanent magnet.

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Machine Translation of Japanese Patent Document No. 05-315120.
Sort et al., “Improving the Energy Product of Hard Magnetic Materials,”Physical Review B, pp. 174420, 174421, 174425.
Sort et al., “Room-temperature Coercivity Enhancement in Mechanically Alloyed Antiferromagnetic-ferromagentic Powders,”Applied Physics Letters, 1999, pp. 3177-3179, vol. 75, No. 20, American Institute of Physics.

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