Radial anisotropic ring magnet with a sinusoidal waveform and pr

Details Radial anisotropic ring magnet with a sinusoidal waveform and pr Radial anisotropic ring magnet with a sinusoidal waveform and pr

1992-11-12

1995-03-21

Walsh, Donald P.

Powder metallurgy processes

Powder metallurgy processes with heating or sintering

Post sintering operation

419 2, 419 5, 419 38, 419 41, 419 51, 148103, 148108, 148122, 264DIG58, 335302, H01F 1300, H01F 4116

Patent

active

053993110

ABSTRACT:
A magnet is formed as a ring magnet and magnetized by radial application of a magnetic field while the intensity of the magnetic field is changed periodically along the circumference of the ring magnet to give a circumferentially sinusoidal waveform distribution of magnetic flux density to the ring magnet in the magnetized state of the magnet.

REFERENCES:
patent: Re34229 (1993-04-01), Shimizu et al.
patent: 4417167 (1983-11-01), Ishii et al.
patent: 4678616 (1987-07-01), Kawashima
patent: 4812692 (1989-03-01), Arita
patent: 5080731 (1992-01-01), Tabaru et al.
patent: 5145614 (1992-09-01), Kuruda
patent: 5195377 (1993-03-01), Garshelis
patent: 5204569 (1993-04-01), Hino et al.
patent: 5283544 (1994-02-01), Sakurai et al.

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