Permanent magnet member and method of producing same

Details Permanent magnet member and method of producing same Permanent magnet member and method of producing same

1994-06-06

1996-01-30

Picard, Leo P.

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

355251, 118657, 335303, H01F 702, H01F 300, G03G 1509

Patent

active

054883415

ABSTRACT:
A permanent magnet member composed of an integral sintered body made of a ferrite magnet material, the integral sintered body including a cylindrical center portion and shaft portions formed at the opposite ends of the cylindrical center portion and each having a smaller diameter than that of the cylindrical center portion, the cylindrical center portion being provided with a plurality of magnetic poles extending axially and arranged circumferentially on an outer surface of the cylindrical center portion.

REFERENCES:
patent: 3643311 (1972-02-01), Knechtel et al.
patent: 4992767 (1991-02-01), Hozumi et al.

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