Method and apparatus for producing magnetic recording medium

Details Method and apparatus for producing magnetic recording medium Method and apparatus for producing magnetic recording medium

1989-01-18

1990-06-05

Pianalto, Bernard

Coating processes

Electrical product produced

Integrated circuit, printed circuit, or circuit board

118 67, 118407, 118620, 427128, B05D 314

Patent

active

049313096

ABSTRACT:
A method and apparatus for producing a magnetic medium having a uniform orientation of magnetic particles over the entire width of the medium. Correcting magnets are provided which produce a magnetic field which linearizes the main orienting magnetic field in regions where the main magnetic field diverges outwardly toward edge portions of the medium. The correcting magnets may be disposed along either a straight or curved line diverging outwardly from the edges of the support of the medium, or they may be disposed parallel to the edges of the medium and having a varying magnetic field strength in the downstream direction of the medium with respect to its direction of conveyance.

REFERENCES:
patent: 3627580 (1971-12-01), Krall
patent: 4177442 (1979-12-01), Bate et al.
patent: 4271782 (1981-06-01), Bate et al.

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