Process of preparing a recording member having a variable thickn

Details Process of preparing a recording member having a variable thickn Process of preparing a recording member having a variable thickn

1983-04-28

1985-06-11

Pianalto, Bernard D.

Coating processes

Magnetic base or coating

Magnetic coating

427132, 427287, H01F 1002

Patent

active

045228485

ABSTRACT:
A magnetic recording disk is constructed wherein a disk substrate is overlayed with at least one non-recording layer. A recording layer is then overlayed on the non-recording layer with the thickness of the recording layer at those areas corresponding to the inner track zone located toward the central hub area of the disk being thinner than the intermediate track zone radially displaced outwardly from the inner track zone toward the periphery of the recording disk.

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