Method of making magnetic recording medium

Details Method of making magnetic recording medium Method of making magnetic recording medium

1987-04-01

1988-08-09

Eley, Timothy V.

Metal working

Method of mechanical manufacture

Combined manufacture including applying or shaping of fluent...

360135, B21D 2826

Patent

active

047618744

ABSTRACT:
A method of making a magnetic recording medium comprises a first step of polishing a surface of a strip-like magnetic recording medium composed of a substrate and a magnetic layer formed on a surface of the substrate by coating a magnetic material onto the surface of the substrate and drying the coated magnetic material, a second step of inspecting the polished surface of the magnetic recording medium for defects, and a third step of punching out the magnetic recording medium, on which the inspection for defects is finished, into a predetermined shape. The first step, the second step and the third step are carried out on the continuous strip-like material.

REFERENCES:
patent: 4525759 (1985-06-01), Valayil et al.

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