Patent ID: 6987627

Claim:
A device for use in performing simultaneous contact printing of magnetic patterns in opposing surfaces of a dual-sided magnetic or magneto-optical (MO) recording medium, comprising: (a) a fixedly mounted first magnetic pole having a first end surface; (b) an axially movable second magnetic pole in axial alignment with said first magnetic pole, said second magnetic pole having a second end surface opposite to and facing said first end surface of said first magnetic pole; (c) a first portion of a centering insert fixture mounted on said first end surface of said first magnetic pole; (d) a second portion of a centering insert fixture mounted on and extending outwardly from said second end surface of said second magnetic pole; (e) a first platen made of a non-magnetic material, said first magnetic pole extending through an opening in a central portion of said first platen: and (f) a second platen made of a non-magnetic material, said second magnetic pole extending through an opening in a central portion of said second platen.