Thin type optical memory medium and method for preparing the sam

Details Thin type optical memory medium and method for preparing the sam Thin type optical memory medium and method for preparing the sam

1992-08-12

1995-01-03

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428913, 430945, 346 76L, 3461351, B32B 300

Patent

active

053785169

ABSTRACT:
An optical memory medium comprises a heat-resistant sheet a plastic resin layer having an uneven guide groove on the heat-resistant sheet, and an optical recording layer on the plastic resin layer. A method for preparing an optical memory medium comprises forming an uneven guide groove on a plastic resin existing directly or through another layer on a heat-resistant sheet, and laminating an optical recording layer on the surface of the resin layer having said uneven guide groove.

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