Optical data recording medium

Details Optical data recording medium Optical data recording medium

1989-05-12

1991-01-15

Ryan, Patrick J.

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428913, 430945, 369284, 369288, 346766, 3461351, B32B 302

Patent

active

049852892

ABSTRACT:
A write-once type filled up with any fillers optical data recording medium provided with recording layers for a melting and diffusion recording system is disclosed, wherein a protective layer is formed between the recording layers or between the recording layer and another plate shaped member, the protective layer being composed of a member which is not adversely effected by a melting and recording operation and is not warped by changes of external conditions.

REFERENCES:
patent: 4492718 (1985-01-01), Mayer et al.
patent: 4522846 (1985-06-01), Mayer et al.
patent: 4584259 (1986-04-01), Mayer et al.
patent: 4616238 (1986-10-01), Tani et al.

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