Optical recording medium

Details Optical recording medium Optical recording medium

1987-02-02

1987-12-01

Herbert, Thomas J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Edge feature

3461351, 346137, 428203, 428209, 428210, 428469, 428913, 430945, B32B 712, B32B 1504, G01D 900

Patent

active

047104180

ABSTRACT:
An optical recording medium comprises a plurality of layers including an optical recording layer laminated on the substrate, said substrate having a region on and around the edge portion thereof where no optical recording layer is formed, and said region being sealed by any of said layers other than said optical recording layer.

REFERENCES:
patent: 4284678 (1981-08-01), Jones
patent: 4347265 (1982-08-01), Washo
patent: 4410581 (1983-10-01), Nam
patent: 4435801 (1984-03-01), Levin
patent: 4543307 (1985-09-01), Drexler et al.

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