Optical recording medium

Details Optical recording medium Optical recording medium

1989-04-05

1990-10-09

Ryan, Patrick

Stock material or miscellaneous articles

Circular sheet or circular blank

Recording medium or carrier

428 65, 428209, 428457, 428913, 346 76L, 3461351, 430945, 369288, B32B 300

Patent

active

049619799

ABSTRACT:
Disclosed is an optical recording medium comprising a transparent substrate having a tracking line formed therein, and a recording layer formed on that surface of the substrate in which is formed the tracking line. The recording layer consists of a low oxide of nickel. Also disclosed is an optical recording medium comprising a transparent substrate consisting of a thermoplastic resin, a thermosetting resin layer formed on each surface of the substrate, a patterned photoresist layer, said patterned photoresist layer being formed on one of the thermosetting resin layer, and a recording layer formed to cover the exposed portion of the thermosetting resin layer and the patterned photoresist layer.

REFERENCES:
patent: 4357616 (1982-11-01), Terao et al.
patent: 4500889 (1985-02-01), Wada et al.

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