Optical recording medium

Details Optical recording medium Optical recording medium

1988-09-08

1990-10-23

Michl, Paul R.

Radiation imagery chemistry: process, composition, or product th

Radiation sensitive product

430270, 430945, 3461351, G11B 724, G11B 1103, G03C 173

Patent

active

049651781

ABSTRACT:
An optical recording medium comprising a recording layer containing at least one compound selected from the group consisting of azulenium salt compounds represented respectively by Formulae (I), (II), (III) and (IV), and an optical recording method comprising forming pits and recording information by irradiation of a laser beam on an optical recording medium having a recording layer containing one or more of azulenium salt represented by Formulae (I), (II), (III) and (IV).

REFERENCES:
patent: 4548886 (1985-10-01), Katagiri et al.
patent: 4656121 (1987-04-01), Sato et al.
patent: 4738908 (1988-04-01), Oguchi et al.

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