Radiation imagery chemistry: process – composition – or product th – Visible imaging using radiation only other than heating by...
Patent
1989-06-28
1990-12-04
Michl, Paul R.
Radiation imagery chemistry: process, composition, or product th
Visible imaging using radiation only other than heating by...
430290, 430945, 430495, 3461351, G03C 172
Patent
active
049753550
ABSTRACT:
An optical disk comprises a polycarbonate substrate, a first protective layer formed on the substrate and made of SiO.sub.2, a recording layer formed on the first protective layer and made of an In-Sb-Te alloy, a second protective layer formed on the recording layer and made of SiO.sub.2, and a surface protective layer formed on the second protective layer and made of an ultraviolet curable resin. The recording layer has a composition of In.sub.50-x Sb.sub.50 Te.sub.x (wherein x is in atomic % and falls within the range of 0<x<20).
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Suzuki et al., Erasible-Optical Disk of Phase Transition Type (3) 18p-ZP-8, Meeting of the Applied Physics Society, Autumn 1987.
Xerox Research Disclosure, Roberta M. Fay, vol. 10, No. 3, May/Jun. 1985, p. 161.
Kabushiki Kaisha Toshiba
Michl Paul R.
Wright Lee C.
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