Optical information recording medium
US5095479A · kind A · utility
27Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 12, 1991 |
| Grant date | Mar 10, 1992 |
| Priority date | — |
| Expiry date | Aug 12, 2011 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical information recording medium is composed of a substrate and a recording layer, formed thereon, which recording layer causes the reversible phase change by the application of an electromagnetic wave thereto, and comprises a phase-changeable type alloy with the composition of (XYZ.sub.2).sub.1-x M.sub.x, wherein X is an element of the group Ib, Y is an element of the group Va, Z is an element of the group VIa, M is an element selected from the group consisting of Sb, Bi, In, Al and Ga, and 0<x<1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.