Optical information recording medium
US5024910A · kind A · utility
17Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1989 |
| Grant date | Jun 18, 1991 |
| Priority date | — |
| Expiry date | Jun 21, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention provides an optical information recording medium whose recording thin film is made of three components of GeTe, Sb.sub.2 Te.sub.3 and Sb derived from a GeTe alloy, an Sb.sub.2 Te.sub.3 alloy and excess Sb and which is capable of recording, reproduction and erasure. By this, optical disk files which have a stable cycle characteristic and are practically useful can be realized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.