Optical information memory medium for recording and erasing information
US4947372A · kind A · utility
17Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 1989 |
| Grant date | Aug 7, 1990 |
| Priority date | — |
| Expiry date | Nov 30, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Recording and erasing optical information can be done by using an alloy film capable of forming two stable crystalline states differing in crystal texture and optical characteristics by being irradiated with optical energies under different conditions. The memory film includes 35-45 atom % of Indium (In) and 55-65 atom % of antimony (Sb).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.