Optical recording materials comprising antimony-tin alloys including a third element
US5077181A · kind A · utility
15Cited by
9References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 2, 1990 |
| Grant date | Dec 31, 1991 |
| Priority date | — |
| Expiry date | May 2, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Antimony-tin alloys including a third element are useful for phase change optical recording. Some preferred alloys have a higher amorphous to crystalline transition temperature and thus, amorphous areas are stable for longer periods. Other preferred alloys exhibit improved CNR or lower noise or other improved performance characteristics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.