Erasable recording media
US5090008A · kind A · utility
13Cited by
20References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1990 |
| Grant date | Feb 18, 1992 |
| Priority date | — |
| Expiry date | Apr 30, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical storage medium is disclosed. In a preferred embodiment a substrate is provided with an expansion layer. A retention layer is provided opposite the substrate. A liquid reflective layer is provided adjacent the retention layer, either adjacent to or opposite the expansion layer. The reflective layer is enclosed by a protective layer. Improved expansion and retention layers are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.