Optical storage medium
US5110648A · kind A · utility
2Cited by
1References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 26, 1989 |
| Grant date | May 5, 1992 |
| Priority date | — |
| Expiry date | Dec 26, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31504
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical storage medium comprising a recording layer containing organic dye molecules which allows recording due to change in the molecular structure or molecular aggregate structure induced by irradiation with light, and a stable controlling layer formed on the recording layer, which controlling layer is stable against the irradiation by the lights for recording or reading out. A multi-frequency optical storage medium comprises a plurality of a combination of the recording layers and the controlling layer as a separating layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.