Optical recording member
US4268840A · kind A · utility
10Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 27, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Jul 27, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31678
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording member for storing data by the selective ablation of a layer of energy absorbing material by laser address including a layer of recording material and at least one layer of a polymeric material having a second order glass transition temperature less than 293.degree. K. contiguous to at least one surface of the layer of recording material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.