Optical recording medium and process for the production thereof
US4943681A · kind A · utility
13Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 1989 |
| Grant date | Jul 24, 1990 |
| Priority date | — |
| Expiry date | Dec 22, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium which comprises an organic thin film layer containing at least one of phthalocyanine compounds, due to which high light absorptivity to laser beams and high recording sensitivity can be obtained. The optical recording medium provided by the present invention has high chemical and physical stability. There is also disclosed a process for the production of the optical recording medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.