Optical recording medium containing IR-ray absorptive compound
US5009987A · kind A · utility
10Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 14, 1989 |
| Grant date | Apr 23, 1991 |
| Priority date | — |
| Expiry date | Nov 14, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/165
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an optical recording medium comprising at least one of the following IR-ray absorptive compounds: ##STR1## Incorporation of the IR-ray absorptive compound of the present invention into an optical recording medium noticeably improves the durability of the medium measured by repeated reproduction and light resistance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.