Optical recording medium
US5948593A · kind A · utility
23Cited by
9References
8Claims
0Family size
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Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Sep 7, 1999 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium having at least a recording layer and a reflective layer on a substrate. The recording layer contains a dipyrromethene metal chelate compound obtained from a dipyrromethene compound represented by the general formula (1) and a metal ion: ##STR1## wherein R.sup.1 to R.sup.7 are defined in the specification.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.