Metal-containing azo compound and optical recording media
US6551682B1 · kind B1 · utility
10Cited by
4References
19Claims
0Family size
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Key dates
| Filing date | Sep 14, 2001 |
| Grant date | Apr 22, 2003 |
| Priority date | — |
| Expiry date | Sep 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/21
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
There is provided a metal-containing azo compound suitably used for an recording layer of an optical medium, which is represented by at least one of the following general formulae: wherein M(II) is a bivalent metal, X1 and X2 are each a residue that forms a monocyclic or polycyclic aromatic ring, Y1 and Y2 are each a residue that forms a nitrogen-containing aromatic heterocycle, and one residue is different from the other in at least one of a combination of X1 and X2, and a combination of Y1 and Y2; and there is also provided an optical recording medium of which recording layer comprises said metal-containing azo compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.