Cyanine compounds, optical recording materials and optical recording media
US7425401B2 · kind B2 · utility
5Cited by
3References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 27, 2004 |
| Grant date | Sep 16, 2008 |
| Priority date | — |
| Expiry date | Jul 27, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/146
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An optical recording medium containing a cyanine dyes of formula:Where at least one pair of R1 & R2 and R3 & R4 are benzyl moieties, rings A and B are each a benzene or naphthalene ring, Y1 and Y2 are C 1-30 organic groups and Anm− is an m valent anion, present in an integer p.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.