Coupler and image dye light-stabilizing systems
US7090969B1 · kind B1 · utility
0Cited by
5References
21Claims
0Family size
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Key dates
| Filing date | Mar 15, 2005 |
| Grant date | Aug 15, 2006 |
| Priority date | — |
| Expiry date | May 24, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S430/132
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I1:wherein
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.