Silver halide color photographic lightsensitive material and method for forming color image using the same
US6451517B1 · kind B1 · utility
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11Claims
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Key dates
| Filing date | Nov 17, 2000 |
| Grant date | Sep 17, 2002 |
| Priority date | — |
| Expiry date | Feb 21, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C7/3835
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide color photographic lightsensitive material includes at least one emulsion layer on a support. At least one of the emulsion layers contains a coupler represented by formula (1) below and a coupler represented by formula (2) below at a molar ratio of 1:9 to 9:1. In formulas (1) and (2), each of R1, R2, R3, and R4 independently represents a hydrogen atom or a substituent. Each of X1 and X2 represents a hydrogen atom or a group capable splitting off by coupling with the oxidized form of a developing agent. At least one of X1 and X2 is a hydrogen atom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.