Color diffusion-transfer light-sensitive material
US6489088B2 · kind B2 · utility
1Cited by
5References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 14, 2001 |
| Grant date | Dec 3, 2002 |
| Priority date | — |
| Expiry date | Mar 14, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C8/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A color diffusion-transfer photographic light-sensitive material provided with at least two light-sensitive silver halide emulsion layers, each of which is combined with a non-diffusive dye image forming compound forming or releasing a diffusive dye or its precursor in relation to silver development, or with a dye image forming compound whose diffusibility changes in relation to silver development, on a support, the light-sensitive material comprises a specific hydrazine compound and a specific compound improved in storability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.