Silver halide photographic material
US5932409A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/34
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A silver halide photographic material is described, which contains at least one compound represented by the following formula (S1): ##STR1## wherein R.sub.11 represents an alkyl group, an acyl group, an alkoxycarbonyl group, a carbamoyl group, a sulfonyl group, or a sulfamoyl group; R.sub.12 represents a hydrogen atom, an alkyl group or an acyl group, provided that when R.sub.11 represents an alkyl group, R.sub.12 represents an alkyl group, R.sub.11 and R.sub.12 may be linked with each other to form a 5- to 7-membered ring; R.sub.13 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; R.sub.14 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group; and L represents --CO--, --SO.sub.2 -- or --SO--.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.