Silver halide photographic light-sensitive material
US5290673A · kind A · utility
4Cited by
9References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 15, 1991 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Oct 15, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/346
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An emulsion layer containing silver halide grains reduction-sensitized by an ascorbic acid or at least one of its derivatives and containing a nitrogen-containing heterocyclic compound having a mercapto group is formed on a support.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.