Reduction sensitization method of silver halide photographic emulsion and silver halide photographic material containing the reduction sensitized silver halide photographic emulsion
US5780218A · kind A · utility
4Cited by
8References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1996 |
| Grant date | Jul 14, 1998 |
| Priority date | — |
| Expiry date | Apr 4, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03C1/08
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method of reduction sensitization to provide a low-fog and high-speed silver halide emulsion having satisfactory preservability and a silver halide photographic material containing a silver halide emulsion having been reduction sensitized by the method are disclosed, the reduction sensitization being carried out using a compound having a group which is capable of being adsorbed onto a silver halide and a reducing group or a precursor of that compound during silver halide grain formation or after completion of grain formation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.