Silver halide emulsion, silver halide photosensitive material, heat developable photosensitive material and image recording method and image forming method using the same, and method of manufacturing the heat developable photosensitive material

摘要

Spectral sensitizing dyes represented by the following formulas (1) to (4) are disclosed; silver halide photographic materials and thermally developable photosensitive materials containing the dyes are also disclosed. CHEM CHEM