Konica Corporation

Toshimi Iijima

Syoji Matsuzaka

Yoshihiko Suda

Shu Nishiwaki

Takashi Kamio

Toshimi Terai

A negative type silver halide photographic material having silver halide grains of a core-shell structure. An inner core essentially consists of silver bromide or silver iodobromide and a plurality of shells consists essentially of silver bromide or silver iodobromide. The shells of each silver halide grain have (1) an outermost shell containing silver iodide of 0 to 10 mol %, (2) a highly iodide-containing shell provided inside the outermost shell and having a silver iodide content at least 6 mol % higher than that of the outermost shell, and (3) an intermediate shell provided between the outermost shell and the high iodide-containing shell. The silver iodide content of the intermediate shell is 3 mol % higher than that of the outermost shell and at least 3 mol % lower than that of the high iodide-containing shell.

Growing community of inventors

Kokubunji, Japan

Toshimi Iijima