Silver halide photographic emulsion and photographic material containing the same which comprise junction-type silver halide crystal grains
AssigneeFuji Photo Film Co., Ltd.
InventorTadashi Ogawa
Life of this patent
Estimating the term…
Abstract
A silver halide photographic emulsion is described, comprising junction-type silver halide crystal grains composed of cubic, rectanguloid, or tetradecadedral silver halide crystals as a first type of silver halide crystal, having projection-joined to at least one of the six (100) faces of said first type of silver halide crystal a second type of silver halide crystal having a different halogen composition from the halogen composition of the surface of the first type of silver halide crystal. A silver halide photographic material containing the foregoing photographic emulsion is also described.
Claims18
A silver halide photographic emulsion comprising junction-type silver halide crystal grains composed of cubic, rectanguloid, or tetradecahedral silver halide crystals as a first type of silver halide crystal, having projection-joined to at least one of the six (100) faces of said first type of silver halide crystal a second type of silver halide crystal having a different halogen composition from the halogen composition of the surface of said first type of silver halide crystal.
A silver halide photographic material comprising a support having thereon at least one silver halide photographic emulsion layer comprising junction-type silver halide crystal grains composed of cubic, rectanguloid, or tetradecahedral silver halide crystals as a first type of silver halide crystal, having projection-joined to at least one of the six (100) faces of said first type of silver halide crystal a second type of silver halide crystal having a different halogen composition from the halogen composition of the surface of said first type of silver halide crystal.
Dependencies are inferred from the claim text.