Abstract: 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.

Abstract: 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.

Abstract: A red or infrared sensitive silver halide emulsion is disclosed, comprising at least a compound represented by the following formula. A photographic material containing the emulsion is also disclosed.

Abstract: 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.

Abstract: A noble benzimidazolocarbocyanine dye represented by the following formulas is disclosed. A silver halide emulsion and a silver halide photographic material containing the dye are also disclosed.

Abstract: A silver halide photographic light sensitive material is disclosed, comprising a support having thereon a silver halide emulsion layer comprising a silver halide emulsion, wherein the silver halide emulsion comprises silver halide grains having an average iodide content of 0 to 1 mol %, at least 50% of total grain projected area is accounted for by tabular grains having an aspect ratio of 2 to 20; and the silver halide grains being spectrally sensitized with a sensitizing dye represented by the following formula (1) or (2): ##STR1##

Abstract: A thermal transfer recording material is disclosed, comprising an azomethine dye represented by the following formula and a metal ion-containing compound.

Abstract: Disclosed is silver halide photographic light-sensitive material comprising a support and thereon at least one light-sensitive silver halide emulsion layer, wherein at least one layer of said light-sensitive silver halide emulsion layer contains silver halide grains spectrally sensitized with a dye selected from the group consisting of Formula S-I and Formula S-II: ##STR1##

Abstract: A silver halide light-sensitive material is disclosed, which has an improved sliding ability and antiadhesion property and has good photographic characteristics. The light-sensitive material comprises a support having, on a side of the support, a silver halide emulsion layer and a protective layer provided on the silver halide emulsion layer, and on the other side of the support, a backing layer and a protective layer provided on the backing layer, wherein at least one of the protective layer on the emulsion layer and the protective layer of the backing layer contains particles comprising boron nitride.

Abstract: Light sensitive compositions are disclosed which comprise 2-halomethyl-1,3,4,-oxadiazole compounds having a heterocyclic radical in the fifth position containing at least one element selected from the group consisting of oxygen, nitrogen, sulphur, and selenium directly or through a vinyl radical.

Abstract: A photosensitive composition containing an o-naphthoquinonediazido compound of Formula I ##STR1## wherein X is an oxy or amino group, Y is a cyano or nitro group, and n is an integer of 2 to 5, and an organic dye capable of changing its color when the photosensitive composition is exposed.

Abstract: A developer composition of an alkaline aqueous solution containing a reducing inorganic salt, typically an alkali metal salt of sulfurous acid such as sodium sulfite, is found to be applicable for development of a lithographic printing plate material containing a photosensitive o-quinonediazide compound and an organic polymer, with reduced deterioration in developing capacity caused by the air and enhanced stability with lapse of time. In particular, a developer composition composed of an alkaline aqueous solution of pH 11 or higher containing a water-soluble sulfurous acid salt is effective for developing both of a lithographic printing plate material having a nega-type photosensitive layer containing a photosensitive diazo compound and an organic polymer, and a lithographic printing plate material having a posi-type photosensitive layer containing an o-quinonediazide compound and an organic polymer.

Abstract: The main photosensitive ingredient of the photosensitive composition is prepared by subjecting a polymer, which is obtained by homopolymerizing, or copolymerizing with another copolymerizable monomer, a monomer of the general formula ##STR1## in which R represents a hydrogen atom, a halogen atom, or an alkyl group, Y represents a substituted or unsubstituted phenylene group or a substituted or unsubstituted naphthylene group, p is 0 or 1, and when p=1, X represents a divalent organic group, to reaction with p-azidocinnamylidene-.alpha.-cyanoacetic chloride in the presence of an organic or inorganic base.