Abstract: A heat-developable photosensitive material which comprises, on the same side of a support, at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol compound represented by the following general formula (1), (d) a binder, and (e) a coupler compound: wherein V1 to V8 each independently represent a hydrogen atom or a functional group; L represents a bridging group consisting of —CH(V9)— or —S—; V9 represents a hydrogen atom or a functional group. The heat-developable photosensitive material causes extremely low fog and is suitable for photomechanical reproduction.

Abstract: A method for thermally forming images for plate making, which comprises forming an image for plate making by using a thermally processed image recording material comprising a silver salt of an organic acid, a reducing agent, a color image forming material and an organic binder on a support, wherein the image consists essentially of a developed silver image and a color forming dye image and the color forming dye image shows an absorbance for ultraviolet region higher than that for visible region and has a transmission density of 0.3 or more for the region of 360-450 nm. There are provided a thermally processed image recording material and method for thermally forming images that provide significant difference of ultraviolet absorption between image areas and non-image areas suitable for printing plate making.

Abstract: A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing agent represented by the following formula (1), (d) a binder, and (e) a phenol compound represented by the following formula (2) on the same side of a support: 1

Abstract: A heat-developable photosensitive material which comprises, on at least one of the surfaces of a support, (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing agent, (d) an ultrahigh contrast agent, (e) a binder, and (f) at least one compound represented by the following formula (1) on a single surface: wherein, X represents a halogen atom; R1 represents a substituted aryl group or a heterocyclic group; R2 represents a functional group; r is an integer of from 0 to 4; and when r≧2, plural groups represented by R2 may be the same or different and they may bind to each other to form a 5- to 7-membered non-aromatic or aromatic carbon ring.

Abstract: A silver halide photographic material having on a support at least one light-sensitive emulsion layer which comprises silver halide grains having a silver chloride content of at least 95 mole %: wherein the silver halide grains each have a phase containing silver iodide in a proportion of at least 0.1 mole % for every 1 mole of total silver halides constituting the grains in the surface part situated outside the central part occupying at least 50% of the volume of each grain and, outside of this part, have no silver iodide-free layer or further have a silver iodide-free layer continuously or discontinuously the thickness of which is 0.002 .mu.m or below, and the emulsion layer further comprises a particular benzothiamonomethinecyanine sensitizing dye.

Abstract: A method of forming images in a silver halide photographic material having on a support at least one silver halide emulsion layer is described, which comprises a step of irradiating the photographic material with light in the process of image formation after development-processing. A silver halide photographic material comprising at least one compound having formula (I) is also described.

Abstract: A photothermographic material comprising light-sensitive silver halide grains, with the photosensitive material further comprising a heptamethine cyanine dye containing at least one arylthio or thienyl group as substituent.

Abstract: A silver halide photographic material comprising a support having provided thereon a light-sensitive silver halide emulsion layer, said silver halide photographic material contains at least one spectral sensitizing dye represented by the following formula (I): ##STR1## wherein Z.sub.11 represents a nonmetal atomic group necessary for completing a 5- or 6-membered nitrogen-containing heterocyclic ring; Q.sub.11 represents a nonmetal atomic group necessary for completing a 5-membered nitrogen-containing heterocyclic ring; R.sub.11 represents a substituted or unsubstituted alkyl group; R.sub.12 represents a straight chain or branched alkyl, alkenyl or alkynyl group each of which contains at least one carboxyl group and at least one ester bond, amido bond or ether bond; L.sub.11 and L.sub.12 each represents a methine group; m.sub.11 represents 0 or 1; m.sub.12 represents 0, 1 or 2: X.sub.1 represents a counter ion necessary for neutralizing a charge; and n.sub.

Abstract: The present invention provides novel indolylazaphthalides represented by formula (I) described below. The indolylazaphthalides are useful as electron donative colorless dyes for preparing recording materials. Recording materials containing the novel indolylazaphthalides of formula (I) as electron donative colorless dyes provide images having blue to cyan colors at an excellent density, while suppressing light coloration in non-image areas. ##STR1## wherein R.sup.1 represents a divalent linkage group such as an alkylene group, cycloalkylene group, aralkylene group, or a phenylene group, which linkage group is linked to a bimolecular indolylazaphthalide compound to form a bis-type structure.

Abstract: A novel methine compound is disclosed, which contains a rhodanine ring substituted with a linear or branched alkyl, alkenyl, or alkynyl group containing at least one carboxyl group and at least one ester bond, amide bond, or ether bond. The methine compound has excellent stability and dyeing power.

Abstract: A silver halide photographic material containing a methine compound containing a thiohydantoin ring substituted by a pyrazinyl group at the 3-position, which has high sensitivity, high reproducibility, good storage stability, and leaves hardly color on unexposed areas after being processed. Example General formula: ##STR1## wherein Z represents a group of atoms necessary to form a five- or six-membered nitrogen-containing heterocyclic ring; R.sub.1 represents an alkyl group; R.sub.2 represents a hydrogen atom, an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group; R.sub.3 represents a pyrazinyl group; L.sub.1 and L.sub.2 each represents a methine group; and n represents 0 or an integer of 1 to 3.

Abstract: A silver halide photographic material is described, which contains at least one compound represented by the following formula (I): ##STR1## wherein Z represents an atomic group necessary for forming a 5- or 6-membered nitrogen-containing heterocyclic ring, R.sub.1 represents an alkyl group, R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group, R.sub.3 represents a nitrogen-containing 5-membered heterocyclic ring, L.sub.1 and L.sub.2 each represents a methine group and n represents 0 or an integer of 1 to 3.

Abstract: Disclosed are a silver halide photographic material containing at least one merocyanine color-sensitizing dye having a particular structure of formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each represent an alkyl group having a residue capable of making the compound soluble in water as a free acid or salt; V.sub.1, V.sub.2, V.sub.3 and V.sub.4 each represent a hydrogen atom or a monovalent substituent, provided that these substituents (V.sub.1, V.sub.2, V.sub.3, V.sub.4) are not bonded to each other to form a ring and that the sum of the molecular weights of V.sub.1, V.sub.2, V.sub.3 and V.sub.4 is from 4 to 50; L.sub.1, L.sub.2, L.sub.3 and L.sub.4 each represent an optionally substituted methine group; M.sub.1 represents a charge-neutralizing pair ion; and m.sub.1 represents a number of from 0 to 4 that is necessary for neutralizing the intramolecular charge.

Abstract: A direct positive type silver halide photographic material is described, which contains at least one compound represented by the following formula (I) and at least one cyanine dye having a pyrazolo[5,1-b]quinazolone nucleus and a cyanine heterocycle nucleus, wherein a carbon atom at 3-position of the pyrazolo[5,1-b]quinazolone nucleus is bonded through a four-methine chain to an atom at the 2-position or 4-position of the cyanine heterocycle nucleus, provided that the 4-position is possible only when the cyanine heterocycle nucleus is a quinoline or pyridine nucleus: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents an alkyl group, an aryl group or a heterocyclic group, which may be substituted; V.sub.1, V.sub.2, V.sub.3, V.sub.4, V.sub.5, V.sub.6, V.sub.7 and V.sub.8 each represents a hydrogen atom or a monovalent substituent; L.sub.1, L.sub.2 and L.sub.3 each represents a substituted or unsubstituted methine group; M.sub.1 represents a charge-neutralizing counter ion; and m.sub.