Abstract: A silver halide photographic emulsion is disclosed, which comprises at least one dye or sensitizing dye having at least one organic counter ion; and also a silver halide photographic emulsion layer containing the above dye or sensitizing dye and a method of producing the above silver halide photographic emulsion are disclosed.

Abstract: A silver halide photographic light-sensitive material having at least one emulsion layer comprising silver halide grains, with the emulsion layer further comprising at least one compound represented by the following formula (I) and at least one compound represented by the following formula (II), (III), (IV-1), (IV-2), (V-1), (V-2), (V-3) or (VI): (X&Parenclosest;1&Parenopenst;L&Parenclosest;m&Parenopenst;A—B)n  (I)  (Het&Parenclosest;k1&Brketopenst;&Parenopenst;Q1&Parenclosest;k2&Parenopenst;Hy)]k3  (III) wherein the substituents as defined herein the specification.

Abstract: A silver halide photographic emulsion which comprises at least one methine compound represented by the following formula (I): wherein X1 and X2 each represents an oxygen atom, a sulfur atom, a selenium atom, or N—R3, wherein R3 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a heterocyclic group; V1 and V2 each represents a monovalent substituent; n1 and n2 each represents 0, 1, 2, 3 or 4; L1, L2 and L3 each represents a methine group; l represents an integer of 0 to 3; M represents a counter ion for balancing electric charge; m represents a necessary number for balancing electric charge; and R1 and R2 each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group, but at least either R1 or R2 represents the alkyl group represented by any of the following formulae: Ra=(Qa)rCO{overscore (N)}SO2Raa Rb=(Qb)sSO2{o

Abstract: A silver halide photographic emulsion is disclosed, comprising a silver halide grain having a spectral absorption maximum wavelength of less than 500 nm and a light absorption intensity of 60 or more or having a spectral absorption maximum wavelength of 500 nm or more and a light absorption intensity of 100 or more, wherein assuming that a maximum value of the spectral absorption factor of said emulsion by a sensitizing dye is Amax, the distance between the shortest wavelength showing 80% of Amax and the longest wavelength showing 80% of Amax is 20 nm or more and the distance between the shortest wavelength showing 50% of Amax and the longest wavelength showing 50% of Amax is 120 nm or less.

Abstract: A black-and-white photothermographic material that is sensitive at a wavelength greater than 700 nm, and comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more indolenine dyes as post-processing stabilizing compounds and one or more merocyanine dyes or cyanine spectral sensitizing dyes that comprise one or more thioalkyl, thioaryl, or thioether groups.

Abstract: Provided is a silver halide color photographic material having at least one yellow-coloring photosensitive silver halide emulsion layer, at least one magenta-coloring photosensitive silver halide emulsion layer, at least one cyan-coloring photosensitive silver halide emulsion layer, and at least one non-photosensitive non-coloring hydrophilic colloid layer on a reflective support, wherein, after being color developed, the reflection density A(&lgr;) at a wavelength of &lgr; nm in the non-exposed portion of the material is at most 0.07 at 450 nm, at most 0.09 at 550 nm and at most 0.07 at 650 nm and the mean grain size of the silver halide grains in the yellow-coloring photosensitive silver halide emulsion layer in the material is at most 0.70 &mgr;m.

Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith a combination of two or more dyes comprising: (a) a first dye which is a cyanine dye of formula Ia and has a net charge of zero or −1  wherein the substituents are as defined in the specification; (b) a second dye which has at least one substituent that has a positive charge, and is a cyanine dye a merocyanine dye, arylidene dye, complex cyanine dye, complex merocyanine dye, homopolar cyanine dye, hemicyanine dye, styryl dye, hemioxonol dye, oxonol dye, anthraquinone dye, triphenylmethane dye, azo dye type, azomethines, or a coumarin dye, with the proviso that if the second dye is a cyanine dye, it is of formula IIa:  wherein the substituents are as defined in the specification; and wherein (c) the wavelength of maximum light absorption, in nanometers (nm), of the first dye and the wavele

Abstract: Disclosed is a photothermographic material containing a non-photosensitive silver salt and a photosensitive silver halide on a support, wherein the photosensitive silver halide is spectrally sensitized with a spectral sensitizing dye so that maximum spectral sensitivity wavelength could become longer than 730 nm and the conditions defined by the following formulas (1) and (2) and/or the conditions defined by the following formulas (3) and (4) could be satisfied: 300≧S(&lgr; max)/S(&lgr; max+30 nm)≧4.5  Formula (1) 30≧S(&lgr; max)/S(&lgr; max−30 nm)≧2  Formula (2) 300≧Abs.(&lgr; max)/Abs.(&lgr; max−30 nm)≧4.5  Formula (3) 30≧Abs.(&lgr; max)/Abs.(&lgr; max−30 nm)≧2  Formula (4) wherein, in the above formulas, &lgr;max denotes maximum spectral sensitivity wavelength, Abs.(&lgr;) denotes optical density at a wavelength of &lgr; and S(&lgr;) denotes spectral sensitivity at a wavelength of &lgr;.

Abstract: A high-sensitive silver halide photographic light-sensitive material is provided.

Abstract: A silver halide photographic emulsion comprising grains, wherein 70% or more of the total projected area of the grains is occupied by silver halide grains each meeting requirements (a) to (d) below

Abstract: A color photographic silver halide material which can be developed to form a negative, at least 95 mol % of the silver halides of which consist of AgCl, and which contains at least one light-sensitive silver halide emulsion layer, the silver halide of which contains at least one compound of formulae (I), (II) and (III):

Abstract: This invention comprises a multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said layers comprises large tabular grains having an average circular diameter of greater than 2 &mgr;m and contains a fragmentable electron donating compound is of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein X is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a pr

Abstract: A silver halide photographic emulsion which contains silver halide grains having a spectral absorption maximum wavelength of less than 500 nm and a light absorption strength of 60 or more, or a spectral absorption maximum wavelength of 500 nm or more and a light absorption strength of 100 or more, wherein at least one of the sensitizing dyes which are used for spectrally sensitizing the emulsion does not have an electric charge in the molecule at all, or forms an inner salt and the molecule does not have an electric charge as a whole and has at least one aromatic ring in the molecule.

Abstract: A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said silver halide emulsion layers contains a tabular grain silver halide emulsion having a halide content of at least 95% bromide and less than about 5% iodide, said iodide being substantially uniformly distributed in the silver halide grains of said emulsion, and said emulsion is sensitized with a fragmentable electron donor of the formula X—Y′ or an electron donor which contains an —XY′ moiety; wherein

Abstract: Photothermographic materials comprise heat-bleachable antihalation compositions in antihalation layers. These compositions comprise a hexaarybiimidazole and one or more infrared radiation absorbing compounds that are represented by the following Structure I: A1—L1—A2  I wherein A1 represents a group derived from a dye base, a heterocyclic group, or an electron-donating aromatic group, A2 represents a group derived from a dye base, a heterocyclic group, a group derived from a dye acid, or an electron-donating aromatic group, and L1 represents a conjugated linking group that maintains electron delocalization between A1 and A2 to provide infrared absorbance. The antihalation composition is typically bleached when subjected to a temperature of at least 90° C. for at least 0.5 seconds.

Abstract: This invention comprises a photographic element comprising at least one light-sensitive silver halide emulsion layer containing a fragmentable electron donating compound of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein

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: A silver halide photographic material is disclosed, comprising at least one silver halide emulsion layer provided on a support, the emulsion layer comprising a silver halide emulsion containing at least two sensitizing dyes represented by the following general formula (I): 1

Abstract: A compound represented by the following formula (1) and a silver halide photographic material containing the compound: 1

Abstract: Compounds represented by formula (I) and silver halide photographic materials comprising these compounds: wherein Q1 represents a methine or polymethine group necessary for completing the compound as a methine dye; Z1 represents atoms necessary to complete a 5- or 6-membered nitrogen-containing heterocyclic ring, provided that Z1 may be condensed with a ring; L1 and L2 each represent a methine group; p1 represents 0 or 1; L represents a divalent linking group and Ar represents an aromatic group, provided that L or Ar contains at least one proton dissociative group as a substituent group or a part of the linkage or aromatic group and the proton dissociative group has a pKa value of from 3 to 12; M1 represents a counter ion for charge balance; and m1 represents a number of counter ions required for neutralizing charges on the molecule, and ranges from 0 to 10.

Abstract: A heat developable light-sensitive material comprises a support, a light-sensitive layer and a non-light-sensitive layer. The light-sensitive layer contains silver halide and a reducing agent. The non-light-sensitive layer contains a cyanine dye represented by the formula (I) or a salt thereof and a base precursor: in which R1 is hydrogen, an aliphatic group, an aromatic group, —NR21R24, —OR21 or —SR21, each of R21 and R24 independently is hydrogen, an aliphatic group or an aromatic group, or R21 and R24 are combined to form a nitrogen-containing heterocyclic ring; R2 is hydrogen, an aliphatic group or an aromatic group; R3 is an aliphatic group; L1 is a methine chain consisting of an odd number of methines; and each of Z1 and Z2 independently is an atomic group forming a five-membered or six-membered nitrogen-containing heterocyclic ring.

Abstract: A silver halide photographic light-sensitive material is described, comprising at least one compound represented by the following formula (I): wherein Z1 and Z2 each represents oxygen atom, sulfur atom, selenium atom, tellurium atom or a >NR group, R represents an alkyl group, an aryl group or a heterocyclic group, L1, L2 and L3 each represents a methine group, n1 represents 0 1, 2 or 3, V1, V2, V3, V4, W1, W2, W3 and W4 each represents hydrogen atom or a substituent, provided that two substituents may be combined with each other to form a condensed ring on the condition that assuming the sum total of &pgr; values of the substituents V1 to V4 is &pgr;v and the sum total of &pgr; values of the substituents W1 to W4 is &pgr;w, either one of &pgr;v and &pgr;w is 0.

Abstract: A heterocyclic compound corresponding to formula (I) 1

Abstract: The present invention provides a silver halide photographic material that is excellent in photographic speed as well as image graininess and exhibits low residual color even after rapid processing. The silver halide photographic material contains a compound represented by formula (I) and a compound represented by formula (II), as defined.

Abstract: A heat-developable photosensitive material comprises: a support; a photosensitive silver halide; a non-photosensitive organic silver salt; a reducing agent for a silver ion; a binder; and a compound having specified structure.

Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support having thereon at least on light-sensitive halide emulsion layer, wherein the emulsion layer contains a compound represented by formula (1).

Abstract: A photothermographic material is disclosed, comprising a support and a photosensitive layer containing an organic silver salt, a photosensitive silver halide and a binder, wherein the photosensitive layer or the support contains a dye represented by formula (1), and the photosensitive silver halide being spectrally sensitized with at least a sensitizing dye represented by formulas (2a) through (2d).

Abstract: Disclosed is a compound represented by the following formula (I): 1

Abstract: A silver halide photographic light-sensitive material is disclosed, comprising at least one silver halide emulsion layer, wherein the silver halide grain contained in said emulsion layer is silver chloroiodide or silver chloroiodobromide having a silver chloride content of 90 mol % or more and a silver iodide content of 0.01 to 1.

Abstract: Disclosed is a silver halide photographic material which comprises at least one methine dye represented by the following formula (I): 1

Abstract: The invention relates to a photographic element comprising a support and a silve halide emulsion layer wherein the silver halide emulsion contains at least one absorber dye and at least one sensitizing dye. The wavelength of maximum absorbance of said absorber dye and the wavelength of maximum sensitivity of the emulsion provided by the spectral sensitizing dye are substantially the same. The emulsion is chemically sensitized with a stable and water soluble AuI) complex. This provides manufacturing improvements, improved detail and sharpness, improved dodging and burning and lower cost without an unwanted increase in heat sensitivity.

Abstract: A Silver halide photographic material high in sensitivity and decreased in residual color is disclosed, which comprises at least one compound represented by the following formula (I): wherein Z1 represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, a carbon atom or a nitrogen atom; Q represents a group necessary for forming a methine dye; M1 represents a charge equilibrium counter ion; m1 represents the number necessary for neutralizing a charge of the molecule; Vp represents a group having a log P value lower than that of Cl; q1 represents 1, 2, 3 or 4; and R1 is represented by following: R1=(La)k1CONHSO2R11, R1=(Lb)k2SO2NHCOR12, R1=(Lc)k3CONHCOR13, R1=(Ld)k4SO2NHSO2R14 wherein R11, R12, R13 and R14 each represents an alkyl group, an aryl group, a heterocyclic group, an alkoxyl group, an aryloxy group, a heterocyclyloxy group or an amino group; La, Lb, Lc and Ld each represents a methylene group; and k1, k2, k3 a nd k4 each represents a

Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith at least two dye layers comprising (a) an inner dye layer adjacent to the silver halide grain and comprising at least one dye, Dye 1, that is capable of spectrally sensitizing silver halide and (b) an outer dye layer adjacent to the inner dye layer and comprising at least one dye, Dye 2, wherein Dye 2 is other than a cyanine dye, wherein the dye layers are held together by non-covalent forces; the outer dye layer adsorbs light at equal or higher energy than the inner dye layer; and the energy emission wavelength of the outer dye layer overlaps with the energy absorption wavelength of the inner dye layer.

Abstract: A silver halide photographic emulsion is disclosed, which comprises at least one dye or sensitizing dye having at least one organic counter ion; and also a silver halide photographic emulsion layer containing the above dye or sensitizing dye and a method of producing the above silver halide photographic emulsion are disclosed.

Abstract: A silver halide photographic emulsion comprising a methine dye compound having in a molecule thereof at least one atomic group in which at least two groups selected from the group consisting of groups represented by formulas (I) and (II) are adjacent to each other or adjacent to each other through an atom:

Abstract: A silver halide emulsion is disclosed, comprising silver halide grains of which 70% or more of the total projected area is occupied by tabular grains, said tabular grain having main surfaces of {111} face and a thickness of 0.04 &mgr;m or less and being joined with an epitaxial phase comprising silver halide containing 97 mol % or more of silver iodide.

Abstract: Disclosed is a compound represented by the following formula (I): wherein Z1 represents an atomic group necessary to form a 5- or 6-membered nitrogen-containing heterocyclic ring; Z2 represents an atomic group necessary to form a 5- or 6-membered heterocyclic ring, Z2 may further be substituted, or may be condensed with a hetero ring or a benzene ring; R1 represents a hydrogen atom, a halogen atom, a mercapto group, an alkyl group, an alkenyl group, an aryl group, an alkylthio group, an alkenylthio group, or an arylthio group; L1 and L2 each represents a methine group; p1 represents 0 or 1; V1 represents a substituent; and n represents 0, 1 or 2, and when n represents 2, a plurality of V1 may be the same or different.

Abstract: A silver halide photothermographic material is disclosed, comprising a support having thereon a light-sensitive layer and light-insensitive layer, wherein the light-sensitive layer or the light-insensitive layer comprises a heteroatom-containing macrocyclic compound, and the light-sensitive layer comprising a sensitizing dye exhibiting maximum sensitivity at a wavelength of 600 nm or more.

Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith a combination of two or more dyes wherein (b) (a) a dye having at least one substituent that has a negative charge is present, a dye having at least one substituent that has a positive charge is present, wherein at least one of the dyes is further substituted with at least one hydrogen bonding donor substituent. In a preferred embodiment, at least one of the dyes is substituted with at least two hydrogen bonding donor substituents. In another preferred embodiment a silver halide photographic material comprises at least one silver halide emulsion comprising silver halide grains having associated therewith a dye substituted with at least one guanidinium, amidinium, or imine of urea substituent.

Abstract: A silver halide photographic material comprises at least one silver halide emulsion comprising silver halide grains having associated therewith at least two dyes: (a) a first dye that has at least one anionic substituent and that is capable of spectrally sensitizing a silver halide emulsion; and (b) a second dye of formula II  wherein: R1 is a substituted or unsubstituted alkyl or aryl group; E3 represents the atoms necessary to complete a substituted or unsubstituted 5- or 6-membered heterocyclic nucleus; Ar1 represents an electron-withdrawing substituted aryl, or a substituted or unsubstituted electron-withdrawing heteroaryl group; L11 through L14 are substituted or unsubstituted methine groups; s is 0 or 1; G1 is an electron-withdrawing group; G2 is O or dicyanovinyl (C(CN)2); W1 is a counterion if necessary.

Abstract: A silver halide photographic emulsion which comprises at least one methine compound represented by the following formula (I): 1

Abstract: A heat developable light-sensitive material comprises a support, a light-sensitive layer and a non-light-sensitive layer. The light-sensitive layer contains silver halide and a reducing agent. The non-light-sensitive layer contains a cyanine dye represented by the formula (I) or a salt thereof and a base precursor: in which R1 is hydrogen, an aliphatic group, an aromatic group, —NR21R24, —OR21 or —SR21, each of R21 and R24 independently is hydrogen, an aliphatic group or an aromatic group, or R21 and R24 are combined to form a nitrogen-containing heterocyclic ring; R2 is hydrogen, an aliphatic group or an aromatic group; R3 is an aliphatic group; L1 is a methine chain consisting of an odd number of methines; and each of Z1 and Z2 independently is an atomic group forming a five-membered or six-membered nitrogen-containing heterocyclic ring.

Abstract: A photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula: wherein A is a silver halide adsorptive group that contains at least one atom of N, S, Se, or Te that promotes adsorption to silver halide, and Z is a light absorbing group including for example cyanine dyes, complex cyanine dyes, merocyanine dyes, complex merocyanine dyes, homopolar cyanine dyes, styryl dyes, oxonol dyes, hemioxonol dyes, and hemicyanine dyes, and XY is an fragmentable electron donor moiety in which X is an electron donor group and Y is a leaving group other than hydrogen, and wherein: 1) XY has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of XY undergoes a bond cleavage reaction to give the radical X• and the leaving fragment Y. In a preferred embodiment of the invention, the radical X• has an oxidation potential ≦−0.7 V.

Abstract: A photothermographic material is disclosed, comprising a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent a binder and a cross-linking agent; the photothermographic material further comprising a compound capable of generating a labile species other than a halogen atom upon exposure to ultraviolet radiation or visible radiation to deactivate the reducing agent.

Abstract: A color photographic silver halide material which contains at least one light-sensitive silver halide emulsion, and a cyanine dye of formula (I) wherein R1, R2, R3, R4, R5 and R6, independently of each other, each represent a substituent, with the proviso that at least one of the radicals R1, R2 and R3 represents a benzthienyl substituent, X represents O, S, Se, NR7, CH═CH or C(CH3)2, wherein R7 represents an alkyl radical which is optionally substituted, S1 and S2 independently of each other, represent alkyl, sulphoalkyl, carboxyalkyl, —(CH2)1—SO2—Y—SO2-alkyl, —(CH2)1—SO2—Y—CO-alkyl, —(CH2)1—CO—Y—SO2-alkyl, —(CH2)1—CO—Y—O-alkyl, —(CH2)1—NH—SO3⊖, —(CH2)1—N(alkyl)—SO3⊖ or —(CH2)1—N(Aryl)—SO3⊖ , with the proviso that l=1 to 6 and Y is NH or N—, n is 0, 1, 2 or 3, L1, L2 and L3 independently represent a

Abstract: A thermally developable photosensitive material of enhanced sensitivity, reduced variation in sensitivity following pre-exposure storage and improved silver image tone is disclosed, comprising a support having thereon an organic silver salt, a binder, a photosensitive silver halide, an infrared-sensitizing dye and a heteroatom containing macrocyclic compound.

Abstract: The present application provides cyanine dyes of the formula (1) in which R1, R2, R3, R4, R5, R6 mutually independently mean H, a substituent or R5 together with R6 or R4 together with R5 mean the remaining members to complete an optionally substituted fused benzo ring or naphtho ring system, providing that at least one of the substituents R1, R2 or R3 is a benzothienyl substituent, X denotes O, S, Se, CH=CH, C(CH3)2 or NR7 (R7 =optionally substituted alkyl), S1, S2 mutually independently mean alkyl, sulfoalkyl, carboxyalkyl, —(CH2)1—SO2—Y—SO2-alkyl, —(CH2)1—SO2—Y—CO-alkyl, —(CH2)1—CO—Y—SO2-alkyl, —(CH2)1NHSO−3, —(CH2)1N(alkyl)SO−3, —(CH2)1N(aryl)SO-−3, —(CH2)1—CO—Y—CO-alkyl, providing that 1 means 1 to 6 and Y means NH or N−, n means 3, 5 or 7, L denotes substituted or unsubstituted methine groups, which may be constituents of one or mo

Abstract: In a photothermographic material comprising an organic silver salt, a silver halide, and a reducing agent, a hydrazine compound of a special structure and a sensitizing dye of a special structure are contained. The photothermographic material shows high Dmax and ultrahigh contrast.

Abstract: The present application provides cyanine dyes of the formula (I) in which R1, R2, R3, R4, R5 and R6 mutually independently denote a substituent, providing that at least one of the residues R1, R2, R3 denotes an indolyl substituent, X denotes O, S, Se, NR9, CH═CH or C(CH3)2, wherein R9 denotes a optionally substituted alkyl residue, R7, R8 mutually independently denote alkyl, sulfoalkyl, carboxyalkyl, —(CH2)1—SO2−Y—SO2—alkyl, —(CH2)1—SO2—Y—CO—alkyl, —(CH2)1—CO—Y—SO2—alkyl, —(CH2)1—CO—Y—O—alkyl or —(CH2)1—NH—SO3&thgr;, —(CH2)1—N(alkyl)—SO3&thgr; or —(CH2)1—N(aryl)—SO3&thgr;, providing that l=1 to 6 and Y means NH or N−, n means 1, 3, 5, 7, L denotes a substituted or unsubstituted methine group, which may be a constituent of one or more carbocyclic rings, and M denotes a counterion optionally necess

Abstract: A thermally developable photosensitive material is disclosed. The thermally developable photosensitive material comprises at least one of dye represented by Formula I-a through I-d and at least one of compound represented by Formula 2. The chemical formula is described in the specification.