Abstract: A silver halide color photographic lightsensitive material includes at least one emulsion layer on a support. At least one of the emulsion layers contains a coupler represented by formula (1) below and a coupler represented by formula (2) below at a molar ratio of 1:9 to 9:1. In formulas (1) and (2), each of R1, R2, R3, and R4 independently represents a hydrogen atom or a substituent. Each of X1 and X2 represents a hydrogen atom or a group capable splitting off by coupling with the oxidized form of a developing agent. At least one of X1 and X2 is a hydrogen atom.

Abstract: An azomethine compound is represented by the formula (I).

Abstract: A silver halide color reversal photosensitive material comprising at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one red-sensitive emulsion layer on a transparent support, and capable of forming a color image when the photosensitive material was subjected to color development in the presence of an aromatic primary amine color developing agent after the photosensitive material was subjected to first development of black-and-white development, wherein the silver halide content in the photosensitive material before the first development is 2.5 to 6.0 g in terms of silver per m2 of the photosensitive material, the silver halide content in an unexposed portion of the photosensitive material immediately before the color development is 1.0 to 2.5 g in terms of silver per m2 of the photosensitive material, and the maximum density of each of cyan, magenta, and yellow in the color image after the color development is 3.0 or more.

Abstract: A silver halide color photographic lightsensitive material comprising at least one layer on a support, wherein the at least one layer contains a coupler represented by formula (I) below 1

Abstract: A silver halide photographic material is described, which contains the compound represented by the following formula (I): wherein R1 represents a substituted or unsubstituted alkylene group having from 1 to 5 carbon atoms; X represents a water-soluble group; and R represents a substituted or unsubstituted alkyl group having the sum total of from 14 to 40 carbon atoms, an alkenyl group, an aryl group, an alkoxyl group, —NR3R4 (R3 and R4 each independently represents an alkyl group having from I to 40 carbon atoms, a hydrogen atom, or an aryl group), a bicycloalkyl group, a bicycloalkenyl group, a cycloalkyl group, a cycloalkenyl group or a heterocyclic group, provided that when X represents a quaternary ammonium salt structure, R2 does not represent an alkyl group having from 14 to 17 carbon atoms.

Abstract: A silver halide color photosensitive material comprising each at least one blue-, green-, and red-sensitive emulsion layer on a support.

Abstract: A silver halide color photographic lightsensitive material contains a coupler represented by formula (I) below in at least one layer on a support (in this formula, X represents a hydrogen atom or a group which can split off by a coupling reaction with an oxidized form of an aromatic primary amine color developing agent, each of R1 and R2 represents an electron-attracting group having a Hammett's substituent constant &sgr;p value of 0.20 or more, and the sum of the &sgr;p values of R1 and R2 is 0.65 or more, and each of G1 and G2 represents a nitrogen atom or a substituent). A pyrrolotriazble compound represented by formula (I) below is also provided.

Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising, on a support, a unit blue-sensitive layer including at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, a unit green-sensitive layer including at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and a unit red-sensitive layer including at least one red-sensitive silver halide emulsion layer containing a cyan coupler, at least one of the unit blue-, green-, and red-sensitive layers comprising not less than two color-sensitive layers differing in sensitivity, of which a highest-sensitivity layer being positioned farthest from the support, wherein the light-sensitive material has at least one layer containing a high-boiling organic solvent, at least 50% by weight of which is occupied by a high-boiling organic solvent having a viscosity of not less than 300 mPas at 25° C.

Abstract: A silver halide color photosensitive material comprising each at least one blue-, green-, and red-sensitive emulsion layer on a support.

Abstract: A silver halide photosensitive material in which a noncoloring compound is used as a high-boiling-point organic solvent for dissolving components of the silver halide photosensitive material that have low solubility in water. Preferably, the silver halide photosensitive material has a hydrophilic colloid layer containing a hydrophilic polymer and the noncoloring compound is contained in the hydrophilic colloid layer. The silver halide photosensitive material produces durable colored images, reduces the formation of stains, improves storability, alleviates fogging and soft-toning of emulsion during storage, inhibits migration of a dispersion medium, is inexpensive, and is produced from materials that cause little damage to the environment.

Abstract: An azomethine compound is represented by the formula (I). wherein and R1, L1, L2, R3 and R4 have 20 to 50 carbon atoms in total.

Abstract: A silver halide color photographic lightsensitive material comprising at least one photosensitive silver halide emulsion layer on a support, wherein the emulsion layer contains a magenta coupler represented by formula (M-1) below: 1

Abstract: A silver halide color photosensitive material having at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one red-sensitive emulsion layer on a support, wherein the red-sensitive emulsion layer has the maximum value of sensitivity in a wavelength region of 580 nm to 650 nm, and the green-sensitive emulsion layer contains at least one magenta coupler represented by formula (MC-1) below: wherein the substituent are defined herein the specification.

Abstract: A silver halide color photographic lightsensitive material comprises a support and a silver halide emulsion layer.

Abstract: A silver halide color photographic light-sensitive material having at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one red-sensitive emulsion layer on a transparent support, wherein the transparent support is a plastic support having two surfaces undercoated with an undercoat solution containing at least one compound selected from the group consisting of a water-miscible organic solvent except for alcohols, a substituted phenol having a molecular weight of 200 or less, and a substituted acetic acid in which at least one hydrogen atom on a methyl group of acetic acid is substituted with a halogen atom, and at least one photosensitive emulsion layer contains a specific coupler.

Abstract: A silver halide color photographic light-sensitive material has a red-, green-, and blue-sensitive emulsion layer in this order from the side closest to a support.

Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, said at least one emulsion layer containing a magenta coupler represented by formula (M-1): 1

Abstract: A package structure for a piezoelectric resonator includes a base which has a shape of flat box and made of an insulating material, and a thin lid bonded to the upper side of the base. A tuning fork type quartz crystal resonator piece is mounted at its one end, that is its base end, on electrode pads provided on the mounting surface in a cantilever manner using conductive adhesive so that it is parallel to the mounting surface, and hermetically sealed in a package with the lid engaged therewith. Either one or both of the mounting surface of the base and the inner surface of the lid has a recess formed at the location adjacent to the free end of a tuning fork type quartz crystal resonator piece so that the free end does not touch the inside surfaces of the packages when the quartz crystal resonator piece is largely dislocated on external impact.

Abstract: A silver halide photographic lightsensitive material comprises at least one silver halide emulsion layer on a support and contains at least one noncolor-forming compound represented by the following general formula (1) wherein each of R1, R2 and R3 independently represents an alkyl group, an aryl group, a halogen atom, a heterocyclic group, a cyano group, a hydroxy group, a nitro group, a carboxyl group, a sulfo group, an amino group, an alkoxy group, an aryloxy group, an acylamino group, an alkylamino group, an anilino group, an ureido group, an alkylthio group, an arylthio group, an alkoxycarbonylamino group, a sulfonamido group, a carbamoyl group, a sulfamoyl group, a sulfonyl group, an alkoxycarbonyl group, a heterocyclic oxy group, an azo group, an acyloxy group, a carbamoyloxy group, a silyloxy group, an aryloxycarbonylamino group, an imido group, a sulfinyl group, an aryloxycarbonyl group or an acyl group, each of k and n independently represents an integer of 0 to 5, and m represents

Abstract: There is disclosed a silver halide color photographic light-sensitive material that is improved in such aspects as fastness of dye images, color reproduction, cyan stain, processing cyan color contamination, and the like, by the combination use of a phenidone compound having a specific structure as in the following general formula (VIII) and a pyrrolotriazole cyan coupler. The phenidone compound (VIII) can be produced industrially in low cost, by reacting an &agr;-alkyl or alkenyl acrylate with a compound represented by the following general formula (VII): wherein, R4, R5, R6, R7, R8, and R9, each represent a hydrogen atom, an alkyl group, or the like; R2a represents an alkyl group having 6 to 30 carbon atoms, or the like.