Abstract: A non-resonant two-photon absorbing material is provided, comprising a specified compound and exhibiting far stronger non-resonant two-photon absorption and two-photon emission than conventional materials.

Abstract: A silver halide photographic material comprising a support and at least one photosensitive silver halide emulsion layer, wherein the emulsion layer comprises a compound represented by the following formula (1): Dye1-&Parenopenst;L1&Parenopenst;Dye2)m1)m2.CIy  (1) wherein Dye1 represents a first chromophore; Dye2 represents a xanthene dye; L1 represents a linking group; m1 represents an integer of from 1 to 5; m2 represents an integer of from 1 to 5; CI represents an ion for neutralizing a charge; and y represents a number necessary for neutralizing the charge.

Abstract: A non-resonant two-photon absorbing material is provided, comprising a methine dye undergoing a non-resonant two-photon absorption, in which the methine dye is preferably a cyanine dye, a merocyanine dye or an oxonol dye, and a non-resonant two-photon absorbing material is provided, comprising a non-resonant two-photon absorbing compound undergoing non-resonant two-photon absorption in the intermolecular aggregation state.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): wherein R1 represents a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R2 represents an alkyl group, a cycloalkyl group, a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R3 represents a group capable of being substituted on the benzene ring, and m represents an integer from 0 to 4. This may be use as a light-sensitive material which can provide a stable color-image.

Abstract: To provide a silver halide photographic light-sensitive material having high sensitivity and having a desired spectral sensitivity distribution.

Abstract: A silver halide photographic material comprising a support and at least one photosensitive silver halide emulsion layer, wherein the emulsion layer comprises a compound represented by the following formula (1):

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at a least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): 1

Abstract: A compound represented by the following formula (1) and a silver halide photographic material containing the compound: wherein Dye 1 represents a first chromophore; Dye 2 represents a second chromophore; L1 represents a linking chain; R1 represents a dissociable group having pKa of 5 or less; m1 represents an integer of from 1 to 5; m2 represents an integer of from 1 to 5; and m3 represents an integer of from 1 to 4.

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

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

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 silver halide photographic material is disclosed, comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein said silver halide photographic material contains a compound by formula (IA), or which contains at least one hydroxamic acid compound having a bicyclo ring as a partial structure and represented by formula (IB).

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 represents a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R.sup.2 represents an alkyl group, a cycloalkyl group, a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R.sup.3 represents a group capable of being substituted on the benzene ring, and m represents an integer from 1 to 4. This may be use as a light-sensitive material which can provide a stable color-image.

Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein said silver halide photographic material contains a compound by formula (IA), or which contains at least one hydroxamic acid compound having a bicyclo ring as a partial structure and represented by formula (IB).

Abstract: A photoelectric conversion device has a layer of dye-sensitized nanoparticulate semiconductor and a hole transporting layer containing an organic hole transporting agent. The dye-sensitized photoelectric conversion device is fully durable. A solar cell comprising the photoelectric conversion device is also provided.

Abstract: The present invention provides a heat-developable light-sensitive material having a support and a light-sensitive layer provided on the support. The heat-developable light-sensitive material contains dyes which are decolorized through reaction with a decolorizing agent during a development process. The dyes are non-diffusible and at least a part of decolorized dyes resulting from the development process is non-diffusible. Also provided is an image forming method using the heat-developable light-sensitive material. The present method provides images having excellent sharpness within a short period of time.

Abstract: There is disclosed novel color-developing agents of the formula (I). There is also disclosed silver halide photographic light-sensitive materials and image-forming methods, using the color-developing agent. The color-developing agent is excellent in color-forming property, and the image obtained from the color-developing agent is good in hue. ##STR1## wherein R.sub.1 to R.sub.4 each represent a group of nonmetal atoms required to form, together with the carbon atom, a monocyclic 5-membered aromatic ring or a 5-membered aromatic ring condensed with another ring, with the proviso that at least two of R.sub.1 to R.sub.4 are nitrogen atoms; and Z represents an acyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group, a sulfamoyl group, an amidino group, or an imidoyl group.

Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein said silver halide photographic material contains a compound by formula (IA), or which contains at least one hydroxamic acid compound having a bicyclo ring as a partial structure and represented by formula (IB).

Abstract: A silver halide photographic material is disclosed, which comprises a support having thereon at least one light-sensitive silver halide emulsion layer; the silver halide photographic material contains at least one compound represented by the following formula (II), the variables of which are defined in the specification: ##STR1##

Abstract: There is disclosed novel color-developing agents of the formula (I-1), (I-2), (1-3), or (1-4). There is also disclosed silver halide photographic light-sensitive materials and image-forming methods, using the color-developing agent. ##STR1## wherein R.sup.1 represents a halogen atom or an aliphatic group substituted with at least one halogen atom; R.sup.2 represents a substituent; L represents --CONR.sup.4 --, --COO--, --CO--, --SO.sub.2 NR--, --C(.dbd.NR.sup.4)NR.sup.5 --, or --C(.dbd.NR.sup.4)O--; R.sup.3, R.sup.4, and R.sup.5 each independently represent a hydrogen atom, an aliphatic, aryl, or hererocyclic group; in formula (I-1), n is 1 or 2, m is 0 or 1, and the sum of n and m is 1 or 2; in formulae (I-2) to (I-4), n is 1 to 3, m is 0 to 2, and the sum of n and m is 1 to 3. R.sup.1 and R.sup.2, R.sup.1 and R.sup.1, and R.sup.2 and R.sup.2, respectively, do not bond together to form any ring. R.sup.