Abstract: A photothermographic material is described which comprises a support having provided on one surface thereof at least one kind of a light-sensitive silver halide, a light-insensitive organic silver salt, a reducing agent for silver ions, and a binder, wherein the photothermographic material comprises the surface active agent represented by the following formula (F): wherein Rf represents a perfluoroalkyl group, Rc represents an alkylene group, Z represents a group having an anionic group, a cationic group, a betaine-series group, or a nonionic polar group necessary for imparting a surface activity, n represents an integer of 0 or 1, and m represents an integer of 1, 2 or 3. The photothermographic material can remarkably prevent attaching of dust, etc., which become the case of forming white spots after heat development.

Abstract: The thermally developable photosensitive material of the present invention has a support and including on at least one surface of the support a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for thermal development, a binder and a compound represented by the following general formula (1): wherein R1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X represents a chalcogen atom; and Y represents an amino group, an N-alkylamino group, an N,N-dialkylamino group, an anilino group, a hydroxyl group, an alkoxy group, an aryloxy group, an acylamino group or a sulfonamide group, and wherein when Y represents an alkoxy group, an alkylamino group, a dialkylamino group, an acylamino group or a sulfonamide group, Y and R1 may be bonded to each other to form a 5- to 7-membered ring.

Abstract: A silver halide emulsion which exhibits superior latent image stability when subjected to subjected to digital exposure at a high intensity for a short time is disclosed, comprising silver halide gains containing at least 90 mol % chloride, 0.02 to 5.0 mol % bromide and 0 to 2.0 mol % iodide, based on silver and occluding at least one Group 8 metal compounds and at least one iridium compound, and the silver halide grains are subjected to selenium sensitization which is undergone in the presence of at least one of compounds represented by the following formulas and silver or gold sulfide grains. A preparation method of the emulsion is also disclosed.

Abstract: This invention relates to a method of spectrally sensitizing a silver halide emulsion comprising the following steps in the following order

Abstract: This invention relates to a silver halide photographic element comprising a support bearing a cyan dye image-forming unit comprised of 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, and 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 said photographic element has an ISO speed rating of 800 or greater and has an integrated RMS green granularity equal to or less than 11.2.

Abstract: A photothermographic material including, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder on at least one side of a support, wherein a content of silver iodide in the photosensitive silver halide is 5% by mole or more, the binder contains polymer latex in an amount of 60% by weight or more, and the reducing agent is a compound represented by the following general formula (R): 1

Abstract: This invention relates to a method of spectrally sensitizing a silver halide emulsion comprising the following steps in the following order

Abstract: The present invention provides a thermally developable photosensitive material including a support, the image-forming layer containing a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent, a binder and a compound represented by the following formula (I), wherein after the material is exposed and thermally developed at 121° C.

Abstract: An image forming method for forming an image by exposing a photothermographic material to a laser beam, the laser beam being a laser diode beam having a peak light-emission intensity at a wavelength of 350 nm to 450 nm. The photothermographic material comprises at least a non-photosensitive silver salt, a photosensitive silver halide, a binder and a reducing agent, wherein a silver iodide content of the photosensitive silver halide is 40% by mole or more.

Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.

Abstract: The present invention relates to a silver halide color photographic light-sensitive material wherein at least one of light-sensitive silver halide emulsion layers includes a silver halide emulsion having a silver chloride content of at least 95 mol % and a silver iodide content of 0.05 mol % to 0.75 mol % and/or a silver bromide content of 0.05 mol % to 4.

Abstract: The present invention provides a photothermographic material comprising a substrate, and a photosensitive silver halide, a non-photosensitive organic silver salt, reducing agents for thermal development and a binder which are provided on the substrate, wherein: the reducing agents for thermal development include a reducing agent which does not form a dye during thermal development and a reducing agent which forms a dye during thermal development; and the reducing agent which forms a dye has higher activity than that of the reducing agent which does not form a dye. It is preferable that the reducing agent which forms a dye at thermal development and has a specific chemical structure is contained in an amount of 40% by mol or less relative to a total amount of the reducing agents.

Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.

Abstract: A photothermographic material of the present invention has a support and an image-forming layer disposed thereon, and the image-forming layer contains a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder.

Abstract: A photothermographic material containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder on at least one surface of a support, wherein silver iodide is contained in the photosensitive silver halide in an amount of 40% to 100% by mole, and the reducing agent contains a compound represented by the following formula (R-1).

Abstract: A photothermographic material containing, on a substrate, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder in which the total silver iodide content of the photosensitive silver halide is 40 mol % or more and 100 mol % or less, and the coating amount of the photosensitive silver halide, in terms of an amount of silver, is 0.0005 g/m2 or more and 0.4 g/m2 or less, as well as an image forming method for the photothermographic material which comprises exposing the photothermographic material by using a semiconductor laser having an emission peak intensity at a wavelength of from 350 nm to 450 nm as a light source.

Abstract: A photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein a photographically useful compound is incorporated into at least one hydrophilic colloid layer in the form of an intercalation composition comprising a layered host material having molecules of the photographically useful compound inserted as guest molecules between the layers of the host material. The invention provide novels materials and a method of incorporating active chemistry compounds such as developers or development inhibitors directly into a photographic imaging element with improved stability and keeping response versus known methods for incorporating active chemistry compounds.

Abstract: Photothermographic materials prepared using aqueous formulations include silver halides that are chemically sensitized using certain tellurium-containing compounds. Such tellurium-containing chemical sensitizing compounds are generally provided in aqueous solution or in an aqueous solid particulate dispersion and can be represented by the following Structure I, II, or III: Te(L)m(X1)n  (II) Pd(X2)2[Te(R′)2]2  (III) wherein X represents the same or different COR, CSR, CNRRa, CR, PRRa, or P(OR)2 groups, R and Ra are independently alkyl, alkenyl, or aryl groups, L is a ligand derived from a neutral Lewis base, X1 and X2 independently represent a halo, OCN, SCN, S2CNRRa, S2COR, S2CSR S2P(OR)2, S2PRRa, SeCN, TeCN, CN, SR, OR, alkyl, aryl, N3, or O2CR group, R′ is an alkyl or aryl group, p is 2 or 4, m is 0, 1, 2, or 4, and n is 2 or 4 provided that when m is 0 or 2, n is 2 or 4, and when m is 1 or 4, n is 2.

Abstract: The present invention relates to a photothermographic material, having at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder on at least one surface of a support. The photosensitive silver halide contains at least two kinds of photosensitive silver halides having respective sensitivities different from each other for a light with the same exposure wavelength and a silver iodide content of the photosensitive silver halide is 5% by mole or more.

Abstract: A photothermographic material, comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, wherein a total silver iodide content of the photosensitive silver halide is 40% by mole or more and thermal development is started within 60 sec after exposure.

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 (a) the grain is composed of a tabular silver halide host grain having two mutually parallel main planes and aspect ratio of 2 or more, and a silver halide protrusion portion epitaxially junctioned on the surface of the host grain; (b) the silver bromide contents of both the host grain and the protrusion portion are 70 mol % or more; (c) the percentage of the silver amount in the protrusion is 12% or less of the silver amount in the host grain; and (d) the grain has a shallow electron-trapping zone.

Abstract: A method of processing, with a developer in which a solution physical development arises, a silver halide photosensitive material containing a compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof which belongs to the following types 1 to 4:

Abstract: Aqueous-based thermally sensitive emulsions and photothermographic imaging materials include photosensitive silver halide grains that are predominantly homogeneous and comprise at least 20 mol % iodide based on total silver in the grains. These materials provide desired Dmax and reduced image “print out”.

Abstract: Antistatic compositions include a fluorochemical that is a reaction product of Rf—CH2CH2—SO3H with an amine wherein Rf comprises 4 or more fully fluorinated carbon atoms. These antistatic compositions can be formulated in organic solvent-based conductive coating compositions, with or without hydrophobic binders, that can be used to form conductive layers in thermally developable materials including thermographic and photothermographic materials.

Abstract: The invention provides a heat developable photosensitive material including a substrate, and at least one constituent layer which contains a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for thermal developing and a binder. The material includes at least one reducing agent that does not form a dye at the time of thermal developing and at least one reducing forming a dye at the time of thermal developing, and the dye-forming reducing agent is more active than the reducing agent that does not form a dye at the time of thermal developing.

Abstract: The present invention provides the photothermographic material including a photosensitive silver halide, a reducing agent for reducing silver ions, a binder and a non-photosensitive organic silver salt, wherein the photosensitive silver halide has a silver iodide content ranging from 40 mol % to 100 mol %, and has a particle size ranging from 5 nm to 80 nm, and wherein the non-photosensitive organic silver salt is prepared in the presence of the photosensitive silver halide which has been preformed, such that the non-photosensitive organic silver salt includes the photosensitive silver halide.

Abstract: A photothermographic material is disclosed, comprising a support, an organic silver salt, a light-sensitive silver halide, a reducing agent and a contrast-increasing agent, wherein the photothermographic material further comprises a secondary or tertiary amino group-containing alkoxysilane compound and a polyethyleneimine. A light-shielding package of photothermographic material is also disclosed.

Abstract: A silver halide photographic emulsion that comprises silver halide grains. The emulsion was prepared in the presence of at least one halogen oxoacid salt represented by formula (I) below: M(XOn)m  (I) wherein M represents an alkali metal ion or alkaline-earth metal ion, X represents a halogen atom, n represents 2 or 3, and m represents 1 or 2. A silver halide photographic light-sensitive material that has at least one silver halide emulsion layer on a support. The material contains the above silver halide photographic emulsion.

Abstract: A photothermographic material that 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 radiation absorbing compounds that provide a total absorbance of greater than 0.6 and up to and including 3 in the thermally-developable imaging layer(s). These photothermographic materials exhibit reduced mottle without significant loss in sensitivity.

Abstract: The present invention relates to a silver halide color photographic light-sensitive material wherein at least one of light-sensitive silver halide emulsion layers includes a silver halide emulsion having a silver chloride content of at least 95 mol % and a silver iodide content of 0.05 mol % to 0.75 mol % and/or a silver bromide content of 0.05 mol % to 4.00 mol % and further at least one compound represented by the following formula (I): X—(L)n—Y  Formula (I) wherein X represents a group adsorptive to a silver halide, L represents a divalent connecting group comprising one of an atom and an atomic group including at least one of a carbon atom, a nitrogen atom, a sulfur atom and an oxygen atom, Y denotes a reducible group and n denotes an integer of 0 or 1.

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): [IrClnF6-n]2−M2+  (I) wherein n denotes 0 or an integer from 1 to 6 and M2+ denotes 1 or 2 cations with a total number of 2 positive charges, [Fe(CN)6]m−Mm+  (II) wherein m denotes 2 or 3 and Mm+ denotes 1 to 3 cations with a total number of m positive charges, wherein o denotes 0, 1 or 2 and R denotes an alkyl, aryl or aralkyl, is distinguished under scanning exposure and on analogue exposure by sharp contrast which is independent of exposure time and by a stable latent image.

Abstract: A photothermographic imaging material comprising a support having thereon a photosensitive layer, wherein the photosensitive layer has a silver coverage of 0.8 to 2.5 g/m2 and comprises a compound represented by Formula (A) or Formula (B): wherein each R3, R4 and R5 is independently an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, provided that R5 includes a silyl containing group, wherein Z2 represents OR22, X2, or OH; n2 is an integer of 1 to 3; each R21 and R22 is independently an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, provided that R21 contains at least one primary amino group or at least two selected from the group consisting of primary and secondary amino groups; and X is a chlorine atom or a bromine atom.

Abstract: A silver halide photosensitive material comprises at least one light sensitive silver halide emulsion layer on a support. The silver halide photosensitive material contains at least one compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, the one-electron oxidation product being capable of releasing further one or more electrons, and at least one reducing compound having a C/H value of 3 or less; and another reducing compound having a C/H value of more than 3, the C/H value representing a ratio of (the number of Group IV elements)/(the sum of Groups III, V, VI and VII elements).

Abstract: The present invention provides a photothermographic material including a support having disposed on one surface of the support, at least one image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, a development accelerator and a binder, and at least one protective layer on the identical surface, wherein 50% by mass or more of the binder contained in the image forming layer is a water soluble binder, and the reducing agent is contained in the form of a solid dispersion.

Abstract: The present invention relates to, a thermally developable photosensitive material containing a non-photosensitive organic silver salt, photosensitive silver halide and a reducing agent on at least one surface of a transparent substrate, wherein a fog density value immediately after thermal developing treatment is 0.20 or less, a value of b0* in the following equation (1) at a fog density portion satisfies −20≦b0* <−4, and a change in an image tone from immediately after thermal developing treatment to after a point when an amount of time has passed as a value of a color difference &Dgr;E as defined in the equation (1) is any one of (a) 1.2 or less at 9 months under an environment of 30° C. and 60% RH, (b) 1.2 or less at 3 months under an environment of 40° C. and 40% RH, or (c) 0.9 or less at 1 week under an environment of 45° C. and 40% RH.

Abstract: A silver salt photothermographic material exhibiting enhanced image quality and superior uniformity without causing uneven density is disclosed, comprising on a support a light-sensitive layer comprising a light-sensitive emulsion containing organic silver salt grains and light-sensitive silver halide grains, a reducing agent and a binder and a conductive layer, wherein the conductive layer contains at least one of compounds represented by the following general formulas: 1 (Rf2)—(A2)s LiO3S—(CF2)m—SO3Li MO3S—(CF2)t—SO3M L[O3S—(CF2)u—SO3]

Abstract: A thermographic recording element having at least one image forming layer contains an organic silver salt, a reducing agent, and optionally, a photosensitive silver halide. The element further contains a substituted alkene derivative of specific structure and preferably a specific hydrazine derivative. The element can be processed in a fully dry basis to produce images having high Dmax and gradation and free of black pepper.

Abstract: The invention relates to a photothermographic material, comprising a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder on a same surface of a support, wherein the non-photosensitive organic silver salt is the non-photosensitive organic silver salt in a dispersion that has been subjected to an annealing treatment at 30° C. or more.

Abstract: A silver halide photosensitive material comprises at least one light sensitive silver halide emulsion layer on a support. The silver halide photosensitive material contains at least one compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, the one-electron oxidation product being capable of releasing further one or more electrons, and at least one reducing compound having a C/H value of 3 or less, and another reducing compound having a C/H value of more than 3, the C/H value representing a ratio of (the number of Group IV elements)/(the sum of Groups III, V, VI and VII elements).

Abstract: A process of producing a solid dispersion of an organic compound comprising a step in which after solid dispersing an organic compound, a temperature is elevated stepwise to subject the dispersion to heat treatment.

Abstract: A silver halide photographic emulsion wherein a variation coefficient of an equivalent-circle diameter of all the silver halide grains is 40% or less, and 50% or more of the total projected area is occupied by tabular grains satisfying requirements (i) to (v): (i) silver iodobromide having (111) faces as principal surfaces; (ii) the equivalent-sphere diameter of 0.5 &mgr;m or less, a thickness of 0.20 &mgr;m or less, and an average aspect ratio of 3 or more; (iii) a silver iodide content of 2 mol % or more and 6 mol % or less; (iv) a multiple-structure having a quintuple structure or more in which a silver iodide distribution has at least two maximums from a center to an edge, the first maximum is in a range of 3 to 25% by a silver amount constituting grains, and the second maximum is in a range of 50 to 80%; and (v) ten or more of dislocation lines per grain are present at a fringe portion.

Abstract: The present application relates to a photothermographic material comprising, on a side of a support, (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol derivative having the specific structure as reducing compound, (d) a binder, (e) a coupler compound, and (f) a compound represented by Q1—NHNH—V6 wherein Q1 is a 5- to 7-membered unsaturated ring and V6 is a carbamoyl group, etc.

Abstract: A photothermographic material comprising: a substrate; and a photosensitive silver halide, anon-photosensitive organic silver salt, a reducing agent and a binder, in a same region defined by the substrate, wherein the photothermographic material further comprises a fluorine compound which comprises at least one fluoroalkyl group having 2 or more of carbon atoms and not more than 13 of fluorine atoms and at least one of anionic and nonionic hydrophilic groups, and 40 to 98% by mol of the non-photosensitive organic silver salts are silver behenate.

Abstract: A silver halide photosensitive material containing a compound selected from Types 1-4 below which is capable of undergoing a one-electron oxidation to form a one-electron oxidation product (OEOP), and a reducing compound (Type 1) the OEOP is capable of releasing further two or more electrons accompanying a subsequent bond cleavage reaction, (Type 2) the OEOP is capable of releasing further one electron accompanying a subsequent bond cleavage reaction, and the compound having, in its molecule, two or more groups adsorptive to silver halide, (Type 3) the OEOP is capable of releasing further one or more electrons after going through a subsequent bond forming process, and (Type 4) the OEOP is capable of releasing further one or more electrons after going through a subsequent intramolecular ring cleavage reaction.

Abstract: A process for producing a lightsensitive silver halide emulsion comprising silver halide grains, wherein the emulsion contains tabular silver halide grains in an amount of at least 50% of the total projected area of all the silver halide grains, the average iodine content of all the silver halide grains is at least 2 mol %, and the tabular silver halide grains have at least 10 dislocation lines per grain, wherein the process comprises (step 1) set fourth below, and the process comprises a step of performing chemical sensitization so that a selenium sensitizer is added in an amount of 2.

Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating compound at least one heterocyclic cyan dye-forming coupler of a specified formula and an aromatic stabilizer of a particular formula. The combination provides improved image stability.

Abstract: A silver halide photographic material is disclosed, comprising a support having provided thereon at least a silver halide emulsion layer, which contains at least one compound represented by the following formula (I), and has a characteristic curve of gamma value being 5.0 or more in optical density of from 0.3 to 3.0 on the characteristic curve shown on the orthogonal axis of coordinates having equal unit length expressed by logarithmic exposure amount (x axis) and optical density (y axis): (X)l—(L)m—(A—B)n  (I) wherein X represents a silver halide-adsorptive group having at least one of N, S, P, Se and Te atom, or a light absorptive group; L represents a divalent linking group having at least one of C, N, S and O atom; A represents an electron donative group; B represents a releasing group or a hydrogen atom, which forms radical A. by releasing or deproton after oxidation; l and m each represents an integer of from 0 to 3; and n represents 1 or 2.

Abstract: A solid dispersion of a compound for use in photography, the dispersion comprising a dispersoid including an organic compound and a dispersion medium, wherein the average settling velocity (v25) of the dispersoid at 25° C., which velocity is represented by the following equation (1), is no more than 5.

Abstract: The present invention provides a photothermographic material having an image-forming layer that contains a non-photosensitive silver salt of an organic acid, a photosensitive silver halide, a specific nucleating agent, a compound represented by the formula (1) and a binder on at least one side of a support: wherein P represents an oxygen atom, a sulfur atom or NH, Q represents an oxygen atom or a sulfur atom, Y represents OH, OM (M represents a counter ion) or NH2, L represents a divalent bridging group, and Z represents an alkyl group, an aryl group or a heterocyclic group.

Abstract: In accordance with one embodiment of the invention, a photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein sequestered silver ions are incorporated into at least one hydrophilic colloid layer in the form of a silver ion containing material which sequesters silver ions prior to photographic processing and releases silver ions upon exposure to photographic processing solutions. Method for preparing and processing such photographic element are also described. In accordance with particular embodiments of the invention, the silver ion containing material comprises a silver ion-exchanged zeolite material or an intercalation composition comprising a layered host material having silver ions inserted as guest ions between the layers of the host material.