Fogging Or Nucleating Agent Containing Patents (Class 430/598)
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Patent number: 7741017Abstract: 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.Type: GrantFiled: June 3, 2008Date of Patent: June 22, 2010Assignee: FUJIFILM CorporationInventors: Atsushi Matsunaga, Tadashi Inaba, Shinichi Ichikawa
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Patent number: 7482113Abstract: Incorporating a combination of a trisphenol reducing agent (developer) and a substituted olefinic co-developer having a phosphonium cation in photothermographic materials improves image tone in resulting images.Type: GrantFiled: December 18, 2006Date of Patent: January 27, 2009Assignee: Carestream Health, Inc.Inventors: Sharon M. Simpson, Kumars Sakizadeh
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Patent number: 7358038Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, as well as an image forming method. The black and white photothermographic material is characterized in that 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having a (111) face as a major face; the tabular grains have at least 2 parallel twin crystal planes in a grain; and a variation coefficient of a distribution of distances between closest twin crystal planes is 20% or less. Also provided is an image forming method that includes image exposure using fluorescent intensifying screens and thermal development.Type: GrantFiled: January 30, 2006Date of Patent: April 15, 2008Assignee: FUJIFILM CorporationInventors: Kazutaka Takahashi, Takeshi Funakubo, Kiyoteru Miyake
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Patent number: 7303851Abstract: Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.Type: GrantFiled: September 29, 2003Date of Patent: December 4, 2007Assignee: Fujifilm CorporationInventors: Mitsunori Hirano, Kunio Ishigaki, Tokuju Oikawa
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Patent number: 7303863Abstract: A silver halide emulsion, which is chemically sensitized by a compound of formula (1): wherein Ch represents a sulfur, selenium, or tellurium atom; X1 represents NR1 or N+(R2)R3Y?; R1 represents a hydrogen atom or a substituent; R2 and R3 each represent an alkyl group or another substituent; Y? represents an anionic ion; X2 represents OR4, N(R5)R6, or another substituent; R4 to R6 each represent a hydrogen atom or a substituent; and E is a group selected from groups represented by formula (2) to (5): wherein, in formulas (2) to (5), Z represents a hydrogen atom or a substituent; A1 and A2 each represent an oxygen atom, etc.; and R10 to R16 each represent a hydrogen atom or a substituent; W represents a substituent; n is an integer from 0 to 4; L represents a divalent linking group; and EWG represents an electron withdrawing group.Type: GrantFiled: February 17, 2006Date of Patent: December 4, 2007Assignee: FUJIFILM CorporationInventors: Hiroyuki Suzuki, Toshihiro Kariya
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Patent number: 7264920Abstract: A photothermographic material having, on both sides of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, and an image forming method utilizing the same, characterized in that the image forming layer on a first side has an infectious development property, and the image forming layer on the other side does not have an infectious development property or has an infectious development property that is smaller than that of the image forming layer on the first side. The invention provides a double-sided type photothermographic material having improved photographic properties and an image forming method utilizing the same.Type: GrantFiled: February 28, 2005Date of Patent: September 4, 2007Assignee: Fujifilm CorporationInventors: Tomoyuki Ohzeki, Fumito Nariyuki
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Patent number: 7244550Abstract: A silver halide color photographic photosensitive material having, on a support, at least one layer of a blue sensitive emulsion layer unit containing a yellow color forming coupler, a green sensitive emulsion layer unit containing a magenta color forming coupler, and a red sensitive emulsion layer unit containing a cyan color forming coupler, wherein 70% or more of the projection area of the entire silver halide grains has at least one layer of a silver halide photographic emulsion layer containing silver halide grains satisfying the following (a) to (c), and (1) the photosensitive material contains at least one inter-image effect providing layer, or (2) the photosensitive material contains a compound represented by the following Formula (I): (a) the material comprises a tabular silver halide host grain with an aspect ratio of 5 or more having two principal surfaces parallel with each other and a protrusion portion of silver halide epitaxially joined onto the surface of the tabular silver halide host grain,Type: GrantFiled: September 30, 2005Date of Patent: July 17, 2007Assignee: Fujifilm CorporationInventors: Hiroshi Fukuzawa, Yutaka Maeno, Kazumi Nii
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Patent number: 7241561Abstract: Bis phenol reducing agents incorporating bicyclic and tricyclic substituents ortho to the hydroxyl groups on the aromatic rings have been found to provide photothermographic materials with improved silver efficiency and stability without significant loss in sensitometric properties.Type: GrantFiled: February 10, 2006Date of Patent: July 10, 2007Assignee: Carestream Health, Inc.Inventors: Doreen C. Lynch, William D. Ramsden, Andrea L. Hansen, Stacy M. Ulrich
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Patent number: 7229750Abstract: A silver halide emulsion chemically sensitized by a compound of formula (1), (6-1), (6-2) or (7); and a silver halide photographic light-sensitive material containing the silver halide emulsion: Formula (1) E1-Ch-E2 Formula (6-1) W1 . . . AuX2m Formula (6-2) [W1 . . . Au . . . W2]X2m Formula (7) E5-Ch-Au . . . (L2)1 wherein Ch is a sulfur, selenium or tellurium atom; E1, E2, and E5 each are, for example, a specific methylene group having a substituent; Au is a monovalent or trivalent gold ion; W1 and W2 each are a specific chalcogen compound; X2 is a monovalent anion; m is 1, 2 or 3; L2 is a compound that can coordinate with gold through a nitrogen, sulfur, selenium, tellurium or phosphorous atom; and l is 0, 1, 2 or 3.Type: GrantFiled: August 26, 2004Date of Patent: June 12, 2007Assignee: Fujifilm CorporationInventors: Hiroyuki Suzuki, Masami Sakurada, Toshihiro Kariya
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Patent number: 7189502Abstract: A radiographic material containing tabular silver halide grains also includes an amido compound as an antifoggant precursor that can slowly release an antifoggant over time. These compounds are present in reactive association with the silver halide in tabular silver halide emulsion layers, and are present in an amount of at least 0.5 mmol/mol of silver. The radiographic materials are protected from fog during storage particularly in high temperature environments.Type: GrantFiled: October 3, 2005Date of Patent: March 13, 2007Assignee: Eastman Kodak CompanyInventors: Robert E. Dickerson, George J. Burgmaier, Steven P. Szatynski, Stephen A. Hershey
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Patent number: 7144694Abstract: A photothermographic imaging material including a support; an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support; and a cyan coloring leuco dye.Type: GrantFiled: October 28, 2005Date of Patent: December 5, 2006Assignee: Konica Minolta Holdings, Inc.Inventors: Hiroshi Kashiwagi, Narito Goto
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Patent number: 7129031Abstract: A green-sensitized black-and-white silver halide negative working photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains, further comprising in said emulsion layer or in a layer adjacent thereto, a heteroatomic sulfinic acid compound, a disulfide compound or a combination thereof, wherein each of said compounds has a solubilizing group having a pKa-value of 10 or less.Type: GrantFiled: June 18, 2004Date of Patent: October 31, 2006Assignee: Agfa-GevaertInventors: Johan Loccufier, Dirk Bollen
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Patent number: 7115359Abstract: A photothermographic material having a support provided on at least one side of the support light-sensitive silver halide particles, an organic silver salt and a reducing agent, as well as a leuco dye of a specific structure and a compound of a specific structure.Type: GrantFiled: July 15, 2004Date of Patent: October 3, 2006Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Yasushi Usagawa, Takeshi Habu
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Patent number: 7112398Abstract: 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.Type: GrantFiled: January 9, 2004Date of Patent: September 26, 2006Assignee: Eastman Kodak CompanyInventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
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Patent number: 7018790Abstract: A photothermographic imaging material including a support; an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support; and a cyan coloring leuco dye.Type: GrantFiled: December 2, 2003Date of Patent: March 28, 2006Assignee: Konica Minolta Holdings, Inc.Inventors: Hiroshi Kashiwagi, Narito Goto
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Patent number: 7005251Abstract: A silver salt photothermographic dry imaging material including non-photosensitive aliphatic carboxylic acid silver salts; a photosensitive emulsion containing photosensitive silver halide grains; a silver ion reducing agent; a binder; and a cyan coloring leuco dye. A percentage of the photosensitive silver halide grains having a mean particle size of 0.01 or more ?m and 0.04 ?m or less is 5% or more by mass and 50% or less by mass of total photosensitive silver halide grains by conversion into a silver amount.Type: GrantFiled: November 20, 2003Date of Patent: February 28, 2006Assignee: Konica Minolta Holdings, Inc.Inventors: Hiroshi Kashiwagi, Narito Goto
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Patent number: 6924089Abstract: An object of the present invention is to provide a novel heat-developable photosensitive material which hardly exerts an influence on the image color tone and exhibits high sensitivity. Disclosed is a heat-developable photosensitive material comprises, on the same surface of a substrate, at least (a) photosensitive silver halide, (b) a reducible silver salt, (c) a compound represented by the general formula (5), (d) a binder, (e) a compound represented by the general formula (6) or (7), and (f) a compound represented by the general formula (3).Type: GrantFiled: August 1, 2002Date of Patent: August 2, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Toyohisa Oya, Hirokazu Kyota, Kouta Fukui
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Patent number: 6913876Abstract: 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 the photothermographic material is also disclosed.Type: GrantFiled: July 24, 2003Date of Patent: July 5, 2005Assignee: Konica CorporationInventor: Yasunobu Kobayashi
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Patent number: 6824962Abstract: Disclosed is a photothermographic material containing at least a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on one surface of a support, wherein the material contains a compound producing imagewise a chemical species that can form development initiation points on and in the vicinity of the non-photosensitive silver salt of an organic acid or the like and an organic gold compound and the photosensitive silver halide has a mean grain size of 0.12 &mgr;m or less. This photothermographic material shows high sensitivity, low fog, high Dmax (maximum density), little increase of fog during storage and low temperature and humidity dependency during development.Type: GrantFiled: January 29, 2002Date of Patent: November 30, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Tokuju Oikawa
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Patent number: 6815127Abstract: A method of electronic processing of an imagewise exposed dispersed particle photoconductive material imaging element employing pulsed radiation and radio frequency photoconductivity apparatus having a sample capacitor with a gap is described, comprising the steps of: a) placing the imagewise exposed photoconductive material imaging element in an electromagnetic field adjacent the sample capacitor; b) scanning the element through the gap in the sample capacitor with a pulsed, focused beam of radiation; c) directly measuring the photoelectron response of the element and recording the resulting signals from the radio frequency photoconductivity apparatus; and d) advancing the element past the capacitor and repeating steps b) and c); wherein the photoconductive material imaging element comprises photoconductive particles which contain deep electron trapping agents which in an unfilled state effectively decrease the photoconductivity of the photoconductor particles, and wherein imagewise exposure of the photocondType: GrantFiled: November 15, 2002Date of Patent: November 9, 2004Assignee: Eastman Kodak CompanyInventors: Lillian M. Kellogg, Joe E. Maskasky, Dale E. Hamilton
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Patent number: 6800430Abstract: A photothermographic material comprising a photosensitive silver halide, a reducible silver salt, a phenolic reducing agent, a binder and a compound represented by the following formula on the same surface of a support: wherein X1 is a substituent, X2 to X4 are a hydrogen atom or a substituent, and R1 is an alkyl group etc. The photothermographic material shows high sensitivity, high Dmax and low fog and can provide images suitable for use in photomechanical process.Type: GrantFiled: March 29, 2002Date of Patent: October 5, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Hirokazu Kyota, Toshihide Ezoe, Minoru Sakai, Toyohisa Oya
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Patent number: 6800431Abstract: There is disclosed photothermographic material exhibiting superior photographic performance and having improved latitude for variation in thermal developing conditions, comprising on a support an organic silver salt, light-sensitive silver halide and a reducing agent for silver ions, wherein the reducing agent is represented by the following formula in which R1 through R4, L1, X1, X2 n and m have the meaning stated in the specification.Type: GrantFiled: April 15, 2003Date of Patent: October 5, 2004Assignee: Konica CorporationInventors: Norio Miura, Ryohei Iwamoto, Kazuaki Nakamura, Hiroyuki Yasukawa, Kiyoshi Fukusaka
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Patent number: 6787299Abstract: A silver salt photothermographic imaging material is disclosed, comprising a light-sensitive aliphatic acid silver salt, a light-sensitive emulsion containing light-sensitive halide grains, a reducing agent for silver ions, a binder and a cross-linking agent, wherein the cross-linking agent is an aromatic polyisocyanate compound and the photothermographic material further comprises a compound selected from compounds represented by the following formulas.Type: GrantFiled: January 8, 2003Date of Patent: September 7, 2004Assignee: Konica CorporationInventors: Hirobumi Yamashita, Toshihisa Takeyama
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Patent number: 6783925Abstract: A thermally processed image forming material containing elsewhere on a support a reducing agent, a binder and non-photosensitive fatty silver salt grains was disclosed, in which (1) the non-photosensitive fatty acid silver salt grains are prepared by mixing and reacting a silver ion-containing solution, the solvent of which being water or a mixture of water and an organic solvent, with a solution of a fatty acid alkali metal salt, the solvent of which being water, an organic solvent, or a mixture of water and an organic solvent, in a closed mixing means, or (2) the non-photosensitive fatty acid silver salt grains are prepared by micro-dispersing the reaction mixture at an operating pressure of 1,800 kg/cm2 or above using a ultrahigh pressure dispersion apparatus. Such thermally processed image forming material is excellent in the coated surface quality, and can afford an image which is low in fog and high in Dmax (maximum density).Type: GrantFiled: July 14, 2000Date of Patent: August 31, 2004Assignee: Fuji Photo Film Co., LTDInventor: Shoji Yasuda
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Patent number: 6780578Abstract: 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.Type: GrantFiled: March 25, 2003Date of Patent: August 24, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhiro Yoshioka, Keiichi Suzuki
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Patent number: 6764816Abstract: 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.Type: GrantFiled: March 22, 2002Date of Patent: July 20, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Tomoyuki Ohzeki
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Patent number: 6759187Abstract: 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.Type: GrantFiled: July 11, 2000Date of Patent: July 6, 2004Assignee: Eastman Kodak CompanyInventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
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Patent number: 6756192Abstract: 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.Type: GrantFiled: December 30, 1999Date of Patent: June 29, 2004Assignee: Eastman Kodak CompanyInventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
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Patent number: 6753121Abstract: A photoconductive material imaging element is described comprising a support and a silver halide emulsion imaging layer comprising silver halide grains which have not been chemically sensitized to optimize formation of latent image Agno, centers upon imagewise exposure and which are doped with at least 500 deep electron trapping agent dopant centers per grain. In accordance with a preferred embodiment, the photoconductive material imaging element includes a planar support and the non-chemically sensitized, deep electron trapping agent doped silver halide grains comprise tabular grains, preferably with an average grain size equivalent circular diameter of greater than 2 &mgr;m, with the long dimensions of the tabular grains primarily oriented parallel to the plane of the support.Type: GrantFiled: November 15, 2002Date of Patent: June 22, 2004Assignee: Eastman Kodak CompanyInventors: Lillian M. Kellogg, Joe E. Maskasky, Dale E. Hamilton
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Publication number: 20040106074Abstract: A silver salt photothermographic dry imaging material including non-photosensitive aliphatic carboxylic acid silver salts; a photosensitive emulsion containing photosensitive silver halide grains; a silver ion reducing agent; a binder; and a cyan coloring leuco dye. A percentage of the photosensitive silver halide grains having a mean particle size of 0.01 or more &mgr;m and 0.04 &mgr;m or less is 5% or more by mass and 50% or less by mass of total photosensitive silver halide grains by conversion into a silver amount.Type: ApplicationFiled: November 20, 2003Publication date: June 3, 2004Applicant: Konica Minolta Holdings, Inc.Inventors: Hiroshi Kashiwagi, Narito Goto
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Publication number: 20040101794Abstract: A photothermographic imaging material having a support; a photosensitive layer containing photosensitive silver halide particles on one face of the support; and a non-photosensitive layer provided on a side of the support where the photosensitive layer is provided. At least one of the photosensitive layer and the non-photosensitive layer contains an organic silver salt, a reducing agent, a compound represented by the Formula (1) and a compound represented by the Formula (2a).Type: ApplicationFiled: October 15, 2003Publication date: May 27, 2004Applicant: Konica Minolta Holdings, Inc.Inventors: Yasushi Usagawa, Narito Goto, Takeshi Habu
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Publication number: 20040096786Abstract: 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.Type: ApplicationFiled: December 21, 2001Publication date: May 20, 2004Applicant: Eastman Kodak CompanyInventors: Joseph F. Bringley, Krishnamohan Sharma, Kenneth J. Lushington
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Patent number: 6689552Abstract: 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.Type: GrantFiled: November 5, 2001Date of Patent: February 10, 2004Assignee: Agfa-GevaertInventors: Cuong Ly, Edgar Draber, Matthias Feigl, Günter Helling, Thomas Kaluschke, Michael Missfeldt, Maria Nietgen, Heinz-Horst Teitscheid, Ralf Weimann, Heinz Wiesen
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Publication number: 20040018458Abstract: 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.Type: ApplicationFiled: May 15, 2003Publication date: January 29, 2004Inventor: Hajime Nakagawa
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Publication number: 20040005511Abstract: The present invention relates to an ultrahigh contrast photographic material comprising a support bearing a silver halide emulsion layer, containing at least one hydrazide nucleating agent in the emulsion layer and/or a hydrophilic colloid layer, wherein the nucleating agent comprises 2 to 4 hydrazide moieties which are linked directly to one another or to one another by a linking group. The material optionally contains a booster compound in the emulsion layer or hydrophilic colloid layer to enhance the ultrahigh contrast and to promote activity, or a booster compound may be present in the developer solution.Type: ApplicationFiled: June 19, 2003Publication date: January 8, 2004Applicant: Eastman Kodak CompanyInventors: John D. Goddard, Llewellyn J. Leyshon
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Patent number: 6673508Abstract: A planographic printing plate material and a method of preparing a planographic printing plate are disclosed, the planographic printing plate material comprising a support and provided thereon, one or more structural layers containing light sensitive silver halide grains, organic silver salt grains, a reducing agent, a contrast-increasing agent and a physical developing nucleus.Type: GrantFiled: March 12, 2002Date of Patent: January 6, 2004Assignee: Konica CorporationInventor: Takeshi Sampei
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Patent number: 6649329Abstract: 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.Type: GrantFiled: August 3, 2001Date of Patent: November 18, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Toyohisa Oya, Kazunobu Katoh
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Patent number: 6627375Abstract: 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.Type: GrantFiled: December 21, 2001Date of Patent: September 30, 2003Assignee: Fuji Photo Film Co., Ltd.Inventor: Shoji Yasuda
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Patent number: 6610469Abstract: 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.Type: GrantFiled: January 16, 2002Date of Patent: August 26, 2003Assignee: Fuji Photo Film, Co., Ltd.Inventor: Makoto Ishihara
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Publication number: 20030129549Abstract: A direct positive silver halide photographic light-sensitive material is used for forming a light-absorbing layer of a lenticular lens sheet that includes a film-form substrate and a plurality of light input lenses provided on a light input side of the substrate, the light absorbing layer (black stripes) being provided on a light output side of the substrate in a region other than a condensing region of each of the light input lenses, the silver halide photographic light-sensitive material including a support, and at least one light-sensitive layer having light-sensitive silver halide grains with a grain size of 1 &mgr;m or less at a silver coat weight of 1.5 g/m2 or more on one side of the support, wherein on the side of the support opposite the light-sensitive layer there is no light absorbing layer, and by developing after exposing, from the side opposite the light-sensitive layer via the light input lenses, the light absorbing layer is formed based on a silver image.Type: ApplicationFiled: November 14, 2002Publication date: July 10, 2003Inventors: Junji Miyata, Kenichi Yasuda, Yasufumi Morimoto, Kumpei Oda, Masashi Nishiyama
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Patent number: 6586170Abstract: 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.Type: GrantFiled: April 28, 1998Date of Patent: July 1, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Kohzaburoh Yamada, Toshiaki Kubo, Hiroyuki Suzuki
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Patent number: 6582896Abstract: A photothermographic material includes on a support a non-photosensitive sliver salt, a photosensitive sliver halide, a nucleation agent, and a binder, and a layer containing specific compounds is formed on an outer side of the image forming layer. Thus, there are obtained such images optimal for photomechanical processes as having a high Dmax (maximum density), a low fog, a good coated surface condition, and less surface defects such as repellency, coating lines or the like.Type: GrantFiled: August 3, 2000Date of Patent: June 24, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadashi Ito, Yasuo Mukunoki
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Patent number: 6573021Abstract: The invention relates to an ultrahigh contrast photographic material comprising a support bearing a silver halide emulsion layer, containing a combination of two or more hydrazide nucleating agents in the emulsion layer and/or a hydrophilic colloid layer, characterized in that the combination comprises a nucleating agent(s) of formulae (I) and/or (I) with a nucleator of formula (III), in which the nucleating agent of formula (I) comprises (a) two nicotinamide moieties, which may be the same or different, which are linked by a linking group, and (b) a hydrazide moiety linked to only one of those nicotinamide moieties; the nucleating agent of formula (II) comprises a dimeric molecule comprising two monomers linked by a linking group, each monomer of which (a) may be the same or different and (b) comprises a hydrazide moiety and a nicotinamide moiety; and the nucleating agent of formula (III) comprises an aryl sulfonamido aryl hydrazide.Type: GrantFiled: January 7, 2002Date of Patent: June 3, 2003Assignee: Eastman Kodak CompanyInventors: Julie Baker, Ian Barford, Philip J. Coldrick, Dawn J. Jenkins, Roger H. Piggin
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Publication number: 20030096188Abstract: A planographic printing plate material and a method of preparing a planographic printing plate are disclosed, the planographic printing plate material comprising a support and provided thereon, one or more structural layers containing light sensitive silver halide grains, organic silver salt grains, a reducing agent, a contrast-increasing agent and a physical developing nucleus.Type: ApplicationFiled: March 12, 2002Publication date: May 22, 2003Inventor: Takeshi Sampei
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Patent number: 6566034Abstract: A high contrast photographic material is disclosed containing a new type of hydrazine compound characterized in that said hydrazine compound comprises a redox moiety capable of developing an exposed silver halide crystal. Preferably the photographic material is a graphic arts material for pre-press applications. The developed photographic material shows high gradation, and excellent dot quality and exposure latitude.Type: GrantFiled: September 7, 2001Date of Patent: May 20, 2003Assignee: AGFA-GevaertInventors: Johan Loccufier, Stefaan Lingier
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Patent number: 6558896Abstract: A silver salt photothermographic material is disclosed, comprising on a support (a) a light-insensitive organic silver salt, (b) light-sensitive silver halide and (c) a reducing agent capable of reducing a silver ion of the organic silver salt to silver upon heating, wherein when the exposed and thermally processed photothermographic material having a density of 3.0 have been kept at 50° C. and 50% RH for 120 hr., the photothermographic material exhibits a variation of density from 3.0 being within ±0.2.Type: GrantFiled: October 16, 2001Date of Patent: May 6, 2003Assignee: Konica CorporationInventor: Hideki Komatsu
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Patent number: 6548240Abstract: Disclosed is a photothermographic material containing a non-photosensitive silver salt, a photosensitive silver halide and a binder on a support, which comprises a nucleating agent and a surfactant represented by the following formula (F): [Rf-(Rc)n]m-Z Formula (F): wherein Rf represents a perfluoroalkyl group, Rc represents an alkylene group, and Z represents a group having an anionic group, cationic group, betaine group or nonionic group required for imparting surface activity, n is 0 or 1 and m is 1, 2 or 3. According to the present invention, there is provided a photothermographic material, in particular, for photomechanical processes, more specifically, for scanners and image setters, which shows low fog and high Dmax (maximum density), and exhibits little increase of fog even after the photosensitive material after development is stored for a long period of time.Type: GrantFiled: September 26, 2001Date of Patent: April 15, 2003Assignee: Fuji Photo Film Co., Ltd.Inventor: Tetsuo Yamaguchi
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Publication number: 20030068586Abstract: Disclosed is a photothermographic material containing at least a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on one surface of a support, wherein the material contains a compound producing imagewise a chemical species that can form development initiation points on and in the vicinity of the non-photosensitive silver salt of an organic acid or the like and an organic gold compound and the photosensitive silver halide has a mean grain size of 0.12 &mgr;m or less. This photothermographic material shows high sensitivity, low fog, high Dmax (maximum density), little increase of fog during storage and low temperature and humidity dependency during development.Type: ApplicationFiled: January 29, 2002Publication date: April 10, 2003Inventor: Tokuju Oikawa
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Patent number: 6544725Abstract: A lightsensitive silver halide photographic emulsion comprises silver halide grains, a sensitizing dye having a given maximum absorption wavelength and an organic compound exhibiting no absorption in a visible light region. The addition amount of the organic compound is in the range of 1 to 50 mol % based on the sensitizing dye, and a maximum absorption wavelength of the photographic emulsion exhibited by the sensitizing dye in the presence of the organic compound is at least 2 nm shorter than the maximum absorption wavelength exhibited by the sensitizing dye in the absence of the organic compound.Type: GrantFiled: August 8, 2001Date of Patent: April 8, 2003Assignee: Fuji Photo Film Co., Ltd.Inventor: Kiyoshi Morimoto
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Publication number: 20030064330Abstract: A photothermographic material comprising a photosensitive silver halide, a reducible silver salt, a phenolic reducing agent, a binder and a compound represented by the following formula on the same surface of a support: 1Type: ApplicationFiled: March 29, 2002Publication date: April 3, 2003Inventors: Hirokazu Kyota, Toshihide Ezoe, Minoru Sakai, Toyohisa Oya