Using Inorganic Or Organometallic Complex Patents (Class 430/447)
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Patent number: 8961802Abstract: A method of forming a fine pattern, including: a phase separation step in which a layer containing a block copolymer having a plurality of blocks bonded is formed on a substrate, and then the layer is heated for phase separation of the layer; a decomposition step in which at least a portion of a phase of at least one block of the plurality of blocks constituting the block copolymer is decomposed; a selective removal step in which the layer is immersed in a developing solution to selectively remove a phase containing decomposed blocks to form a nano structure; and an etching step in which the substrate is subjected to etching by using the nano structure as a mask; and a main component of the developing solution is an organic solvent having an SP value of 7.5 to 11.5 (cal/cm3)1/2, and having vapor pressure of less than 2.1 kPa at 25° C., or is benzene that may be substituted by an alkyl group, an alkoxy group, or a halogen atom, and the developing solution further contains metal alkoxide.Type: GrantFiled: June 26, 2013Date of Patent: February 24, 2015Assignees: Tokyo Ohka Kogyo Co., Ltd., RikenInventors: Shigenori Fujikawa, Harumi Hayakawa, Takahiro Senzaki, Ken Miyagi
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Patent number: 8227181Abstract: A method of preparing a patterned film on a substrate includes applying a silicone composition onto a substrate to form a film of the silicone composition. A portion of the film is exposed to radiation to produce a partially exposed film having an exposed region and a non-exposed region. The partially exposed film is heated for a sufficient amount of time and at a sufficient temperature to substantially insolubilize the exposed region in a developing solvent that includes a siloxane component. The non-exposed region of the partially exposed film is removed with the developing solvent to reveal a film-free region on the substrate and to form the patterned film including the exposed region that remains on the substrate. The film-free regions is substantially free of residual silicone due to the presence of the siloxane component in the developing solvent.Type: GrantFiled: August 8, 2007Date of Patent: July 24, 2012Assignee: Dow Corning CorporationInventors: Herman C. G. D. C. Meynen, Brian Harkness
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Patent number: 7351294Abstract: The present invention relates to methods of use for photocatalytic cleaning compositions and photocatalytic cleaning compositions effective to degrade soils deposited on a surface, to reduce the accumulation of soils on a surface, and to act as an antimicrobial agent.Type: GrantFiled: August 31, 2006Date of Patent: April 1, 2008Assignee: Reckitt Benckiser (UK) LimitedInventors: Barry Anthony Murrer, Robert J. Potter, Virginie Ogrodnik
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Publication number: 20040053168Abstract: A method of making a printing plate from a heat-sensitive PS plate of a positive-working mode for lithographic printing includes the steps of exposing the heat-sensitive PS plate to light and developing the PS plate using an alkaline developing solution containing at least one surfactant selected from the group consisting of anionic surfactants and ampholytic surfactants, and a salt selected from the group consisting of alkali metal salts and ammonium cation salts. The PS plate has a substrate and an image forming layer formed thereon, the image forming layer including a lower layer which is formed on the substrate and contains a water-insoluble and alkali-soluble resin and an upper heat-sensitive layer which is overlaid on the lower layer and contains a water-insoluble and alkali-soluble resin and an infrared absorption dye and exhibits an elevated solubility with respect to alkaline aqueous solutions when heated.Type: ApplicationFiled: September 10, 2003Publication date: March 18, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventor: Hironori Ohnishi
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Patent number: 6649330Abstract: 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.Type: GrantFiled: December 28, 2001Date of Patent: November 18, 2003Assignee: Eastman Kodak CompanyInventors: Joseph F. Bringley, Kenneth J. Lushington, Tiecheng A. Qiao, James S. Honan
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Publication number: 20030171446Abstract: The present invention relates to photocatalytic compositions effective to degrade soils deposited on a surface, to reduce the accumulation of soils on a surface, and to act as an antimicrobial agent. The invention also describes methods employing said compositions, and uses thereof.Type: ApplicationFiled: November 5, 2002Publication date: September 11, 2003Inventors: Barry Anthony Murrer, Robert J Potter, Virginie Ogrodnik
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Patent number: 5976773Abstract: The invention relates to a silver halide photographic process carried out using a developing agent incorporated in particles. The developing agent is present in the particles along with a phospholipid-type surfactant. These particles are placed, upon development, in contact with the exposed silver halide photographic material, in the presence of an alkaline activator.Type: GrantFiled: December 22, 1998Date of Patent: November 2, 1999Assignee: Eastman Kodak CompanyInventor: Laurent G. Fernandez-Puente
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Patent number: 5882841Abstract: A silver halide photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein at least one of the silver halide emulsion layer and other hydrophilic colloid layers comprises fine polymer particles containing at least one hydrazine compound represented by the following general formula (NB):A--(B).sub.m (NB)wherein A represents a connecting group; m represents an integer of from 2 to 6; and B represents a group containing a hydrazine structure. The sliver halide photographic light-sensitive material exhibits an ultrahigh contrast, an excellent storage stability and an excellent processing stability and is prevented from the occurrence of processing unevenness. A method for processing the silver halide photographic light-sensitive material is also disclosed.Type: GrantFiled: December 24, 1997Date of Patent: March 16, 1999Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshihide Ezoe, Kouta Fukui, Kohzaburoh Yamada
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Patent number: 5821037Abstract: A redox developer-amplifier composition contains a color developing agent and a redox oxidizing agent. The composition also contains a stabilizing amount of Zn.sup.++ or Mg.sup.++ ions, and thus has improved stability.Type: GrantFiled: March 13, 1997Date of Patent: October 13, 1998Assignee: Eastman Kodak CompanyInventors: Peter J. Twist, Christopher J. Winscom
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Patent number: 5698381Abstract: A low volume developer tank system for the sequential processing of films that require different concentrations of bromide ions in the developer solution comprises a developer tank (2) provided with an ion exchange column (30) for removing bromide ions from solution which column can be engaged and disengaged and a plurality of reservoirs (6,8,10,12,14) arranged to feed individual replenisher components to the recirculation system (20). When processing a process C-41 compatible film the system is preferably operated with no bromide in the replenisher and removal of bromide from the developer is by overflow. When processing a film employing zero or very low bromide, the system is preferably operated with no bromide in the replenisher, substantially no overflow and removal of bromide from the developer is by ion exchange.Type: GrantFiled: September 13, 1996Date of Patent: December 16, 1997Assignee: Eastman Kodak CompanyInventor: Nigel Richard Wildman
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Patent number: 5618661Abstract: A method for processing a silver halide photographic light-sensitive material by an automatic processor is disclosed. The processing method comprises the steps of (1) developing a silver halide photographic light-sensitive material with a developer being in a developing tank of said automatic processor while replenishing a developer replenisher in a rate of from 50 ml to 330 ml per square meter of the light-sensitive material processed and (2) fixing said developed silver halide photographic light-sensitive material with a fixer being in a fixing tank of said automatic processor while replenishing a fixer replenisher in a rate of from 50 ml to 330 ml per square meter of the light-sensitive material. The light-sensitive material comprises a support and at least one silver halide emulsion layer provided on a surface of a support which is a stretched film composed of a styrene copolymer having a syndiotactic structure or a composition containing said styrene copolymer.Type: GrantFiled: October 31, 1995Date of Patent: April 8, 1997Assignee: Konica CorporationInventor: Takeshi Sampei
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Patent number: 5538834Abstract: A method is disclosed for developing an image in a photographic element comprising a support, a silver halide emulsion containing an imagewise distribution of developable silver halide grains, and a blocked photographically useful compound comprising a photographically useful group and a blocking group capable of releasing the photographically useful group upon processing the photographic element in the presence of a peroxide, wherein the blocking group comprises an electrophilic group which is solely capable of undergoing a nucleophilic displacement reaction, the electrophilic group being bonded directly or through a releasable timing group to the photographically useful group, with the proviso that when the photographically useful group is a development inhibitor, the blocking group is bonded to the photographically useful group through at least one releasable timing group. The method comprises the step of contacting the photographic element with a processing solution comprising a peroxide.Type: GrantFiled: November 21, 1994Date of Patent: July 23, 1996Assignee: Eastman Kodak CompanyInventors: J. Michael Buchanan, Jared B. Mooberry, John Texter
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Patent number: 5464730Abstract: Disclosed is a method of developing a transmission black-and-white silver halide photographic material with an automatic processor, in which a developer having a bromide ion concentration of 0.01 mol/liter or less and having a pH value of 9.8 or less is used with replenishment of the developer being in an amount of about 200 ml or less per m.sup.2 of the material being processed. Though the amount of the replenisher to the developer used is small in the method, the photographic properties of the processed material are stable and the processed material is fogged little.Type: GrantFiled: April 22, 1994Date of Patent: November 7, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Eiichi Okutsu, Takashi Toyoda, Tadashi Ito
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Patent number: 5310631Abstract: A method of producing an image comprising processing an imagewise exposed silver halide photosensitive material comprising a support having thereon a silver halide emulsion layer containing a silver halide sensitized with a selenium sensitizer in a black-and-white developer which contains a chelate complex salt of a transition metal. In a preferred embodiment, an electric current is passed through the developer to remove halide ions therefrom and to regenerate (reduce) the metal complex. A protective layer may be provided on the silver halide emulsion layer having a thickness of 0.6 .mu.m or less.Type: GrantFiled: April 19, 1993Date of Patent: May 10, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Takashi Nakamura, Yasuhisa Ogawa, Masato Hirano
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Patent number: 5296342Abstract: For the processing in a total processing time of 60 seconds or less of exposed X-ray materials containing silver bromide or silver bromoiodide emulsions use is made of an aqueous alkaline photographic developing solution, having a pH in the range of 9 to 12, comprising a dihydroxybenzene developing agent, 4-hydroxymethyl-4-methyl-1-phenyl-3-pyrazolidinone as an auxiliary developing agent, at least one organic antifoggant and a compound providing iodide ions.Type: GrantFiled: November 12, 1992Date of Patent: March 22, 1994Assignee: Agfa-Gevaert, N.V.Inventors: Andre Roefs, Francis Sels, Marc Van den Zegel
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Patent number: 4975357Abstract: Hydroxylamine compounds are commonly included in photographic color developing solutions to retard aerial oxidation. When the photographic element processed in the color developing solution is one which contains an aromatic polyhydroxy compound which serves as a stabilizing addendum, there will be a build-up of the level of such compound in the developing solution as seasoning occurs. Also, as a consequence of seasoning, there is a gradual build-up of the level of trace metal impurities in the solution. Interaction of a trace metal impurity with the aromatic polyhydroxy compound can form a metal-complex which catalyzes the oxidation of the hydroxylamine compound and thereby renders it ineffective for its intended purpose. In the improved method of this invention, the color developing solution is protected against the unwanted metal-complex catalyzed oxidation by incorporation therein of an aminopolycarboxylic acid sequestering agent.Type: GrantFiled: May 23, 1989Date of Patent: December 4, 1990Assignee: Eastman Kodak CompanyInventors: Jean M. Buongiorne, Janet M. Huston, Paul A. Schwartz, Sheridan E. Vincent
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Patent number: 4937178Abstract: The present inventions relate to a processing method for processing, with a developing time of not more than 180 seconds, a silver halide color photographic light-sensitive material comprising a support, provided thereon, with at least one silver halide emulsion layer, and at least one emulsion layer containing silver iodo-bromide with not less than 0.5 mole% of silver iodine, in particular to an active processing method wherein, a light-sensitive material B not only containing silver iodo-bromide with an iodine content of not less than 0.5 mole% but also a magenta coupler and providing a maximum magenta density, after exposed, and being capable of only satisfying the maximum magenta dye density M of M<2.0 if exposed under specific conditions and then subjected to color developing of a duration of three minutes 15 seconds at 38.degree. C. with a specific developer solution, is capable of offering a maximum magenta density satisfying M.gtoreq.2.Type: GrantFiled: March 7, 1988Date of Patent: June 26, 1990Assignee: Konica CorporationInventors: Shigeharu Koboshi, Satoru Kuse, Masayuki Kurematsu, Moeko Hagiwara
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Patent number: 4882201Abstract: A method is provided for coating a substrate with a non-toxic irradiation curable epoxy resin composition. There is used an alkoxy-substituted aryl onium salt, in combination with a non-toxic oxirane-containing organic or silicone resin.Type: GrantFiled: March 21, 1988Date of Patent: November 21, 1989Assignee: General Electric CompanyInventors: James V. Crivello, Julia L. Lee
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Patent number: 4828962Abstract: Photographic elements comprising a negative working silver halide emulsion containing high intensity reciprocity failure reducing amounts of dopant comprising both ruthenium and iridium ions.Type: GrantFiled: September 8, 1987Date of Patent: May 9, 1989Assignee: Minnesota Mining and Manufacturing CompanyInventors: Nicholas E. Grzeskowiak, Keith A. Penfound
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Patent number: 4772545Abstract: A silver halide photographic material in which a silver iodobromide emulsion having an iodide content of 2 mole % or more and an organometallic salt functioning as a development inhibitor are employed in combination, whereby an improvements in graininess and sharpness of a developed image are achieved and high photographic speed is retained.A process for producing silver images using the silver halide photographic material is also disclosed.Type: GrantFiled: July 22, 1986Date of Patent: September 20, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Shingo Nishiyama, Kiyoshi Kawai
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Patent number: 4722884Abstract: A negative silver halide photographic light-sensitive material is provided, having a silver halide emulsion layer, which layer comprises silver haloiodide grains prepared in the presence of an iridium salt in an amount of 1.times.10.sup.-8 to 1.times.10.sup.-5 mole per one mole of silver, wherein the silver iodide content in the surface part of said grain is larger than the average silver iodide content in said grain, and additionally containing in said emulsion layer or in some other hydrophilic colloid layer, a compound of formula (I):R.sub.1 --NHNH--CHO (I)wherein R.sub.1 represents an aliphatic group or an aromatic group. Said photographic light-sensitive material is, after being exposed imagewise, developed with a developer containing 0.15 mole/l or more sulfite ion and having a pH value of 9.5-12.3, to form negative images having ultra-high contrast.Type: GrantFiled: July 23, 1985Date of Patent: February 2, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuaki Inoue, Senzo Sasaoka, Kenichi Kuwabara, Kimitaka Kameoka
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Patent number: 4702998Abstract: There are disclosed a processing solution having bleaching ability for use in light-sensitive silver halide photographic material, which comprises at least one selected from metal complexes of large cyclic polyamine derivatives and a method for processing of light-sensitive silver halide photographic material, which comprises carrying out development processing of an exposed light-sensitive silver halide photographic material and then processing the developed material with the processing solution.The processing solution of the present invention has potent bleaching power, and can afford excellent photographic image characteristics by processing therewith.Type: GrantFiled: March 24, 1986Date of Patent: October 27, 1987Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: M. Tanaka, Kazuhiro Kobayashi, Shigeharu Koboshi
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Patent number: 4617258Abstract: A silver halide photographic material is disclosed. It contains per 100 g of silver at least 40 mg of a water-soluble compound comprising an element of group VIII of the periodic table and having a molecular weight of at least 100, and 1.2 to 120 mg of a black-and-white silver halide developing agent. The material has improved gradation characteristics and is subject to minimum variation in photographic characteristics.Type: GrantFiled: March 25, 1986Date of Patent: October 14, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Hiroshi Menjo, Nobuo Sakamoto, Yoshikazu Watanabe
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Patent number: 4607000Abstract: Radiation sensitive silver halide photographic elements are disclosed which are protected from fog by amido substituted aromatic tellurochalcogenides. The amido substituted aromatic tellurochalcogenides can be initially incorporated in the photographic element as manufactured or during processing.Type: GrantFiled: April 4, 1985Date of Patent: August 19, 1986Assignee: Eastman Kodak CompanyInventors: Wolfgang H. H. Gunther, Roger Lok
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Patent number: 4546068Abstract: There is disclosed a method for processing of a light sensitive silver halide color photographic material characterized by carrying out, after an image exposure of the material, a development processing of the material in the presence of the following components (A), (B), and (C) and/or (D):(A) an aromatic primary amine color developing agent compound;(B) a manganese salt and/or a cerium salt;(C) a diphosphonic acid sequestering agent and a magnesium salt and/or a lithium salt; and(D) at least one of the sequestering agent selected from the group consisting of the compounds represented by the formulas (I), (II), (III), (IV) and (V) found in the specification.Type: GrantFiled: May 29, 1984Date of Patent: October 8, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventor: Satoru Kuse
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Patent number: 4496645Abstract: A photographic color diffusion transfer process comprising the steps:(1) image-wise photo-exposing a photographic material which contains on a support at least one waterpermeable silver halide emulsion layer, the silver halide of which essentially consists of silver chloride, and in operative contact therewith at least one non-diffusing ballasted dye or dye precursor which when contacted with an aqueous alkaline liquid remains immobile in a waterpermeable colloid layer, and in reduced state is capable of releasing (a) dye(s) or dye precursor(s),(2) treating the photographic material with an alkaline processing liquid in the presence of a silver halide developing agent,(3) maintaining said photographic material in contact with the alkaline processing liquid in the presence of said developing agent to release said dye or dye precursor in diffusible state; and(4) transferring at least a portion of said released dye or dye precursor to a non-light-sensitive layer and carrying out the development in the presence oType: GrantFiled: October 26, 1983Date of Patent: January 29, 1985Assignee: Agfa-Gevaert, N.V.Inventors: Wilhelmus Janssens, Daniel A. Claeys
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Patent number: 4493888Abstract: A silver halide photographic light-sensitive material containing a diffusion resistant coupler, a light-sensitive silver halide and at least one organic metal complex represented by the following general formula (I) in the same layer or different layers on a support. ##STR1## wherein M represents a divalent metal atom; R.sup.1 and R.sup.2, which may be the same or different, each represents an alkyl group having from 1 to 5 carbon atoms, a hydroxyalkyl group having from 1 to 5 carbon atoms, an alkoxyalkyl group having from 2 to 10 carbon atoms or an alkylsulfonamidoalkyl group having from 2 to 10 carbon atoms, or R.sup.1 and R.sup.2 may be bonded each other to form a heterocyclic ring together with the nitrogen atom; R.sup.3, represents a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms or an alkoxy group having from 1 to 5 carbon atoms; and R.sup.4 and R.sup.Type: GrantFiled: July 15, 1983Date of Patent: January 15, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsusuke Endo, Eiichi Kato, Nobutaka Ohki, Takatoshi Ishikawa
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Patent number: 4460682Abstract: A novel silver halide photographic element which contains a nondiffusible complex capable of releasing a diffusible, photographically useful material is disclosed.Said nondiffusible complex becomes active for ligand exchange upon reduction under alkalin conditions to release a diffusible, photographically useful material, said complex being represented by the following formula: ##STR1## wherein La is a quadridentate ligand group; Lb is a didentate ligand group; BALL is a ballast group; PHOTO is a photographically useful material group; Y is a counter ion; and r is the number of counter ions necessary for neutralizing the electric charge on the CO(III) complex.Type: GrantFiled: December 15, 1982Date of Patent: July 17, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Noboru Mizukura, Satoru Ikeuchi, Shunji Suginaka, Noriko Fujita
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Patent number: 4456674Abstract: This invention relates to diffusion transfer processes and products wherein the transmission density of the pigmented processing composition layer is increased by employing an alkali earth metal salt to increase the light-absorbing ability of a carboxynaphthol phthalein optical filter agent within said processing composition layer. In another embodiment, a carboxyindole phthalein optical filter agent also is included in said processing composition layer, and a zinc or cadmium salt is employed to shift the spectral absorption of the carboxyindole phthalein into the green region of the visible spectrum. In a further embodiment, a calcium salt is employed in a viscous pigmented processing compositon comprising a light-reflecting pigment, colloidal silica and a metal chelating agent, e.g., an alkylene polyamine polyacetic acid to stabilize the spreading characteristics of the compositions.Type: GrantFiled: July 25, 1983Date of Patent: June 26, 1984Assignee: Polaroid CorporationInventors: Leon D. Cerankowski, Gary S. LaPointe, Neil C. Mattucci
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Patent number: 4423140Abstract: Photographic silver halide emulsions are protected against latent image fading by aromatic latent image stabilizing compounds having the structure: ##STR1## wherein: R.sup.1 is hydrogen, alkyl, or aryl;R.sup.2 and R.sup.3 are each individually hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, or aminocarbonyl;X is a middle chalcogen;Z represents the atoms completing an aromatic nucleus;n is an integer of 1 or 2; andM.sup..sym.n is a cation of valence n chosen from the group consisting of an onium ion, an ion from Group IA or IIA, and a metal ion from Group IIB, VIIB, IVA, or VA.Type: GrantFiled: June 25, 1298Date of Patent: December 27, 1983Assignee: Eastman Kodak CompanyInventor: Arthur H. Herz
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Patent number: 4421846Abstract: A photographic element containing a nondiffusible metal complex capable of releasing a diffusible photographically useful group. The complex contains at least one poly-dentate ligand which contains the photographically useful group. The complex may be activated when reduced under alkaline conditions to release the photographically useful group.Type: GrantFiled: December 23, 1981Date of Patent: December 20, 1983Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Satoru Ikeuchi, Masaru Kanbe, Jiro Takahashi, Ryuichiro Kobayashi, Shunji Suginaka, Noboru Mizukura
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Patent number: 4416970Abstract: Image transfer photographic assemblages, processes, compositions and cover sheets are described which employ a manganous compound. After processing, the manganous compound is capable of diffusing to the silver halide emulsion layer and a redox dye-releaser associated therewith to inhibit further dye release. Post-process D.sub.min stability is thereby improved.Type: GrantFiled: September 29, 1982Date of Patent: November 22, 1983Assignee: Eastman Kodak CompanyInventor: Thomas O. Maier
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Patent number: 4307168Abstract: Electrographic image patterns are developed using marking particles containing a catalyst or catalyst precursor. The developed image pattern is then amplified by contacting it with high gain chemical-redox amplification composition.Type: GrantFiled: May 5, 1977Date of Patent: December 22, 1981Assignee: Eastman Kodak CompanyInventors: Mark Lelental, Joseph Y. Kaukeinen
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Patent number: 4268617Abstract: A silver halide color photographic light-sensitive material comprising a support and at least one silver halide emulsion layer, at least one of the layers of said photographic sensitive material containing at least one compound selected from the group consisting of those compounds represented by the formulae (I), (II), (III) and (IV):[Co(NH.sub.3).sub.6 ][R.sup.1 COO].sub.3 (I)[Co(NH.sub.3).sub.6 ][R.sup.2 OOCR.sup.3 COO].sub.3 (II)[Co(NH.sub.3).sub.5 (R.sup.4 COO)]X.sub.2 (III)[Co(NH.sub.3).sub.5 (R.sup.5 NH.sub.2)]X.sub.3 (IV)wherein R.sup.1, R.sup.2 and R.sup.4 each represent an alkyl group having at least 3 carbon atoms or a fluorine-substituted alkyl group having at least 1 carbon atom; R.sup.3 is an alkylene group; R.sup.5 is an alkyl group having at least 1 carbon atom; X is a halogen atom, a nitrate ion, a sulfate ion, or a carboxylate ion is disclosed.Type: GrantFiled: September 27, 1979Date of Patent: May 19, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Akio Mitsui, Yoshiaki Suzuki
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Patent number: 4258127Abstract: In a reversal color development process including a black and white development and a color development, the sharpness, granularity and multilayer effect of the color photographic images formed are remarkably improved by subjecting silver halide reversal color photographic materials to black and white development in the presence of a DIR compound, i.e., a non-coupler type compound capable of releasing a development inhibitor upon development, processing the color photographic materials in an aqueous solution of a fogging agent, and then subjecting the color photographic materials to color development.Type: GrantFiled: October 31, 1975Date of Patent: March 24, 1981Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Ishibashi, Haruhika Iwano
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Patent number: 4247620Abstract: A light-sensitive silver halide photographic material which comprises a compound represented by general formula [I] shown below:General formula [I] ##STR1## wherein A represents a phosphorus atom, a nitrogen atom or an arsenic atom; R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represent a substituted or unsubstituted aryl group; X represents a persulfate ion, a chlorate ion, a bromate ion, an iodate ion or a metal complex anion; and n is an integer of 1 to 4,and a method for processing the same.Type: GrantFiled: June 18, 1979Date of Patent: January 27, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshio Nagatani, Kazuo Takahashi, Takeshi Habu
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Patent number: RE32195Abstract: Photographic silver halide emulsions are protected against latent image fading by aromatic latent image stabilizing compounds having the structure: ##STR1## wherein: R.sup.1 is hydrogen, alkyl, or aryl;R.sup.2 and R.sup.3 are each individually hydrogen, alkyl, alkoxy, carboxy, alkoxycarbonyl, or aminocarbonyl;X is a middle chalcogen.[.;.]. .Iadd.chosen from the class consisting of sulfur and selenium; .Iaddend.Z represents the atoms completing an aromatic nucleus;n is an integer of 1 or 2; andM.sup..sym.n is a cation of valence n chosen from the group consisting of an onium ion, an ion from Group IA or IIA, and a metal ion from Group IIB, VIIB, IVA, or VA.Type: GrantFiled: April 4, 1985Date of Patent: July 1, 1986Assignee: Eastman Kodak CompanyInventor: Arthur H. Herz