Stabilizing Patents (Class 430/372)
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Patent number: 5441855Abstract: A color photographic material which contains in at least one blue-sensitive layer a yellow coupler and a compound of the formula (I) ##STR1## in which R.sub.1 means hydrogen or alkyl,R.sub.2 means hydrogen or alkyl,R.sub.3 means hydrogen or alkyl,1 means 1 to 20X ##STR2## or cycloalkene, R.sub.4 means hydrogen or alkyl,R.sub.5 means hydrogen or alkyl andn means 1 to 6,shows improved light-stability of the yellow dye obtained from said yellow coupler by exposure and processing.Type: GrantFiled: June 9, 1994Date of Patent: August 15, 1995Assignee: Agfa-Gevaert AGInventors: Beate Weber, Jorg Hagemann, Gunter Helling, Markus Geiger
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Patent number: 5434035Abstract: A method of treating a seasoned fixing solution comprising desilvering a fixing solution containing a chelating compound represented by Formula IMOOC(CH.sub.2)m(X)p((CH.sub.2).sub.n COOM).sub.q (I)where X is N, or C--OH;n and m are independently 0, 1, or 2;if X is N then p is 0 or 1 and q is 1 or 2;if X is C-OH then p is 0, 1 or 2 and q is 1 or 2; andM is a cationic counterion; andfurther containing a carryover amount of a bleaching agent which is a complex of ferric ion and a tridentate or a tetradentate ligand.Type: GrantFiled: December 29, 1993Date of Patent: July 18, 1995Assignee: Eastman Kodak CompanyInventors: Mary E. Craver, Manuel A. Santos-Rosario, Keith H. Stephen
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Patent number: 5429918Abstract: A silver halide color photographic material contains at least one hydroxypyridine compound of formulae (A), (B) and (C) in at least one layer on the support: ##STR1## The material is capable of providing a color image having an improved fastness to light.Type: GrantFiled: August 19, 1993Date of Patent: July 4, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Seto, Masakazu Morigaki
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Patent number: 5427896Abstract: A method for processing a color photographic material comprising a support having on at least one surface thereof at least one layer containing a light-sensitive silver halide emulsion and a non-diffusing oil-soluble coupler capable of forming a dye by coupling with the oxidation product of an aromatic primary amine developing agent, wherein the oil-soluble dye is a pyrrolotriazole cyan coupler and the color photographic material is processed after color development with a bath containing, as a fixing agent, at least one of nitrogen-containing heterocyclic compounds having a sulfide group, meso-ionic compounds and thioether compounds.Type: GrantFiled: February 12, 1993Date of Patent: June 27, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroshi Hayashi
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Patent number: 5427897Abstract: A method for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least a silver halide emulsion layer containing a cyan dye-forming coupler, a silver halide emulsion layer containing a magenta dye-forming coupler, and a silver halide emulsion layer containing a yellow dye-forming coupler: wherein the silver halide color photographic material contains at least one cyan dye-forming coupler represented by the following general formula (I) or (II) in the silver halide emulsion layer containing the cyan dye-forming coupler: and wherein the processing comprises color developing the imagewise exposed silver halide color photographic material with a color developer containing a p-phenylenediamine derivative represented by the following general formula (III): ##STR1## wherein the substituents are defined herein the specification.Type: GrantFiled: February 12, 1993Date of Patent: June 27, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Koichi Nakamura, Masato Taniguchi
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Patent number: 5424176Abstract: A fixing solution having a pH.gtoreq.7 and comprising a fixing amount of sulfite and a fix accelerating amount of a thioether compound; wherein the fixing solution contains less than 0.05 moles/liter of thiosulfate and a method of processing an imagewise exposed and developed silver halide photographic element comprising fixing in said fixing solution a silver halide photographic element containing at least one emulsion or deposit of silver halide comprising greater than 90 mole % silver chloride.Type: GrantFiled: November 9, 1993Date of Patent: June 13, 1995Assignee: Eastman Kodak CompanyInventors: Eric R. Schmittou, Therese M. Feller, Stuart T. Gordon
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Patent number: 5424177Abstract: Disclosed is a stabilizer for silver halide color photographic light-sensitive materials comprising-at least one compound represented by Formula (I) and at least one compound selected from the group consisting of Formula (II-A), Formula (II-B) and Formula (II-C); ##STR1## wherein Z represents a group of atoms necessary to form a substituted or unsubstituted homocycle or a substituted or unsubstituted heterocycle, X represents an aldehyde group, ##STR2## wherein R.sub.1 and R.sub.2 each represents a lower alkyl group; 1 represents an integer of 1 to 4, ##STR3## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a lower alkyl group, X.sub.1 and X.sub.2 each represent an alkyleneoxy group or a branched alkyleneoxy group, m and n each represents 0 or an integer of 1 to 100, provided that m+n.ltoreq.100 is satisfied, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each represents a hydrogen atom, a hydroxyl group, a lower alkyl group, an alkoxyl group, a halogen atom or a hydroxyalkyl group.Type: GrantFiled: June 26, 1992Date of Patent: June 13, 1995Assignee: Konica CorporationInventors: Hiroaki Kobayashi, Kenji Kuwae, Moeko Hagiwara
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Patent number: 5415979Abstract: A composition of stabilizer for processing silver halide photographic material is disclosed. The composition comprises a fluorinated anionic surfactant represented by Formula I; ##STR1## wherein Rf is an alkyl group having a fluorine atom, an alkenyl group having a fluorine atom or an alkinyl group having a fluorine atom; X is a sulfonamido group, a ##STR2## group or a ##STR3## group, in which Rf' is a saturated or unsaturated hydrocarbon group having a fluorine atom; Y is alkyleneoxide or alkylene; A is an --S.sub.3 M group, an --OSO.sub.3 M group, a --COOM group, an --OPO.sub.3 (M.sub.1) (M.sub.2) group or a --PO.sub.3 (M.sub.1) (M.sub.2) group, in which M, M.sub.1 and M.sub.2 are each a hydrogen atom, a lithium atom, a potassium atom, a sodium atom or an ammonium group; m is 0 or 1 and n is 0 or an integer of 1 to 10.Type: GrantFiled: July 21, 1994Date of Patent: May 16, 1995Assignee: Konica CorporationInventors: Koji Takemura, Hiroaki Kobayashi
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Patent number: 5409805Abstract: A solid processing agent for a silver halide photographic light-sensitive material is disclosed, which comprises a compound represented by the following Formula (I): ##STR1## wherein R.sub.1 represents a halogen atom, an alkyl group or an alkenyl group, provided that a plural of R.sub.1 's may be the same or different; R.sub.2 represents a halogen atom, an alkyl group, an alkenyl group or an alkoxy group; R.sub.3 represents a lower alkyl group, provided that R.sub.1, R.sub.2 and R.sub.3 may be the same or different, m and n each represent an integer of 0 to 5; and X represents an anion.Type: GrantFiled: July 14, 1994Date of Patent: April 25, 1995Assignee: Konica CorporationInventors: Tsuyoshi Haraguchi, Hiroaki Kobayashi
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Patent number: 5405969Abstract: The invention provides a process for making a thioether compound having the formula:A--S--Rcomprising reacting:(1) Compound I having the formula:A--H (I)where A comprises a carbon atom bonded to H where that carbon is either capable of ionizing to a nucleophilic state or is conjugated to such an atom, with(2) Compound II having the formula:H--SR or RSSR (II)wherein R is selected from the group consisting of:(a) a substituted or-unsubstituted aryl group or alicyclic group, said groups being carbocyclic or heterocyclic, and(b) a thiocarbonyl group,in the presence of a base and an oxidizing agent that is free of reactive halogen and that is capable of oxidizing H--SR to RSSR.Type: GrantFiled: December 10, 1993Date of Patent: April 11, 1995Assignee: Eastman Kodak CompanyInventors: Charles W. Wright, Joan C. Potenza, John E. Leary, Jr., Chang K. Kim
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Patent number: 5401621Abstract: A process for processing an imagewise exposed silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, comprising the steps of developing in a developing bath and processing in a bath having a fixing ability, wherein the bath having the fixing ability contains at least one mesoionic compound represented by formula (I): ##STR1## In a second embodiment, a process is disclosed for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, comprising the steps of subjecting the material to color development, and then subjecting the material to blix in a blix bath, wherein the blix bath contains at least one mesoionic compound represented formula (III) or (IV): ##STR2##Type: GrantFiled: August 2, 1991Date of Patent: March 28, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetsuro Kojima, Nobuo Watanabe
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Patent number: 5395747Abstract: Certain poly(lactic acid) and poly(glycolic acid) polymers or copolymers, and certain carbonates, lactones, lactates, lactylates, lactides, glycolates, glycolylates, and glycolides have been found to stabilize thermal-dye-bleach constructions containing a dye in association with a thermally-generated-bleaching agent. Preferably, the thermally-generated-bleaching agent is a thermal-carbanion-generating agent such as a quaternary ammonium salt of a phenylsulfonylacetic acid or a thermal-nucleophile-generating agent such as an ammonium salt of a phenylsulfonylacetic acid. These materials have been found to be particularly effective when used in acutance and antihalation systems for photothermographic and photographic elements.Type: GrantFiled: December 20, 1993Date of Patent: March 7, 1995Assignee: Minnesota Mining & Manufacturing CompanyInventors: Randall H. Helland, William D. Ramsden, Roger A. Mader
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Patent number: 5380624Abstract: A novel process is provided for processing a silver halide color photographic material with a color developing solution containing at least one aromatic primary amine color developing agent, wherein said silver halide color photographic material contains at least one of anti-bacterial agents represented by the general formulas (I), (II), (III), (IV) and (V) and that the processing is effected while said color developing solution is supplied in an amount of 20 to 120 ml per 1 m.sup.2 of said silver halide color photographic material.Type: GrantFiled: September 27, 1993Date of Patent: January 10, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuaki Yoshida, Takatoshi Ishikawa, Yoshihiro Fujita, Genichi Furusawa
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Patent number: 5378588Abstract: There is disclosed a method for processing a silver halide photographic light sensitive material comprising the steps ofdeveloping the light sensitive material with a developing solution,treating the light sensitive material with a fixing capacity-having solution, and thentreating the light sensitive material with a processing solution (S), wherein part of or the whole of overflow from a tank containing the processing solution (S) is allowed to flow into a tank containing the fixing capability-having solution, and wherein solid processing chemicals are added to the fixing capacity-having solution or the overflow from the tank containing the processing solution (S).Type: GrantFiled: July 20, 1993Date of Patent: January 3, 1995Assignee: Konica CorporationInventor: Ichiro Tsuchiya
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Patent number: 5376519Abstract: A color photographic material and process provide a two-equivalent 3-anilino pyrazolone magenta dye-forming coupler, a phenolic coupler solvent and at least one amine compound.Type: GrantFiled: April 23, 1992Date of Patent: December 27, 1994Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Stephen P. Singer
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Patent number: 5374513Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a spectrally sensitized silver halide emulsion layer and a non-light-sensitive layer provided on a support. According to the present invention, the silver halide emulsion layer or the non-light-sensitive layer contains a complex of Ni, Co, Mn or Zn with a nitrogen-containing heterocyclic compound represented by the following formula: ##STR1## wherein ##STR2## Y is CR.sup.3 or N; Z is CR.sup.4 or N; each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently is hydrogen, a halogen atom, hydroxyl, amino, hydroxyamino, cyano, an alkyl group, an aryl group, an alkylthio group, an alkylamino group, an arylamino group, an alkoxycarbonyl group or an acylamino group; R.sup.1 and R.sup.Type: GrantFiled: December 15, 1992Date of Patent: December 20, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsuhisa Ohzeki, Hiroyuki Asanuma
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Patent number: 5362609Abstract: Disclosed is a stabilizing solution for a light-sensitive silver halide color photographic material, comprises a compound represented by the following Formula F, and has a pH of from 7.5 to 10.0; ##STR1## wherein Z represents a group of atoms necessary to form a substituted or unsubstituted cyclic hydrocarbon or heterocyclic ring, X represents an aldehyde group, ##STR2## wherein R.sub.1 and R.sub.2 each represent a lower alkyl group. The stabilizing solution and the processing method for a light-sensitive silver halide color photographic material according to this invention, can provide a processing technique that can achieve a superior stability of dye images, can better prevent backside deposits, can promise superior solution stability, and can better prevent yellow staining.Type: GrantFiled: January 26, 1994Date of Patent: November 8, 1994Assignee: Konica CorporationInventors: Kenji Kuwae, Hiroaki Kobayashi, Moeko Hagiwara
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Patent number: 5362615Abstract: A color-photographic recording material comprising at least one red-sensitive silver halide emulsion layer associated with a cyan coupler, at least one green-sensitive silver halide emulsion layer associated with a magenta coupler, and at least one blue-sensitive silver halide emulsion layer associated with a yellow coupler, at least one layer of the material containing a hydroquinone diether compound having the following formula I and optionally at least one compound having one of the formulae II, III, IV, V, SA and SB given in the description, characterized by increased light stability of the image colorants produced during chromogenic development, ##STR1## In the formula: R.sup.1 denotes alkyl, cycloalkyl or aryl;R.sup.2 denotes H, alkyl;R.sup.3, R.sup.4 denote H, alkyl, cycloalkyl, aryl, halogen, alkoxy, aroxy, acyloxy, alkylthio, arylthio, acyl, sulphonyl, sulphamoyl, acylamino, sulphonylamino, nitro;R.sup.5 denotes H, acyl, alkyl;X denotes --O-- or --NR.sup.6 --;R.sup.Type: GrantFiled: August 20, 1993Date of Patent: November 8, 1994Assignee: Agfa AGInventors: Jorg Hagemann, Ralf Weimann, Erich Wolff, Johannes Sobel
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Patent number: 5362882Abstract: A novel pyrrolotriazole derivative is disclosed, represented by any one of formulae (I), (II), (III), (IV), or (V): ##STR1## A heat transfer dye providing material is also disclosed, comprising a support having thereon a dye providing layer containing a heat migrating dye, said dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any one of formulae (I), (II), (III), or (IV).Type: GrantFiled: June 5, 1992Date of Patent: November 8, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Suzuki, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
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Patent number: 5360700Abstract: A process for developing and its after-treatment of an exposed silver halide photographic material which is capable of replacing a step of rinsing by water washing and a step of final stabilization by formaldehyde, with a single stabilizing step without water rinsing followed by directly to a drying step is disclosed.The process comprises a solution capable of bleaching containing a ferric complex salt of organic acid, diethylenetriaminepentaacetic acid and a like, and a stabilizing solution containing a certain aldehyde compound.Type: GrantFiled: October 5, 1993Date of Patent: November 1, 1994Assignee: Konica CorporationInventors: Tomonori Kawamura, Shigeharu Koboshi
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Patent number: 5356763Abstract: A silver halide color photographic material enables rapid processing, provides a high quality image and has excellent light fastness under extensive conditions, even under high humidity comprises a support, provided thereon at least three silver halide emulsion layers each containing at least one different coupler for forming a different dye by a coupling reaction with the oxidation product of an aromatic primary amine developing agent and each having a different light sensitivity, and at least one anti-color mixing layer provided between each of the emulsion layers and comprising a light-insensitive layer, wherein at least one of the above silver halide emulsion layers contains silver halide grains having a silver chloride content of 90 mole % or more and a magenta coupler represented by the following formula (I) and at least two of the anti-color mixing layers contain at least one anti-color mixing agent having a molecular weight of 350 or more and at least one high boiling organic solvent having the dielecType: GrantFiled: March 1, 1993Date of Patent: October 18, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Nobutaka Ohki
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Patent number: 5354646Abstract: A method of colour-developing a silver halide colour light-sensitive material having plural silver halide emulsion layers each containing substantially silver chlorobromide. At least one of the layers has a silver chloride content of not less than 20 mol %, and a colour developer being used in the colour developing method contains the compounds each represented by the following formula [I]: ##STR1## According to the processing method, a colour photographic image having a satisfactory colour density can be obtained by a rapid development process and the excellent preservability for a long standing of the colour developer can be displayed.Type: GrantFiled: March 7, 1994Date of Patent: October 11, 1994Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kazuhiro Kobayashi, Shigeharu Koboshi, Masao Ishikawa, Masayuki Kurematsu, Yoko Matsushima
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Patent number: 5352572Abstract: A silver halide color photographic material comprises a combination of at least one yellow dye-forming coupler of the following general formula (1) with at least one discoloration inhibitor of special amide, phosphorus or hydrazine compound type to prevent the dye images, especially the yellow dye image, formed therein from discoloring or changing their colors; ##STR1## wherein X.sup.3 represents an organic residue completing a nitrogen-containing heterocyclyl group together with ##STR2## Y represents an aromatic or heterocyclic group; and Z represents a group capable of splitting off when the coupler represented by the foregoing formula reacts with the oxidation product of an aromatic primary amine color developing agent.Type: GrantFiled: July 17, 1992Date of Patent: October 4, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Seto, Akira Ogawa, Masakazu Morigaki
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Patent number: 5348845Abstract: Disclosed is a color image-stabilization processing solution for a silver halide color photographic material containing at least one of (a) an N-methylol compound represented by the following formula (I): ##STR1## wherein X represents a group of non-metallic atoms necessary to form a 1H-pyrazole ring or 1H-1,2,4-triazole ring together with the nitrogen atom;and (b) an N-methylol compound satisfying the condition that an equilibrium constant in water at room temperature is 2.times.10.sup.-2 mol/liter or less and a formaldehyde-releasing rate constant is 1.times.10.sup.-5 sec.sup.-1 or more. This solution permits one to dispense formaldehyde and its attendant risks. Also disclosed is a method for processing silver halide color photographic materials using such a solution.Type: GrantFiled: March 18, 1993Date of Patent: September 20, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Hiroshi Kawamoto, Yoshihiro Fujita, Shigeru Nakamura, Hiroyuki Watanabe, Morio Yagihara
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Patent number: 5342747Abstract: Disclosed is a silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer containing a pyrrolotriazole cyan coupler and a specific lipophilic compound. The color photographic material have improved color reproducibility and preservability.Type: GrantFiled: November 27, 1992Date of Patent: August 30, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Yasuhiro Yoshioka, Nobuo Seto
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Patent number: 5334493Abstract: A photographic processing solution for processing a silver halide color photographic light-sensitive material and a processing method using the same is disclosed. The photographic processing solution comprises formaldehyde and an amine compound having at least one --NH-- group in the --NH-- equivalent amount per liter of the photographic processing solution being greater than the molar concentration of formaldehyde in the photographic processing solution. The photographic processing solution is stable and has a reduced formaldehyde vapor pressure. The processing method provides excellent image stability.Type: GrantFiled: September 29, 1993Date of Patent: August 2, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Masakazu Morigaki, Hiroshi Kawamoto, Shigeru Nakamura, Morio Yagihara, Hiroyuki Watanabe
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Patent number: 5328815Abstract: A method of processing a silver halide color photographic material comprising the steps of: (1) developing a silver halide color photographic material having an alkali consumption of 3.0 mmol/m.sup.2 or less, the silver halide color photographic material comprising (a) a support; (b) at least two layers on at least one side of the support, the at least two layers containing (i) silver halide emulsions being sensitive to different wavelength bands from one another, the silver halide emulsions containing at least 90 mol % silver chloride and (ii) oil soluble couplers that form dyes on coupling with oxidized primary amine color developing agent; and (2) washing the color photographic material for about 45 seconds where water from the washing step is treated with a reverse osmosis membrane and reused in the washing step.Type: GrantFiled: April 12, 1993Date of Patent: July 12, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroshi Hayashi
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Patent number: 5324626Abstract: There is disclosed a silver halide color photographic material, which comprises a compound represented by formula (I) in a photosensitive layer or a non-photosensitive layer and a yellow dye-forming coupler represented by formula (II), (III), or (IV) in a blue-sensitive silver halide emulsion layer: ##STR1## wherein R.sub.1 represents an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a silyl group, an acyl group, a sulfonyl group, or an R.sub.o group; R.sub.2, R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each represent a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, an aryl group, a substituted amino group, an alkylthio group, an arylthio group, an R.sub.p group, an R.sub.q group, an R.sub.r group, an R.sub.s group, an R.sub.t group, or an R.sub.u group; R.sub.1a, R.sub.1b, and R.sub.1c have the same meaning as that of R.sub.1 ; R.sub.2 and R.sub.3, R.sub.3 and R.sub.4, or R.sub.5 and R.sub.Type: GrantFiled: July 7, 1992Date of Patent: June 28, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Akiko Shono, Nobuo Seto
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Patent number: 5322767Abstract: A silver halide color photographic material having at least three light-sensitive silver halide emulsion layers, each sensitive in a different wavelength region. At least one of the silver halide emulsion layers contains at least one adsorbable reducing compound represented by a hydroquinone containing a group capable of promoting adsorption to silver halide grains and a silver halide emulsion having a silver chloride content of at least 90 mol %. The photographic material is well adapted for rapid processing and maintains constant sensitivity with a change in humidity upon exposure and when stored for a long period of time prior to use.Type: GrantFiled: June 18, 1992Date of Patent: June 21, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoto Ohshima, Morio Yagihara
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Patent number: 5304463Abstract: There is disclosed a silver halide color photographic material having photosensitive layers and non-photosensitive layers adjacent to photosensitive layers on a base, which comprises a yellow dye-forming coupler selected from a group consisting of couplers represented by formulas (I), (II), and (III) and a compound represented by the following formula (IV): ##STR1## wherein R.sub.1 represents a monovalent group, Q represents a group of non-metallic atoms required to form together with the C a cyclic hydrocarbon group or a heterocyclic group that has a heteroatom of N, S, O, or P, and Y.sub.R represents a residue remaining after removing the acyl group ##STR2## from the coupler represented by formula (I), provided that R.sub.1 is not a hydrogen atom and does not bond to Q to form a ring, ##STR3## wherein X.sup.1, and X.sup.2 each represent an alkyl group, an aryl group, or a heterocyclic group, X.sup.Type: GrantFiled: May 28, 1992Date of Patent: April 19, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Takehiko Sato, Nobuo Seto
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Patent number: 5298368Abstract: Photographic coupler compositions comprise (a) a pyrazolone magenta dye-forming coupler compound, and (b) a sulfoxide compound in an amount sufficient to reduce continued coupling of the coupler compound during the bleach step of a color photographic process. The sulfoxide compound is of the formula ##STR1## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of straight and branched chain alkyl groups, alkenyl groups and alkylene groups; straight and branched chain alkyl groups, alkenyl groups and alkylene groups containing at least one substituent selected from the group consisting of alkoxy, aryloxy, aryl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, carbonamido and carbamoyl groups and halogen atoms; a phenyl group; and a phenyl group containing at least one substituent selected from the group consisting of alkyl, alkoxy, aryloxy, aryl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, carbonamido and carbamoyl groups and halogen atoms. Additionally, R.sub.1 and R.sub.Type: GrantFiled: April 23, 1991Date of Patent: March 29, 1994Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Edward Schofield, Stephen P. Singer
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Patent number: 5296338Abstract: The present invention relates to photographic processing, and specifically discloses the use of ethyl bis (polyethoxy ethanol) alkyl ammonium ethyl sulfate as the effective ingredient in an anti-static additive for photographic processing. The effective ingredient is combined with isopropanol and water in the ratio of 8 oz./2 oz./118 oz. (per gallon) to provide the desired anti-static coating to the photographic negatives.Type: GrantFiled: June 24, 1993Date of Patent: March 22, 1994Inventor: John A. Chester
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Patent number: 5284739Abstract: Photographic materials having incorporated sulphonyhdrazide color developing agents. Such photographic materials have at least two color-forming units, each of which has a silver halide emulsion layer and a photographic coupler. A ballasted heterocyclic sulphonhydrazide color developing agent is present in the material in droplets of a high boiling point solvent. A method of forming a photographic color image using such materials is also provided.Type: GrantFiled: November 10, 1992Date of Patent: February 8, 1994Assignee: Eastman Kodak CompanyInventors: David Clarke, John D. Goddard, Paul L. R. Stanley, Nigel E. Milner
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Patent number: 5275926Abstract: There is provided a silver halide color photographic light-sensitive material which is improved in sensitivity, fog and resistance to formalin, and capable of providing photoprins of the same hue irrespective of the type of a printer employed.Type: GrantFiled: September 11, 1992Date of Patent: January 4, 1994Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
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Patent number: 5273867Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a photographic layer includinga silver halide emulsion layer comprising silver halide grains and a binder and a specific pyrazolone type magenta coupler,a non-light-sensitive layer comprising a binder and a compound of Formula II being a liquid at 15.degree. C., and provided adjacently to the surface of said silver halide emulsion layer closer to sais support, anda layer provided at the outermost position of said photographic layer containing a compound represented by Formula II; ##STR1## wherein R.sub.11 and R.sub.12 are each a secondary or tertiary alkyl group and a number of carbon atoms Contained in the groups represented by R.sub.11 and R.sub.12 is 20 or more in total.Type: GrantFiled: June 15, 1992Date of Patent: December 28, 1993Assignee: Konica CorporationInventors: Masahiro Shibuya, Takashi Kadowaki
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Patent number: 5272044Abstract: Disclosed is a silver halide photographic material comprising a compound represented by the general formula (I), (II), or a salt thereof or a compound represented by the general formula (III), with these groups being defined as in the specification: ##STR1## also disclosed is a method for the processing of a silver halide photographic material, which comprises processing a silver halide photographic material in the presence of a compound represented by the general formula (I) or (II) or a salt thereof or a compound represented by the general formula (III).Type: GrantFiled: August 31, 1992Date of Patent: December 21, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Junji Nishigaki, Akihiko Ikegawa, Masaki Okazaki, Minoru Yamada, Nobuhiko Uchino
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Patent number: 5270148Abstract: A processing solution for a silver halide color photographic material, wherein said solution contains at least one kind of a compound represented by formula (I) and at least one kind of a compound represented by formula (A); ##STR1## wherein X represents a nonmetallic atomic group necessary for forming a nitrogen-containing heteroaromatic ring; ##STR2## wherein X.sub.0 represents a non metallic atomic group necessary for forming a nitrogen-containing heteroaromatic ring; and R.sub.a and R.sub.b, which may be same or different, each represents an alkyl group or an alkenyl group and R.sub.a and R.sub.b may be bonded each other to form a 4- to 8-membered ring, and a method for processing a silver halide color photographic material with the above processing solution.Type: GrantFiled: April 29, 1992Date of Patent: December 14, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Shigeru Nakamura, Yoshihiro Fujita, Hiroshi Kawamoto
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Patent number: 5264332Abstract: There is disclosed a silver halide color photographic material containing a support having thereon three color-forming layers, which comprises, in said color-forming silver halide emulsion layers, high-silver-chloride grains, silver halide grains in the cyan color-forming layer being spectrally sensitized with a red-sensitive sensitizing dye having a prescribed reduction potential, and/or, in the cyan color-forming layer, an oil-soluble cyan coupler that cause coupling reaction with the oxidized product of an aromatic primary amine developing-agent to form a nondiffusible dye, a compound represented by formula (I) or (II), and a compound represented by formula (II) or (IV). ##STR1## wherein R.sub.1 and R.sub.3 each represent a hydrogen atom, an alkyl group, or a halogen atom, R.sub.2, R.sub.4, R.sub.5, R.sub.7, and R.sub.Type: GrantFiled: October 8, 1991Date of Patent: November 23, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeaki Otani, Hiroyuki Yoneyama
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Patent number: 5264330Abstract: There is disclosed a method for processing a silver halide color photographic material containing a yellow coupler represented by formula (Y) with a color developer containing an aromatic primary amine color developing agent and a polymer of vinyl alcohol or vinyl pyrrolidone series. The disclosure described provides a method for development processing wherein yellow stain and processing nonuniformity in a running processing can be prevented effectively.Type: GrantFiled: March 13, 1991Date of Patent: November 23, 1993Assignee: Fuji Photo Film Co. Ltd.Inventors: Kazuaki Yoshida, Takatoshi Ishikawa
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Patent number: 5258278Abstract: Photographic coupler compositions comprise a pyrazolotriazole magenta dye-forming coupler and an performance-improving amount of a carbonamide compound. Improved performance is indicated by increased photographic speed, improved light stability of the resulting magenta dye and/or desired hypsochromic hue shifts in the resulting magenta dye. Color photographic materials and methods employ the coupler compositions.Type: GrantFiled: July 15, 1991Date of Patent: November 2, 1993Assignee: Eastman Kodak CompanyInventors: Paul P. Merkel, Edward Schofield
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Patent number: 5256524Abstract: Disclosed is a processing method for silver halide color photographic light-sensitive material in which a silver halide color photographic light-sensitive material is processed with a processing solution capable of fixation and then a part or all of the overflow from stabilizer is allowed to enter in the processing solution capable of fixing wherein said silver halide color photographic light-sensitive material contains a coupler represented by Formula 2eq-1 and said stabilizer contains substantially no formaldehyde but contains a compound represented by Formula I or Formula II: ##STR1##R.sub.1 --O--(R.sub.2 --O).sub.m --X.sub.1 (Formula I) ##STR2## The total amount of silver coated in said silver halide color photographic light-sensitive material is not less than 3 g and not more than 10 g per m.sup.Type: GrantFiled: September 3, 1991Date of Patent: October 26, 1993Assignee: Konica CorporationInventors: Hiroshi Yoshimoto, Shigeharu Koboshi, Masao Ishikawa, Mayumi Emoto
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Patent number: 5254450Abstract: A photographic paper support is prepared formed by the following method: forming a paper sheet and drying it to about 10 percent water; applying an aqueous solution of hydrophobically substituted amylose starch to both sides of the sheet; drying this sheet to below 5 percent water; applying an aqueous solution of the hydrophobically substituted amylose starch to both sides of the sheet; drying this sheet to below about 10 percent water; and extruding a layer of polylefin on both sides of the paper sheet.A silver halide color photographic reflection print element is formed by coating at least one color-forming silver halide emulsion layer on a photographic paper support prepared by the above described method.Type: GrantFiled: December 9, 1992Date of Patent: October 19, 1993Assignee: Eastman Kodak CompanyInventors: David J. Lacz, Douglas L. Herrmann, Todd R. Skochdopole, Anita M. Fees
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Patent number: 5254444Abstract: A photographic processing composition containing at least one compound represented by formula ##STR1## wherein R, R.sub.1 and R.sub.2 each represent a hydrogen atom, an alkyl group or an aryl group; and L.sub.1 represents an alkylene group or an arylene group. Also disclosed a processing composition for a silver halide color photographic material containing a metal chelate compound formed from a compound represented by formula (I) and a metal salt selected from salts of Fe(III), Mn(III), Co(III), Rh(II), Rh(III), Au(III), Au(II) and Ce(IV). A method is also disclosed for processing a silver halide photographic material with the processing compositions.Type: GrantFiled: June 25, 1992Date of Patent: October 19, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Okada, Shigeru Nakamura
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Patent number: 5246820Abstract: A photographic element having improved granularity contains a dye-forming coupler containing a carbamic acid precursor capable of being converted into a carbamic acid group during processing, and wherein after processing the carbamic acid group decomposes, leaving the dye substantially non-diffusable.Type: GrantFiled: March 3, 1992Date of Patent: September 21, 1993Assignee: Eastman Kodak CompanyInventors: Jared B. Mooberry, James J. Seifert, Stephen P. Singer
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Patent number: 5246822Abstract: The present invention is directed to a method of processing imagewise exposed photographic color silver halide materials in which, after the dye image is formed, the photographic material is treated with an aqueous stabilizing solution containing iodide ions but no fixing agent.Type: GrantFiled: August 3, 1992Date of Patent: September 21, 1993Assignee: Eastman Kodak CompanyInventors: Gareth B. Evans, John R. Fyson, Peter D. Marsden
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Patent number: 5244776Abstract: A method of forming a color image in a silver halide color photosensitive material comprisingexposing the photosensitive material in a scanning exposure system for a time period shorter than about 10.sup.-4 second per picture element, and thereaftersubjecting the exposed material to development processing for a total processing time of about 90 seconds or less, inclusive of drying time,the photosensitive material comprising a support having thereon at least three silver halide emulsion layers differing in color sensitivity, at least two of which have a spectral sensitivity maximum in the wavelength region of about 670 nm or longer, wherein at least one of the silver halide emulsion layers comprises (a) at least one coupler capable of developing color upon coupling reaction with the oxidized form of an aromatic amine compound and (b) at least one compound of general formula (I) or (II): ##STR1## wherein the variables are as defined in the specification.Type: GrantFiled: February 5, 1991Date of Patent: September 14, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Kiyoshi Kawai
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Patent number: 5238793Abstract: A method of processing a photographic element having a layer comprising a silver halide emulsion sensitized with a cyanine dye where the dye is present in the processing solution at a concentration sufficient to cause formation of solid dye particles. The method comprises contacting the element with at least one processing solution in the presence of an effective amount of a dye solubilizing compound of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are each independently selected from the group consisting of ##STR2## halogen, hydrogen, hydroxy, substituted or unsubstituted alkyl, substituted or unsubstituted aryl, substituted or unsubstituted alkoxy, and sulfo,R.sub.5 and R.sub.6 are each independently selected from the group consisting of hydrogen, substituted or unsubstituted alkyl, and substituted or unsubstituted aryl, with the proviso that the dye solubilizing compound comprises at least four solubilizing groups as substituents on R.sub.5 's or R.sub.Type: GrantFiled: May 8, 1989Date of Patent: August 24, 1993Assignee: Eastman Kodak CompanyInventor: Harry A. Hoyen, Jr.
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Patent number: 5238789Abstract: A method for forming an image, comprising developing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one blue sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one red-sensitive silver halide emulsion layer with a color developer containing at least one aromatic primary amine color developing agent, wherein the red-sensitive silver halide emulsion layer contains a high silver chloride silver halide emulsion having a silver bromide content of from 0.5 to 6 mol%, and the color developer contains from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/l of chloride ion and from 3.0.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/l of bromide ion. The method provides an image having a high maximum density and a low minimum density at high sensitivity while markedly suppressing variations in photographic characteristics, particularly of minimum density, even in rapid and continuous processing.Type: GrantFiled: December 9, 1991Date of Patent: August 24, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Naoto Ohshima
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Patent number: 5232821Abstract: Photographic coupler compositions comprise (a) a magenta dye-forming coupler compound, and (b) a sulfoxide compound or a sulfone compound in an amount sufficient to improve the light stability of a magenta dye formed from the magenta dye-forming coupler compound. The sulfoxide compound is of the formula ##STR1## and the sulfone compound is of the formula ##STR2## wherein R.sub.1 and R.sub.Type: GrantFiled: April 1, 1991Date of Patent: August 3, 1993Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Edward Schofield
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Patent number: 5225320Abstract: Method of processing a silver halide color photosensitive material which comprises the steps of a developing process, a bleach-fixing solution or a fixing solution, and then, without washing with water, treated with a stabilizing solution. The method is characterized in that the silver halide color photo sensitive material comprises a high boiling point organic solvent having a dielectric constant of 3.5 or more and the stabilizing solution comprises silicone having the surface tension 20 to 60.Type: GrantFiled: April 22, 1992Date of Patent: July 6, 1993Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Satoru Kuse, Shigeharu Koboshi