Stabilizing Patents (Class 430/428)
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Patent number: 4948710Abstract: A method of continuously processing an imagewise exposed silver halide color photographic light-sensitive material is described, in which subsequent to a bleach-fixing step or bleaching and fixing steps the material is washed in a water washing step in the presense of at least one compound represented by general formula (I): ##STR1## wherein M is a hydrogen atom, a lithium atom, a sodium atom, a potassium atom or an ammonium ion and each M may be the same or different.This method permits great reduction of the amount of water used in the washing step in the processing of silver halide color photographic light-sensitive materials.Type: GrantFiled: July 17, 1989Date of Patent: August 14, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Shinzo Kishimoto
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Patent number: 4939073Abstract: A method of stabilizing a light-sensitive silver halide color photographic material. A developed silver halide color photographic material is contacted, subsequent to a processing step in a bleach-fixing bath or a fixing bath and substantially accompanied by no washing step, at the last stage of color processing with a dye stabilizing solution adjusted to a pH value between 3.0 and 9.0 and containing a soluble complex salt of an iron ion obtained by reacting an iron ion with a compound selected from the group consisting of ##STR1## The soluble complex salt of an iron ion is present in the dye stabilizing solution at a concentration of at least 1.times.10.sup.-4 mol/l.Type: GrantFiled: October 6, 1989Date of Patent: July 3, 1990Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Masayuki Kurematsu
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Patent number: 4895786Abstract: In a processing method for silver halide color photosensitive material in which silver halide color photosensitive material is treated to produce a color dye image with a processing solution that has a fixing ability, and subsequently is not washed but treated with a washless stabilizing solution, the improvement comprising treating said silver halide color photosensitive material with a washless stabilizing solution that contains a triazinylstilbene optical brightening agent in the presence of an amount sufficient to stabilize the dye image and reduce staining of the photosensitive material of at least one compound represented by General Formula (I), (II), (II') or (II"): ##STR1##Type: GrantFiled: May 11, 1989Date of Patent: January 23, 1990Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4886737Abstract: Photographically produced black and white images (silver images) are stabilized against subsequent destruction of the image silver, in particular due to discoloration, by treating the finished silver image with an aqueous after treatment bath containing aminotetrazole or a mercaptotetrahydrotriazine.Type: GrantFiled: September 19, 1988Date of Patent: December 12, 1989Assignee: Agfa-Gevaert AktiengesellschaftInventors: Werner Berthold, Paul Marx, hlschlager
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Patent number: 4859575Abstract: Disclosed is a method for processing of a photographic material which comprises carrying out stabilizing processing of a photographic material with a stabilizing solution substantially without washing with water subsequent to the processing with a processing having fixing ability, wherein said stabilizing solution is subjected to electrodialysis treatment.Type: GrantFiled: August 24, 1988Date of Patent: August 22, 1989Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4859574Abstract: A process for stabilizing the magenta dye image in a photographic color element comprises the steps of contacting the element with an aqueous stabilizing solution containing a water-soluble N-methylol compound and an alkaline buffering agent, subjecting the stabilized element to an aqueous wash to remove scum formed by the treatment with the stabilizing solution, and drying the element at an elevated temperature.Type: GrantFiled: March 15, 1988Date of Patent: August 22, 1989Assignee: Eastman Kodak CompanyInventor: Thomas M. Gormel
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Patent number: 4855217Abstract: A processing method for silver halide color photosensitive material in which said silver halide color photosensitive material is treated with a processing solution that has a fixing ability, and then is not washed, but treated with a washless stabilizer solution, characterized in that said silver halide color photosensitive material is treated with said washless stabilizer in the presence of at least one compound among compounds represented by General Formula [1], [II], [II'], or [II"] shown below; and that said washless stabilizer contains more than 20 mg/l silver ion, and at least one aldehyde compound: ##STR1##Type: GrantFiled: March 18, 1988Date of Patent: August 8, 1989Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4855218Abstract: A method for processing silver halide photographic lightsensitive material in which there are used replenishers for water washing and/or stabilization processes in such manner that the concentrations of calcium and magnesium compounds present in the replenishers are not more than 5 mg/l on the basis of elemental calcium and magnesium respectively, and a part or whole of the overflow from the water washing and/or stabilization process is introduced into a process preceding the water washing and/or stabilization processes. This method makes it possible to save water, to diminish the amount of waste liquor and to make effective use of components contained in processing solutions, without impairing any properties of lightsensitive materials to be processed.Type: GrantFiled: February 10, 1988Date of Patent: August 8, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Akira Abe
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Patent number: 4849333Abstract: A method is disclosed for the processing of an imagewise exposed silver halide color photographic material, wherein at least one of wash water and a stabilizing solution used in a step subsequent to a bleach-fixing step or a fixing step following a bleaching step contains at least one compound represented by formula (I) ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 each represents a hydrogen atom, a halogen atom, an alkyl group, a substituted alkyl group, an acyl group, a hydroxy group, an amino group, a nitro group, a carboxy group, or a sulfo group.Type: GrantFiled: April 18, 1988Date of Patent: July 18, 1989Assignee: Fuji Photo Cilm Co., Ltd.Inventor: Yoshihiro Fujita
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Patent number: 4845019Abstract: The methods and apparatus disclosed herein provide commercially viable means to selectively improve the input and output characteristics of photosensitive materials, especially the output contrast variables. The present invention allows commercially available photosensitive material such as the high contrast Ilford Cibachrome Copy CCO Paper.RTM. to display dramatically improved color balance and contrast range characteristics when making reproductions from slides or prints. Recreational, professional and military photo duplication techniques are greatly improved by the present invention.Type: GrantFiled: October 29, 1987Date of Patent: July 4, 1989Assignee: Visicon Laboratories, Inc.Inventor: Quentin D. Vaughan, IV
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Patent number: 4845015Abstract: An image stabilizer for silver halide photographic materials which contains a water-soluble bismuth compound is disclosed. In a preferred embodiment, the stabilizer also contains a water soluble chelating agent capable of forming a bismuth complex or its salt having a stability constant (-log KMA) of 3 or more, said constant being represented by formula (I):KMA=([MA]/[M] [A]) (I)wherein M is a bismuth ion and A is a complex forming anion. By using this stabilizer, the processed dye image is kept stable over an extended period and the occurrence of yellow stain in the non-image area is inhibited. The stabilizer is applicable not only to color photographic materials but also to black-and-white materials.Type: GrantFiled: October 27, 1987Date of Patent: July 4, 1989Assignee: Konishiroku Photo Industry Co,., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4839273Abstract: In a process for development, fixing, and washing or stabilization of a silver halide photographic light-sensitive material by means of an automatic developing machine, is provided, which process comprises supplying to a developing bath and/or a fixing bath a concentrated developing solution and/or a concentrated solution having a fixing capacity, respectively, and water which has been treated by at least one antifungal means selected from the group consisting of irradiation with ultraviolet rays, irradiation with magnetic fields, processing with ion exchange resins, and incorporation of at least one compound selected from the group consisting of aminopolycarboxylic acids and phosphonic acids. In a preferred embodiment, the amount of wash water or stabilizing sollution to be refilled is 3 l or less (including 0 l) per 1 m.sup.2 of light-sensitive material, and the water processed by antifungal means contained in the stock tank is also used as the wash water or stabilizing solution.Type: GrantFiled: October 2, 1987Date of Patent: June 13, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Minoru Yamada, Takashi Toyoda, Kunio Seto
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Patent number: 4830948Abstract: A method of forming color photographic images where a silver halide color photographic material containing a coupler which forms a dye by reaction with the oxidation product of an aromatic primary amine developing agent and containing an acid-processed gelatin in an amount of 25% by weight or more of the amount of the total gelatin coated is color developed, desilvered and then rinsed in water and/or stabilized. The total of the processing time of said desilvering, rinsing-in-water and stabilization steps is controlled to be 3 minutes or less, and/or the amount of replenisher added to the rinsing-in-water bath and stabilization bath is controlled to be from 0.5 to 50 times of the amount of the processing solution which is brought into the rinsing-in-water bath and stabilization bath from the desilvering bath together with the material which is being processed.Type: GrantFiled: March 17, 1988Date of Patent: May 16, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Genichi Furusawa, Takeshi Hirose
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Patent number: 4830949Abstract: An ecologically advantageous method for processing an exposed photographic silver halide emulsion layer-bearing material involves the steps of:(A) developing in an aqueous alkaline liquid an image-wise exposed silver halide emulsion layer of said material by means of at least one diffusible developing agent in the absence of such an amount of silver halide solvent that would reduce the coverage of developed silver metal (Ag/m2) by more than 20%,(B) bringing the emulsion layer side of said developed photographic material while still wet by the liquid from step (A) into contact with a water-absorbing processing layer of a receptor element that contains in an organic hydrophilic colloid binder a silver halide reducing agent and silver halide complexing agent and in waterpermeable relationship therewith physical development nuclei,(C) maintaining said photographic material and receptor compound into said receptor element until removal of undeveloped silver halide from the exposed silver halide emulsion layer is sType: GrantFiled: April 29, 1988Date of Patent: May 16, 1989Assignee: AGFA-Gevaert N.V.Inventor: Gino L. De Rycke
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Patent number: 4826757Abstract: A process for processing silver halide photographic materials by processing, after development and fixing, the silver halide photographic materials with wash water or a stabilizing solution using a replenisher thereof of not more than 2 liters (including 0) per square meter of the photographic material and drying using a roller transporting type automatic processor, wherein the swelling percentage of the silver halide photographic material is not more than 200% and the total processing time from development to drying is not longer than 70 seconds.Type: GrantFiled: March 18, 1988Date of Patent: May 2, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Minoru Yamada, Kunio Seto
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Patent number: 4820623Abstract: A method for processing a silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer and containing a magenta dye forming coupler represented by formula (I) shown below and a compound represented by formula (II) shown below in the same layer is described, wherein the silver halide color photographic material is subjected to color development using a replenisher for a color developing solution, whose concentration of bromide is not more than 3.times.10.sup.-3 mol per liter and the amount of the replenisher for a color developing solution is not more than 900 ml per m.sup.2 of the silver halide color photographic material, wherein ##STR1## wherein R.sub.1 represents an aromatic group, an aliphatic group or a heterocyclic group; R.sub.2 represents a substituent; Za, Zb, Zc and Zd, which may be the same or different, each represents an unsubstituted methine group, a substituted methine group or --N.dbd.; and formula (II) is represented by(R'--COO.sup.Type: GrantFiled: February 3, 1988Date of Patent: April 11, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshio Koshimizu, Keiji Mihayashi
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Patent number: 4804616Abstract: The present invention relates to a method for continuously processing a color reversal photographic material. After black and white development, the color reversal photographic material is rinsed in a bath wherein the replenishing amount per unit area of the photographic material is 3 to 50 times as much as the amount of processing solution carried over from the preceding bath in terms of volume ratio and the pH is 9.5 or below.Type: GrantFiled: November 19, 1987Date of Patent: February 14, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinji Ueda, Junya Nakajima
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Patent number: 4804617Abstract: This invention provides a processing method for exposed silver halide color photosensitive materials, which enables sufficient desilverization to be performed in a short time and highly photographic quality to be obtained. The processing method of this invention comprises the steps of: exposing silver halide color photosensitive material containing 5-pyrazolone-type or pyrazoloazole-type 2-equivalent magenta coupler to light; color developing said photosensitive material; and desilverizing said photosensitive material, wherein said desilverizing step uses a bleaching bath containing ferric complex salt aminopolycarboxylate, and thereafter uses a bleaching-and-fixing bath containing ferric complex salt aminopolycarboxylate.Type: GrantFiled: July 10, 1987Date of Patent: February 14, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshihiro Nishikawa, Akira Abe
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Patent number: 4800153Abstract: There is provided a method for processing a silver halide color photographic material which comprises processing the silver halide color photographic material with a color developer containing an aromatic primary amine color developing agent and a specific amino compound. According to this method the stability and color forming property of a color developer are improved so that the increased fogging problem in continuous processing is lessened and the processing time is shortened. There is also provided a color developer composition which can be used as the developer, as it is or after adjusting its composition.Type: GrantFiled: July 17, 1987Date of Patent: January 24, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Morimoto, Takatoshi Ishikawa
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Patent number: 4797352Abstract: A method of processing an imagewise exposed silver halide photographic light-sensitive material characterized in that said material is developed and then processed with a first liquid capable of fixing and is, in succession, processed with a second liquid capable of stabilizing, without applying any intervening washing step, and containing at least one of the following compounds:(A) a guanidine compound represented by ##STR1## (B) a morpholine compound; (C) a benzimidazole carbamate compound represented by 2-carbonyl-amino-benzimidazole;(D) a quaternary onium salt compound;(E) a triazine compound represented by the following Formula (1) or (2) ##STR2## wherein R is an alkyl group and R' is a halogen, amino group, alkyl group, or thioether group; or(F) an oxazolone compound containing at least one each of N, O, and C.dbd.O in the five-membered ring thereof;and wherein a ratio of a volume of said first liquid to a volume of said second liquid is not less than 1/2,000.Type: GrantFiled: June 19, 1986Date of Patent: January 10, 1989Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Masayuki Kurematsu
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Patent number: 4789626Abstract: A method for processing a silver halide color photographic material by fixing or bleach-fixing the material and immediately thereafter subjecting it to washing or stabilization, wherein (A) the silver halide color photographic material contains at least one of sensitizing dyes represented by the formulae (I) and (II) specified in the specification and at least one two-equivalent magenta polymer coupler which is derived from a specified monomer coupler, and (B) the amount of a replenisher in the washing step and/or the stabilization step falls within the range of 3 to 50 times, based on unit area of the material after being processed, the amount of each processing solution having been carried over from the preceding bath.Type: GrantFiled: December 12, 1986Date of Patent: December 6, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Kei Sakanoue, Shinzo Kishimoto, Tadashi Ikeda
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Patent number: 4782013Abstract: This invention is directed to a photographic element containing a radiation-sensitive silver halide emulsion layer and a macrocyclic thia or selena ether compound which also comprises oxygen atoms. These macrocyclic compounds are improved silver halide ripening agents.Type: GrantFiled: July 23, 1987Date of Patent: November 1, 1988Assignee: Eastman Kodak CompanyInventors: Arthur H. Herz, Roger L. Klaus
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Patent number: 4778748Abstract: A method for processing a light-sensitive silver halide photographic material, which comprises processing a light-sensitive silver halide photographic material subjected to imagewise exposure with a processing solution having fixing ability, and thereafter processing the material with a first stabilizing solution having a surface tension of 20 to 78 dyne/cm and a second stabilizing solution having a surface tension of 8 to 60 dyne/cm substantially without performing the water washing step.Type: GrantFiled: January 22, 1987Date of Patent: October 18, 1988Assignee: Konishiroku Photo Industries, Co., Ltd.Inventors: Satoru Kuse, Shigeharu Koboshi, Kazuhiro Kobayashi
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Patent number: 4778743Abstract: Disclosed is a method for processing a light-sensitive silver halide color photographic material, which comprises including at least the step of color developing, the step of processing with a liquor having fixing ability and the step of processing with a washing solution substitute as the final processing step, after imagewise exposure of a light-sensitive silver halide color photographic material containing at least one silver halide emulsion layer on a support, characterized in that at least one layer of the silver halide emulsion layer contains at least one coupler selected from the magenta couplers and the cyan couplers; washing solution substitute contains at least one compound selected from the group consisting of from 2.0.times.10.sup.-5 to 2.5.times.10.sup.-2 mol per liter of the washing solution substitute of the aldehydes, from 2.0.times.10.sup.-5 to 8.0.times.10.sup.-2 mol per liter of the washing solution substitute of the aldehyde derivatives and from 2.0.times.10.sup.-5 to 8.0.times.10.sup.Type: GrantFiled: April 27, 1987Date of Patent: October 18, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masao Ishikawa, Shigeharu Koboshi, Masayuki Kurematsu
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Patent number: 4775612Abstract: A method for processing a silver halide color photographic material is disclosed, wherein a washing bath is replenished with water in an amount of from 2 to 50 times the volume of the preceding bath which is carried over with the photographic material into the washing bath per unit area of the photographic material to be processed, and washing in the washing bath is carried out in the presence of at least one compound represented by formula (I): ##STR1## wherein A represents a n-valent aliphatic, aromatic or heterocyclic linking group, wherein when n is 1, A represents a monovalent aliphatic, aromatic, or heterocyclic group, or a hydrogen atom; X represents --O--, --S--, or ##STR2## R.sup.1 and R.sup.2 each represents substituted or unsubstituted lower alkyl group; R.sup.3 represents a lower alkylene group; R.sup.4 represents a lower alkyl group; or R.sup.1 and R.sup.2, R.sup.1 and A, R.sup.1 and R.sup.3, R.sup.2 and A, or R.sup.2 and R.sup.Type: GrantFiled: December 8, 1986Date of Patent: October 4, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Jun Arakawa, Yasushi Nozawa
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Patent number: 4775614Abstract: An ecologically advantageous method for fixing a developed photographic silver halide emulsion layer material which involves the steps of:(A) developing an image-wise exposed silver halide emulsion layer with a developing agent in the presence of an aqueous alkaline liquid,(B) bringing the developed photographic material while still wet with the liquid of step (A) with its silver halide emulsion layer side in intimate contact with a water-absorbing layer of a receptor element, which layer comprises an organic hydrophilic colloid binder, a silver halide complexing agent, and in dispersed form a metal sulphide as silver ion scavenging agent,(C) maintaining said photographic material and receptor element in contact to allow the transfer of dissolved complexed silver compound into said receptor element, and(D) separating the photographic material from the receptor element, andwherein said water-absorbing layer contains said metal sulphide in colloidal form with an average grain size below 0.1 .mu.Type: GrantFiled: October 20, 1986Date of Patent: October 4, 1988Assignee: Agfa-Gevaert N.V.Inventor: Gino L. De Rycke
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Patent number: 4767642Abstract: This invention is a method for preventing sticking of a resin plate surface by coating the solution of binder and photopolymerizable monomer on the surface of a photosensitive resin composed of binder, photopolymerizable monomer, and photopolymerization initiator, developing relief images by a photomechanical process, and then by drying the coating solution.Type: GrantFiled: February 10, 1987Date of Patent: August 30, 1988Assignee: Photopoly Ohka Co., Ltd.Inventors: Takaaki Shimizu, Katsuyuki Ota, Toshimi Aoyama, Setsuo Nojima
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Patent number: 4764453Abstract: A method of processing a silver halide color photographic material is disclosed. This method comprises developing said photographic material, removing the residual image-forming silver, treating, in the substantial final stage of color processing, the material with an aqueous solution containing a compound which releases ammonium ions in the solution, thereafter drying the material at a temperature not lower than 30.degree. C., and adjusting the pH of the surface of the dried emulsion layer to between 3.0 and 6.8.Type: GrantFiled: June 12, 1986Date of Patent: August 16, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Masayuki Kurematsu
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Patent number: 4760015Abstract: Photographically produced black-and-white images (silver images) are stabilized against subsequent destruction of the silver image, in particular against the occurrence of so-called microspot defects, by treatment of the finished silver image with an aqueous after-treatment bath containing an amino-1,2,4-triazole.Type: GrantFiled: April 13, 1987Date of Patent: July 26, 1988Assignee: Agfa Gevaert AktiengesellschaftInventors: Werner Berthold, Gunther Mahlberg, Paul Marx, Hans hlschlager
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Patent number: 4749642Abstract: A method for processing a light-sensitive silver halide color photographic material by processing a light-sensitive silver halide color photographic material with a processing solution having a fixing ability and subsequently processing the fixed material with a water washing-substitutive stabilizing solution substantially without carrying out washing with water, which comprises carrying out processing with the water washing-substitutive stabilizing solution which has been subjected to concentration regulating treatment in the presence of at least one of the compounds represented by the following formulae [I], [II], [II'] and [II"]: ##STR1##Type: GrantFiled: February 26, 1987Date of Patent: June 7, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4746598Abstract: A method of processing a light-sensitive silver halide color photographic material by processing a light-sensitive silver halide color photographic material wherein generation of stain can be suppressed at unexposed portions even when prolonged continuous processing is conducted and storage stability of the cyan dye under high temperature and high humidity is improved.Type: GrantFiled: February 26, 1987Date of Patent: May 24, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4713313Abstract: Compounds which include a quaternary group connected to a pyrimidine residue through a linkage are disclosed. These compounds are useful as silver halide solvents in photographic products, processes and compositions.Type: GrantFiled: May 2, 1984Date of Patent: December 15, 1987Assignee: Polaroid CorporationInventors: James R. Bartels-Keith, deceased, Anthony J. Puttick, Lloyd D. Taylor
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Patent number: 4687731Abstract: A method of processing a light-sensitive silver halide color photographic material comprising color developing an imagewise exposed light-sensitive silver halide color photographic material comprising a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a base, said blue-sensitive silver halide emulsion layer containing a high speed reactive yellow coupler having a relative coupling reaction rate of not less than 0.3, followed by processing with a processing solution having a fixing ability and then processing with a stabilizing solution without a substantial washing step, said stabilizing solution containing a sulfite in an amount of at least 1.times.10.sup.-3 mole per 1 liter of said stabilizing solution. The processed photographic material has superior stability of the dye image.Type: GrantFiled: November 4, 1985Date of Patent: August 18, 1987Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masao Ishikawa, Shigeharu Koboshi, Satoru Kuse
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Patent number: 4681835Abstract: A method of processing a silver halide color photographic material, which comprises processing a photographic material containing at least one pyrazoloazole type magenta coupler represented by the general formula (I) in a final bath containing a soluble iron salt in an amount of at least 1.times.10.sup.-4 mol/l, whereby marked improvements in stabilization of color images, especially cyan dye images and prevention of yellow stain are achieved: ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituent, X represents a hydrogen atom or a group capable of being eliminated by the coupling reaction with an oxidation product of an aromatic primary amine developing agent, and Z.sub.a, Z.sub.b and Z.sub.c each represents methine group, a substituted methine group, .dbd.N-- or --NH--, provided that one of the Z.sub.a -Z.sub.b and Z.sub.b -Z.sub.c bonds is a double bond and the other is a single bond, in which when it represents a double bond the Z.sub.b -Z.sub.Type: GrantFiled: December 12, 1985Date of Patent: July 21, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Kiyoshi Nakazyo
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Patent number: 4657846Abstract: A silver halide photographic light-sensitive materials are described. In silver halide photographic printing paper comprising at least one silver halide photographic emulsion layer applied to a water impermeable reflective base, the printing paper of the present invention is in the improvement wherein said silver halide emulsion layer is spectrally sensitized with at least one cyanine dye represented by general formulae I and II, and an emulsified dispersion or latex dispersion of a water insoluble fluorescent whitening agent contained in a hydrophilic vehicle of at least one layer applied to the base on the same side as said silver halide emulsion layer: ##STR1## wherein Y.sub.1 and Y.sub.2 each represents an O atom, --N--R.sub.7 or a S atom, wherein R.sub.7 represents a lower alkyl group, A represents H or a lower alkyl group having 4 or less carbon atoms, R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents --H, --CH.sub.3, --OCH.sub.3, --C.sub.2 H.sub.5, --OC.sub.2 H.sub.5, --CN, --Cl, --F, --CF.sub.Type: GrantFiled: December 20, 1984Date of Patent: April 14, 1987Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadayoshi Kokubo, Tadashi Ikeda, Keiichi Adachi, Masaki Okazaki, Tetsuo Yoshida
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Patent number: 4629683Abstract: A method of processing a photographic material which contains a light-sensitive silver halide emulsion layer having associated therewith a blocked photographic agent capable of releasing a photographically useful agent by ring cleavage of a 4- to 7-membered ring containing at least one carbonyl group in the presence of a hydroxylamine, whereby both high stability of the photographic material upon storage and timely release of the photographically useful agent upon processing are achieved.Type: GrantFiled: April 20, 1984Date of Patent: December 16, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Isamu Itoh, Mitsunori Ono, Keiji Mihayashi, Seiji Ichijima, Hidetoshi Kobayashi
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Patent number: 4623613Abstract: In a method of processing a light-sensitive silver halide photographic material by processing the light-sensitive silver halide photographic material with a processing solution having fixing ability and subsequently processing it with a water washing-substitutive stabilizing solution substantially without carrying out water washing, the improvement wherein the concentration of a sulfite in said water washing-substitutive stabilizing solution is controlled to be 1.0.times.10.sup.-5 mole/liter or more when the concentration of silver compounds in said water washing-substitutive stabilizing solution is from 1/2 to 1/1000-fold of the concentration of silver compounds in the preceding bath. According to the method of this invention, generation of sulfiding and mold or bacteria can be prevented, whereby dye images without drop out portion can be obtained.Type: GrantFiled: December 18, 1985Date of Patent: November 18, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masao Ishikawa, Shigeharu Koboshi, Satoru Kuse
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Patent number: 4618569Abstract: Disclosed is a method for processing of a photographic silver halide photographic material which comprises carrying out stabilizing processing of a photographic silver halide photographic material directly with a liquid stabilizer substantially without passing through the step of washing with water subsequent to the processing step having fixing ability, wherein processing is conducted while permitting the liquid stabilizer to contact an ion-exchange resin and/or at least a part of the overflow liquid of said liquid stabilizer after contacting the ion-exchange resin is used as the liquid stabilizer.Type: GrantFiled: April 10, 1985Date of Patent: October 21, 1986Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi
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Patent number: 4612277Abstract: An image-receiving element for a silver salt diffusion transfer process is disclosed, wherein the element comprises an image stabilizing agent precursor having an inactive group capable of being removed upon contact with an alkaline processing composition.Type: GrantFiled: July 11, 1984Date of Patent: September 16, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Inagaki, Katsusuke Endo
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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: 4607001Abstract: Radiation sensitive silver halide photographic elements are disclosed which are protected from fog by aromatic tellurochalcogenides. The 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: Roger Lok, Wolfgang H. H. Gunther
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Patent number: 4605611Abstract: A method for processing a silver halide color photographic material by subjecting a light-exposed silver halide color photographic material to a color development and then subjecting it to bleach processing and fix processing or to blix processing, which comprises performing said bleach processing or blix processing using a bleach bath or a blix bath containing a ferric ion complex salt as a bleaching agent, said bleach bath or blix bath, or a prebath for said bath containing at least one of compounds represented by the following general formula (I) or (II); ##STR1## wherein, X represents a hydrogen atom, ##STR2## Y.sup..crclbar. represents an anion; Q represents an atomic group necessary for forming a quaternary nitrogen-containing unsaturated heterocyclic ring; n represents an integer of 1 to 5; R.sup.1, R.sup.2, R.sup.6 and R.sup.8, which may be the same or different, each represents a hydrogen atom or a lower alkyl group; R.sup.3, R.sup.4 and R.sup.Type: GrantFiled: August 20, 1985Date of Patent: August 12, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeru Ohno, Shinzo Kishimoto
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Patent number: 4596764Abstract: A method of processing an image-wise exposed silver halide color photographic material is described, having on a support at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one blue-sensitive silver halide emulsion layer, the total amount of silver iodide contained in the light-senstive silver halides in said light-sensitive silver halide emulsion layers being higher than 4.0.times.10.sup.-3 mole/m.sup.2, which comprises processing the color photographic material further containing in a protective layer thereof a super fine grain silver halide, having a mean grain size of less than 0.2 .mu.Type: GrantFiled: July 3, 1985Date of Patent: June 24, 1986Assignee: Fuji Photo Film Co., Ltd.Inventor: Shingo Ishimaru
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Patent number: 4590150Abstract: A method for continuously development processing an imagewise exposed silver halide color photographic light-sensitive material, comprising the use in a washing step or stabilization step subsequent to bleaching and fixing steps or a bleach-fixing step of at least one compound represented by formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, or a nitrogen-containing heterocyclic group. In accordance with the present method, the stability of the washing water or stabilizer can be greatly increased without deteriorating the stability of dye images; particularly, the formation of floating matter and precipitates in the washing water or stabilizer can be substantially prevented.Type: GrantFiled: July 29, 1985Date of Patent: May 20, 1986Assignee: Fuji Photo Film Co., Ltd.Inventor: Yoshihiro Fujita
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Patent number: 4581330Abstract: Radiation sensitive silver halide photographic elements are disclosed which are protected from fog by aromatic oxatellurazinium salts. The aromatic oxatellurazinium salts can be initially incorporated in the photographic element as manufactured or during processing.Type: GrantFiled: February 19, 1985Date of Patent: April 8, 1986Assignee: Eastman Kodak CompanyInventors: Wolfgang H. H. Gunther, Roger Lok
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Patent number: 4579808Abstract: Photosensitive element for forming a lithographic negative which comprises a support bearing a dry photosensitive layer consisting essentially of an intimate mixture of colloidal metal particles, e.g., silver, etc., colloid binder, free radical producing compound, and mercaptan compound, e.g., 2-mercaptobenzoxazole. A two layer photosensitive element embodiment comprises on a support a lower dry colloidal layer having dispersed colloidal metal particles and an upper dry layer consisting essentially of free-radical producing compound and a mercaptan compound. The elements are exposed imagewise, bleached, rinsed, and optionally fixed.Type: GrantFiled: July 27, 1984Date of Patent: April 1, 1986Assignee: E. I. Du Pont de Nemours and CompanyInventor: Robert P. Held
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Patent number: 4578345Abstract: A method for processing a color photographic light-sensitive material by subjecting an exposed silver halide color photographic light-sensitive material to color development processing then to bleaching and fixing or to bleach-fixing, which method comprises using a ferric ion complex salt or a persulfate as a bleaching agent in the bleaching or bleach-fixing and incorporating at least one compound selected from compounds represented by general formula (I) below and a salt thereof in the bleaching bath or the bleach-fixing bath or in a prebath thereof: ##STR1## wherein X represents --COOM, --OH, --SO.sub.3 M, --CONH.sub.2, --SO.sub.2 NH.sub.2, --NH.sub.2, --SH, --CN, --CO.sub.2 R.sup.6, --SO.sub.2 R.sup.6, --OR.sup.6, --NR.sup.6 R.sup.7, --SR.sup.6, --SO.sub.3 R.sup.6, --NHCOR.sup.6, --NHSO.sub.2 R.sup.6, --OCOR.sup.6 or --OSO.sub.2 R.sup.6 ; Y represents ##STR2## or a hydrogen atom; m and n each represents an integer from 1 to 10; R.sup.1, R.sub.2, R.sup.4, R.sup.5, R.sup.7 and R.sup.Type: GrantFiled: October 24, 1984Date of Patent: March 25, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeru Ohno, Shinzo Kishimoto, Akihiko Ikegawa, Morio Yagihara
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Patent number: 4576905Abstract: Compounds containing an aromatic ring portion fused with a tellurazolium or derivative tellurazole, tellurazoline (including tellurazolinylidene), or tellurazolinium ring portion are disclosed together with processes and intermediates for their preparation. With properly selected pendant groups these tellurazolium and derivative compounds can be usefully employed as dyes, antifoggants or stabilizers, nucleating agents, latent image keeping addenda, or speed or contrast altering addenda in silver halide photographic systems.Type: GrantFiled: October 12, 1984Date of Patent: March 18, 1986Assignee: Eastman Kodak CompanyInventors: Wolfgang H. H. Gunther, Ronald E. Leone, Rosemary Przyklek
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Patent number: 4569899Abstract: In a photographic element for a silver salt diffusion transfer process comprising a silver halide light-sensitive element, an image receiving element and a processing element, the improvement wherein the photographic element contains a compound represented by the following general formula (I) or (II) ##STR1## wherein all the symbols are defined in the appended claims. A photographic element for a silver salt diffusion transfer process containing the novel image stabilizing agent has good stability during storage thereof before development processing and provides stable silver images free from discoloration or fading.Type: GrantFiled: December 6, 1984Date of Patent: February 11, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Inagaki, Katsusuke Endo
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Patent number: 4562144Abstract: An image stabilizer for silver halide photographic materials which contains a water-soluble bismuth compound is disclosed. In a preferred embodiment, the stabilizer also contains a water soluble chelating agent capable of forming a bismuth complex or its salt having a stability constant (log KMA) of 3 or more, said constant being represented by formula (I): ##EQU1## wherein M is a bismuth ion and A is a complex forming anion. By using this stabilizer, the processed dye image is kept stable over an extended period and the occurrence of yellow stain in the non-image area is inhibited. The stabilizer is applicable not only to color photographic materials but also to black-and-white materials.Type: GrantFiled: October 17, 1984Date of Patent: December 31, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Masayuki Kurematsu, Shigeharu Koboshi