Dry Or Concentrated Patents (Class 430/458)
  • Patent number: 10669466
    Abstract: Provided is a cold-storage agent freezing at a temperature range of a freezer in a household refrigerator and excellent in cooling retaining performance. In a cold-storage agent including: water; ammonium chloride; potassium chloride; and sodium sulfate, content of the ammonium chloride, the potassium chloride, and the sodium sulfate satisfies the following Formula (1): 1.0<ammonium chloride/(potassium chloride+sodium sulfate)<5.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: June 2, 2020
    Assignee: JAPAN COLD CHAIN CO., LTD
    Inventor: Hirokazu Miyashita
  • Patent number: 7351522
    Abstract: An object of the present invention is to provide a method of processing silver halide color paper that ensures (a) promptness such that finished prints can be handed at shop to customers, (b) small installation area for mini-labs, (c) processing solution stability capable of withstanding slack seasons, (d) normal image quality, (e) small replenishment solution amount and (f) inhibition of tar generation and sulfuration phenomenon occurrence. This object can be attained by a concentrated processing composition for color paper which has a concentrated processing composition for bleach replenishment of 3.0 or less in pH containing 0.3 mol/L or more of EDTA.Fe(III) ammonium, 0.3 mol/L or more of a sulfinic acid compound of specified structure and 0.5 mol/L or more of ammonium bromide and a concentrated processing composition for fixative replenishment of 4.0 or more in pH containing 0.7 mol/L of ammonium thiosulfate and 0.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: April 1, 2008
    Assignee: Fujifilm Corporation
    Inventor: Kazuaki Yoshida
  • Patent number: 7135275
    Abstract: A solid bleach-fixing composition for a silver halide color photographic light-sensitive material, comprising at least one specific 5-membered heterocyclic azoliumthiolate compound, particularly, a solid bleach-fixing composition wherein the specific thiolate compound is a diazolium-thiolate compound substituted by a water-soluble group. A method for processing a silver halide color photographic light-sensitive material, comprising using a bleach-fixing solution containing a specific 5-membered heterocyclic azoliumthiolate compound, and regenerating at least 50 mass % of the used bleach-fixing solution as a bleach-fixing processing agent for replenishment; and a method for processing a silver halide color photographic light-sensitive material, comprising regenerating at least 30 mass % of the used processing solution further containing used rinsing solution as a bleach-fixing processing agent for replenishment.
    Type: Grant
    Filed: August 18, 2004
    Date of Patent: November 14, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazuaki Yoshida
  • Publication number: 20040175661
    Abstract: In order to provide a granular solid processing agent capable of avoiding consolidation among its constituent granules even when the granules sustain some damage by vibrations during transportation or/and are placed under high humidity conditions, and thereby maintaining qualities in the solid processing agent, and a method of producing such a granular solid processing agent, disclosed are solid processing agents for silver halide photosensitive materials, which each have granules containing an organic acid whose ammonium salt has a critical relative humidity of at least 70% RH, particularly the solid processing agents for silver halide photosensitive materials whose granules are core-shell granules containing the organic acids in their individual shell layers.
    Type: Application
    Filed: March 1, 2004
    Publication date: September 9, 2004
    Inventor: Hideaki Nomura
  • Patent number: 6605419
    Abstract: A method of providing an image in an imagewise exposed silver halide photographic silver material comprising at least one silver halide emulsion layer, comprises developing the silver halide and fixing the remaining silver halide by (i) contacting the photographic material with a composition comprising a solid complexing agent for the silver halide in the presence of a sufficient amount of water to transfer complexing agent to the surface of the photographic material and (ii) applying heat to cause the complexing agent to react with the silver halide to render it substantially clear.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: August 12, 2003
    Assignee: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Patent number: 6528242
    Abstract: Concentrated aqueous photographic fixing compositions include a photographic fixing agent and a compound represented by Structure I wherein R is carboxy or sulfo, m is an integer of from 0 to 7 and n is an integer of from 2 to 5. This compound is provided in a concentrated aqueous fixer additive composition. These compositions can be used to provide images in color photographic materials, and particularly in color reversal films, with reduced residual sensitizing dye stain.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: March 4, 2003
    Assignee: Eastman Kodak Company
    Inventors: Jean M. Buongiorne, Mary E. Craver, Ramanuj Goswami
  • Patent number: 6524780
    Abstract: A granulated solid processing agent for a silver halide photographic material which is a core/shell type spherical granule comprising an internal nucleus and layer structure of one or more layers coating the internal nucleus, and the critical relative humidity of the internal nucleus is 70% or less.
    Type: Grant
    Filed: December 27, 2000
    Date of Patent: February 25, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuaki Yoshida, Hiroki Ide
  • Publication number: 20020192605
    Abstract: A method of providing an image in an imagewise exposed silver halide photographic silver material comprising at least one silver halide emulsion layer, comprises developing the silver halide and fixing the remaining silver halide by (i) contacting the photographic material with a composition comprising a solid complexing agent for the silver halide in the presence of a sufficient amount of water to transfer complexing agent to the surface of the photographic material and (ii) applying heat to cause the complexing agent to react with the silver halide to render it substantially clear.
    Type: Application
    Filed: April 29, 2002
    Publication date: December 19, 2002
    Applicant: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Publication number: 20020187441
    Abstract: Concentrated aqueous photographic fixing compositions include a photographic fixing agent and a compound represented by Structure I 1
    Type: Application
    Filed: June 5, 2002
    Publication date: December 12, 2002
    Inventors: Jean M. Buongiorne, Mary E. Craver, Ramanuj Goswami
  • Publication number: 20020164551
    Abstract: Stable, single-part photographic bleach-fixing “precursor” compositions comprise one or more iron-ligand complexes, one or more thiosulfates as the sole fixing agents, and optionally, a sulfite preservative. At least 50 mol % of the iron in the composition is in the form of Fe(II). This composition can be used directly in photoprocessing, or used as a regenerator when mixed with bleach-fixing overflow to provide a replenishing solution. Because the Fe(II) compounds are precursor bleaching agents, they must be oxidized to Fe(III) for active bleaching prior to or during the photographic processing operations.
    Type: Application
    Filed: April 3, 2002
    Publication date: November 7, 2002
    Inventors: Sheridan E. Vincent, Valerie L. Kuykendall, Jean M. Buongiorne
  • Publication number: 20020160322
    Abstract: Stable, single-part photographic bleach-fixing “precursor” compositions comprise one or more iron-ligand complexes, one or more thiosulfates as the sole fixing agents, and optionally, a sulfite preservative. At least 50 mol % of the iron in the composition is in the form of Fe(II). This composition can be used directly in photoprocessing, or used as a regenerator when mixed with bleach-fixing overflow to provide a replenishing solution. Because the Fe(II) compounds are precursor bleaching agents, they must be oxidized to Fe(III) for active bleaching prior to or during the photographic processing operations.
    Type: Application
    Filed: April 3, 2002
    Publication date: October 31, 2002
    Inventors: Sheridan E. Vincent, Valerie L. Kuykendall, Jean M. Buongiorne
  • Patent number: 6455236
    Abstract: Compositions and methods of making photographic one-part bleach-fix liquid concentrates, packaged in a single unit, wherein the bleaching agent is a polyvalent metal oxidizing agent are described. A thiocyanate salt is added in an amount sufficient to provide one-part bleach-fix liquid concentrates that are homogeneous, remain free of crystallized precipitates for extended periods of time, and that retain effective oxidizing potential during extended periods of storage. Alternatively, the present invention provides for compositions and methods of making stable bleach-fix liquid concentrates, suitable for dilution to working strength solutions, using a polyvalent metal oxidizing bleaching agent, at least one fixing agent, and a source of phosphate ions. Precipitation, which occurs when an iron (III) bleaching agent is reduced by components of the concentrate, is prevented by the addition of thiocyanate and/or phosphate ions.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: September 24, 2002
    Assignee: Trebla Chemical Company
    Inventor: Laszlo Papai
  • Patent number: 6406838
    Abstract: The present invention provides an overcoat for a photographic element that allows for appropriate diffusion of photographic processing solutions. The overcoat comprises 10 to 50% by weight of a enzyme-degradable biopolymer and 50 to 90% by weight of hydrophobic particles (by weight of dry laydown of the entire overcoat). An enzyme is applied to the element before, during, or after conventional photoprocessing. According to one embodiment of the invention, the photographic element can be exposed and processed using normal photofinishing equipment, with no modifications, to provide an imaged element together with a protective, water-resistant layer.
    Type: Grant
    Filed: July 3, 2001
    Date of Patent: June 18, 2002
    Assignee: Eastman Kodak Company
    Inventors: Thomas H. Whitesides, Amy Jasek, Hwei-Ling Yau, Jill E. Fornalik
  • Publication number: 20020061476
    Abstract: The present invention provides an overcoat for a photographic element that allows for appropriate diffusion of photographic processing solutions. The overcoat comprises 10 to 50% by weight of a enzyme-degradable biopolymer and 50 to 90% by weight of hydrophobic particles (by weight of dry laydown of the entire overcoat). An enzyme is applied to the element before, during, or after conventional photoprocessing. According to one embodiment of the invention, the photographic element can be exposed and processed using normal photofinishing equipment, with no modifications, to provide an imaged element together with a protective, water-resistant layer.
    Type: Application
    Filed: July 3, 2001
    Publication date: May 23, 2002
    Inventors: Thomas H. Whitesides, Amy Jasek, Hwei-Ling Yau, Jill E. Fornalik
  • Patent number: 6350562
    Abstract: A concentrated fixing solution which includes at least a thiosulfate, a water-soluble aluminum salt, and a compound having an absorbance of from 0.25 to 1.15 by a prescribed colorimetric method, and does not substantially contain a boron compound is disclosed. A method for processing a silver halide photographic material by using the concentrated fixing solution is also described.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: February 26, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Harumi Watanabe, Minoru Yamada, Mitsunori Hirano, Hisashi Okada
  • Publication number: 20020001782
    Abstract: A concentrated fixing solution which includes at least a thiosulfate, a water-soluble aluminum salt, and a compound having an absorbance of from 0.25 to 1.15 by a prescribed colorimetric method, and does not substantially contain a boron compound is disclosed. A method for processing a silver halide photographic material by using the concentrated fixing solution is also described.
    Type: Application
    Filed: March 18, 1996
    Publication date: January 3, 2002
    Applicant: FUJI PHOTO FILM CO., LTD
    Inventors: HARUMI WATANABE, MINORU YAMADA, MITSUNORI HIRANO, HISASHI OKADA
  • Publication number: 20010044081
    Abstract: A granulated solid processing agent for a silver halide photographic material which is a core/shell type spherical granule comprising an internal nucleus and layer structure of one or more layers coating the internal nucleus, and the critical relative humidity of the internal nucleus is 70% or less.
    Type: Application
    Filed: December 27, 2000
    Publication date: November 22, 2001
    Inventors: Kazuaki Yoshida, Hiroki Ide
  • Patent number: 6110654
    Abstract: A powdered, uniformly mixed photographic processing composition is prepared with intense mixing of dry photoprocessing chemical components, and by forming uniformly sized agglomerates of the mixed powder. During agglomeration, a solution of a binder material is applied in a controlled manner to enable the mixed powder particles to stick together but without leaving much residue in the final composition. With this process, the mixed powder and agglomerates each have desired uniformity in size and chemical composition. The resulting dry uniformly mixed composition is highly stable, dissolvable and substantially free of dust.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: August 29, 2000
    Assignee: Eastman Kodak Company
    Inventors: Franklin C. Brayer, William J. Gamble, Walter T. Gurney
  • Patent number: 6020113
    Abstract: A process for producing a photographic suspended processing agent composition is disclosed, comprising dividing the constituent components of the composition into a plurality of component groups, dissolving respective component groups in water to prepare a plurality of concentrated solutions, and rapidly mixing the concentrated solutions to disperse and suspend the constituent components, thereby producing a suspended development processing agent composition for silver halide photographic materials.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: February 1, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Akira Abe
  • Patent number: 6001546
    Abstract: A manufacturing method for a solid processing composition for processing a silver halide photographic light sensitive material, wherein the composition is manufactured by using a stirring granulation method, and at least part of said stirring granulation is performed in the temperature range of 35.degree. C. to 120.degree. C.The manufacturing method for the solid processing composition mentioned above, wherein the content of the added solution in the stirring granulation process is 0.01 to 2.0 weight % of the total weight of said solid processing composition and wherein not less than 60% of the total weight of said solid processing composition has particle size of 1.0 .mu.m to 150 .mu.m.The solid processing composition mentioned above may contain reductone derivative, sugar derivative and polyethylene glycol derivative.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: December 14, 1999
    Assignee: Konica Corporation
    Inventors: Tetsuya Suzuki, Kouki Kawashima, Shinji Uchihiro, Akira Tanizaki
  • Patent number: 6001545
    Abstract: Color photographic silver halide elements, such as color films, can be rapidly fixed using a fixing composition containing a mixture of thiosulfate and thiocyanate fixing agents, and certain sulfur-containing 1,2,4-triazoles. Each of the components is present in specific amounts to effect rapid and efficient desilvering. The composition also includes predominantly ammonium cations (at least 50 mol %). Besides effective and rapid silver removal (up to 50 seconds), the fixing composition also minimizes residual dye stain from sensitizing dye aggregates within the photographic elements.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: December 14, 1999
    Assignee: Eastman Kodak Company
    Inventors: David G. Foster, Eric R. Schmittou
  • Patent number: 5998111
    Abstract: A process for producing a photographic suspended processing agent composition is disclosed, comprising previously mixing at least two powder or granular solid components constituting said composition and rapidly adding said mixed powder or granular solids to water or a liquid medium mainly comprising water under quick stirring to disperse and suspend the solid components, thereby producing a suspended processing agent composition for silver halide photographic materials.
    Type: Grant
    Filed: March 25, 1998
    Date of Patent: December 7, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Akira Abe
  • Patent number: 5976774
    Abstract: A method for preparing a solid processing composition in the form of granules for a silver halide black-and-white photographic material is disclosed, comprising the steps of:(i) mixing powdery photographic processing chemicals,(ii) granulating a mixture of the processing chemicals while stirring to form granules, and(iii) drying the granules,wherein in step (ii), granulation is carried out with the addition of water in an amount of 4 to 6% by weight, based on the processing chemicals; said granules having a bulk density of not less than 1.1 g/cm.sup.3.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: November 2, 1999
    Assignee: Konica Corporation
    Inventor: Shinji Uchihiro
  • Patent number: 5972582
    Abstract: A powdered, uniformly-mixed photographic processing composition is prepared with intense mixing of dry photoprocessing chemical components, and by forming uniformly sized agglomerates of the mixed powder. During agglomeration, a hot melt binder polymer is applied in a controlled manner to enable the uniformly-mixed powder particles to stick together with little residue in the final composition. With this process, the mixed powder and agglomerates each have the desired uniformity in size and chemical composition. The resulting dry composition is highly stable, dissolvable and substantially free of dust.
    Type: Grant
    Filed: December 8, 1998
    Date of Patent: October 26, 1999
    Assignee: Eastman Kodak Company
    Inventors: William J. Gamble, Walter T. Gurney, Franklin C. Brayer
  • Patent number: 5968715
    Abstract: A method for processing a silver halide photographic light-sensitive material is disclosed.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: October 19, 1999
    Assignee: Konica Corporation
    Inventors: Yutaka Ueda, Masao Ishikawa, Satoru Kuse
  • Patent number: 5955247
    Abstract: A method for processing a black-and-white silver halide photographic light-sensitive material by a monobath processing method.
    Type: Grant
    Filed: July 7, 1998
    Date of Patent: September 21, 1999
    Assignee: Konica Corporation
    Inventor: Shinji Uchihiro
  • Patent number: 5955248
    Abstract: Concentrated and working strength photographic fixing compositions include a photographic fixing agent, a triazinylstilbene compound, and a water-soluble stabilizing compound that has a molecular weight of less than 200, from 2 to 10 carbon atoms, and at least two amino or hydroxy functional groups. The triazinylstilbene is provided in a concentrated fixer additive composition in a mixture with the stabilizing compound. The fixing compositions also include predominantly ammonium ions, and can be used to provide images in color photographic materials, and particularly in color reversal films, with reduced residual sensitizing dye stain.
    Type: Grant
    Filed: July 6, 1998
    Date of Patent: September 21, 1999
    Assignee: Eastman Kodak Company
    Inventors: Mary E. Craver, Jean M. Buongiorne
  • Patent number: 5948604
    Abstract: A processing kit for color reversal photographic elements includes several concentrate compositions that can be used to prepare the necessary working strength processing solutions. Each concentrate composition is packaged in a volume that is designed for dilution to the same predetermined working strength solution volume for a single use in color reversal processing.
    Type: Grant
    Filed: August 11, 1998
    Date of Patent: September 7, 1999
    Assignee: Eastman Kodak Company
    Inventors: Mary E. Craver, Jean M. Buongiorne, Michael J. Haight
  • Patent number: 5891608
    Abstract: In a slurry-form photographic processing composition, some of photographic processing components are dispersed in water in fine particulate form, and a water-soluble polymer is contained in an amount of 0.1-10% by weight based on the weight of the processing components. The slurry composition is compact, easy to take out of the container, well soluble, and free of degradation during long-term storage.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: April 6, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Hashimoto, Kazuaki Yoshida
  • Patent number: 5882848
    Abstract: A fixing composition for processing a silver halide photographic material comprises a fixing agent, a sulfite stabilizer, an acid and a buffer. The composition has a pH greater than 5.4 and the buffer comprises at least 2.0 mol/l ammonium acetate.
    Type: Grant
    Filed: October 9, 1997
    Date of Patent: March 16, 1999
    Assignee: Eastman Kodak Company
    Inventors: Zoe Orr, Jeffrey K. Green
  • Patent number: 5869225
    Abstract: A method for processing a silver halide photographic light sensitive material, using an automatic processor, the method comprising the steps of developing an exposed silver halide photographic light sensitive material with developer containing a compound represented by the following formula (1); and then fixing the developed material with fixer, formula (1) ##STR1## wherein the average flow velocity of the developer is 20 cm/second or more.
    Type: Grant
    Filed: August 20, 1997
    Date of Patent: February 9, 1999
    Assignee: Konica Corporation
    Inventor: Akiko Yamaya
  • Patent number: 5780211
    Abstract: Disclosed is a photographic processing composition in the tablet form which comprises a first and a second ingredients, said composition being prepared by a first granulating a first powder comprising said first ingredient to form first granules, a second granulating a second powder comprising said second ingredient to form second granules, mixing said first and second granules, and compressing said mixture of granules. The tables have an apparent density of 1.0 to 2.5 g/cm.sup.3.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: July 14, 1998
    Assignee: Konica Corporation
    Inventors: Yoshimasa Komatsu, Shigeharu Koboshi, Masao Ishikawa
  • Patent number: 5744289
    Abstract: A solid processing agent packaging body comprises (1) a moisture proof bag; (2) an internal plate member including an approximately rectangular-shaped base plate and three side plates provided on three sides of the base plate and bent in the same direction so that the three side plates define three inner side surfaces and a floor surface of the base plate on the internal plate member and the three inner side surfaces and the floor surface form an accommodation space; and (3) solid processing agents. The moisture proof bag has a sealed open portion at a position corresponding to an open side of the base plate on which the three side plates are not provided so that the solid processing agents are discharge from the accommodation space through the open side of the base plate and the opened sealed open portion of the moisture proof bag.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: April 28, 1998
    Assignee: Konica Corporation
    Inventors: Hideo Kobayashi, Shinji Shikata, Tomohiro Uchida
  • Patent number: 5663039
    Abstract: A solid processing agent for a silver halide photographic light-sensitive material is disclosed in which at least a portion of the surface of the agent is covered with an additive selected from the group consisting of a sulfite and a compound represented by the following Formula (1), (3) or (4): ##STR1##
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: September 2, 1997
    Assignee: Konica Corporation
    Inventors: Yutaka Ueda, Hiroshi Yamashita, Koji Takemura
  • Patent number: 5635342
    Abstract: A method for manufacturing a granular solid processing composition for a silver halide photographic light-sensitive material is disclosed, which comprises the steps of:granulating a composition comprising at least one photographic processing agent with stirring in the presence of a liquid to obtain granules; and dressing the granules.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: June 3, 1997
    Assignee: Konica Corporation
    Inventor: Takashi Deguchi
  • Patent number: 5627005
    Abstract: A plurality of different materials which are required for use in a process and which are to be kept separate up to a predetermined stage in the process are supplied with each different material being encapsulated within a plurality of discrete shells, the shells serving to keep the different materials separate from each other. The shells for the different materials are distinguishable from each other so as to permit subsequent sorting of the shells into batches of shells all containing the same material.
    Type: Grant
    Filed: September 12, 1995
    Date of Patent: May 6, 1997
    Assignee: Eastman Kodak Company
    Inventors: Andrew Green, Paul C. Ward
  • Patent number: 5624793
    Abstract: A method of manufacturing a solid granular processing composition for a silver halide photographic light sensitive material is disclosed, the method comprising the steps of (1) fluidizing in air current powder particles comprising a compound selected from the group consisting of a thiosulfate, a sulfite, a bisulfite, an aminopolycarboxylic acid ferric complex, a carbonate, a p-phenylenediamine type developing agent and a hydroxylamine or its derivative; and (2) granulating the fluidized particles at a theoretical relative humidity of 15 to 60%, while spraying a binder water to the particles to obtain granules.
    Type: Grant
    Filed: November 1, 1995
    Date of Patent: April 29, 1997
    Assignee: Konica Corporation
    Inventors: Hiroshi Yamashita, Hiroshi Yoshimoto, Koji Takemura
  • Patent number: 5618658
    Abstract: A substantially sulfur-free ammonium thiosulfate containing product can be produced by spray drying an aqueous solution containing ammonium thiosulfate and effective stabilizing amounts of both a carbonate component and a sulfite component under effective conditions to provide a substantially sulfur-free product. The carbonate component is selected from among ammonium carbonate or bicarbonate, an alkali metal carbonate or bicarbonate, or an alkaline metal carbonate or bicarbonate while the sulfite component is an ammonium sulfite or bisulfite, alkali metal sulfite or bisulfite, or an alkaline metal sulfite or bisulfite.
    Type: Grant
    Filed: August 28, 1995
    Date of Patent: April 8, 1997
    Assignee: Fuji Hunt Photographic Chemicals, Inc.
    Inventors: Malcolm S. Penman, Edward C. Saunders, Peter R. Wardle
  • Patent number: 5587277
    Abstract: A solid photographic processing composition in tablet form for a silver halide photographic light sensitive material is provided, wherein at least a part of the surface of said solid processing composition is covere-coated with a compound selected from (i) a polyalkylene glycol having an average molecular weight of 2000 to 20000, (ii) a monosaccharide or disaccharide and (iii) a vinyl polymer having a betaine structure. The tablets of the processing composition are enclosed in a package, and introduced into a processing tank.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: December 24, 1996
    Assignee: Konica Corporation
    Inventors: Hiroshi Yamashita, Yutaka Ueda
  • Patent number: 5552264
    Abstract: A conditioning or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade while reducing the needed amount of formaldehyde stabilizer. This solution is provided in highly concentrated form and diluted up to 9:1 prior to or during use. The concentrate contains a formaldehyde precursor at 200 to 450 g/l, a sulfite at from 40 to 100 g/l, a bleach accelerating agent at 1.5 to 13.5, and a metal ion chelating agent at 5 to 45 g/l.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: September 3, 1996
    Assignee: Eastman Kodak Company
    Inventors: Ann M. Cullinan, Charles M. Darmon, Rosa P. Sauter, Charles F. Leith
  • Patent number: 5543272
    Abstract: There is disclosed a photographic composition having fixing capacity and a method for processing a silver halide photographic material using the same. The photographic composition having fixing capacity comprises a photographic composition having fixing capacity, which comprises at least one compound represented by the following formula (I) and at least one compound represented by the following formula (II):RSO.sub.2 SM formula (I)wherein R represents an aliphatic group, an aromatic group, or a heterocyclic group, and M represents a hydrogen atom or a cationic group,R.sup.1 SO.sub.2 M.sup.1 formula (II)wherein R.sup.1 represents an aliphatic group, an aromatic group, or a heterocyclic group, and M.sup.1 represents a hydrogen atom or a cationic group.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: August 6, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Masaru Yoshikawa, Yoshihiro Fujita
  • Patent number: 5534389
    Abstract: Disclosed are a method for processing a black-and-white light-sensitive silver halide photographic material containing at least one kind of a tetrazolium compound or a hydrazine compound with a developing solution containing a polyhydroxybenzene type developing agent, wherein the developing solution is a developing solution prepared by using a solid processing agent, a solid processing agent for a black-and-white light-sensitive silver halide photographic material containing a tetrazolium compound or a hydrazine compound comprising a polyhydroxybenzene type developing agent and a solid processing agent for a black-and-white light-sensitive silver halide photographic material containing a tetrazolium compound or a hydrazine compound comprising a thiosulfate fixing agent and water in an amount of 300% or less based on an amount of the thiosulfate fixing agent.
    Type: Grant
    Filed: July 8, 1994
    Date of Patent: July 9, 1996
    Assignee: Konica Corporation
    Inventors: Takeo Arai, Tadashi Sekiguchi, Takeshi Habu, Shiyouji Nishio, Hiroyuki Usiroyama, Kenichi Tanaka, Akira Kobayashi
  • Patent number: 5512424
    Abstract: A method of manufacturing a tablet processing agent for a silver halide photographic light-sensitive material is disclosed, which comprises the step ofmolding particles into tablets at a compression pressure of 400 to 4500 kg/cm.sup.2 and at a compression dwell time of 0.015 to 1.000 second to obtain the tablet processing agent, wherein the particles comprises a compound selected from the group consisting of a p-phenylene diamine and its derivatives, a hydroxylamine and its derivatives, an alkali metal carbonate, an amino polycarboxylic acid ferric complex and a thiosulfate.
    Type: Grant
    Filed: March 13, 1995
    Date of Patent: April 30, 1996
    Assignee: Konica Corporation
    Inventor: Hiroshi Yoshimoto
  • Patent number: 5484691
    Abstract: A solid processing composition for providing fixer or bleach-fixer of a silver halide photographic light-sensitive material is disclosed, wherein the composition comprises a sugar alcohol and at least one of a thiosulfate salt and a thiocyanate salt.
    Type: Grant
    Filed: August 15, 1994
    Date of Patent: January 16, 1996
    Assignee: Konica Corporation
    Inventors: Kenji Ishida, Takashi Deguchi
  • Patent number: 5480768
    Abstract: A method for processing an exposed silver halide photographic light-sensitive material is provided, comprisingdeveloping the photographic material with a developer,fixing the photographic material with a fixer,stabilizing the photographic material with a stabilizer, andreplenishing at least one of the developer, the fixer and the stabilizer by supplying a processing composition,wherein the processing composition is a solid composition, meeting the following requirement,2.ltoreq.S/R.ltoreq.70wherein S is a dissolving time (in minutes) of a unit by weight of the solid composition supplied and R is an amount (in m.sup.2) of the photographic material processed per unit weight of the solid composition supplied.
    Type: Grant
    Filed: February 14, 1994
    Date of Patent: January 2, 1996
    Assignee: Konica Corporation
    Inventors: Kenji Ishida, Shigeharu Koboshi
  • Patent number: 5478703
    Abstract: A method of fixing a developed photographic silver halide material comprising at least 2 silver halide layers sensitized to different regions of the spectrum, comprising placing the material in face-to-face contact with a fixer sheet in the presence of a processing solution and a silver halide solvent which forms a solubilized silver halide species from the undeveloped areas of the material, wherein the fixer sheet contains reducing means capable of forming metallic silver therein from the solubilized silver halide.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: December 26, 1995
    Assignee: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Patent number: 5460926
    Abstract: A method for developing light-sensitive silver halide photographic materials, in a compact automatic developing machine, comprising transporting the light-sensitive silver halide photographic materials to a processing tank which contains a processing solution for processing an exposed light-sensitive silver halide photographic material. The processing tank includes a processing portion, and a receiving portion for receiving a solid processing agent. A solid processing agent is supplied to the receiving portion of the processing tank based on information on the amount of processing of the light-sensitive silver halide photographic materials. The solid processing agent is preferably in the form of tablets which contain all components necessary to process the light-sensitive silver halide photographic material. The processing solution is circulated between the processing portion and the receiving portion at a flow rate of not less than 0.5 times the processing tank volume per minute.
    Type: Grant
    Filed: July 13, 1994
    Date of Patent: October 24, 1995
    Assignee: Konica Corporation
    Inventors: Yoshimasa Komatsu, Shigeharu Koboshi, Masao Ishikawa
  • Patent number: 5409805
    Abstract: 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: Grant
    Filed: July 14, 1994
    Date of Patent: April 25, 1995
    Assignee: Konica Corporation
    Inventors: Tsuyoshi Haraguchi, Hiroaki Kobayashi
  • Patent number: 5405732
    Abstract: A process for processing a black-and-white silver halide photographic light-sensitive material is disclosed, the material comprising a photographic component layer containing a hydrazine compound, and the process comprising the step of exposing the light-sensitive material, and developing the exposed material with developer having a pH of not more than 10.7, the developer being prepared from a solid developing composition and the developer being replenished with developer replenisher in an amount of not more than 250 cc per m.sup.2 of the light-sensitive material to be developed.
    Type: Grant
    Filed: January 5, 1994
    Date of Patent: April 11, 1995
    Assignee: Konica Corporation
    Inventors: Akira Shimizu, Shoji Nishio, Takeshi Sanpei, Hiroyuki Ushiroyama
  • Patent number: RE35795
    Abstract: A method for making flowable alkaline thiosulfate, flowable alkaline sulfite, or a combination of the two, by blending an alkaline thiosulfate, an alkaline sulfite, or a combination of the two, with an alkali metal .?.arylsulfonate.formaldehyde.!. .Iadd.arylsulfonate.cndot.formaldehyde .Iaddend.in an amount effective to render the alkaline thiosulfate, the alkaline sulfite, or the combination freely flowable, and the product of this method. It has been found that the product of this method, such as freely flowable ammonium thiosulfate powder mixture, can be stored in a freely flowable condition for extended periods of time and can be dissolved into solution readily to form a clear non-turbid solution. The freely flowable ammonium thiosulfate powdered mixture of the present invention is particularly useful as a photographic fixative and bleach fixative for processing photographic elements.
    Type: Grant
    Filed: July 5, 1996
    Date of Patent: May 12, 1998
    Assignee: Fuji Hunt Photographic Chemicals, Inc.
    Inventors: Hongzoon Kim, Charles J. Pfeiffer