Solid Or Dry Patents (Class 430/465)
  • Publication number: 20040170931
    Abstract: A developer composition for a lithographic printing plate comprising on an aluminum plate support a photosensitive layer which comprises an ethylenically unsaturated monomer, a photopolymerization initiator and a polymeric binder is disclosed, wherein the developer composition contains water in an amount of not more than 10% by weight and is substantially free from a silicate. There is also disclosed a developer solution obtained by dissolving the developer composition in water.
    Type: Application
    Filed: December 15, 2003
    Publication date: September 2, 2004
    Applicant: Konica Minolta Holdings, Inc.
    Inventor: Toshitsugu Suzuki
  • Patent number: 6740478
    Abstract: A method for processing a silver halide photographic light-sensitive material which comprises a support, a silver halide emulsion layer provided on the support and a hydrophilic colloid layer adjacent to the silver halide emulsion layer, comprising a step of developing the photographic light-sensitive material with a developing solution containing an ascorbic acid compound as a developing agent, wherein the photographic material contains an amine compound in at least one of the silver halide emulsion layer and the hydrophilic colloid layer and an nucleating agent within a range of 0 to 20 mg per 1 m2 of the photographic light-sensitive material, and wherein the amine compound has a distribution coefficient (log P) of 1 or more in a n-octanol/water system.
    Type: Grant
    Filed: February 7, 2003
    Date of Patent: May 25, 2004
    Assignee: Konica Corporation
    Inventor: Shoji Nishio
  • Publication number: 20030068588
    Abstract: An aqueous solution comprising a hydroxylamine salt in an amount of 18 to 35 weight-%, wherein the aqueous solution further comprises at least one compound selected from the group consisting of amino polycarboxylic acids and compounds represented by the general Formulas [1] to [6] in an amount of 1 to 30 weight-%, and pH of the aqueous solution is within the range of from 2 to 6.
    Type: Application
    Filed: March 25, 2002
    Publication date: April 10, 2003
    Inventors: Satoru Kuse, Hiroshi Yamashita
  • Patent number: 6541191
    Abstract: A photographic aqueous processing solution containing at least one solid compound that has a maximum solubility therein corresponding to a desired operating level, which solution is kept in equilibrium with the solid form of the compound, thus maintaining its concentration at the desired level without the need for a replenishing system.
    Type: Grant
    Filed: June 12, 2001
    Date of Patent: April 1, 2003
    Assignee: Eastman Kodak Company
    Inventors: Peter Jeffery Twist, John Demita Goddard
  • 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: 20030022114
    Abstract: A process for purifying p-phenylenediamine color developers in their free-base form. The process includes subjecting a solution containing p-phenylenediamine-type free base color developer to short path distillation which includes at least one of falling film evaporator, thin film evaporator, wiped film evaporator, or short-path evaporator.
    Type: Application
    Filed: September 5, 2002
    Publication date: January 30, 2003
    Inventors: Lucian Boldea, Phillip Montgomery Hudnall
  • Patent number: 6503696
    Abstract: A color developing composition is stable in the presence of calcium ion because of the presence of a specific polyphosphonic acid sequestering agent. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The calcium ion sequestering agent is morpholinomethanediphosphonic acid or a salt thereof. This sequestering agent can be used alone to control calcium ion precipitates, or in combination with a polyaminopolyphonic acid or salt thereof. The composition can be used to provide images in various color photographic silver halide materials.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: January 7, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston, William G. Henry
  • Patent number: 6416940
    Abstract: A color developing composition is stable in the presence of calcium ion because of the presence of two specific types of polyphosphonic acid sequestering agents. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The mixture of sequestering agents includes a polyaminopolyphosphonic acid and either a hydroxyalkylidenediphosphonic acid or morpholinomethanediphosphonic acid. The composition can be used to provide images in various color photographic silver halide materials.
    Type: Grant
    Filed: November 10, 1999
    Date of Patent: July 9, 2002
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston, Charles M. Darmon, Charles S. Christ, Jr., Paul A. Schwartz, William G. Henry
  • 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: 20020072017
    Abstract: A stabilized p-phenylenediamine color developer solution having about 10 to 40 weight percent of a p-phenylenediamine free base color developer, about 40 to 70 weight percent of a hydroxy-containing organic solvent for the p-phenylenediamine free base color developer, and about 1 to 40 weight percent of a preservative for the p-phenylenediamine free base color developer, wherein the weight percentages are based on the total weight of the stabilized solution. Another aspect are processes for making stabilized p-phenylenediamine color developer solutions.
    Type: Application
    Filed: October 18, 2001
    Publication date: June 13, 2002
    Inventor: Phillip Montgomery Hudnall
  • 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
  • Publication number: 20020018968
    Abstract: A color developing composition is stable in the presence of calcium ion because of the presence of two specific types of polyphosphonic acid sequestering agents. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The mixture of sequestering agents includes a polyaminopolyphosphonic acid and either a hydroxyalkylidenediphosphonic acid or morpholinomethanediphosphonic acid. The composition can be used to provide images in various color photographic silver halide materials.
    Type: Application
    Filed: November 10, 1999
    Publication date: February 14, 2002
    Inventors: SHIRLEYANNE E. HAYE, JANET M. HUSTON, CHARLES M. DARMON, CHARLES S. CHRIST, PAUL A. SCHWARTZ, WILLIAM G. HENRY
  • 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
  • Publication number: 20010041312
    Abstract: A photographic aqueous processing solution containing at least one solid compound that has a maximum solubility therein corresponding to a desired operating level, which solution is kept in equilibrium with the solid form of the compound, thus maintaining its concentration at the desired level without the need for a replenishing system.
    Type: Application
    Filed: June 12, 2001
    Publication date: November 15, 2001
    Inventors: Peter Jeffery Twist, John Demita Goddard
  • Publication number: 20010012602
    Abstract: A color developing composition is stable in the presence of calcium ion because of the presence of a specific polyphosphonic acid sequestering agent. The composition also comprises a color developing agent in free base form and an antioxidant for the color developing agent. The calcium ion sequestering agent is morpholinomethanediphosphonic acid or a salt thereof. This sequestering agent can be used alone to control calcium ion precipitates, or in combination with a polyaminopolyphonic acid or salt thereof. The composition can be used to provide images in various color photographic silver halide materials.
    Type: Application
    Filed: March 12, 2001
    Publication date: August 9, 2001
    Applicant: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston, William G. Henry
  • Patent number: 6242167
    Abstract: An electron accepting developer useful for producing visible images by reaction with an electron donor in carbonless paper and photo-imaging systems, the developer comprising an acid-treated, water insoluble alkali metal-modified, inorganic oxide or an acid-treated molecular sieve.
    Type: Grant
    Filed: April 12, 1999
    Date of Patent: June 5, 2001
    Assignee: Rentech, Inc.
    Inventors: Dale R. Shackle, Benjamin Chaloner-Gill
  • Patent number: 6130029
    Abstract: Disclosed is a method for the stabilization of dry N,N-dialkyl-p-phenylenediamine color developers and to the stabilized compositions thus obtained wherein the color developer which is susceptible to oxidative discoloration is intimately mixed with a stabilizing amount of an alkali metal metabisulfite, bisulfite or sulfite The method is particularly useful for the stabilization of salts of N-ethyl-N-(2-hydroxyethyl)4-amino-3-methylaniline.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: October 10, 2000
    Assignee: Eastman Chemical Company
    Inventor: Charles Hubert LeBlanc, Jr.
  • 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: 6093523
    Abstract: A powdered, uniformly mixed photographic developing composition is prepared with intense mixing of dry photoprocessing chemical components, one of which is a photographic developing agent, 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 developer composition is highly stable, dissolvable and substantially free of dust. An antioxidant is also applied to the dry uniform mixture during agglomeration to reduce the loss of developing agent activity.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: July 25, 2000
    Assignee: Eastman Kodak Company
    Inventors: Walter T. Gurney, Franklin C. Brayer, William J. Gamble
  • Patent number: 6077653
    Abstract: Certain 1,4-cyclohexanediones are useful as antioxidants in photographic developing compositions. These compounds stabilize the compositions, are water soluble and are essentially odorless. These antioxidants can be used in either black and white or color developing compositions used to process photographic silver halide materials.
    Type: Grant
    Filed: July 29, 1998
    Date of Patent: June 20, 2000
    Assignee: Eastman Kodak Company
    Inventors: Lynda W. McGarry, Tiecheng A. Qiao
  • 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: 5998112
    Abstract: A photographic developer composition is disclosed, comprising a reductone, as a developing agent and a compound represented by the following formula (1). The reductone is a compound represented by following formula (A). The processing method by use of the developer composition is also disclosed.
    Type: Grant
    Filed: April 27, 1998
    Date of Patent: December 7, 1999
    Assignee: Konica Corporation
    Inventor: Hirobumi Yamashita
  • 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: 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: 5935769
    Abstract: A method for processing a silver halide black-and-white photographic light sensitive material comprising a transparent polyester support having thereon hydrophilic colloid layers including a silver halide emulsion layer, by the use of an automatic processor, the method comprising the steps of developing with a developing solution; fixing with a fixing solution, washing and drying, wherein the polyester support is a biaxially stretched polyester film obtained from a naphthalenedicarboxylic acid and a diol; the developing solution and the fixing solution being prepared by dissolving, in water, a solid developing composition and a solid fixing composition, respectively.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: August 10, 1999
    Assignee: Konica Corporation
    Inventor: Kazuya Tsukada
  • Patent number: 5900355
    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: March 26, 1998
    Date of Patent: May 4, 1999
    Assignee: Eastman Kodak Company
    Inventors: William J. Gamble, Walter T. Gurney, Franklin C. Brayer
  • 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: 5851742
    Abstract: A solid processing composition and method for processing a silver halide photographic light sensitive material is disclosed in which the solid processing composition has a sodium cation content of 60 mol % or more based on the total metal cation content, and contains a developing agent represented by the following formula (1): ##STR1##
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: December 22, 1998
    Assignee: Konica Corporation
    Inventor: Shoji Nishio
  • Patent number: 5834171
    Abstract: A solid processing composition for developing a silver halide black-and-white photographic light sensitive material containing a compound represented by the following formula as a developing agent, in which a metabisulfite, or the metabisulfite and a sulfite is contained in an amount of 1 to 50% by weight of the composition, a molar ratio of the sulfite to the metabisulfite being not more than 0.85.
    Type: Grant
    Filed: January 10, 1997
    Date of Patent: November 10, 1998
    Assignee: Konica Corporation
    Inventors: Tetsuya Suzuki, Akira Shimizu, Kenji Ishida, Hiroshi Yamashita
  • Patent number: 5834168
    Abstract: A process for the development of an imagewise exposed photographic material having at least one silver halide layer, comprises forming an image therein in a solution that contains a developing agent, that is replenished. The process is carried out in an apparatus comprising at least one processing tank in which the ratio of the tank volume to maximum area of material accommodatable therein is less than 20 dm.sup.3 /m.sup.2. Substantially all replenishers are added as solids directly to said developer.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: November 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Gareth Bryn Evans, Peter Jeffery Twist
  • Patent number: 5804358
    Abstract: A solid developing composition for a silver halide black-and-white photographic light sensitive material is disclosed, comprising a developing agent selected from the group consisting of a dihydroxybenzene compound and a compound represented by formula (A), and the developing composition further comprising a compound represented by formula (1). ##STR1##CH.sub.3 (CH.sub.2).sub.n --(O).sub.m SO.sub.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: September 8, 1998
    Assignee: Konica Corporation
    Inventors: Hideki Komatsu, Shoji Nishio
  • Patent number: 5798204
    Abstract: A development processing method is described, which includes the steps of (a) exposing an ultrahigh-contrast silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and (b) developing the exposed silver halide photographic material with a developer while the developer is replenished with a development replenisher, wherein the developer and the development replenisher each contains a dihydroxybenzene developing agent and an auxiliary developing agent exhibiting a superadditive property to the dihydroxybenzene developing agent, and both the developer and the development replenisher have such a property that an increase of the pH is 0.25 or less when 0.1 mol of sodium hydroxide is added to 1 liter thereof; the developer has a pH from 9.5 up to but excluding 11.0; and the developer replenisher is added in an amount of 225 ml/m.sup.2 or less.
    Type: Grant
    Filed: December 16, 1996
    Date of Patent: August 25, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kouta Fukui, Mitsunori Hirano, Nobuaki Inoue
  • 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: 5766832
    Abstract: A solid processing composition in the form of granules or a tablet for use as a replenisher of a developer for processing a silver halide black-and-white photographic light sensitive material is disclosed, wherein the solid processing composition is substantially free from a dihydroxybenzene as a developing agent and comprises a cyclodextrin compound.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: June 16, 1998
    Assignee: Konica Corporation
    Inventor: Shoji Nishio
  • Patent number: 5766830
    Abstract: A method for processing an exposed black and white silver halide photographic light-sensitive material includes the steps of: (1) developing the exposed light-sensitive material with a developing solution, (2) fixing the developed material with a fixing solution, (3) washing the fixed material with water which is replenished in an amount of from 0 to 3 liter/m.sup.2 of the exposed light-sensitive material, and (4) drying the washed material. The developing solution is replenished with a solid photographic composition. This solid photographic composition includes a developing agent selected from the group of a dihydroxybenzene developing agent represented by Formula I and a developing agent represented by Formula II (provided that the developing agent represented by Formula II may form a sodium salt, a potassium salt or a lithium salt). Formulae I and II are as follows: ##STR1## In the formulae, R.sub.1, R.sub.2, R.sub.3, and R.sub.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: June 16, 1998
    Assignee: Konica Corporation
    Inventors: Akira Shimizu, Shoji Nishio, Yasunori Wada, Iku Metoki
  • Patent number: 5763149
    Abstract: The present invention provides a kit of parts for preparing an alkaline processing liquid for use in preparing a lithographic printing plate according to the silver salt diffusion transfer process, and comprising all necessary active compounds for preparing said alkaline processing liquid, said active compounds being comprised in parts physically separated from each other, at least one of said parts comprising an inorganic alkali in solid form, at least one of said parts comprising an alkanolamine as silver halide solvent and at least one of said other parts comprising a hydrophobizing agent and being substantially free from inorganic and/or organic alkali.
    Type: Grant
    Filed: June 5, 1997
    Date of Patent: June 9, 1998
    Assignee: AGFA-Gevaert, N.V.
    Inventor: Lode Deprez
  • Patent number: 5756271
    Abstract: A black-and-white developing composition includes as ascorbic acid developing agent, an auxiliary super-additive developing agent, borate buffer and a preservative. The composition pH is from 7 but less than 9. The composition can be formulated from two separately packaged parts that may be in dry or liquid form. The borate buffer is present to maintain the desired pH, and the two developing agents are present in desired molar ratios for optimal developing activity. Improved photographic properties are obtained while avoiding the use of environmentally unfriendly dihydroxybenzenes.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: May 26, 1998
    Assignee: Eastman Kodak Company
    Inventors: Robert John Opitz, Silvia Zawadzki
  • Patent number: 5747229
    Abstract: A solid developing composition for processing a silver halide photographic light sensitive material is disclosed which contains a compound represented by the following formula (1) and a compound represented by the following formula (2): formula (1) ##STR1## formula (2) ##STR2##
    Type: Grant
    Filed: January 30, 1997
    Date of Patent: May 5, 1998
    Assignee: Konica Corporation
    Inventor: Takuji Hasegawa
  • 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: 5741631
    Abstract: A process for the formation of a dye image by a redox amplification process in an imagewise exposed photographic color material having at least one silver halide layer and associated therewith a dye image-forming color coupler, comprises treating the material in a color developer solution containing a color developing agent and hydroxylamine as developing agent preservative. The color developing solution is replenished directly as solids or liquid concentrates with or without additional water. The process is carried out in a tank in which the ratio of the tank volume to maximum area of material accommodatable therein is less than 11 dm.sup.3 /m.sup.2.
    Type: Grant
    Filed: January 9, 1997
    Date of Patent: April 21, 1998
    Assignee: Eastman Kodak Company
    Inventor: Peter Jeffery Twist
  • Patent number: 5719005
    Abstract: A method is disclosed for the the formation of a photo mode image based on a the introduction on exposure of a difference of tackiness in a photosensitive layer which contains a reducible silver salt such as silver behenate. After exposure the still tacky parts selectively take up a reactive toner containing a reducing agent. By means of a heat post-treatment density is built up by reduction of the organic silver salt. This density can be increased by the presence in the toner of a pigment, preferable carbon black. In this way high maximal densities can be obtained. In a preferred embodiment the difference in tackiness is introduced by image-wise photopolymerization of a monomer also present in the photosensitive layer.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: February 17, 1998
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Luc Leenders, Eddie Daems
  • Patent number: 5707790
    Abstract: A developing composition for a silver halide black-and-white photographic light sensitive material is disclosed, comprising a compound represented by formula (1) and a compound represented by formula (2) or (3): ##STR1##
    Type: Grant
    Filed: March 5, 1997
    Date of Patent: January 13, 1998
    Assignee: Konica Corporation
    Inventor: Hiroyuki Yanagisawa
  • Patent number: 5702875
    Abstract: A black-and-white developing composition includes as ascorbic acid developing agent, an auxiliary super-additive developing agent, borate buffer and a preservative. The composition pH is from 7 but less than 9. The composition can be formulated from two separately packaged parts that may be in dry or liquid form. The borate buffer is present to maintain the desired pH, and the two developing agents are present in desired molar ratios for optimal developing activity. Improved photographic properties are obtained while avoiding the use of environmentally unfriendly dihydroxybenzenes.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: December 30, 1997
    Assignee: Eastman Kodak Company
    Inventors: Robert John Opitz, Silvia Zawadzki
  • Patent number: 5691108
    Abstract: A process for developing a silver halide photographic light-sensitive material is disclosed, comprising processing, after exposure, a silver halide photographic light-sensitive material which comprises a support having thereon at least one light-sensitive silver halide emulsion layer, the emulsion layer or other hydrophilic colloid layer containing a hydrazine-base nucleating agent having an anionic group in the vicinity of the hydrazine group or a nonionic group of forming an intramolecular hydrogen bond with the hydrogen atom of the hydrazine, or containing at least one hydrazine nucleating agent selected from the compounds represented by formula (I), and a nucleating accelerator, with a developer having a pH of from 9.0 to 11.0 and containing:(1) from 0.2 to 0.75 mol/l of a dihydroxybenzene-base developing agent,(2) from 0.001 to 0.06 mol/l of a 1-phenyl-3-pyrazolidone-base or p-aminophenol-base auxiliary developing agent,(3) from 0.3 to 1.
    Type: Grant
    Filed: October 24, 1996
    Date of Patent: November 25, 1997
    Assignee: Fuji Photo Film Co., LTD.
    Inventors: Mitsunori Hirano, Kouta Fukui
  • 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: 5624784
    Abstract: A kit of parts for preparing an alkaline processing liquid for use in preparing a lithographic printing plate according to the silver salt diffusion transfer process, and comprising all necessary active compounds for preparing said alkaline processing liquid, said active compounds being contained in parts physically separated from each other, at least one of said parts comprising an inorganic alkali in solid form and at least one of said other parts comprising a hydrophobizing agent and being substantially free from inorganic alkali.
    Type: Grant
    Filed: March 18, 1996
    Date of Patent: April 29, 1997
    Assignee: Afga-Gevaert N.V.
    Inventors: Jos Vaes, Renaat Ceulemans, Lode Deprez
  • 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