Brightener Containing Patents (Class 430/933)
  • Patent number: 7449282
    Abstract: A lithographic printing plate precursor comprising a photosensitive layer comprising: (A) a fluorescent brightening agent; (B) an activator compound being capable of inducing a chemical change by an interaction with light absorption of the fluorescent brightening agent to produce at least one of a radical, an acid and a base; (C) a compound being capable of undergoing a reaction by an effect of at least one of a radical, an acid and a base to irreversibly change in its physical or chemical properties; and (D) a polyurethane resin binder, wherein the polyurethane resin binder is synthesized from at least following compounds (i), (ii), (iii) and (iv): (i) a diisocyanate compound; (ii) a diol compound having at least one carboxyl group; (iii) a diol compound having a logP value of less than 0; and (iv) a diol compound having a logP value of 0 or more, with the proviso that each of the diol compound (iii) and the diol compound (iv) does not have a carboxyl group.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 11, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Akinori Shibuya
  • Patent number: 7108962
    Abstract: A photographic processing composition, containing at least one compound of formula (I) or (II): A1-X-L-Y-A2??(I) wherein A1 and A2 each are a specific aryl or aromatic heterocyclic group; L is a specific arylene or divalent aromatic heterocyclic group; X and Y each are a specific divalent group; the compound of (I) contains at least two of —SO3M or —CO2M, but not contains —N?N— or —SH; M is a hydrogen, alkali or alkali earth metal, ammonium, or pyridinium; wherein A11 is a specific tri- or tetra-valent aromatic hydrocarbon or aromatic heterocyclic group; A12 is an aryl or aromatic heterocyclic group; X1 is a divalent group; M1 is a hydrogen, alkali or alkali earth metal, ammonium, or pyridinium; the molecule of (II) does not contain —N?N— or —SH; n is 3 or 4; r and s each are 0 to 10, (r+s) is 2 or more.
    Type: Grant
    Filed: January 24, 2003
    Date of Patent: September 19, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Yasufimi Nakai
  • Patent number: 7029808
    Abstract: A radiation-sensitive coating material, in addition to a base polymer, has a solvent and a radiation-active substance which forms an acid on irradiation by light (including energetic electrons or ions), a fluorescent substance which alters its fluorescence property subject to a change in the acid content of its surroundings. In a process for exposing a substrate coated with the coating material at least one sensor in the exposure chamber of the exposure apparatus measures the intensity of the change in fluorescence spectrum as a function of time during the exposure operation. From the course of intensity at the time of an individual line of the fluorescence spectrum or the intensity integrated over a wavelength interval it is possible to determine the endpoint of the exposure operation by way of electronic algorithms. Deviations from experimentally determined ideal curves of the intensity course provide information on erroneous functions in the course of coating material application and exposure.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: April 18, 2006
    Assignee: Infineon Technologies AG
    Inventors: Jenspeter Rau, Siegfried Schwarzl, Stefan Wurm
  • Patent number: 6890706
    Abstract: A process for removing stain in a photographic material is described which process comprises incorporation of at least one compound of the formula (I) wherein X is O or NH; n is 1 or 2, p is 0, 1 or 2, M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an aminoacid residue from which a hydrogen atom on the amino group has been removed; each R2, independently, is hydrogen, C1-C8alkyl, C1-C8alkoxy, halogen, cyano, COOR, wherein R is hydrogen or C1-C3alkyl, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, or SO3M, wherein M has its previous significance, or, if n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl, in that photographic material.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: May 10, 2005
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Christophe Bulliard, Georges Metzger, Sonia Megert
  • Patent number: 6824963
    Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.
    Type: Grant
    Filed: September 30, 2003
    Date of Patent: November 30, 2004
    Assignee: Eastman Kodak Company
    Inventors: John R. Fyson, Peter J. Twist
  • Patent number: 6818367
    Abstract: The invention relates to an imaging element comprising an imaging layer and a support, wherein the support comprises a base material having thereon at least two polyolefin layers, wherein the uppermost layer of the at least two polyolefin layers comprises a mixture of optical brighteners comprising a Compound A having the following formula: a Compound B having the following formula: and a Compound C having the following formula: wherein the layers below the uppermost layer of the at least two polyolefin layers comprise migratory optical brightener; and wherein the imaging layer is on the same side of the base material as the at least two polyolefin layers. The inventive support unexpectedly minimizes exudation of the brightener at the polyolefin surface and provides excellent absorption/emission characteristics, brightening power and heat to meet the critical requirements of the photographic field.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: November 16, 2004
    Assignee: Eastman Kodak Company
    Inventors: Elizabeth K. Priebe, William A. Mruk, James C. Pirchner, Suresh Sunderrajan
  • Patent number: 6767681
    Abstract: A method of processing photosensitive materials in which one or more chemical compounds are at least partially retained after processing. The chemical compounds are unique to a particular process used by a copyright owner. The absence of the unique compounds in a processed material thus indicates that the processing has been without the authorization of the copyright owner.
    Type: Grant
    Filed: May 13, 2003
    Date of Patent: July 27, 2004
    Assignee: Eastman Kodak Company
    Inventor: John R. Fyson
  • Patent number: 6753425
    Abstract: A processing composition for silver halide photographic light-sensitive materials, comprises a bis[2,6-diaminotriazin-4-yl]arylenediamine derivative having at least one of a sulfonic acid group, a carboxylic group and a hydroxyl group within the molecule. This processing composition can be applied to a color developer, a bleaching agent, a fixing agent, a bleach-fixing agent and a stabilizing agent and also to a processing agent in a concentration on use, a concentrated processing agent and a solid processing agent.
    Type: Grant
    Filed: April 16, 2003
    Date of Patent: June 22, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasufumi Nakai, Keizo Kimura, Masashi Ogiyama
  • Patent number: 6746832
    Abstract: A color image forming method that includes subjecting a silver halide color photosensitive material to an exposure, and then processing it with a processing solution, wherein at least one silver halide emulsion in the silver halide layers has silver halide grains of AgClBr, AgCeI, or AgClIBr grains, having a AgCl content of 95 mol % or more, and having at least one region where a AgBr and/or AgI content is higher than the other region; the exposure is performed based on digital image data for area modulation; and the processing solution contains at least one compound represented by formula (I) or (II):
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: June 8, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kentaro Okazaki, Takuya Yokokawa, Yasufumi Nakai
  • Publication number: 20040067457
    Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 8, 2004
    Inventors: John R. Fyson, Peter J. Twist
  • Publication number: 20040063046
    Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.
    Type: Application
    Filed: September 30, 2003
    Publication date: April 1, 2004
    Inventors: John R. Fyson, Peter J. Twist
  • Publication number: 20040009439
    Abstract: A processing composition for silver halide photographic light-sensitive materials, comprises a bis[2,6-diaminotriazin-4-yl]arylenediamine derivative having at least one of a sulfonic acid group, a carboxylic group and a hydroxyl group within the molecule. This processing composition can be applied to a color developer, a bleaching agent, a fixing agent, a bleach-fixing agent and a stabilizing agent and also to a processing agent in a concentration on use, a concentrated processing agent and a solid processing agent.
    Type: Application
    Filed: April 16, 2003
    Publication date: January 15, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yasufumi Nakai, Keizo Kimura, Masashi Ogiyama
  • Publication number: 20030224300
    Abstract: A photographic processing composition for silver halide color photographic lightsensitive material, comprising at least one compound represented by the formula (I):
    Type: Application
    Filed: June 18, 2003
    Publication date: December 4, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Makoto Suzuki, Yasufumi Nakai, Yoshiharu Yabuki
  • Patent number: 6653059
    Abstract: The present invention is a liquid processing composition for a color development of a silver halide color photographic material, which comprises: at least one specific compound; at least one glycol selected from the group consisting of ethylene glycol, diethylene glycol and triethylene glycol; and at least one polyethylene glycol having a number average molecular weight of from 1,000 to 2,000, and a development processing method using the same.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: November 25, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Seki
  • Publication number: 20030215757
    Abstract: A method of processing photosensitive materials in which one or more chemical compounds are at least partially retained after processing. The chemical compounds are unique to a particular process used by a copyright owner. The absence of the unique compounds in a processed material thus indicates that the processing has been without the authorization of the copyright owner.
    Type: Application
    Filed: May 13, 2003
    Publication date: November 20, 2003
    Applicant: Eastman Kodak Company
    Inventor: John R. Fyson
  • Patent number: 6638696
    Abstract: This invention provides a display element comprising a support, a phosphorescent material, and at least one layer containing a silver halide emulsion, wherein the phosphorescent material is not excited upon exposure of the silver halide emulsion. It further provides methods of exposing and processing such display elements.
    Type: Grant
    Filed: July 16, 2002
    Date of Patent: October 28, 2003
    Assignee: Eastman Kodak Company
    Inventor: Kevin M. Donovan
  • Publication number: 20030198902
    Abstract: A photographic processing composition, containing at least one compound of formula (I) or (II):
    Type: Application
    Filed: January 24, 2003
    Publication date: October 23, 2003
    Inventors: Makoto Suzuki, Yasufimi Nakai
  • Patent number: 6632594
    Abstract: A processing composition for a silver halide photographic material, which comprises at least one compound selected from the group consisting of compounds represented by the following general formulae (I) and (II):
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: October 14, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasufumi Nakai, Keizo Kimura, Shigeaki Tanaka, Yoshiharu Yabuki
  • Patent number: 6620579
    Abstract: The present invention provides a processing composition for a silver halide color photographic photosensitive material. The processing composition has excellent functions of reducing stain caused by residual dyes in a photosensitive material and of making no segregated deposit even in low temperature storage of the processing composition. The processing composition of the invention contains a bis-triazinylarylenediamine derivative and a diaminostilbene derivative. The invention also provides an image-formation process using the processing composition of the invention.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: September 16, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasufumi Nakai, Makoto Suzuki
  • Publication number: 20030170574
    Abstract: The invention relates to a photographic label comprising a pragmatic polymer sheet, at least one layer comprising at least one image forming layer comprising photosensitive silver halide grains and dye forming coupler above said pragmatic polymer sheet, wherein said at least one image forming layer has an exposure time to obtain a usable Dmax of 1.5 of less than 0.01 seconds, wherein said at least one image forming layer is substantially free of image dye stabilizers, and wherein said polymer sheet has an L* of greater than 95.
    Type: Application
    Filed: December 21, 2001
    Publication date: September 11, 2003
    Applicant: Eastman Kodak Company
    Inventors: John B. Rieger, Robert P. Bourdelais
  • Patent number: 6605420
    Abstract: A processing composition for silver halide photographic light-sensitive materials, comprises a bis[2,6-diaminotriazin-4-yl]arylenediamine derivative having at least one of a sulfonic acid group, a carboxylic group and a hydroxyl group within the molecule. This processing composition can be applied to a color developer, a bleaching agent, a fixing agent, a bleach-fixing agent and a stabilizing agent and also to a processing agent in a concentration on use, a concentrated processing agent and a solid processing agent.
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: August 12, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasufumi Nakai, Keizo Kimura, Masashi Ogiyama
  • Publication number: 20030148231
    Abstract: A process for removing stain in a photographic material is described which process comprises incorporation of at least one compound of the formula (I) 1
    Type: Application
    Filed: November 20, 2002
    Publication date: August 7, 2003
    Inventors: Christophe Bulliard, Georges Metzger, Sonia Megert
  • Publication number: 20030148230
    Abstract: The present invention is a liquid processing composition for a color development of a silver halide color photographic material, which comprises: at least one specific compound; at least one glycol selected from the group consisting of ethylene glycol, diethylene glycol and triethylene glycol; and at least one polyethylene glycol having a number average molecular weight of from 1,000 to 2,000, and a development processing method using the same.
    Type: Application
    Filed: August 22, 2002
    Publication date: August 7, 2003
    Inventor: Hiroyuki Seki
  • Publication number: 20030108827
    Abstract: A method of chemically marking photosensitive material that needs to be digitally scanned and adjusted rather than optically printed to produce a satisfactory hardcopy.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 12, 2003
    Applicant: Eastman Kodak Company
    Inventors: John R. Fyson, Peter J. Twist
  • Patent number: 6537656
    Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, and wherein said imaging member has a stiffness of between 50 and 250 millinewtons.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: March 25, 2003
    Assignee: Eastman Kodak Company
    Inventors: Narasimharao Dontula, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk
  • Publication number: 20030054298
    Abstract: A photographic processing composition for silver halide color photographic lightsensitive material, comprising at least one compound represented by the formula (I):
    Type: Application
    Filed: March 29, 2002
    Publication date: March 20, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Makoto Suzuki, Yasufumi Nakai, Yoshiharu Yabuki
  • Patent number: 6521399
    Abstract: The invention relates to a photographic element comprising at least one biaxially oriented sheet wherein said biaxially oriented sheet when viewed from a surface of said element emits light in the visible spectrum when exposed to ultraviolet radiation.
    Type: Grant
    Filed: June 9, 1998
    Date of Patent: February 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Peter T. Aylward, Thaddeus S. Gula
  • Publication number: 20020150846
    Abstract: The present invention provides a processing composition for a silver halide color photographic photosensitive material. The processing composition has excellent functions of reducing stain caused by residual dyes in a photosensitive material and of making no segregated deposit even in low temperature storage of the processing composition. The processing composition of the invention contains a bis-triazinylarylenediamine derivative and a diaminostilbene derivative. The invention also provides an image-formation process using the processing composition of the invention.
    Type: Application
    Filed: December 27, 2001
    Publication date: October 17, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yasufumi Nakai, Makoto Suzuki
  • Patent number: 6447976
    Abstract: The invention relates to an imaging member comprising an imaging layer and a base wherein said base comprises a closed cell foam core sheet and adhered thereto an upper and lower flange sheet, and wherein said imaging member has a stiffness of between 50 and 250 millinewtons and at least one layer of said base comprises whitening agent and said element has L* of greater than 90.4.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: September 10, 2002
    Assignee: Eastman Kodak Company
    Inventors: Narasimharao Dontula, Suresh Sunderrajan, Thaddeus S. Gula, William A. Mruk, Terry A. Heath
  • Publication number: 20020055071
    Abstract: A processing composition for silver halide photographic light-sensitive materials, comprises a bis[2,6-diaminotriazin-4-yl]arylenediamine derivative having at least one of a sulfonic acid group, a carboxylic group and a hydroxyl group within the molecule. This processing composition can be applied to a color developer, a bleaching agent, a fixing agent, a bleach-fixing agent and a stabilizing agent and also to a processing agent in a concentration on use, a concentrated processing agent and a solid processing agent.
    Type: Application
    Filed: August 21, 2001
    Publication date: May 9, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yasufumi Nakai, Keizo Kimura, Masashi Ogiyama
  • Publication number: 20010026909
    Abstract: A multi-part color developing kit includes at least two parts (or solutions) of photochemical compositions that can be mixed to provide a color developing composition useful for obtaining color photographic images. A first aqueous solution is formulated with a color developing agent in free base form, an antioxidant for the color developing agent, an inorganic base, a triazinylstilbene optical brightening agent, an chemical base and a water-miscible or water-soluble hydroxy-substituted, straight-chain organic solvent. A second aqueous solution is formulated with a buffering agent, the same or different chemical base and a phosphonic acid metal ion sequestering agent. Both solutions have a pH and homogeneity to provide a clear color developing composition that is safer for use and disposal.
    Type: Application
    Filed: May 9, 2001
    Publication date: October 4, 2001
    Inventors: Jean M. Buongiorne, Charles M. Darmon, Michael J. Haight, Erika S. McLarney, Barry C. Kocher, Sheridan E. Vincent, Charles S. Christ
  • Patent number: 6284444
    Abstract: A process for the processing of an imagewise exposed photographic material which has been subjected to development and bleach-fixing comprises a plurality of sequential washing steps and where a stain reducing agent is employed wherein the photographic material is contacted with an effective amount of the stain reducing agent in the wash liquid in a first washing step and the photographic material is subjected to a following washing step to remove the stain reducing agent. The process may employ a plurality of wash tanks in which the developed material is washed sequentially and the stain reducing agent is present in the wash liquid in a first wash tank and removed from the photographic material by the wash liquid in one or more following wash tanks. The temperature of wash liquids in the tanks is preferably within the range 40 to 70° C., preferably 45 to 65° C.
    Type: Grant
    Filed: August 18, 2000
    Date of Patent: September 4, 2001
    Assignee: Eastman Kodak Company
    Inventor: Peter J. Twist
  • Patent number: 6190827
    Abstract: A laser donor element comprising a transparent support having thereon the following layers in the order recited: a) a hydrophilic layer; b) a propellant layer comprising a gas-producing polymer being capable of forming a gas upon heating by the laser and an infrared-absorbing material, the propellant layer having been coated using a polar solvent having an Et value of between about 0.3 and 1.0; and c) a colorant transfer layer comprising a white pigment and an optical brightener dispersed in a binder.
    Type: Grant
    Filed: May 4, 2000
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventor: Charles H. Weidner
  • Patent number: 6174658
    Abstract: Disclosed is a silver halide photographic light sensitive material which has each of at least one silver halide photographic light sensitive emulsion layer and non-lightsensitive hydrophilic colloid layer, and solid fine particles of compound demonstrating fluorescent whitening effect in at least one of the silver halide photographic light sensitive emulsion layer and non-lightsensitive hydrophilic colloid layer. A silver halide photographic light sensitive material having an image excellent in sharpness and improved in whiteness and bright value of print is provided.
    Type: Grant
    Filed: November 3, 1998
    Date of Patent: January 16, 2001
    Assignee: Konica Corporation
    Inventor: Katsumasa Yamazaki
  • Patent number: 6127104
    Abstract: The present invention concerns a novel film for light boxes, in particular a reversal film for light box displays comprising a transparent support covered, in order, with a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, the support being covered on at least one of its faces with a layer comprising an opacifying compound in a quantity such that the minimum density of the film is between 0.2 and 0.6. This film also has compatibility with existing processing methods intended for reversal photographic products.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: October 3, 2000
    Assignee: Eastman Kodak Company
    Inventors: Gerard M. Droin, Yannick Begel, Didier M. Chigot
  • Patent number: 6120982
    Abstract: A silver halide photographic material comprises a red sensitive layer which contains a high chloride emulsion sensitized with at least two red sensitizing dyes. By adjusting the relative amounts of the two dyes the heat sensitivity of the red layer can be adjusted to match that of the blue sensitive and green sensitive layers to maintain color balance despite thermal fluctuations.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: September 19, 2000
    Assignee: Eastman Kodak Company
    Inventors: Richard Lee Parton, Paul Timothy Hahm
  • Patent number: 6080532
    Abstract: The invention relates to a photographic element comprising a transparent polymer sheet, at least one image layer on the topside and one image layer on the bottom side wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said photographic element has a spectral transmission of at least 90% and a reflection density less than 10%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: June 27, 2000
    Assignee: Eastman Kodak Company
    Inventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 6013425
    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: March 31, 1999
    Date of Patent: January 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Mary E. Craver, Jean M. Buongiorne
  • Patent number: 5972590
    Abstract: The present invention concerns a radiographic product which makes it possible to obtain an image with no residual yellow coloring. The radiographic product comprises at least one photosensitive silver halide tabular grain emulsion spectrally sensitized with a spectral sensitizing dye in the blue region having an emission peak between 400 and 500 nm, and an optical brightener derived from 4,4'-diaminostilbene disulfonic acid having at least three anionic sulfo groups, put in the photosensitive layer of the radiographic products or in at least one layer situated between the photo-sensitive layer and the support. The radiographic product is applicable to radiographic systems including one or two intensifying screens.
    Type: Grant
    Filed: March 6, 1997
    Date of Patent: October 26, 1999
    Assignee: Eastman Kodak Company
    Inventors: Gerard A. Friour, Francoise M. Thomas
  • Patent number: 5925506
    Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having on one surface thereof photographic layers including a silver halide emulsion layer, at least one of the photographic layers contains a fluorescent whitening agent, and satisfies the following equation 1:(A/B)<0.03 Equation 1wherein A is an intensity of fluorescent light at the maximum fluorescent wavelength generated from the light-sensitive material before processing when the light-sensitive material is irradiated by exciting light of wavelength of 360 nm and B is an intensity of fluorescent light at the maximum fluorescent wavelength thereof generated from the area not exposed to light of the light-sensitive material after processing when the processed light-sensitive material is irradiated by exciting light of wavelength of 400 nm.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: July 20, 1999
    Assignee: Konica Corporation
    Inventors: Hirokazu Sato, Shigeo Chino, Masahiro Shibuya
  • Patent number: 5817448
    Abstract: A silver halide photographic material comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer, wherein a silver halide emulsion in said at least one light-sensitive silver halide emulsion layer is a high silver chloride emulsion having a silver chloride content of 95 mol % or more, said support comprises a resin coated paper, and a resin layer of the side on which the light-sensitive silver halide emulsion layer is provided of said resin coated paper comprises at least a titanium dioxide pigment and at least one brightening agent(s) selected from the group consisting of a bis(benzoxazolyl)naphthalene based brightening agent, a bis(benzoxazolyl)thiophene based brightening agent, a coumarin based brightening agent and a pyrazoline based brightening agent.
    Type: Grant
    Filed: January 24, 1997
    Date of Patent: October 6, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Hayashi, Yuji Shirakura
  • Patent number: 5807666
    Abstract: The present invention provides a photographic element comprising an infrared light sensitive silver halide emulsion layer containing silver halide grains that exhibit low cubicity and are sensitized to a maximum absorption over 700 nm with a carbocyanine dye free of water soluble groups, wherein said layer additionally comprises a pyrimidino- or triazino-stilbene compound containing at least 6 sulfonic acid or sulfonate substituents.
    Type: Grant
    Filed: November 30, 1995
    Date of Patent: September 15, 1998
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Anne Troxell Wyand
  • Patent number: 5707781
    Abstract: The present invention relates a photopolymerizable composition which comprises:A) one or more ethylenically unsaturated, free-radical polymerizable monomers;B) one or more organic binders; andC) one or more photoinitiators, wherein the photoinitiator is an acyl or diacyl phosphine oxide, in combination with a fluorescent optical brightener;and a process for producing such a photopolymerizable composition.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: January 13, 1998
    Assignee: Bayer Corporation
    Inventor: Wojciech A. Wilczak
  • Patent number: 5534395
    Abstract: A method of processing a silver halide color photographic material by processing with a color developing solution an imagewise exposed silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and immediately thereafter processing said photographic material with a bleach-fixing solution, wherein said bleach-fixing solution contains an imidazole compound represented by the following formula (.alpha.) and the replenishment rate of said bleach-fixing solution is 200 ml or less per m.sup.2 of the photographic material: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 each represents a hydrogen atom, an alkyl group having from 1 to 5 carbon atoms, a hydroxyalkyl group having from 1 to 5 carbon atoms, or an alkenyl group.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 9, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsushige Kamada, Kazuaki Yoshida
  • Patent number: 5523200
    Abstract: The invention generally relates to a method of silver halide grain finishing comprising providing a high chloride silver halide grain emulsion and adding a silver bromide fine grain Lippmann emulsion during the chemical sensitization heat cycle for each grain wherein said fine grain emulsion has a photographically useful compound adhered to said fine grain Lippmann emulsion.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: June 4, 1996
    Assignee: Eastman Kodak Company
    Inventors: Paul T. Hahm, Walter H. Isaac, Heinz E. Stapelfeldt
  • Patent number: 5512620
    Abstract: Benzoxazolyl brightner compounds and thermoplastic combinations containing such are provided herein. The thermoplastic compositions comprise a thermoplastic resin, a phosphite heat stabilizer present in reduced levels, a brightner present in reduced levels and a pigment. Preferably the thermoplastic resin composition is transparent in nature. The compositions are useful for making molded and blow molded articles which require high levels of transparency, for example, glazing materials such thermoplastic windows. The composition exhibits enhanced appearance, namely a bright natural color in combination with low levels of yellowness by utilizing in combination reduced levels of phosphite and reduced levels of brightner, with moderate levels of pigment.
    Type: Grant
    Filed: May 5, 1994
    Date of Patent: April 30, 1996
    Assignee: General Electric Company
    Inventors: Henricus H. M. van Hout, James F. Hoover, Karl H. Roell, Augustina M. Willemsen
  • Patent number: 5500332
    Abstract: An ultraviolet absorbing compound of formula (I) below, and photographic elements containing such a compound as an ultraviolet absorber: ##STR1## wherein: R.sub.4 is H or an alkyl group, and the benzo or phenyl ring shown may be further substituted or unsubstituted;X is --C(O)O-- wherein the carbonyl carbon is bonded to the N of NR.sub.4, or X is --SO.sub.2 --;L is a bivalent linking group;p is 0 or 1;A* is an alkyl group having an asymmetric carbon or silicon atom, and;wherein the ultraviolet absorbing compound of formula (I) is a mixture of two enantiomers about the asymmetric carbon or silicon of A*.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: March 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Lal C. Vishwakarma, Glenn Brown
  • 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: 5395742
    Abstract: There is disclosed a novel diaminostilbene series compound, a method for forming an image using the same, and a composition comprising the same. The diaminostilbene compound is represented by the following formula (I): ##STR1## wherein L.sup.1 and L.sup.2, which are the same or different, each represent --OR.sup.1 or --N--R.sup.2 (R.sup.3), wherein the four substituents L.sup.1 and L.sup.2 have four or more substituents in total selected from substituents represented by the following formula (II);R.sup.1 and R.sup.2 each represent a hydrogen atom, an alkyl group, or an alkyl group having a substituent selected from substituents represented by the formula (II);R.sup.3 represents an alkyl group or an alkyl group having a substituent selected from substituents represented by the formula (II); andM represents a hydrogen atom, an alkali metal, an ammonium, or a pyridinium:formula (II)--SO.sub.3 M, --OSO.sub.3 M, --COOM, and --NR.sub.
    Type: Grant
    Filed: May 16, 1994
    Date of Patent: March 7, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuaki Deguchi, Toshiaki Kubo
  • Patent number: 5395748
    Abstract: An inexpensive, ballasted optical brightener for use in photographic elements is prepared by reacting an optical brightener of the formula ##STR1## where M is a cation; X is a group capable of undergoing nucleophilic displacement; and Z is ##STR2## or --O--R.sub.3, where each of R1 and R2 is a hydrogen atom, or an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards X; and R3 is an aromatic group which can be unsubstituted or substituted with one or more groups unreactive towards Xwith a water soluble polymer, such as gelatin. The resulting ballasted optical brightener is stable in aqueous photographic compositions.
    Type: Grant
    Filed: December 8, 1993
    Date of Patent: March 7, 1995
    Assignee: Eastman Kodak Company
    Inventors: Anthony Adin, Pranab Bagchi