Patents Represented by Attorney J. Lanny Tucker

Find this attorney in the Justia Lawyer Directory

  • Thermally sensitive imaging materials containing phthalazine precursor
    Patent number: 6630291
    Abstract: Aqueous-based thermally sensitive emulsions and photothermographic imaging materials include phthalazine N-oxide or a derivative thereof to improve raw stock keeping and to extend the useful range of processing temperatures without interfering with spectral sensitization. The emulsions and photothermographic materials may also include a cyclic imide, phthalazinone, benzoxazine dione, benzthiazine dione, or quinazoline dione as a development promoter.
    Type: Grant
    Filed: August 21, 2002
    Date of Patent: October 7, 2003
    Assignee: Eastman Kodak Company
    Inventors: Joe E. Maskasky, Victor P. Scaccia, David A. Dickinson
  • Stable photographic color developing composition and method of use
    Patent number: 6623915
    Abstract: Concentrated and working strength photographic color developing compositions are stabilized with the inclusion of a sulfur compound as a preservative for a color developing agent. The preservative can be represented by one of the following Structures I, II, III, and IV: M1S—R—CH(NH2)—COOM2   (I) M1S—R1—COOM2   (II) R2—S—S—R2   (III) R3HN—R4—SM1   (IV) wherein R is a divalent aliphatic linking group having at least 1 carbon atom in the chain, R1 is phenylene or an unsubstituted alkylene having 1 or 2 carbon atoms, R2 is a monovalent aliphatic group having at least 2 carbon atoms and comprising a —CH(NHR3)—COOM2 or —(C1-C3)alkylene-CH(NHR3)—COOM2 group, R3 is hydrogen, an alkyl group having 1 to 3 carbon atoms or phenyl, R4 is an alkylene group, a cyclohexylene group, or a phenylene group, and M1 and M2 are independently hydrogen, an alkali metal or ammonium ion or methyl group.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: September 23, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston
  • Thermal imaging composition and imaging member containing polymethine IR dye and methods of imaging and printing
    Patent number: 6623908
    Abstract: An imaging member, such as a negative-working printing plate or on-press cylinder, has an imaging layer comprised of a thermally sensitive ionomer (charged polymer) and a photothermal conversion material that is a bis(aminoaryl)polymethine dye that is soluble in water or a water-miscible organic solvent, and that has a &lgr;max greater than 700 nm as measured in water or the water-miscible organic solvent.
    Type: Grant
    Filed: March 28, 2001
    Date of Patent: September 23, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shiying Zheng, Ruizheng Wang, Kevin W. Williams
  • High speed photothermographic materials containing selenium compounds and methods of using same
    Patent number: 6620577
    Abstract: Photothermographic imaging materials having increased photospeed are provided by certain selenium chemical sensitizers that are added during the formulation of a photothermographic emulsion. These selenium chemical sensitizers can be used alone or in combination with other sulfur, tellurium, or gold chemical sensitizers as well as with oxidatively decomposed sulfur-containing compounds.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: September 16, 2003
    Assignee: Eastman Kodak Company
    Inventors: Doreen C. Lynch, Andrea L. Opatz, Henry J. Gysling, Sharon M. Simpson
  • Thermally developable emulsions and materials containing phthalazine compounds
    Patent number: 6605418
    Abstract: Thermally developable compositions such thermographic and photothermographic emulsions include certain quaternary phthalazine compounds. These emulsions can be used in thermally developable materials such as thermographic and photothermographic materials to provide improved sensitometric and post processing properties. Such materials can have imaging layers on one or both sides of the support.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: August 12, 2003
    Assignee: Eastman Kodak Company
    Inventors: William D. Ramsden, Chaofeng Zou
  • Black-and-white developing compositions and methods of use
    Patent number: 6602655
    Abstract: A concentrated black-and-white photographic developing composition has improved stability, is compatible with the environment and provides desired sensitometric properties with a combination of particular antifoggants. These antifoggants include a mercapto-substituted tetrazole and a benzimidazole that has one or more electron withdrawing groups. This concentrated composition can be used as a first “part” and mixed, upon dilution, with a diluted second “part” that is a concentrated composition of a gelatin hardening agent. When mixed together, the two diluted concentrates form a working strength developing composition that can be used to provide black-and-white images in various photographic silver halide materials, and particularly in radiographic films.
    Type: Grant
    Filed: April 18, 2002
    Date of Patent: August 5, 2003
    Assignee: Eastman Kodak Company
    Inventors: Alan S. Fitterman, Joan F. Rachel
  • Thermally developable imaging materials having improved shelf stability and stabilizing compositions
    Patent number: 6599685
    Abstract: Thermally developable photothermographic materials comprise a backside layer that includes a toner as a backside stabilizer. Useful backside stabilizers include pyridazine, phthalazine, phthalazinone, benzoxazine dione, benzthiazine dione, or quinazoline dione compounds, or derivatives of any of these compounds to provide improved shelf stability. These backside stabilizers can be provided particularly in non-photosensitive compositions that include an antihalation composition.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: July 29, 2003
    Assignee: Eastman Kodak Company
    Inventor: Steven H. Kong
  • Photothermographic element with reduced woodgrain interference patterns
    Patent number: 6599686
    Abstract: The present invention provides a spectrally sensitized photothermographic silver halide element comprising a support layer having on at least one surface thereof a photothermographic composition which displays uniform image density across its surface when exposed to floodlight or uniform incandescent light exposure at radiation wavelengths to which the element is sensitive, said element comprising at least two layers, including a top layer and a photothermographic emulsion layer, said photothermographic emulsion layer comprising a binder, a light insensitive silver source, a reducing agent for silver ion and infrared radiation sensitive silver halide grains, wherein the coherent radiation is rendered more diffuse in its passage through the element than when it strikes the top layer. This may be accomplished at least in part by 1) the top layer of the element having haze induced therein of 0.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: July 29, 2003
    Assignee: Eastman Kodak Company
    Inventors: Thomas C. Geisler, Thomas J. Kub, Darlene F. Stewart, Paul C. Schubert, James C. Vanous, Mark C. Skinner
  • Stable photographic color developing composition and method of use
    Patent number: 6599688
    Abstract: Concentrated and working strength photographic color developing compositions are stabilized with the inclusion of an &agr;-ketocarboxylic acid or salt thereof, such as pyruvic acid or a salt thereof. These compositions can be used to process color photographic materials.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: July 29, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston
  • Ferrous photographic bleach-fixing precursor compositions and methods for their use
    Patent number: 6582893
    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: Grant
    Filed: April 3, 2002
    Date of Patent: June 24, 2003
    Assignee: Eastman Kodak Company
    Inventors: Sheridan E. Vincent, Valerie L. Kuykendall, Jean M. Buongiorne
  • Heat-stabilized IR-sensitive thermally developable imaging materials
    Patent number: 6582892
    Abstract: A black-and-white photothermographic material that is sensitive at a wavelength greater than 700 nm, and comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more indolenine dyes as post-processing stabilizing compounds and one or more merocyanine dyes or cyanine spectral sensitizing dyes that comprise one or more thioalkyl, thioaryl, or thioether groups.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: June 24, 2003
    Assignee: Eastman Kodak Company
    Inventors: Steven H. Kong, Bryan V. Hunt, William D. Ramsden
  • Radiation oncology treatment portal imaging film and method of use
    Patent number: 6582874
    Abstract: Radiographic films containing cubic grain, high silver chloride emulsions can be used in radiographic imaging assemblies comprising intensifying screens for therapy portal localization imaging. The average silver halide grain size is from about 0.1 to about 0.18 &mgr;m and the silver halide is free of silver halide dopant compounds. These films provide excellent contrast with improved exposure latitude (at least 4:1 when measured at a gamma value of 1.5) for use in various exposure conditions and equipment.
    Type: Grant
    Filed: November 7, 2002
    Date of Patent: June 24, 2003
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, William E. Moore
  • Thermal switchable composition and imaging member containing complex oxonol IR dye and methods of imaging and printing
    Patent number: 6579662
    Abstract: An imaging member, such as a negative-working printing plate or on-press cylinder, can be prepared with a hydrophilic imaging layer comprised of a heat-sensitive hydrophilic charged polymer (ionomer) and an infrared radiation sensitive negatively-charged oxonol dye that has a &lgr;max of greater than 700 nm. The heat-sensitive polymer and IR dye can be formulated in water or water-miscible solvents to provide highly thermal sensitive imaging compositions. In the imaging member, the polymer reacts to provide increased hydrophobicity in areas exposed to energy that provides or generates heat. For example, heat can be supplied by laser irradiation in the IR region of the electromagnetic spectrum. The heat-sensitive polymer is considered “switchable” in response to heat, and provides a lithographic image without conventional alkaline processing.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: June 17, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shiying Zheng, Kevin W. Williams
  • High-speed thermally developable imaging materials and methods of using same
    Patent number: 6576410
    Abstract: High-speed black-and-white photothermographic emulsions and materials comprise chemically sensitized photosensitive silver halide grains, at least 70% of the total photosensitive silver halide projected area being provided by tabular silver halide grains comprising at least 70 mole % bromide (based on total silver halide). The tabular grains have an average thickness of at least 0.02 &mgr;m and up to and including 0.10 &mgr;m, an equivalent circular diameter of at least 0.5 &mgr;m and up to and including 8 &mgr;m, and an aspect ratio of at least 5:1. These high-speed materials can be imaged in any suitable fashion using ultraviolet, visible, infrared, or X-radiation. In one embodiment, they have one or more thermally developable layers on both sides of the support and can be imaged using X-radiation with or without a phosphor intensifying screen in an imaging assembly.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: June 10, 2003
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Robert D. Wilson, Richard L. Daubendiek, Timothy R. Gersey
  • Stable multi-part photographic color developing composition and method of use
    Patent number: 6573035
    Abstract: A multi-part (two-part or three-part) color developing kit includes aqueous solutions containing sulfite ions and a color developing agent. An &agr;-ketocarboxylic acid or salt thereof, such as pyruvic acid or a salt thereof, is included in one or more of the aqueous solutions. These solutions can be combined, with or without dilution, to provide a color developing composition that can be used to process color photographic materials.
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: June 3, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston
  • X-radiation sensitive aqueous-based photothermographic materials and methods of using same
    Patent number: 6573033
    Abstract: Aqueous-based photothermographic materials that are sensitive to visible or X-radiation contain X-radiation sensitive phosphors in association with specific chemically sensitized tabular silver halide grains. The silver halide grains comprise at least 70 mol % bromide, based on total silver halide, have an average thickness of at least 0.02 &mgr;m and up to and including 0.10 &mgr;m, an equivalent circular diameter (ECD) of at least 0.5 &mgr;m and up to and including 8 &mgr;m, and an aspect ratio of at least 5:1. These materials can be imaged in any suitable fashion but preferably they have one or more photothermographic layers on both sides of the support and can be imaged using X-radiation with or without an associated phosphor intensifying screen.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: June 3, 2003
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Simpson, William E. Moore
  • Thermal imaging composition and member and methods of imaging and printing
    Patent number: 6569597
    Abstract: An imaging member, such as a negative-working printing plate or on-press cylinder, has an imaging layer comprised of a thermally sensitive compound and a photothermal conversion material. The thermally sensitive compound comprises a heat-activatable aromatic cyclic sulfonium zwitterion group represented by the following Structure I: wherein Ar is a substituted or unsubstituted aromatic group, X and Y are independently substituted or unsubstituted methylene groups, and n is 1 or 2. The thermally sensitive compound can be a polymer or a small molecule compound. In the imaging member, the thermally sensitive compound reacts to provide increased hydrophobicity in areas exposed to energy that provides or generates heat. The imaging layer is considered “switchable” and can be used to provide a lithographic printing image without traditional alkaline wet processing.
    Type: Grant
    Filed: January 19, 2001
    Date of Patent: May 27, 2003
    Assignee: Eastman Kodak Company
    Inventor: Shiying Zheng
  • Asymmetric silver salt dimers and imaging compositions, materials and methods using same
    Patent number: 6566045
    Abstract: A non-photosensitive silver dimer compound comprises two different silver salts, provided that when the two different silver salts comprise straight-chain, saturated hydrocarbon groups as the silver coordinating ligands, those ligands differ by at least 6 carbon atoms. Many of these silver dimer compounds can be represented by the following Structure I: wherein each E is independently oxygen, sulfur, nitrogen, selenium, or tellurium, R and R′ are different alkyl groups, aryl groups, aromatic heterocyclic groups, or halo atoms, provided that when E is oxygen, R and R′ are both straight-chain, saturated hydrocarbon groups, those hydrocarbon groups differ from each other by at least 6 carbon atoms. These silver dimer compounds are useful in thermally-developable imaging materials including thermographic and photothermographic materials.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: May 20, 2003
    Assignee: Eastman Kodak Company
    Inventor: David R. Whitcomb
  • Thermally developable imaging materials containing heat-bleachable antihalation composition
    Patent number: 6558880
    Abstract: Photothermographic materials comprise heat-bleachable antihalation compositions in backside antihalation layers. These compositions comprise a hexaarybiimidazole and an oxonol dye that can be represented by the following Structure I: A1═L1—(L2═L3)p—(L4═L5)q—(L6═L7)r—A2−(M)k wherein A1 and A2 are the same or different activated methylene moieties, L1 through L7 independently represent a substituted or unsubstituted methine group, M represents a counterion, k is the number of M counterions necessary to provide neutral charge for Structure I, p, and q, are independently 0 or 1, and r is 0, 1, or 2. The antihalation composition is typically bleached when subjected to a temperature of at least 90° C. for at least 0.5 seconds.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: May 6, 2003
    Assignee: Eastman Kodak Company
    Inventors: Ramanuj Goswami, William D. Ramsden, Paul A. Zielinski, David G. Baird, LuAnn K. Weinstein, Margaret J. Helber, Doreen C. Lynch
  • Photographic silver halide material with matte support
    Patent number: 6555301
    Abstract: Photographic silver halide materials are prepared in a more economical and environmentally acceptable manner by using a specific matting agent in a adhesion-promoting layer between a polymeric support and one or more silver halide emulsion layers. The matting agent has an average particle size of at least 1 &mgr;m and up to about 10 &mgr;m and a glass transition temperature of at least 120° C. Specific matting agents are composed of a polymer represented by the following Structure I: wherein A represents recurring units derived from one or more polyfunctional ethylenically unsaturated polymerizable monomers, and B represents recurring units derived from one or more monofunctional ethylenically unsaturated polymerizable monomers, x is from about 5 to 100 weight %, and y is from 0 to about 95 weight %.
    Type: Grant
    Filed: July 9, 2002
    Date of Patent: April 29, 2003
    Assignee: Eastman Kodak Company
    Inventors: Dennis E. Smith, Patrick M. Lynch, Pedro R. Quinones, Eric J. Adsit