Patents Represented by Attorney J. Lanny Tucker

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  • Negative-working thermal imaging member and methods of imaging and printing
    Patent number: 6551757
    Abstract: A negative-working imaging member can be used as a lithographic printing plate without ablation. The imaging member comprises a support and an imaging layer that includes a dispersion of at least 0.05 g/m2 of a cyanoacrylate polymer that is thermally degradable below 200° C., a photothermal conversion material that is present in an amount to provide a dry weight ratio to the cyanoacrylate polymer of from about 0.02:1 to about 0.8:1, and a hydrophilic binder to provide a dry weight ratio of a hydrophilic binder to the cyanoacrylate polymer of up to 1:1. Thermal imaging energy causes the exposed areas of the imaging layer to adhere to the support while unexposed areas can be readily washed off and/or simultaneously inked for press runs.
    Type: Grant
    Filed: May 24, 2001
    Date of Patent: April 22, 2003
    Assignee: Eastman Kodak Company
    Inventors: David B. Bailey, Charles W. Lander
  • Thermally developable emulsions and imaging materials containing mixture of silver ion reducing agents
    Patent number: 6548233
    Abstract: Aqueous-based thermally sensitive emulsions and imaging materials include two or more hindered phenol silver ion reducing agents in a non-crystalline reducing agent composition. Such compositions can be provided as evaporated dispersions and can be formulated in aqueous coating compositions to provide thermally developable materials such as thermographic and photothermographic materials.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: April 15, 2003
    Assignee: Eastman Kodak Company
    Inventors: John W. Boettcher, Paul L. Zengerle, Roger L. Klaus
  • Odorless photographic fixing composition and method of use
    Patent number: 6541190
    Abstract: A photographic fixing composition has reduced odor and improved storage stability. It comprises a thiosulfate fixing agent, sulfite ions, and a phthalic acid or salt thereof. This fixing composition can be used in various photographic processing protocols to provide color images from color photographic silver halide materials.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: April 1, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston, Therese M. Feller, Eric R. Schmittou
  • Complex oxonol infrared radiation sensitive compounds
    Patent number: 6538140
    Abstract: Infrared radiation-sensitive compounds have been found that are represented by Structure DYE as follows: wherein R is a substituted or unsubstituted alkyl group, substituted or unsubstituted cycloalkyl group, substituted or unsubstituted heterocyclic group, or substituted or unsubstituted carbocyclic aromatic group, R1 and R1 are independently substituted or unsubstituted heterocyclic or carbocyclic aromatic groups, and M+ is a monovalent cation. These compounds have a &lgr;max above 700 nm and are can be used in a number of photosensitive or heat-sensitive imaging materials.
    Type: Grant
    Filed: September 5, 2001
    Date of Patent: March 25, 2003
    Assignee: Eastman Kodak Company
    Inventors: Kevin W. Williams, Shiying Zheng
  • Direct photographic bleach-fixing replenishment using ferrous bleach-fixing precursor composition
    Patent number: 6534253
    Abstract: Photographic bleach-fixing solutions in a processing chamber can be directly replenished using a single-part photographic bleach-fixing “precursor” composition that comprises 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). Immediately prior to or during directly supplying the precursor composition to the processing chamber from an enclosed container, sufficient ferrous ions are converted to ferric ions to provide desired bleaching in the processing chamber.
    Type: Grant
    Filed: November 15, 2001
    Date of Patent: March 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: Valerie L. Kuykendall, Sheridan E. Vincent, Daniel R. English
  • Concentrated photographic fixer additive and fixing compositions and method of photographic processing
    Patent number: 6528242
    Abstract: Concentrated aqueous photographic fixing compositions include a photographic fixing agent and a compound represented by Structure I wherein R is carboxy or sulfo, m is an integer of from 0 to 7 and n is an integer of from 2 to 5. This compound is provided in a concentrated aqueous fixer additive composition. These compositions can be used to provide images in color photographic materials, and particularly in color reversal films, with reduced residual sensitizing dye stain.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: March 4, 2003
    Assignee: Eastman Kodak Company
    Inventors: Jean M. Buongiorne, Mary E. Craver, Ramanuj Goswami
  • Radiographic phosphor panel having reflective polymeric supports
    Patent number: 6521329
    Abstract: A radiographic phosphor panel includes a phosphor layer that transmits actinic radiation in a range that is reflected by a transparent, polymeric multi-layer reflector used as a support. The polymeric multi-layer reflector has numerous alternating layers of at least two different polymeric materials and reflects at least 50% of actinic radiation in the range of wavelengths to which the phosphor is sensitive. The use of this polymeric multi-layer reflector in the radiographic phosphor panel provides increased photographic speed when it is used in imaging assemblies with photosensitive recording materials such as radiographic silver halide films.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: February 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, David J. Steklenski, James F. Elman
  • Three-part concentrated photographic color developing kit and methods of use
    Patent number: 6518003
    Abstract: A three-part color developing kit includes (I) a first concentrated aqueous solution having a pH of from about 11 to about 13.5 and comprising at least 0.25 mol/l of sulfite ions, at least 2.5×10−5 mol/l of iodide ions, at least 0.05 mol/l of bromide ions, and at least 0.5 mol/l of a buffer having a pKa of from about 11 to about 13.5, (II) a second concentrated aqueous solution having a pH of from about 3 to about 6 and comprising at least 1 g/l of a vinyl pyrrolidone polymer, and at least 0.05 mol/l of an organic antioxidant, and a third concentrated aqueous solution having a pH of from about 1 to about 3 and comprising at least 0.05 mol/l of a color developing agent, and at least 0.005 mol/l of sulfite ions.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: February 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston
  • Low silver radiographic film with improved visual appearance
    Patent number: 6517986
    Abstract: Radiographic films exhibit improved visual performance because of the presence of certain colorants that provide more positive a* values without diminishing image tone (b*). Thus, the greenish tint the films may exhibit is reduced. These films provide desired sensitometric properties while they have reduced silver, hydrophilic polymer binder, and hardener coverage on both sides of a transparent support.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: February 11, 2003
    Assignee: Eastman Kodak Company
    Inventor: Robert E. Dickerson
  • Photographic bleaching solution containing organic phosphorus acid anti-rust agent and method of use
    Patent number: 6518002
    Abstract: An effective, biodegradable photographic bleaching solution comprises, as a bleaching agent, a ferric alkyliminodiacetic acid complex, and a particular organic phosphonic or phosphinic acid as an anti-rust agent. This anti-rust agent reduces or eliminates the formation of iron hydroxide in the processing solutions following the bleaching step, and further improves bleaching effectiveness.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: February 11, 2003
    Assignee: Eastman Kodak Company
    Inventor: David G. Foster
  • Photothermographic materials containing solubilized antifoggants
    Patent number: 6514678
    Abstract: Aqueous-based photothermographic materials have improved stability to increase in Dmin during aging by including certain water-soluble or water-dispersible antifoggants that have a pKa of 8 or less. These antifoggants are represented by Structure I: R1—SO2—C(R2)R3—(CO)m—(L)n—SG  I wherein R1 is an aliphatic or cyclic group, R2 and R3 are independently hydrogen or bromine as long as at least one of them is bromine, L is an aliphatic divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group having a pKa of 8 or less.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: February 4, 2003
    Assignee: Eastman Kodak Company
    Inventors: George J. Burgmaier, Roger L. Klaus
  • Thermally developable infrared sensitive imaging materials containing heat-bleachable antihalation composition
    Patent number: 6514677
    Abstract: Photothermographic materials comprise heat-bleachable antihalation compositions in antihalation layers. These compositions comprise a hexaarybiimidazole and one or more infrared radiation absorbing compounds that are represented by the following Structure I: A1—L1—A2  I wherein A1 represents a group derived from a dye base, a heterocyclic group, or an electron-donating aromatic group, A2 represents a group derived from a dye base, a heterocyclic group, a group derived from a dye acid, or an electron-donating aromatic group, and L1 represents a conjugated linking group that maintains electron delocalization between A1 and A2 to provide infrared absorbance. 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: August 31, 2001
    Date of Patent: February 4, 2003
    Assignee: Eastman Kodak Company
    Inventors: William D. Ramsden, David G. Baird
  • Thermographic imaging elements and processes for their use
    Patent number: 6509296
    Abstract: A thermally imageable element can be imaged using heat alone without the need for photosensitivity or post-imaging processing. The element contains image-forming chemistry that comprises i) image precursor chemistry and ii) a catalyst or a catalyst precursor that upon imagewise heating is capable of promoting thermally induced image formation with the image precursor chemistry. The image-forming chemistry i) and ii) components are in reactive association and uniformly dispersed or dissolved within a binder in one or more layers of the element. Thus, the element is capable of being thermally addressed to provide a visible image as a result of thermally induced catalytic transformation of the image-forming chemistry.
    Type: Grant
    Filed: March 27, 2000
    Date of Patent: January 21, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mark Lelental, Henry J. Gysling, David F. Jennings
  • Concentrated photographic color developing composition containing stain reducing agent
    Patent number: 6509143
    Abstract: Concentrated aqueous photographic color developing compositions include a photographic color developing agent in free base form and a compound represented by Structure I wherein R is carboxy or sulfo, m is an integer of from 0 to 7, and n is an integer of from 2 to 5. These compositions can be used to provide images in color silver halide photographic materials with reduced residual sensitizing dye stain.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: January 21, 2003
    Assignee: Eastman Kodak Company
    Inventors: Jean M. Buongiorne, Ramanuj Goswami, Mary E. Craver
  • Calcium ion stable photographic color developing composition and method of use
    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
  • Photographic processing compositions and methods of using in color reversal image formation
    Patent number: 6500606
    Abstract: A photographic prebleaching or conditioning composition is useful for providing color positive images in color reversal photographic materials. This composition includes at least 0.0001 mol/l of a cyclic mercapto bleach accelerating agent and at least 0.0001 mol/l of a water-soluble or water-dispersible 2,6-diarylaminotriazine or diaminostilbene dye stain reducing agent. The amounts of the dye stain reducing agent and bleach accelerating agents are determined according to the following equation: [bleach accelerating agent, mol/l]≧0.01−10[dye stain reducing agent, mol/l].
    Type: Grant
    Filed: February 13, 2001
    Date of Patent: December 31, 2002
    Assignee: Eastman Kodak Company
    Inventors: Harry J. Price, Michael P. Youngblood, Ramanuj Goswami
  • Portal imaging assembly with magenta filter and method of use
    Patent number: 6489076
    Abstract: A radiographic imaging assembly has first and second radiographic silver halide films in association with two fluorescent intensifying screens. Between one set of screen and film is a magenta filter having a density of at least 0.3 to provide improved exposure latitude for use in various exposure conditions and equipment. The magenta filter comprises a transparent support having a hydrophilic layer disposed thereon, which layer includes sufficient dyes or pigments that absorb in the range of from about 500 to about 600 nm. These dyes or pigments are dispersed in a hydrophilic binder to provide the desired density. The magenta filter is laminated to one of the screens with its hydrophilic layer in contact with the screen.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: December 3, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, William E. Moore
  • Portal imaging assembly with pair of asymmetric screens and method of use
    Patent number: 6489077
    Abstract: A radiographic imaging assembly has two different (“asymmetric”) fluorescent intensifying screens on either side of two radiographic silver halide films. The two fluorescent intensifying screens differ in speed by at least 0.1 logE. This imaging assembly provides high contrast images and improved exposure latitude for use in various exposure conditions and equipment. The two films can be the same or different (for example, providing images of different contrast).
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: December 3, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, William E. Moore
  • Stabilized ascorbic acid developing compositions and methods of use
    Patent number: 6489090
    Abstract: A black-and-white photographic developing composition has improved stability and is more compatible with the environment when discarded. The composition includes one or more ascorbic acid developing agents and a preservative (such as a sulfite) and is essentially free of hydroquinone and similar developing agents. It comprises an &agr;-ketocarboxylic acid stabilizing agent at a molar ratio to the ascorbic acid developing agent of from about 0.05:1 to about 2.5:1, and at a molar ratio to the preservative of from about 0.05:1 to about 6.25:1.
    Type: Grant
    Filed: August 21, 2000
    Date of Patent: December 3, 2002
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston, Jacques Roussilhe, Hugh G. McGuckin
  • Asymmetric contrast portal imaging assembly and method of use
    Patent number: 6485882
    Abstract: A radiographic imaging assembly has a first radiographic silver halide film that provides high contrast images in association with a second radiographic silver halide film that provides lower contrast images. The combination of two films, with or without one or more fluorescent intensifying screens, provides images with excellent contrast and improved exposure latitude for use in various exposure conditions and equipment. The ratio of contrast of images provided by the first and second radiographic silver halide films is at least 1.25.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: November 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, William E. Moore