Patents Represented by Attorney, Agent or Law Firm Sarah Meeks Roberts
  • Patent number: 6518007
    Abstract: This invention relates to a multicolor silver halide photographic element comprising a support and at least one high bromide silver halide emulsion layer comprising low fogging tabular silver halide grains, said element further comprising an antifoggant represented by the following 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 a divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group that has a pKa of 8 or less.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: February 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Kenneth J. Reed, George J. Burgmaier, John E. Keevert, Roger L. Klaus
  • Patent number: 6506548
    Abstract: This invention relates to a silver halide photographic element comprising at least one silver halide emulsion layer and further comprising an antifoggant represented by the following Structure 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 a divalent linking group, m and n are independently 0 or 1, and SG is a solubilizing group that has a pKa of 8 or less.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: January 14, 2003
    Assignee: Eastman Kodak Company
    Inventors: Roger L. Klaus, George J. Burgmaier, Jon N. Eikenberry, Jerzy Z. Mydlarz, Nicholas E. Grzeskowiak
  • Patent number: 6506934
    Abstract: This invention relates to a compound that is represented by the following 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 divalent linking group, m and n are independently 0 or 1, SG is a solubilizing group with a pKa of 8 or less, with the proviso that when m and n are both 0, SG is not a sulfo (or salt thereof) or a sulfonamido (or salt thereof) and when m is 0 and n is 1, either L is not an alkylene group or SG is not a carboxy (or salt thereof).
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: January 14, 2003
    Assignee: Eastman Kodak Company
    Inventors: George J. Burgmaier, Roger L. Klaus
  • Patent number: 6498004
    Abstract: This invention provides a photographic element comprising at least one silver halide emulsion layer in which the silver halide is sensitized with a compound of the formula (a): &Dgr;−(t)m−XY′  (a) XY′−(t)m−&Dgr;  (b) &Dgr;−(t)m−XY′−(t)m−&Dgr;  (c) wherein &Dgr; is protective group that is eliminated during development of the photographic element, t is a timing group, m is an integer from 0 to 3, and XY′ is a fragmentable electron donor moiety in which X is an electron donor group and Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is present in the emulsion or is covalently linked directly or indirectly to X, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: December 24, 2002
    Assignee: Eastman Kodak Company
    Inventors: Jerome R. Lenhard, Annabel A. Muenter, Stephen A. Godleski, Paul A. Zielinski, Deepak Shukla, Donald R. Diehl
  • Patent number: 6489089
    Abstract: A method of bleaching and fixing a developed silver halide color negative element comprising mixing a bleaching solution containing an oxidizing agent with a fixing solution containing a silver ion solubilizing agent to form a bleach-fixing solution; shortly after or simultaneously with said mixing, bleach/fixing the silver halide element by contacting it with the bleach/fixing solution; and discarding the bleach/fixing solution after one use; wherein the bleach/fixing step is performed at an elevated temperature; and wherein the silver halide color negative element comprises a silver bromoiodide emulsion with an average iodide content of more than 1 mol % iodide.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: December 3, 2002
    Assignee: Eastman Kodak Company
    Inventors: Eric R. Brown, John R. Fyson
  • Patent number: 6485897
    Abstract: This invention relates to a photographic element comprising a support having thereon light sensitive silver halide layers comprising at least one red light sensitive silver halide layer, at least one green light sensitive silver halide layer, and at least one blue sensitive silver halide layer, wherein the green light sensitive silver halide layer has an absorption spectra having a maximum absorption at a wavelength &lgr;max from 530 to 560 nm and a half bandwidth less than 50 nm; and the red light sensitive silver halide layer has an adsorption spectra having a maximum absorption at a wavelength &lgr;max from 610 to 640 nm, and exhibiting from 30 nm hypsochromic of the wavelength of maximum absorption and below an area less than 40% based on the total area of the red light sensitive silver halide layer adsorption spectra. It further relates to a method of processing said element using an electronic filmwriter device.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: November 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Kristen D. Lockhart, Cheryl S. Johnston, Mark E. Johnson, David L. Fridd
  • Patent number: 6479225
    Abstract: A silver halide photographic element for forming a sepia image comprising a support and an image forming layer which contains a cyan dye forming coupler, a magenta dye forming coupler and a yellow dye forming coupler, wherein the support has CIELAB a* and b* values within the following ranges at L*>90:0<b*<6.0, 0<a*<1.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: November 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: David J. Valvo, Kurt M. Schroeder, Michael R. Roberts
  • Patent number: 6472134
    Abstract: A silver halide photographic element comprising at least one silver halide emulsion, said silver halide element further comprising an amido compound represented by Formula 1 wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; and R1 and R2 independently represents an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system; or R1 and R2 are independently a —C(═O)(LINK)m—INH group, or are substituted with an —NR3aC(═O)—(LINK)m—INH group, with R3a being defined the same as R1 or R2, and wherein the compound of Formula I does not substantially react with oxidized developer to release INH; and a fragmentable electron donor compound of the formula X—Y′ or a compound which contains a moiety of the formula —X—Y′;  wherein X is an electron donor
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 29, 2002
    Assignee: Eastman Kodak Company
    Inventors: Steven P. Szatynski, James H. Reynolds, Annabel A. Muenter, George J. Burgmaier
  • Patent number: 6472133
    Abstract: This invention relates to a silver halide photographic element comprising at least one silver halide emulsion layer containing a dye-forming coupler which reacts with an oxidized color developing agent to form dye, said silver halide element further comprising an amido compound of Formula I wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; and wherein INH is a development inhibitor; R1 and R2 independently represent an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system, or R1 and R2 are independently a —C(═O)(LINK)m—INH group, or are substituted with an —NR3aC(═O)—(LINK)m—INH group, with R3a being defined the same as R1 or R2, and wherein the compound of Formula I does not substantially react with oxidized developer to release INH.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 29, 2002
    Assignee: Eastman Kodak Company
    Inventors: James H. Reynolds, Steven P. Szatynski, Stephen P. Singer, George J. Burgmaier, Janet N. Younathan, Lillian M. Kellogg
  • Patent number: 6472135
    Abstract: This invention relates to a silver halide photographic element comprising at least one silver halide emulsion, said silver halide element further comprising an amido compound represented by Formula 1 wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; and R1 and R2 independently represents an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system, or R1 and R2 are independently a —C(═O)(LINK)m—INH group, or are substituted with an —NR3aC(═O)—(LINK)m—INH group, with R3a being defined the same as R1 or R2; and wherein the compound of Formula 1 does not substantially react with oxidized developer to release INH; and a reductone compound represented by Formula 2 wherein R7 and R8 are the same or different, and may represent H, alkyl, cycloalkyl, aryl, or an
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: October 29, 2002
    Assignee: Eastman Kodak Company
    Inventors: Steven P. Szatynski, James H. Reynolds, Lillian M. Kellogg, George J. Burgmaier
  • Patent number: 6444416
    Abstract: This invention relates to a silver halide photographic element comprising a support and at least one gelatin containing imaging or non-imaging layer wherein during chemical processing the maximum swell of the layer is greater than the equilibrium swell.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: September 3, 2002
    Assignee: Eastman Kodak Company
    Inventors: Tiecheng A. Qiao, Daniel L. Kapp, Yongcai Wang, Peter J. Twist
  • Patent number: 6440648
    Abstract: A method of processing an imagewise exposed color photographic film, said film having at least three light-sensitive units which have their individual sensitivities in different wavelength regions, each of the units comprising at least one light sensitive silver halide emulsion and image dye coupler, which method comprises contacting the imagewise exposed color photographic film with an aqueous solution containing a non-blocked developing agent, at a temperature of between 30 to 60° C.; and wherein said film further comprises an incorporated reducing agent, at least one organic silver salt and an amido compound wherein the reducing agent is substantially unreactive in the aqueous color development step described above, but wherein color development of the same imagewise exposed film is capable of being alternatively obtained, without any externally applied developing agent, by heating said film to a temperature above about 80° C.
    Type: Grant
    Filed: December 21, 2000
    Date of Patent: August 27, 2002
    Assignee: Eastman Kodak Company
    Inventors: David T. Southby, Xiqiang Yang, Benjamin P. Hoag
  • Patent number: 6440655
    Abstract: A silver halide photographic element comprising at least one silver halide emulsion layer containing a dye-forming coupler which reacts with an oxidized color developing agent to form dye, said silver halide element further comprising a polyester support and an amido compound of Formula I wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; R1 and R2 independently represent an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system, or R1 and R2 are independently a —C(═O)(LINK)m—INH group, or are substituted with an —NR3aC(═O)—(LINK)m—INH group, with R3a being defined the same as R1 or R2, and wherein the compound of Formula I does not substantially react with oxidized developer to release INH.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: August 27, 2002
    Assignee: Eastman Kodak Company
    Inventors: Steven P. Szatynski, James H. Reynolds, Janet N. Younathan, George J. Burgmaier
  • Patent number: 6420505
    Abstract: This invention relates to a method of preparing a thiosulfate salt containing polymer comprising reacting at least one thiosulfate salt with at least one halogenated styrenic monomer to form a styrenic thiosulfate salt monomer represented by Formula (1); wherein X is a cationic counter ion; R1 is a substituent; and R2 is a divalent linking group; and polymerizing the styrenic thiosulfate salt monomer in the presence of an initiator.
    Type: Grant
    Filed: June 20, 2001
    Date of Patent: July 16, 2002
    Assignee: Eastman Kodak Company
    Inventors: Richard W. Blevins, Shiying Zheng
  • Patent number: 6383726
    Abstract: A method for deriving a color negative film developer composition and processing conditions for developing a photographic film image which is optimized for subsequent digital scanning and digital image file manipulation, which allows for optimum rapid development processing of the film is disclosed.
    Type: Grant
    Filed: November 3, 2000
    Date of Patent: May 7, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert A. Arcus, Jeffrey L. Hall, John A. Weldy
  • Patent number: 6372421
    Abstract: This invention relates to a silver halide photothermographic imaging element comprising at least one silver halide emulsion layer, said silver halide element further comprising an amido compound of Formula I wherein INH is a development inhibitor; LINK is a linking or timing group and m is 0, 1 or 2; and R1 and R2 independently are a hydrogen atom or an aliphatic, aromatic or heterocyclic group, or R1 and R2 together with the nitrogen to which they are attached represent the atoms necessary to form a 5 or 6 membered ring or multiple ring system, or R1 and R2 are independently a —C(═O)(LINK)m-INH group, or are substituted with a —NR3C(═O)-(LINK)m-INH , with R3 being defined the same as R1 or R2, with the proviso that only one of R1 and R2 can be a hydrogen atom. It further relates to methods of image formation utilizing said element.
    Type: Grant
    Filed: June 13, 2000
    Date of Patent: April 16, 2002
    Assignee: Eastman Kodak Company
    Inventors: David T. Southby, Xiqiang Yang, Zybslaw R. Owczarczyk
  • Patent number: 6365746
    Abstract: This invention relates to an organomercapto Au(I) complex having the formula [(M—SOL)n—A—S—Au—S—A—(SOL—M)n]M wherein M is a cationic counterion; SOL is a solubilizing group: A is a substituted or unsubstituted divalent organic linking group; and n is 1 to 4 and wherein the compound is symmetrical. It further relates to a method of manufacturing an organomercapto Au(I) complex comprising reacting an Au (I) complex with an organomercapto ligand and isolating the resulting organomercapto Au(I) complex from the reaction mixture.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: April 2, 2002
    Assignee: Eastman Kodak Company
    Inventors: Roger Lok, Weimar W. White, Brian P. Cleary
  • Patent number: 6350567
    Abstract: A silver halide photographic element comprising a silver halide emulsion which is greater than 50 mole-% silver chloride, said emulsion containing an isothiazolone compound represented by the formula wherein R1 is a substituent; and Z contains the carbon atoms necessary to form a substituted or unsubstituted non-aromatic ring, wherein the isothiazolone compound was added before or during precipitation of the emulsion.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: February 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Benjamin T. Chen, Roger L. Klaus, Jeri L. Mount
  • Patent number: 6346371
    Abstract: The invention provides a photographic element comprising at least one emulsion layer comprising at least 50 mol % silver chloride, which layer comprises at least one DIR coupler in association with at least one image dye-forming coupler, characterised in that the relative reactivity ratio krel of at least one DIR coupler and an associated image coupler is less than or equal to 1.0, wherein krel=k1/k2; k1=the second order rate constant for the reaction of DIR coupler with oxidised developer and k2=the second order rate constant for the reaction of image coupler with oxidised developer. The DIR couplers when associated with image couplers such that the above condition is satisfied efficiently reduce development of silver halide emulsions containing at least 50 mol % silver chloride, there being a reduction in contrast providing a linear sensitometric curve over a good latitude with negligible speed penalty.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: February 12, 2002
    Assignee: Eastman Kodak Company
    Inventors: Andrew S. Craig, Richard P. Szajewski
  • Patent number: 6306283
    Abstract: A method of screening a water soluble gold complex for use as a sensitizer in a silver halide photographic element comprised of experimentally measuring the electrochemical potential of the gold complex and then determining if the electrochemical potential falls within a predetermined utility window.
    Type: Grant
    Filed: November 2, 1998
    Date of Patent: October 23, 2001
    Assignee: Eastman Kodak Company
    Inventors: E. Steven Brandt, Brian P. Cleary, Roger Lok, Weimar W. White