Coupler Containing Patents (Class 430/543)
  • Patent number: 6756192
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: June 29, 2004
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
  • Publication number: 20040096787
    Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye that can be derived from the dye-forming coupler: 1
    Type: Application
    Filed: October 7, 2003
    Publication date: May 20, 2004
    Applicant: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki
  • Publication number: 20040096786
    Abstract: A photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein a photographically useful compound is incorporated into at least one hydrophilic colloid layer in the form of an intercalation composition comprising a layered host material having molecules of the photographically useful compound inserted as guest molecules between the layers of the host material. The invention provide novels materials and a method of incorporating active chemistry compounds such as developers or development inhibitors directly into a photographic imaging element with improved stability and keeping response versus known methods for incorporating active chemistry compounds.
    Type: Application
    Filed: December 21, 2001
    Publication date: May 20, 2004
    Applicant: Eastman Kodak Company
    Inventors: Joseph F. Bringley, Krishnamohan Sharma, Kenneth J. Lushington
  • Patent number: 6727053
    Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye that can be derived from the dye-forming coupler: wherein Q is a group —C(—R11)═C(—R12)—SO2—; R11 and R12 bond with each other to form, together with the —C═C— moiety, a 5- to 7-membered ring, or they each represent a hydrogen atom or a substituent; R1, R3 and R4 each represent a substituent; m is an integer of 0 to 4; and X represents a hydrogen atom or a group that splits off upon a coupling reaction with an oxidized product of a developing agent; with the proviso that the following compound (I-A) is excluded from the dye-forming coupler of formula (I).
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: April 27, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima, Yasuaki Deguchi, Naoto Matsuda, Akira Ikeda, Hisashi Mikoshiba, Masaharu Sugai, Taiji Katsumata
  • Patent number: 6699651
    Abstract: Improved compounds and base precursors that undergo thermal decomposition are disclosed. Thermal-dye-bleach agents, and in particular, a novel class of salts of arylsulfonylacetic acids as bleaching agents for photothermographic use are disclosed. Photothermographic elements employing these thermal-dye-bleach agents are suitable for use as acutance and antihalation systems, bleachable filter dye materials, and in promoting unblocking of various components such as blocked developers, especially in in photothermographic elements.
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: March 2, 2004
    Assignee: Eastman Kodak Company
    Inventors: Ramanuj Goswami, David H. Levy
  • Patent number: 6696232
    Abstract: A color negative photographic film element for producing a color image suited for conversion to an electronic form and subsequent reconversion into a viewable form: said element comprising a support and, coated on the support, a plurality of hydrophilic colloid layers, including radiation-sensitive silver halide emulsion layers, forming layer units for separately recording blue, green, and red exposures, each of the layer units containing dye image-forming coupler chosen to produce image dye having an absorption half-peak bandwidth lying in a different spectral region in each layer unit, WHEREIN the element comprises a development inhibitor releasing compound in at least one layer unit, at least one of the layer units contains two or more emulsion layers differing in sensitivity, the layer units each exhibit a dye image gamma of less than 1.0, the element exhibits an exposure latitude of at least 2.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 24, 2004
    Assignee: Eastman Kodak Company
    Inventor: Allan F. Sowinski
  • Publication number: 20040033450
    Abstract: A color photographic print material which contains a cyan coupler of the formula 1
    Type: Application
    Filed: May 9, 2003
    Publication date: February 19, 2004
    Inventor: Ralf Weimann
  • Publication number: 20040023171
    Abstract: A print material having a support, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, characterised in that the red-sensitive layer contains at least one oil former, the cyan coupler is of the formula 1
    Type: Application
    Filed: July 2, 2003
    Publication date: February 5, 2004
    Applicant: Agfa-Gevaert N.V. (Belgium)
    Inventors: Ralf Weimann, Markus Geiger, Cuong Ly, Klaus Sinzger, Beate Weber, Heinz Wiesen
  • Publication number: 20040023172
    Abstract: A colour photographic print material having at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, characterised in that the cyan coupler is of the formula 1
    Type: Application
    Filed: July 2, 2003
    Publication date: February 5, 2004
    Applicant: Agfa-Gevaert
    Inventors: Ralf Weimann, Markus Geiger, Axel Jochum
  • Patent number: 6677110
    Abstract: A dye-forming coupler of formula (I): wherein Q represents a residue that forms, together with —N—C═N—, a nitrogen-containing 6-membered ring; RA represents an aryl, heterocyclic, or —(R1)r—(R4)m group; X represents an aryl group; Y represents a hydrogen atom, or a group capable of being split-off upon a coupling reaction with an oxidized product of a developing agent: wherein, when RA represents an —(R1)r—(R4)m group, R1 represents a methylene group, a methine group, or a carbon atom; r is 1 to 30; R4 represents a substituent except for a hydrogen atom; m is 1 to 30; and the —(R1)r—(R4)m group does not represent a straight-chain alkyl group. A silver halide photographic light-sensitive material which contains at least one of the coupler. An azomethine dye compound derived from the coupler.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: January 13, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki
  • Publication number: 20030228548
    Abstract: The present invention relates to a novel blocked phenylenediamine developer useful, in reactive association, for enabling, on development, a non-magenta color, for example a cyan color, from a dye-forming coupler. In one embodiment, the developer has the property that the dye color formed with the coupler is distinctly different from the color formed by the same coupler with an oxidized form of the conventional developer 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine. The invention is also directed to a light-sensitive silver-halide color photographic element comprising the blocked developing agent according to the present invention.
    Type: Application
    Filed: March 12, 2003
    Publication date: December 11, 2003
    Inventors: Richard P. Szajewski, Lyn M. Irving
  • Patent number: 6660465
    Abstract: A compound represented by the following formula (I) to (VII): In the formulas, R1 represents an acyl group, cyano group, nitro group, aryl group, heterocyclic residue, alkoxycarbonyl group, aryloxycarbonyl group, carbamoyl group, sulfamoyl group, alkylsulfonyl group, or arylsulfonyl group, which may be substituted, or a cyano or nitro group; R2 represents an alkyl group, aryl group or heterocyclic residue, which may be substituted; R3 represents an aryl group or heterocyclic residue, each of which may be substituted; R4, R6 and R9 represent a substituent; R5, R7 and R8 represent a hydrogen atom or substituent; n represents an integer of 0 to 2, wherein when n is 2, a plurality of R4's may be the same or different; L represents a divalent linking group; and k represents an integer of 0 or more, wherein when k is 2 or more, a plurality of L's may be the same or different.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: December 9, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeki Uehira, Kiyoshi Takeuchi
  • Patent number: 6656672
    Abstract: A radiation sensitive imaging element is described comprising a support bearing one or more hydrophilic colloid layers, wherein a photographically useful compound is incorporated into at least one hydrophilic colloid layer in the form of a self-assembled composition comprising a substantially homogeneous and ordered array of the photographically useful compound and silver and halide atoms, wherein the average minimum distance from each Ag atom in the composition to an atom of the photographically useful compound in the composition is less than 50 Å. In a particular embodiment, the self-assembled composition is of the general unit cell formula AgaXb(PUC*)c.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: December 2, 2003
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, Manju Rajeswaran
  • Patent number: 6649329
    Abstract: The present application relates to a photothermographic material comprising, on a side of a support, (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol derivative having the specific structure as reducing compound, (d) a binder, (e) a coupler compound, and (f) a compound represented by Q1—NHNH—V6 wherein Q1 is a 5- to 7-membered unsaturated ring and V6 is a carbamoyl group, etc.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: November 18, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toyohisa Oya, Kazunobu Katoh
  • Patent number: 6645712
    Abstract: The invention provides oil-in-water emulsions comprising recombinant collagen-like polymer in an amount sufficient to act as stabiliser of the emulsion. The polymer is especially a polypeptide which is free of helix structure, has an isoelectric point at least 0.5 pH units removed from the pH of the oil-in-water emulsion. Furthermore, amphiphilic recombinant collagen-like polymers are provided for use in oil-in-water emulsions.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: November 11, 2003
    Assignee: Fuji Photo Film B.V.
    Inventors: Joseph Hubertus Olijve, Jan Bastiaan Bouwstra, Frederik Anton De Wolf, Marc Willem Theodoor Werten, Hendrik Wouter Wisselink, Richéle Deodata Wind, Tanja Jacoba Van Den Bosch, Yuzo Toda
  • Patent number: 6645704
    Abstract: The present invention is related to a method of making a color photothermographic element such as a capture film intended to be developed to yield an image by the application of heat, preferably without the addition of processing solutions. In particular, this invention relates to the annealing of a photothermographic imaging element prior to storage and use. It has been found that the use of such an annealing process improves raw stock storage and hence, the performance of color photothermographic systems.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: November 11, 2003
    Assignee: Eastman Kodak Company
    Inventor: David H. Levy
  • Patent number: 6641988
    Abstract: A photographic element is disclosed, comprising a yellow dye forming coupler, a magenta dye forming coupler and a cyan dye forming coupler, wherein spectral reflection absorption characteristics of a yellow dye, a magenta dye and a cyan dye which are formed of the yellow dye forming coupler, the magenta dye forming coupler and the cyan dye forming coupler, respectively, meet the following requirements: 110≧&lgr;max(M)−&lgr;max(Y)≧95, 80≧&lgr;max(C)−&lgr;max(M)≧70, 0.43≧Abs600(M)≧0.38, and 0.48≧Abs550(C)≧0.35.
    Type: Grant
    Filed: January 31, 2002
    Date of Patent: November 4, 2003
    Assignee: Konica Corporation
    Inventor: Takeshi Hakii
  • Publication number: 20030204094
    Abstract: A color-developing agent of the formula (1-1): 1
    Type: Application
    Filed: February 6, 2003
    Publication date: October 30, 2003
    Applicant: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Uchida, Yasuhiro Ishiwata, Takayuki Ito, Nobutaka Fukagawa
  • Patent number: 6638701
    Abstract: Disclosed is a photographic element comprising a a light sensitive silver halide emulsion layer having associated therewith a pyrazolotriazole dye forming coupler having formula I in which is and L1 is linked to the C atom; L1 is a carbon atom of the triazole ring, substituted by one or two alkyl or aryl groups; L2 is a chain of one or two carbon atoms that may be further substituted by alkyl or aryl groups; R1 is selected from the group consisting of alkyl groups containing 1-3 carbon atoms; R2 is selected from the group consisting of hydrogen, alkyl and aryl groups; R3 is a substituted carbonyl, carbamoyl, sulfonyl, or sulfamoyl group; and X is H or a coupling-off group. Such an element provides a red dye forming coupler of improved stability.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: October 28, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mbiya Kapiamba, David G. Lincoln, James L. Edwards, Gary M. Russo, Gregg P. Bryant
  • Patent number: 6620562
    Abstract: The present invention is directed to a method of scanning silver-halide-containing color photographic and photothermographic film. In particular, the present invention comprises a photographic element comprising at least one infrared imaging dye-forming agent in a blue-sensitive color layer of the element, thereby forming at least one image record in the infrared region of the imagewise exposed and developed element. This expedient leads to the formation of high quality images when scanning photographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: September 16, 2003
    Assignee: Eastman Kodak Company
    Inventors: James H. Reynolds, David H. Levy, Robert W. Kulpinski, Leif P. Olson, Wojciech K. Slusarek
  • Publication number: 20030148233
    Abstract: A radiation sensitive imaging element is described comprising a support bearing one or more hydrophilic colloid layers, wherein a photographically useful compound is incorporated into at least one hydrophilic colloid layer in the form of a self-assembled composition comprising a substantially homogeneous and ordered array of the photographically useful compound and silver and halide atoms, wherein the average minimum distance from each Ag atom in the composition to an atom of the photographically useful compound in the composition is less than 50 Å.
    Type: Application
    Filed: December 21, 2001
    Publication date: August 7, 2003
    Applicant: Eastman Kodak Company
    Inventors: Joseph F. Bringley, Manju Rajeswaran
  • Patent number: 6599689
    Abstract: A silver halide color negative photographic lightsensitive material comprises, on a support, at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer. The total coating amount of colored couplers in the lightsensitive material is less than 0.05 mMol/m2. The lightsensitive material contains at least one spectrally sensitized silver halide emulsion and a compound capable of absorbing light within the spectrally sensitizing region of the spectrally sensitized silver halide emulsion, and capable of reducing the sensitivity of the spectrally sensitized silver halide emulsion by at least 0.05 LogE.
    Type: Grant
    Filed: April 17, 2002
    Date of Patent: July 29, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Tamaoki, Yasushi Nozawa, Keisuke Matsumoto
  • Patent number: 6596470
    Abstract: A heat-developable light-sensitive material, which at least contains: (a) a photosensitive silver halide; (b) a reducible silver salt; (c) a dispersion of fine crystalline particles of a color-developing agent; (d) a dispersion of fine crystalline particles of a coupler capable of reacting with an oxidized product of the color-developing agent, to form a dye; (e) a dispersion of fine crystalline particles of a thermal solvent; and (f) a binder, each of which is contained on the same side of a support. An image-forming method, which utilizes the heat-developable light-sensitive material.
    Type: Grant
    Filed: November 27, 2001
    Date of Patent: July 22, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuhiko Matsumoto, Toshio Kawagishi
  • Patent number: 6593069
    Abstract: A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder and (e) a coupler compound on the same side of a support: wherein, in the formula (1), V1 to V4 each independently represent hydrogen atom or a substituent, and V5 represents a substituted or unsubstituted alkyl group, aryl group or heterocyclic group: Q1—NHNH—V6  (2) wherein, in the formula (2), Q1 represents a 5- to 7-membered unsaturated ring bonding to NHNH—V6 at a carbon atom, and V6 represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group.
    Type: Grant
    Filed: March 16, 2001
    Date of Patent: July 15, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toyohisa Oya, Kazunobu Katoh, Shigeo Hirano
  • Patent number: 6586167
    Abstract: A method for thermally forming images for plate making, which comprises forming an image for plate making by using a thermally processed image recording material comprising a silver salt of an organic acid, a reducing agent, a color image forming material and an organic binder on a support, wherein the image consists essentially of a developed silver image and a color forming dye image and the color forming dye image shows an absorbance for ultraviolet region higher than that for visible region and has a transmission density of 0.3 or more for the region of 360-450 nm. There are provided a thermally processed image recording material and method for thermally forming images that provide significant difference of ultraviolet absorption between image areas and non-image areas suitable for printing plate making.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: July 1, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Toyohisa Oya
  • Publication number: 20030109716
    Abstract: Disclosed is a 2-amino-5-acylamino-4-substituted-phenol compound having the structural formula I: 1
    Type: Application
    Filed: December 3, 2001
    Publication date: June 12, 2003
    Applicant: Eastman Kodak Company
    Inventor: Chang-Kyu Kim
  • Publication number: 20030109753
    Abstract: Disclosed is a 4-acylamino-2-hydroxy-5-substituted-acylanilide compound having the structural formula I: 1
    Type: Application
    Filed: December 3, 2001
    Publication date: June 12, 2003
    Applicant: Eastman Kodak Company
    Inventor: Chang-Ku Kim
  • Patent number: 6576411
    Abstract: The invention is directed to a color photothermographic film in which particles comprising an organic silver salt is treated with a dye that functions as a passivating agent. In particular, the present invention involves passivating the organic silver salts with a dye that blocks the surface of the organic silver salt or ligand, resulting in a reduction of speed loss. The invention is also directed to a method of making a photothermographic element to improve raw stock keeping.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: June 10, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, Gregg P. Bryant, JoAnn D. Hanna, Mark R. Mis, Nancy B. Liebert
  • Patent number: 6576414
    Abstract: The present invention is directed to a photothermographic element comprising silver halide, a blocked developer, a coupler, and core/shell particles, each such particle comprising a mixture of at least two non-photosensitive organic silver salts, which particle comprises a center portion comprising a non-photosensitive first organic silver salt and at least one shell portion covering the center portion, the shell comprising a non-photosensitive second organic silver salt. The organic silver salt in the shell has a lower pKsp relative to the organic silver salt in the core. This invention also provides a composition comprising the core/shell non-photosensitive organic silver salt particles, and a method of making the particles.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: June 10, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, David H. Levy, Bernard D. Stich, Mark R. Mis, Stephen Swingley, Donald L. Black
  • Publication number: 20030104323
    Abstract: A silver halide color negative photographic lightsensitive material comprises, on a support, at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer. The total coating amount of colored couplers in the lightsensitive material is less than 0.05 mMol/m2. The lightsensitive material contains at least one spectrally sensitized silver halide emulsion and a compound capable of absorbing light within the spectrally sensitizing region of the spectrally sensitized silver halide emulsion, and capable of reducing the sensitivity of the spectrally sensitized silver halide emulsion by at least 0.05 LogE.
    Type: Application
    Filed: April 17, 2002
    Publication date: June 5, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hiroshi Tamaoki, Yasushi Nozawa, Keisuke Matsumoto
  • Patent number: 6569612
    Abstract: A color photographic element is disclosed comprising at least three light-sensitive units which have their individual sensitivities in different wavelength regions, comprising at least one imaging layer comprising a light-sensitive silver-halide emulsion, binder, and a yellow coupler represented by the following structure: Wherein COUP is a photographic coupler residue capable of coupling with oxidized color developer to form a first yellow dye L is a linking group selected from the group consisting of —OC(═O)—, —OC(═S)—, —SC(═O)—, and —SC(═S)—, and —DYE is a releasable second yellow dye or yellow dye precursor, wherein COUP is an acetanilide compound that contains one or more electron-withdrawing groups such that the pKa at the coupling site is less than 8.7. Such yellow couplers improve activity and enhance dye densities.
    Type: Grant
    Filed: August 30, 2001
    Date of Patent: May 27, 2003
    Assignee: Eastman Kodak Company
    Inventors: Lelia Cosimbescu, Jared B. Mooberry, David T. Southby, Louis E. Friedrich
  • Publication number: 20030091946
    Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye compound derived from the coupler: 1
    Type: Application
    Filed: April 19, 2002
    Publication date: May 15, 2003
    Inventors: Shigeki Uehira, Kiyoshi Takeuchi
  • Patent number: 6562556
    Abstract: A silver halide color photographic light-sensitive material, which has at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and at least one red-sensitive silver halide emulsion layer containing a cyan coupler, provided on a support, wherein at least one layer of said light-sensitive silver halide emulsion layers contains a silver halide emulsion comprising silver halide grains having a silver chloride content of 95 mol % or more, and wherein, with respect to each of characteristic curves obtained by a color development of said light-sensitive material after exposure, a specific relationship as defined by the density and the exposure amount is satisfied.
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: May 13, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Akito Yokozawa
  • Patent number: 6555306
    Abstract: Photographic elements are disclosed comprising a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I: wherein n=0-6 and each R is independently hydrogen, an aromatic, cyclic, linear or branched chain hydrocarbon group, NR′R″, or OR′; where R′ is an aromatic, cyclic, linear or branched chain hydrocarbon group and R″ is hydrogen or an aromatic, cyclic, linear or branched chain hydrocarbon group. Photographic elements of the present invention upon exposure and photographic processing exhibit good activity and yield dye images that have unexpected and substantial improvements in the stability of the formed image dyes.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 29, 2003
    Assignee: Eastman Kodak Company
    Inventors: J. Ramon Vargas, Gary M. Russo
  • Patent number: 6555305
    Abstract: A photographic element is disclosed comprising a silver halide emulsion layer including a spectrally sensitized tabular grain emulsion and having associated therewith a compound of the following Formula I: wherein n=0-6 and each R is independently hydrogen, an aromatic, cyclic, linear or branched chain hydrocarbon group, NR′R″, or OR′; where R′ is an aromatic, cyclic, linear or branched chain hydrocarbon group and R″ is hydrogen or an aromatic, cyclic, linear or branched chain hydrocarbon group. The use of dipiperidinediamide, dipiperidinedicarbamate or dipiperidinediurea compounds of Formula I in photographic elements comprising spectrally sensitized tabular grain silver halide emulsions exhibit reduced sensitizing dye stain after photographic processing.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: April 29, 2003
    Assignee: Eastman Kodak Company
    Inventors: J. Ramon Vargas, Margaret D. Steele
  • Patent number: 6551771
    Abstract: A multicolor negative image capture film element comprises multiple silver halide emulsion layers that together exhibit a more gradually sloped density to exposure relationship than is customary while providing a combination of improved latitude and desirable overexposure printing density reduction.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: April 22, 2003
    Inventors: John F. Sawyer, Sharon R. Lunt
  • Patent number: 6548234
    Abstract: The invention provides a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, UV absorber and (A) a stabilizer of formula (I) wherein R1 is an unsubstituted or substituted alkyl or aryl group or a 5- to 10- membered heterocyclic ring which contains one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; Z is a hydrogen atom or a substituent group; X is a group selected from —SO2—, —SO—, —COO—,—CO— and —CS—, W is one or more unsubstituted or independently substituted alkylene groups connecting the nitrogen atom to X, and p is 0 or 1; R2 is a substituent group; or the groups represented by Z and R2 can be joined to form a ring which may be substituted; and (B) a high-boiling solvent of formula (II) wherein R3 is an unsubstituted or substituted alkyl or
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: April 15, 2003
    Assignee: Eastman Kodak Company
    Inventor: Danuta Gibson
  • Patent number: 6548238
    Abstract: The stability of the dyes which are obtained after processing a color photographic material is improved by the addition of a polyvinylcaprolactam.
    Type: Grant
    Filed: July 20, 2001
    Date of Patent: April 15, 2003
    Assignee: AGFA-Gevaert
    Inventors: Beate Weber, Bernd Spachmann, Heinz Wiesen
  • Patent number: 6548236
    Abstract: The present invention is directed to a photothermographic element comprising silver halide, a blocked developer, a coupler, and core/shell particles, each such particle comprising a mixture of at least two non-photosensitive organic silver salts, which particle comprises a center portion comprising a non-photosensitive first organic silver salt and at least one shell portion covering the center portion, the shell comprising a non-photosensitive second organic silver salt. The organic silver salt in the shell has a higher pKsp relative to the organic silver salt in the core. This invention also provides a composition comprising core/shell non-photosensitive organic silver salt particles, and a method of making the particles.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 15, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, David H. Levy, JoAnn D. Hanna, Stephen Swingley, Donald L. Black, Stephen C. Stoker
  • Publication number: 20030068568
    Abstract: The present invention is directed to a method of scanning silver-halide-containing color photographic and photothermographic film. In particular, the present invention comprises a photographic element comprising at least one infrared imaging dye-forming agent in a blue-sensitive color layer of the element, thereby forming at least one image record in the infrared region of the imagewise exposed and developed element. This expedient leads to the formation of high quality images when scanning photographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed.
    Type: Application
    Filed: August 13, 2001
    Publication date: April 10, 2003
    Inventors: James H. Reynolds, David H. Levy, Robert W. Kulpinski, Leif P. Olson, Wojciech K. Slusarek
  • Patent number: 6544724
    Abstract: A coupler represented by the following formula (I), and a silver halide color photographic light-sensitive material containing the coupler: wherein R represents an alkyl, alkenyl, alkynyl, aryl or heterocyclic group; L is —CO— or —SO2—; and X is a hydrogen atom or a group capable of being split-off upon coupling with an oxidized product of a developing agent.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: April 8, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Satoh, Takeshi Nakamine, Nobuo Seto, Hiroyuki Yoneyama, Yasuhiro Shimada
  • Patent number: 6534252
    Abstract: A light sensitive silver halide color photographic element having a common chromogenic coupler and a distinct developer associated with each color forming layer unit is disclosed. In a first embodiment, the light sensitive silver halide color photographic element has a red light sensitive silver halide layer unit and a first blocked coupling developer, a green light sensitive silver halide layer unit and a second blocked coupling developer and a blue light sensitive silver halide layer unit having a third blocked coupling developer and wherein each layer unit has the same chromogenic coupler. In a second embodiment, the light sensitive silver halide color photographic element has a red light sensitive silver halide layer unit and a first blocked coupling developer, a green light sensitive silver halide layer unit and a second blocked coupling developer and a blue light sensitive silver halide layer unit having a third blocked coupling developer.
    Type: Grant
    Filed: May 31, 2001
    Date of Patent: March 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Lyn M. Irving
  • Patent number: 6531273
    Abstract: This invention involves dispersions comprising ionic liquids and a non-ionic surfactant, optionally further comprising a photographically useful compound such as a dye-forming coupler. Such dispersions form coatings that are relatively free of physical defects, and show reduced problems such as crystallization of components like the couplers or ion pairs.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: March 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Leif P. Olson, John W. Boettcher, James H. Reynolds
  • Patent number: 6531270
    Abstract: This invention involves the use of ionic liquids as coupler solvents in a color or monochrome photothermographic system. The presence of an ionic liquid can increase the amount of density or dye formed. The ionic liquid may be combined with other coupler solvents.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: March 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Leif P. Olson, James H. Reynolds
  • Patent number: 6528243
    Abstract: A silver halide color photographic light-sensitive material has a support provided thereon a photographic constitutional layer including at least one photographic light-sensitive layer that contains a light-sensitive silver halide, an organosilver salt having a nitrogen-containing heterocycle, a compound capable of forming a dye by coupling reaction with an oxidized developing agent, and a binder, wherein the light-sensitive layer contains: (A) as the silver halide, a silver halide emulsion composed of tabular silver halide grains having a main face made up of a (111) plane, an average diameter of an equivalent circle of at least 0.70 &mgr;m, and an average thickness of less than 0.20 &mgr;m; and (B) as the organosilver salt, a compound in which a hydrogen on a 5- or 6-membered nitrogen-containing heterocycle having at least one —NH— group is replaced with Ag.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: March 4, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tomoyuki Koide, Toshio Kawagishi
  • Patent number: 6528241
    Abstract: A light-sensitive silver-halide color photographic element comprising a multifunctional coupler enabling formation of an infrared dye on development, wherein the multifunctional coupler has the property that it is capable of forming a distinctly colored cyan dye with an oxidized form of the developer 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: March 4, 2003
    Assignee: Eastman Kodak Company
    Inventor: Richard P. Szajewski
  • Patent number: 6521397
    Abstract: Disclosed is a photographic element comprising a support bearing a light sensitive silver halide emulsion layer having associated therewith a dye forming coupler having a formula I, wherein: Ballast is a group containing at least 6 aliphatic carbon atoms, V represents a chain of three or four atoms, which may be substituted, selected from C, N, O and S sufficient to form an aromatic ring fused to the azole ring and n is 0 or 1, provided that if n is 0, Y and Ballast are directly attached to the 5-membered azole ring, W is an electron withdrawing group selected from the group consisting of —CN, —CONR1R2, —CO2R1, —NO2, and —SO2R1 where R1 and R2 are H or substituents; X is H or a coupling-off group; Y is H or a substituent; Z is an atom or group selected from >N—R, —O—, and —S—.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: February 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mbiya Kapiamba, Donald R. Diehl, James L. Edwards, David G. Lincoln, Gary M. Russo
  • Patent number: 6514679
    Abstract: Disclosed is a photographic element comprising a silver halide emulsion and a peptoid-containing azole dye-forming coupler.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: February 4, 2003
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Robert J. Niger, Richard P. Dunlap, William J. Sonnefeld, Hans F. Schmitthenner
  • Patent number: 6513212
    Abstract: A color photographic element comprising at least three light-sensitive units which have their individual sensitivities in different wavelength regions, at least one of units comprising a light-sensitive silver-halide emulsion, binder, and a coupler represented by formula I: COUP—(T)m—L—DYE′  (I) wherein COUP is a coupler parent group capable of reacting with an oxidized developer to form a first cyan dye and is bonded at a coupling position to a releasable group that forms a second dye of the same hue, as described in the specification.
    Type: Grant
    Filed: December 19, 2001
    Date of Patent: February 4, 2003
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, Wojciech K. Slusarek, David T. Southby, David H. Levy, Xiqiang Yang
  • Patent number: 6511796
    Abstract: The invention provides a multilayer silver halide color photographic element comprising a support having coated thereon at least two red-sensitive silver halide emulsion layers having different sensitivity to red light, characterized in that the most sensitive of said red-sensitive silver halide emulsion layers comprises a core-shell silver bromoiodide tabular emulsion having a pure bromide core, a total silver iodide content lower than 10% and an aspect ratio higher than 4.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: January 28, 2003
    Assignee: Ferrania S.p.A.
    Inventors: Giuseppe Rocca, Antonio Poggi, Simona Fava