Precursor Compound Patents (Class 430/955)
  • 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
  • Patent number: 6506528
    Abstract: This invention relates to a photothermographic color element containing a mixture of blocked developers in the same emulsion layer, which blocked developers having different onset temperatures. Such a mixture has been found to allow for lower film processing temperatures and/or shorter times of development with respect to the blocked developer having a higher onset temperature. Conversely, improved discrimination can be obtained with respect to the blocked developer having the lower onset temperature.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: January 14, 2003
    Assignee: Eastman Kodak Company
    Inventors: Zbyslaw R. Owczarczyk, David T. Southby, Xiqiang Yang
  • Patent number: 6506546
    Abstract: This invention comprises an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein PUG is a photographically useful group; LINK 1 and LINK 2 are linking groups; TIME is a timing group; T represents t independently selected substituted or unsubstituted alkyl or aryl groups, t is 0, 1, or 2 and if t is 2, the T groups can form a ring; HET is a heterocyclic group which optionally can form a ring with a T group; R12 is hydrogen, substituted or unsubstituted alkyl or substituted or unsubstituted aryl, or R12 can form a ring with a T group or with HET; 1 is 0 or 1; m is 0, 1, or 2; and n is 0 or 1.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: January 14, 2003
    Assignee: Eastman Kodak Company
    Inventors: Zbyslaw R. Owozarczyk, Xiqiang Yang, David T. Southby
  • Patent number: 6500590
    Abstract: The present invention is directed to a method of processing color photographic film that has been imagewise exposed in a camera, 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, binder, and dye-providing coupler, which method in order comprises: (a) thermally developing the film step without any externally applied developing agent, comprising heating said film to a temperature greater than 80° C.
    Type: Grant
    Filed: May 23, 2001
    Date of Patent: December 31, 2002
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, David T. Southby
  • Patent number: 6495299
    Abstract: This invention relates to packaged photographic film that is capable of being alternately processed, according to individual consumer choice, by either (1) a traditional wet-chemistry process with a developer solution followed by desilvering in one or more subsequent solutions to obtain a color negative film, or (2) a dry thermal process without the use of aqueous solutions in which a blocked developing agent located within the photographic element is thermally activated or unblocked, optionally followed by electronic scanning of the developed film without desilvering. This invention enables a single film stock to be developed in both a conventional deep tank process and in a dry thermal process.
    Type: Grant
    Filed: May 25, 2001
    Date of Patent: December 17, 2002
    Assignee: Eastman Kodak Company
    Inventors: David H. Levy, James H. Reynolds, David T. Southby, Paul D. Zimmerman, Mark E. Irving
  • Publication number: 20020172900
    Abstract: A color photographic silver halide material having a support, which material comprises at last one blue-sensitive, yellow-coupling silver halide emulsion layer and at least one geen-sensitive, magenta-coupling silver halide emulsion layer and at least one red-sensitive, cyan-coupling silver halide emulsion layer, and which contains at least one masking coupler which has two chromophores which absorb in the wavelength range from 420 to 750 nm and are eliminable or decolorisable by coupling with the developer oxidation product, is distinguished by improved sensitivity associated with undiminished color purity.
    Type: Application
    Filed: January 10, 2002
    Publication date: November 21, 2002
    Inventors: Jan Haller, Ralf Wirowski
  • Patent number: 6482582
    Abstract: Disclosed in an image recording material comprising, on a support, a photosensitive silver halide, a reducing agent, a binder and a compound represented by the following Formula (1): wherein, in Formula (1), R1 and R2 each independently represent a substituent, R1 and R2 may be bonded to each other to form a ring, X represents a halogen atom, L represents a methylene group, m represents an integer of 0-7, Y represents a divalent bridging group, n represents 0 or 1 and Z represents a residue derived from a photographically useful compound. This image recording material exhibits high sensitivity, low fog and good storage stability, and is stable against fluctuation of development conditions.
    Type: Grant
    Filed: July 24, 2001
    Date of Patent: November 19, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuyuki Watanabe, Masaru Takasaki
  • Patent number: 6472111
    Abstract: This invention relates to a photothermographic color element containing a mixture of blocked developers in the same emulsion layers. By having different blocked developers or mixtures of at least two blocked developers in different color layers, it is possible to manipulate the image discrimination (at the processing temperature) in each layer and to balance the density formation or color in the different color layers. Different mixtures of blocked developers can be used in different imaging layers, to balance the Gamma, the Dmin and the Latitude in different imaging layers or color units.
    Type: Grant
    Filed: November 20, 2000
    Date of Patent: October 29, 2002
    Assignee: Eastmank Kodak Company
    Inventors: James H. Reynolds, David H. Levy, David T. Southby
  • Patent number: 6458521
    Abstract: The invention provides a color photographic element that contains a coupler useful for forming a neutral silver-based image. Such couplers are particularly useful to provide an auxiliary silver-based image for optically recording a sound track in color motion picture films.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: October 1, 2002
    Assignee: Eastman Kodak Company
    Inventors: Philip T. Lau, Stephen P. Singer, Janet N. Younathan, Jerrold N. Poslusny, Susan D. Hill, Anabisdally I. Bodden
  • Publication number: 20020132175
    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 record shifting by means by employing at least one infrared dye in a color unit of the film, thereby forming at least one image record in the infrared. This expedient leads to the formation of high quality images, especially when scanning photothermographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed.
    Type: Application
    Filed: March 6, 2002
    Publication date: September 19, 2002
    Applicant: Eastman Kodak Company
    Inventor: Richard P. Szajewski
  • Patent number: 6440618
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: In the above Structure I, the substituents are as defined in the application, wherein B is a six-membered heteroaromatic ring. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: August 27, 2002
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, David H. Levy
  • Patent number: 6428947
    Abstract: This invention comprises multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said red-sensitive or green-sensitive layers comprises a fragmentable electron donating compound of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein the speed gain deriving from addition of said compound to said layer is less than or equal to 0.
    Type: Grant
    Filed: January 5, 2001
    Date of Patent: August 6, 2002
    Assignee: Eastman Kodak Company
    Inventors: Sharon G. Johnston, Annabel A. Muenter, Steven P. Szatynski, Jerome R. Lenhard
  • Patent number: 6426179
    Abstract: This invention relates to an imaging element, such as a photographic or photothermographic element comprising a silver halide emulsion layer, wherein the element also comprises a compound of Structure I: wherein the substituents are as defined in the specification.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: July 30, 2002
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy
  • Patent number: 6426180
    Abstract: Disclosed is a color silver halide photographic element comprising a support bearing: (1) a light sensitive silver halide emulsion layer; (2) a nitrogen heterocycle with a minimum of three heteroatoms that does not react with oxidized developer, does not contain free thiol substituents, and has a C log P sufficient to increase the photographic speed of said element compared to the same element without the compound, said heterocycle compound located either in said light sensitive layer or in a layer adjacent to it; and (3) an ETARC, in or adjacent to said light sensitive silver halide emulsion layer, that releases, upon reaction with oxidized developer, an electron transfer agent having a C log P of at least 2.40. The invention provides improved light sensitivity.
    Type: Grant
    Filed: October 17, 2000
    Date of Patent: July 30, 2002
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, James A. Friday, Stephen P. Singer, Marcello Vitale
  • Patent number: 6416943
    Abstract: The invention provides a color photographic element suitable for forming both a colored dye image and a neutral silver-based image, comprising a support bearing at least one light-sensitive silver halide emulsion layer containing a coupler capable of forming a colored dye upon development, and bearing a further light-sensitive silver halide emulsion layer containing a coupler which is capable of releasing a thiovinyl group upon development that is capable of reacting to form a neutral silver-based image.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: July 9, 2002
    Assignee: Eastman Kodak Company
    Inventors: Robert F. Romanet, Susan D. Hill, Stephen P. Singer, Anabisdally I. Bodden
  • Patent number: 6403293
    Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layers, wherein at least one of the silver halide emulsion layers contains a coupler represented by the following formula:
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: June 11, 2002
    Assignee: Konica Corporation
    Inventors: Osamu Ishige, Emiko Kataoka, Hiroyuki Hoshino
  • Patent number: 6391516
    Abstract: The present invention discloses an imaging element comprising on a hydrophilic surface of a lithographic base an image forming layer comprising hydrophobic thermoplastic polymer particles dispersed in a hydrophilic binder and (ii) a compound capable of converting light to heat, said compound being comprised in said image forming layer or a layer adjacent thereto, characterised in that said image forming layer further comprises a cross-linking agent capable of cross-linking said hydrophilic binder upon heating in a ratio between 1:100 and 200:1 by weight versus the hydrophilic binder. The present invention further provides a method for making a printing plate therewith. According to this method, the above imaging element is preferably exposed by means of a laser and is subsequently developed with plain water or an aqueous liquid.
    Type: Grant
    Filed: November 8, 1996
    Date of Patent: May 21, 2002
    Assignee: Agfa-Gevaert
    Inventors: Joan Vermeersch, Marc Van Damme
  • Patent number: 6379880
    Abstract: A heat-developable photosensitive material having: (a) at least one layer of photosensitive image-forming layer containing an organic silver salt, a photosensitive silver halide, a reducing agent and an organic binder; and (b) a functional layer containing a binder and a solid dispersion; the binder consisting of a water-dispersed thermoplastic resin, and the solid dispersion being made of a precursor of a photographically useful compound capable of releasing the photographically useful compound when heated to 100° C. or higher and not higher than heat development temperature is disclosed.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: April 30, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazunobu Katoh
  • Patent number: 6379879
    Abstract: A color photographic recording material having at least one spectrally sensitized silver halide emulsion layer, characterized in that said silver halide emulsion layer contains an oil former having a pKa value of less than 18 and a DIR coupler and the material contains at least one color coupler, wherein the color coupler and/or the DIR coupler have specific structures, is distinguished by an increased interimage effect in comparison with the prior art without sensitivity being reduced.
    Type: Grant
    Filed: February 26, 2001
    Date of Patent: April 30, 2002
    Assignee: Agfa-Gevaert
    Inventors: Jörg Hagemann, Günter Helling, Heinz Wiesen, Ralf Wirowski, Ralf Büscher
  • Patent number: 6350566
    Abstract: This invention relates to packaged photographic film that is capable of being alternately processed, according to individual consumer choice, by either (1) a traditional wet-chemistry process with a phenylenediamine-containing developer solution followed by desilvering in one or more subsequent solutions to obtain a color negative film, or (2) a thermal process involving the use of a relatively minor amount of an aqueous solution containing a liberating agent such as alkaline base to activate (unblock) a blocked phenylenediamine developing agent located within the photographic element, followed by electronic scanning of the developed film without desilvering. This invention enables a single film stock to be developed in both a conventional deep tank process and in an apparently dry process.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: February 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, Richard P. Szajewski, Lyn M. Irving
  • Publication number: 20020019571
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: 1
    Type: Application
    Filed: July 13, 2001
    Publication date: February 14, 2002
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, David H. Levy
  • Patent number: 6319640
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: In the above Structure I, the substituents are as defined in the application. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: November 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, David H. Levy
  • Patent number: 6309811
    Abstract: Disclosed is a color photographic element comprising: a) a first light sensitive silver halide emulsion layer containing a compound with an aromatic bicyclic nitrogen nucleus of which at least one ring is six-membered and with two nitrogen ring atoms in each ring and with at least one N—H bond provided that the ClogP for the compound is at least 2.0 and less than 7.2; and (b) a second light sensitive silver halide emulsion layer, having a spectral sensitivity different from that of the first light sensitive silver halide emulsion layer, containing a compound of Formula III: COUP-(TIME)j-INH  III  wherein: COUP is a coupler parent group capable of forming a dye upon reaction with an oxidized developer; TIME is a timing group and j is 0,1 or 2; and INH is a mild silver development inhibitor fragment. The invention provides improved color reproduction.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: October 30, 2001
    Assignee: Eastman Kodak Company
    Inventors: Philip A. Allway, Louis E. Friedrich, Stephen P. Singer
  • Patent number: 6306551
    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 specification.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: October 23, 2001
    Assignee: Eastman Kodak Company
    Inventors: Zbyslaw R. Owczarczyk, Xiqiang Yang, David H. Levy, Mark E. Irving
  • Patent number: 6303269
    Abstract: A dye precursor represented by the following formula (I): wherein A1 and A2 each represents an atomic group to form a coupler residue together with —N(R5)R6 and the carbon atom to which A1 and A2 are bonded; R1 represents a substituent; n represents an integer of from 0 to 4; R2 represents a hydroxyl group or a group represented by —N(R7)R8; R7 and R8 each independently represents a hydrogen atom or a substituent; R3 and R4 each independently represents a hydrogen atom or an alkyl group; and R5 and R6 each independently represents a substituent.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: October 16, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kensuke Morita, Koki Nakamura, Shun-ichi Ishikawa
  • Patent number: 6300053
    Abstract: A photothermographic element has on a support a photo-sensitive layer, and a first non-photosensitive layer containing (1) a base-bleachable dye or a salt thereof and (2) a binder. The first non-photosensitive layer or a second non-photosensitive layer disposed adjacent thereto contains (3) a base precursor and (4) a melting point depressant. The dye (1) becomes more bleachable and the processed image becomes more water resistant.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: October 9, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Itsuo Fujiwara, Ichizo Toya, Masaki Noro
  • Publication number: 20010024771
    Abstract: This invention relates to packaged photographic film that is capable of being alternately processed, according to individual consumer choice, by either (1) a traditional wet-chemistry process with a phenylenediamine-containing developer solution followed by desilvering in one or more subsequent solutions to obtain a color negative film, or (2) a thermal process involving the use of a relatively minor amount of an aqueous solution containing a liberating agent such as alkaline base to activate (unblock) a blocked phenylenediamine developing agent located within the photographic element, followed by electronic scanning of the developed film without desilvering. This invention enables a single film stock to be developed in both a conventional deep tank process and in an apparently dry process.
    Type: Application
    Filed: January 11, 2001
    Publication date: September 27, 2001
    Inventors: Mark E. Irving, Richard P. Szajewski, Lyn M. Irving
  • Patent number: 6280919
    Abstract: The invention provides a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a coupler based on a 1-aryl-3-arylpyrazol-5-one ring and represented by formula I: wherein the substituents are as described in the specification.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: August 28, 2001
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Jerrold N. Poslusny, Zheng Z. Wu
  • Publication number: 20010010895
    Abstract: Disclosed is a color photographic element comprising:
    Type: Application
    Filed: July 21, 1999
    Publication date: August 2, 2001
    Inventors: PHILIP A. ALLWAY, LOUIS E. FRIEDRICH, STEPHEN P. SINGER
  • Patent number: 6261750
    Abstract: A silver halide color light-sensitive material contains at least one light-sensitive silver halide emulsion layer and at least one non-light-sensitive layer on a support, wherein at least one of the non-light-sensitive layers contains a silver halide emulsion having a previously fogged surface, and the non-light-sensitive layer containing the previously fogged emulsion and/or its adjacent layer contains a compound capable of releasing a photographically useful group or its precursor by a coupling reaction with the oxidized form of a developing agent, wherein the previously fogged emulsion is developed during color development to evenly form the oxidized form of a color developing agent, and the photographically useful group or its precursor is released non-imagewise by the coupling reaction.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 17, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Ishii, Takayuki Ito, Fumitaka Ueda, Hiroyuki Yoneyama
  • Patent number: 6245497
    Abstract: A photographic element comprises a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises a) an emulsion with 3D, core/shell grains of at least 0.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: June 12, 2001
    Assignee: Eastman Kodak Company
    Inventors: Jon N. Eikenberry, David T. Southby
  • Patent number: 6242170
    Abstract: This invention provides a multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises large tabular grains having an average equivalent circular diameter of greater than 3 &mgr;m and contains a one equivalent image dye-forming coupler and a fragmentable electron donating compound of the formula: X—Y′ or a compound which contains a moiety of the formula —X—Y′; wherein X is an electron donor moiety, Y′ is a leaving proton H
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: June 5, 2001
    Assignee: Eastman Kodak Company
    Inventors: Joseph P. Pepe, Jeffrey C. Hansen, James A. Friday, Annabel A. Muenter, David T. Southby
  • Patent number: 6238855
    Abstract: A photographic element comprising a support bearing one or more silver halide emulsions at least one of which comprises at least 50% silver chloride in association with one or more image dye-forming couplers and one or more DI(A)R couplers of formulae I or II: wherein: TIME is a timing group and R1, R2, Z, n, and j are as defined in the specification, wherein the DI(A)R coupler(s) in association with an emulsion comprising at least 50% silver chloride comprise at least about 25% to about 90% of the total amount of coupler in association with that emulsion and the total amount of coupler is the sum of the number of moles of image coupler(s) and the number of moles of the DI(A)R couplers in association with that emulsion.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: May 29, 2001
    Assignee: Eastman Kodak Company
    Inventors: Philip A. Allway, Christina M. Watts, Paul L. Stanley
  • Patent number: 6228572
    Abstract: The invention provides a color photographic element comprising: a) a first light sensitive silver halide emulsion layer containing a compound of Formula 1:  wherein: M is hydrogen, an alkali metal cation or an ammonium cation, X is oxygen, sulfur or selenium, and Q represents a ballasting moiety; provided further that the ClogP for the compound of Formula I is at least 1.0 and less than 7.6; and b) a second light sensitive silver halide emulsion layer, having a spectral sensitivity different from that of the first light sensitive silver halide emulsion layer, containing a compound of Formula II: COUP—(TIME)j—INH  II  wherein: 1) COUP is a coupler parent group capable of forming a dye upon reaction with an oxidized developer; 2) TIME is a timing group and j is 0 or 1; and 3) INH is a mild silver development inhibitor fragment. The invention provides improved color reproduction.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: May 8, 2001
    Assignee: Eastman Kodak Company
    Inventors: J. R. Vargas, Louis E. Friedrich, Stephen P. Singer
  • Patent number: 6225036
    Abstract: A multicolor photographic element comprising a support bearing a cyan dye image-forming unit comprising at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of said emulsion layers comprises tabular grains having {111} major faces containing greater than 50 mole percent bromide, and accounting for greater than 50 percent total grain projected area precipitated in a peptizer that is a water dispersible cationic starch, and contains a fragmentable electron donating sensitizer.
    Type: Grant
    Filed: March 23, 2000
    Date of Patent: May 1, 2001
    Assignee: Eastman Kodak Company
    Inventors: Joe E. Maskasky, Kenneth J. Reed, Victor P. Scaccia, James A. Friday
  • Patent number: 6203964
    Abstract: A thermal recording medium comprising a ultraviolet absorber precursor represented by formula (1-A) or an image forming compound changing hue and an acid, which is high in thermal sensitivity, recordable with such a low output laser that no ablation takes place even when a thermal heat mode image recording system using a laser is utilized, requiring no different receiving sheet, and excellent in keeping quality: wherein P represents a protecting group for a hydroxyl group which is deblocked by heating to 250° C. or less in the presence of an acid; R1 and R2, which may be the same or different, each represents a substitutable group; and 1 and m each represents an integer of 0 to 4.
    Type: Grant
    Filed: March 13, 2000
    Date of Patent: March 20, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tatsuhiko Obayashi, Junichi Yamanouchi, Atsuhiro Ohkawa
  • Patent number: 6197488
    Abstract: Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer having associated therewith a coupler according to Formula I: COUP—(TIME)n—HSM  (I) wherein: COUP is an organic fragment which reacts with oxidized developer to release—(TIME)n—HSM, TIME is an optional timing group or linking group which connects HSM to COUP at the site of reaction with oxidized developer, n=0,1 or 2, and HSM is a compound having a minimum of three heteroatoms and having a ClogP sufficient to increase the speed of said element compared to the same element without the coupler. The invention provides improved light sensitivity without significant adverse effect on granularity or ease of manufacture.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: Philip A. Allway, Bernard A. Clark, Louis E. Friedrich, Stephen P. Singer
  • Patent number: 6194131
    Abstract: A silver halide color photographic lightsensitive material comprising a compound represented by general formula (I): COUP—A—E—B  (I) wherein COUP represents a coupler residue capable of coupling with a developing agent in an oxidized form, E represents an electrophilic moiety, A represents a single bond or a divalent connecting group which can release B while forming a 4 to 8-membered ring through an intramolecular nucleophilic substitution reaction between the electrophilic moiety E and a nitrogen atom of a coupling product that is obtained by the reaction of COUP with the developing agent in an oxidized form, wherein the nitrogen atom originates from the developing agent and directly binds to a coupling position of COUP, provided that A may be bound to COUP at the coupling position or position other than the coupling position of COUP, and B represents a photographically inert group.
    Type: Grant
    Filed: May 24, 2000
    Date of Patent: February 27, 2001
    Assignee: Fuji Photo film Co., Ltd.
    Inventors: Takayuki Ito, Hidetoshi Kobayashi
  • Patent number: 6190849
    Abstract: The invention provides a color photographic element comprising: a) a first light sensitive silver halide emulsion layer containing a tetrazole compound of Formula I:  wherein when R1 is hydrogen, then R2 is an alkyl, aryl, alkoxy , aryloxy, alkylthio or arylthio, sulfoxyl, sulfonyl, sulfamoyl, —O—CO—, —O—SO2—, a heterocyclic group, a carbonyl group or an amino group or when R2 is a thiol (—SH) group, then R1 is an alkyl, aryl or heterocyclic group provided further that the ClogP for the compound of Formula I is at least 2.0 and less than 7.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Burns, Louis E. Friedrich, Stephen P. Singer
  • Patent number: 6190848
    Abstract: The invention provides a color photographic element comprising: a) a first light sensitive silver halide emulsion layer containing a compound of Formula I: wherein Q represents the atoms necessary to form a triazole ring and the associated bonds, provided that the ring members may be substituted and that two of such members may join to form a fused ring; provided further that the ClogP for the compound of Formula I is from 4.75 to 9.0; and b) a second light sensitive silver halide emulsion layer, having a spectral sensitivity different from that of the first light sensitive silver halide emulsion layer, containing a compound of Formula II: COUP-(TIME)j-INH  II wherein: 1) COUP is a coupler parent group capable of forming a dye upon reaction with an oxidized developer; 2) TIME is a timing group and j is 0 or 1; and 3) INH is a mild silver development inhibitor fragment. The invention provides improved color reproduction.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: February 20, 2001
    Assignee: Eastman Kodak Company
    Inventors: Jane S. Boff, Bernard A. Clark, Louis E. Friedrich, Stephen P. Singer
  • Patent number: 6174656
    Abstract: There is disclosed a silver halide photographic light-sensitive material having at least one light-sensitive silver halide emulsion layer on a base, which comprises a compound of the formula (1) having a photographically useful group protected: formula (1) V—Ar1—X1—(L1)m1—PUG wherein V is a group that can be converted to a hydroxyl group in the presence of a peroxide in an alkaline solution by a rearrangement reaction, Ar1 is an aryl or heterocyclic group, X1 is a methylene group substituted at a position that allows a photographically useful group to be released upon subjection of the group V to an oxidation action, L1 is a linking group, PUG is a photographically useful group, and m1 is an integer of 0 to 3. There is also disclosed is an image-forming method, which comprises processing the light-sensitive material in the presence of a peroxide. There is also disclosed a novel aromatic-aldehyde compound included in the formula (1).
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: January 16, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takashi Nakamura, Toshiyuki Makuta, Koki Nakamura
  • Patent number: 6171771
    Abstract: This invention comprises a photographic element having a support bearing one or more silver halide emulsions and one or more DIR couplers of structure I or II below: wherein: Z is a moiety which can react with oxidized developer to release a coupling-off group; R1 is a hydrogen atom or a substituent selected from the group consisting of halogen atom, alkyl, aryl, alkoxy, alkylthio, arylthio, amino, alkylamino, arylamino, carbonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, aryloxy, arylcarbonyl, alkylcarbonyl, sulphonyl and sulphonamido groups; each of the R2 substituents is a halogen atom or a substituent selected from the group consisting of alkyl, aryl, alkoxy, alkylthio, arylthio, amino, alkylamino, arylamino, carbonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, aryloxy, arylcarbonyl, alkylcarbonyl, sulphonyl and sulphonamido groups; X represents the atoms required to make a second ring which is aromatic and contains at least one nitrogen atom; and n is between 0 and the num
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: January 9, 2001
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Philip A. Allway, David A. Steele, Jerrold N. Poslusny
  • Patent number: 6156490
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a coupler based on a 1-aryl-3-arylpyrazol-5-one or a 1-aryl-3-alkylpyrazol-5-one ring and represented by formula I: ##STR1## wherein: X represents an aryl, alkyl, alkylamino, or arylamino group;Y can be carbon or sulfur; in is 1 when Y is carbon and 2 when Y is sulfur;R represents a halogen or an alkyl group; and o is 0 to 4, provided that two or more R substituents may join to form one or more additional rings;Z is either (a) an aryl group represented as Ar.sup.3 Q(n) where Q represents n independently selected substituents bonded to the Ar.sup.3 ring; and n is 0 to 5, provided that two or more Q substituents may join to form one or more additional rings or (b) an alkyl group;OAr.sup.4 is an aryloxy group; andP represents p independently selected substituents bonded to the OAr.sup.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: December 5, 2000
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Jerrold N. Poslusny, Xiqiang K. Yang
  • Patent number: 6153369
    Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a pyrazol-5-one coupler bearing a 4-aryloxy coupling-off group containing a group capable of releasing a photographically useful group (PUG) wherein:(1) the pyrazol-5-one ring contains a 1-aryl substituent which in turn contains, in a position ortho to the bond linking it to the pyrazolone ring, a secondary carbonamido group or a secondary sulfonamido group;(2) the pyrazol-5-one ring contains either (a) a 3-aryl substituent which in turn contains substituents for which the sum of the Hammett's .sigma. constant values is -0.3 or higher or (b) a 3-alkyl substituent; and(3) the 4-aryloxy coupling-off group:(a) contains ring substituents selected so that the sum of the Hammett's .sigma. constant values for all substituents on the phenoxy ring is at least 0.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Jerrold N. Poslusny, Xiqiang K. Yang
  • Patent number: 6150079
    Abstract: A color photographic material, the cyan coupler of which is of the formula ##STR1## in which R.sub.11 means an alkyl, aryl, acylamino, alkylcarbamoyl, arylcarbamoyl or a heterocyclic group,R.sub.12 means a group having electron-attracting characteristics,R.sub.13 means a group having electron-attracting characteristics,R.sub.14 means an alkyl or aryl group,R.sub.15 means a divalent linking member having 2 to 4 linking atoms,X means .dbd.O or .dbd.N--SO.sub.2 R.sub.21 andY means a group eliminable by hydrolytic or intramolecular (nucleophilic) attack,is distinguished by improved processing stability.
    Type: Grant
    Filed: January 8, 1999
    Date of Patent: November 21, 2000
    Assignee: Agfa Gevaert N.V
    Inventor: Peter Bergthaller
  • Patent number: 6150077
    Abstract: Photographic elements are provided which contain a compound having the formula:R.sup.1 --NH--(Q).sub.m --C(R.sup.2)(R.sup.3)--(TIME).sub.n -PAMwherein: R.sup.1 is an electron withdrawing moiety; Q is a group comprising a conjugated system; m is 0 or 1, and when m=1, --NH--Q--C(R.sup.2)(R.sup.3)-- is a timing or linking group which undergoes electron migration along a conjugated system to cause a cleavage reaction; TIME is a timing or linking group; n is 0, 1, 2 or 3, preferably 0 or 1; PAM is a photographically active moiety; and R.sup.2 and R.sup.3 are independently hydrogen, susbtituted or unsubstituted alkyl, aryl, heteroaryl, alkenyl, or alkynyl groups, can be combined with R.sup.1 to form a ring, or can combine together to form a ring, with the proviso R.sup.2 and R.sup.3 cannot together form a double bond with another atom and neither R.sup.2 nor R.sup.3 can be selected from RO--, RS--, R.sub.2 N--, or RSe-- where R represents any substituent.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: November 21, 2000
    Assignee: Eastman Kodak Company
    Inventors: J. Ramon Vargas, David A. Dickinson
  • Patent number: 6150078
    Abstract: The invention provides a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith an 1-arylpyrazol-5-one coupler bearing a 4-aryloxy coupling-off group containing a group capable of releasing a photographically useful group (PUG) wherein:(1) the 1-arylpyrazol-5-one ring contains a 3-aryl substituent which in turn contains substituents for which the sum of the Hammett's .sigma. constant values is at least 0, provide that two or more such substituents may join to form one or more additional rings; and(2) the 4-aryloxy coupling-off group:(a) contains ring substituents selected so that the sum of the Hammett's sigma constant values for all substituents on the aryloxy ring is at least 0.
    Type: Grant
    Filed: December 30, 1998
    Date of Patent: November 21, 2000
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Jerrold N. Poslusny, Zheng Z. Wu, Xiqiang Yang
  • Patent number: 6146820
    Abstract: This invention comprises a photographic element having a support bearing at least one silver halide emulsion and at least one DIR coupler of structure I: ##STR1## wherein: Z is a moiety which can react with oxidized developer to release a coupling-off group;R.sub.1 is selected from the substituents shown in formulas II, III, IV and V:II --SCH.sub.2 CO.sub.2 R.sub.2, III --NHCOR.sub.3, IV --OCH.sub.2 CO.sub.2 R.sub.4, V --OR.sub.5 ;R.sub.2 is an alkyl group with at least 3 carbon atoms or an aryl group with at least 7 carbon atoms;R.sub.3 is an alkyl or alkoxy group with at least 4 carbon atoms or an aryl or phenoxy group with at least 7 carbon atoms; andR.sub.4 and R.sub.5 are alkyl groups with at least 4 carbon atoms or aryl groups.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: November 14, 2000
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Philip A. Allway, David A. Steele, Jerrold N. Poslusny
  • Patent number: 6132944
    Abstract: Disclosed is a photographic element containing a light sensitive silver halide emulsion layer having associated therewith a coupler represented by Formula I: ##STR1## wherein COUP is a coupler parent group capable of reacting with an oxidized developer to form a first dye and is bonded at a coupling position to the group ##STR2## wherein X is a or NSO.sub.2 R; R is an alkyl or aryl group; and DYE is a releasable second dye that is after release the same color as the first dye and is linked to OC.dbd.X by a moiety of the DYE having Formula (IA): ##STR3## wherein R.sup.2 is a substituent; provided there is contained in the coupler of Formula I at least one group of Formula IB:--L.sub.m --Sol IBwherein L is a divalent linking group and m is 0 or 1; and Sol is a group containing an acidic hydrogen selected from the group consisting of --ArOH, --NHSO.sub.2 R.sup.1 and --SO.sub.2 NHR.sup.1, in which AR is an aromatic group and each R.sup.
    Type: Grant
    Filed: November 4, 1999
    Date of Patent: October 17, 2000
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, Steven M. Bonser, Kevin P. Dockery, David Hoke, Chang-Kyu Kim, James J. Seifert, David T. Southby, Zheng Z. Wu
  • Patent number: 6130031
    Abstract: This invention comprises a photographic element, comprising a support bearing at least one silver halide emulsion and at least one benzoylacetanilide yellow dye-forming DIR coupler of structure I, below: ##STR1## wherein: each R.sub.1 is individually selected from the group consisting of halogen atoms and alkyl and alkoxy groups;m is 0, 1, 2 or 3;R.sub.2 is selected from the group consisting of halogen atoms and alkoxycarbonyl, aryloxycarbonyl, carbonamido, sulfonamido, sulfamoyl, alkylsulfonyl, arylsulfonyl, sulfonyloxy, acyloxy and cyano groups and each is in the para position or in either meta position relative to the NH group of the anilide;X is a hydrogen or halogen atom or an alkyl or alkoxy group;R.sub.3 is a halogen atom or an alkyl group and may be in the para position or either meta position relative to the NH group of the anilide;n is 0 or 1; andR.sub.4 is an alkyl group with 3 to 10 carbon atoms or a phenyl group.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: October 10, 2000
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Jerrold N. Poslusny, David A. Steele