Patents Represented by Attorney, Agent or Law Firm Edith A. Rice
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Patent number: 6759187Abstract: 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: GrantFiled: July 11, 2000Date of Patent: July 6, 2004Assignee: Eastman Kodak CompanyInventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
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Patent number: 6756192Abstract: 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: GrantFiled: December 30, 1999Date of Patent: June 29, 2004Assignee: Eastman Kodak CompanyInventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
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Patent number: 6660464Abstract: This invention comprises a silver halide photographic element comprising a support with low oxygen permeability and at least one silver halide emulsion layer containing 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 or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is present in the emulsion layer, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of X—Y′ undergoes a bond cleavage reaction to give the radical X• and the leaving fragment Y′; and, optionally, 3) the radical X• has an oxidation potential≦−0.7V (that is, equal to or more negative than about −0.7V).Type: GrantFiled: June 19, 2000Date of Patent: December 9, 2003Assignee: Eastman Kodak CompanyInventors: Annabel A. Muenter, Steven P. Szatynski
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Patent number: 6620581Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith at least two dyes: (a) a first dye that has at least one anionic substituent and that is capable of spectrally sensitizing a silver halide emulsion; and (b) a second dye that absorbs light at an equal or shorter wavelength than the first dye and that has at least one cationic substituent and that is highly fluorescent.Type: GrantFiled: October 16, 2000Date of Patent: September 16, 2003Assignee: Eastman Kodak CompanyInventors: Richard L. Parton, Joseph C. Deaton, William J. Harrison, Margaret J. Helber
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Patent number: 6610386Abstract: This invention comprises a transferable support comprising a substantially flat sheet having on a surface thereof encoded data in the form of dot code or two-dimensional bar code wherein the data is capable of being read by a sensor. The invention also comprises object having affixed to a surface thereof a support comprising a substantially flat sheet having on a surface thereof encoded data in the form of dot code or two-dimensional bar code wherein the data is capable of being read by an sensor.Type: GrantFiled: December 31, 1998Date of Patent: August 26, 2003Assignee: Eastman Kodak CompanyInventors: Kevin W. Williams, Huijuan D. Chen, W. S. Gaugh
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Patent number: 6558893Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith a combination of two or more dyes comprising: (a) a first dye which is a cyanine dye of formula Ia and has a net charge of zero or −1 wherein the substituents are as defined in the specification; (b) a second dye which has at least one substituent that has a positive charge, and is a cyanine dye a merocyanine dye, arylidene dye, complex cyanine dye, complex merocyanine dye, homopolar cyanine dye, hemicyanine dye, styryl dye, hemioxonol dye, oxonol dye, anthraquinone dye, triphenylmethane dye, azo dye type, azomethines, or a coumarin dye, with the proviso that if the second dye is a cyanine dye, it is of formula IIa: wherein the substituents are as defined in the specification; and wherein (c) the wavelength of maximum light absorption, in nanometers (nm), of the first dye and the waveleType: GrantFiled: November 17, 2000Date of Patent: May 6, 2003Assignee: Eastman Kodak CompanyInventors: Richard L. Parton, Andrei Andrievsky, Thomas L. Penner, William J. Harrison
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Patent number: 6531272Abstract: This invention comprises 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 layers comprises large tabular grains having an average circular diameter of greater than 2 &mgr;m and contains a fragmentable electron donating compound is 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 or a leaving group Y, with the proviso that if Y′ is a prType: GrantFiled: January 25, 1999Date of Patent: March 11, 2003Assignee: Eastman Kodak CompanyInventors: James A. Friday, Joseph P. Pepe, Jeffrey C. Hansen, Annabel A. Muenter, Jerome R. Lenhard
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Patent number: 6527977Abstract: This invention comprises dispersion comprising a solvent having dispersed therein a liquid-crystal forming dye of structural Formula I: [D-(X)m]-(Y)n wherein: D is a light-absorbing chromophore other than a cyanine dye or a barbituric acid oxonol dye; each Y contains an ionic or a nonionic solubilizing substituent or a group with a pKa value of less than 4 in water; each X is a nonionic substituent; n is 0 to 10; m is 0-10; and the resulting dye forms a liquid-crystalline phase in solvent. The dispersion is particularly useful in imaging and photographic elements.Type: GrantFiled: January 12, 2001Date of Patent: March 4, 2003Assignee: Eastman Kodak CompanyInventors: Margaret J. Helber, William J. Harrison, Raymond P. Scaringe
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Patent number: 6518008Abstract: 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 silver halide emulsion layers contains a tabular grain silver halide emulsion having a halide content of at least 95% bromide and less than about 5% iodide, said iodide being substantially uniformly distributed in the silver halide grains of said emulsion, and said emulsion is sensitized with a fragmentable electron donor of the formula X—Y′ or an electron donor which contains an —XY′ moiety; whereinType: GrantFiled: January 25, 1999Date of Patent: February 11, 2003Assignee: Eastman Kodak CompanyInventors: James A. Friday, Roger A. Bryant, Annabel A. Muenter, Jerome R. Lenhard
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Patent number: 6514683Abstract: This invention comprises a photographic element comprising at least one light-sensitive silver halide emulsion layer containing 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 or a leaving group Y, with the proviso that if Y′ is a proton, a base, &bgr;−, is present in the emulsion layer, and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.4 V; and 2) the oxidized form of X—Y′ undergoes a bond cleavage reaction to give the radical X• and the leaving fragment Y′; and 3) the radical X• has an oxidation potential ≦−0.Type: GrantFiled: January 5, 2001Date of Patent: February 4, 2003Assignee: Eastman Kodak CompanyInventors: Annabel A. Muenter, Steven P. Szatynski, Sharon G. Johnston
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Patent number: 6509144Abstract: This invention comprises a photographic element comprising a support and at least one blue sensitive silver halide emulsion layer containing a tabular grain silver halide emulsion, or an emulsion in which the halide content is at least 50% chloride and no more than 5% iodide, wherein the emulsion is spectrally sensitized with at least one dye providing a peak sensitization between 446 and 500 nm and at least one dye providing a peak sensitization between 400 and 445 nm and additionally sensitized with a fragmentable electron donor of the formula: X—Y′. or an electron donor which contains an —XY′ moiety; wherein X is an electron donor moiety, Y′ is a leaving proton H or a leaving group Y, with the proviso that if Y′ is H a base, &bgr;−, is covalently linked directly or indirectly to X. and wherein: 1) X—Y′ has an oxidation potential between 0 and about 1.Type: GrantFiled: January 25, 1999Date of Patent: January 21, 2003Assignee: Eastman Kodak CompanyInventors: Kenneth J. Reed, Joseph P. Pepe, James A. Friday, Jon N. Eikenberry, Yun C. Chang, Annabel A. Muenter, Jerome R. Lenhard
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Patent number: 6498004Abstract: 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: GrantFiled: December 28, 2000Date of Patent: December 24, 2002Assignee: Eastman Kodak CompanyInventors: Jerome R. Lenhard, Annabel A. Muenter, Stephen A. Godleski, Paul A. Zielinski, Deepak Shukla, Donald R. Diehl
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Patent number: 6436624Abstract: A method for reducing dye stain of an exposed photographic element, said element comprising a support having thereon at least one image-forming layer containing a photobleachable dye, the method comprising processing the element, and exposing the processed element, in presence of a N-oxyazinium, to radiation that can be absorbed either by the photobleachable dye or by the N-oxyazinium.Type: GrantFiled: December 4, 2000Date of Patent: August 20, 2002Assignee: Eastman Kodak CompanyInventors: Samir Y. Farid, Ramanuj Goswami, Mary E. Craver, John M. Mangus
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Patent number: 6428947Abstract: 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: GrantFiled: January 5, 2001Date of Patent: August 6, 2002Assignee: Eastman Kodak CompanyInventors: Sharon G. Johnston, Annabel A. Muenter, Steven P. Szatynski, Jerome R. Lenhard
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Patent number: 6416941Abstract: A color photographic element comprises a support and at least one dye image forming layer unit comprising gelatin-peptized radiation-sensitive silver halide grains, a fragmentable electron donating compound; and an electron transfer agent releasing compound.Type: GrantFiled: December 20, 1999Date of Patent: July 9, 2002Assignee: Eastman Kodak CompanyInventors: Kenneth J. Reed, Annabel A. Muenter, Sharon R. Lunt, David T. Southby
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Patent number: 6376163Abstract: A UV or visible-light sensitive photobleachable dye composition substantially free of polymerizable monomer comprising a photobleachable dye and an N-oxyazinium compound, a photographic element containing such a photobleachable composition, and a method for bleaching a photographic element.Type: GrantFiled: February 22, 2000Date of Patent: April 23, 2002Assignee: Eastman Kodak CompanyInventors: Ramanuj Goswami, Samir Y. Farid, Robert J. Perry, Paul A. Zielinski, Ian R. Gould, Kevin W. Williams
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Patent number: 6368781Abstract: The invention relates to a photographic element comprising a support and a silve halide emulsion layer wherein the silver halide emulsion contains at least one absorber dye and at least one sensitizing dye. The wavelength of maximum absorbance of said absorber dye and the wavelength of maximum sensitivity of the emulsion provided by the spectral sensitizing dye are substantially the same. The emulsion is chemically sensitized with a stable and water soluble AuI) complex. This provides manufacturing improvements, improved detail and sharpness, improved dodging and burning and lower cost without an unwanted increase in heat sensitivity.Type: GrantFiled: October 20, 1999Date of Patent: April 9, 2002Assignee: Eastman Kodak CompanyInventors: Pamela M. Ferguson, Roger Lok, Alton L. Chitty, Norman R. Oneal
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Patent number: 6361932Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising silver halide grains having associated therewith at least two dye layers comprising (a) an inner dye layer adjacent to the silver halide grain and comprising at least one dye, Dye 1, that is capable of spectrally sensitizing silver halide and (b) an outer dye layer adjacent to the inner dye layer and comprising at least one dye, Dye 2, wherein Dye 2 is other than a cyanine dye, wherein the dye layers are held together by non-covalent forces; the outer dye layer adsorbs light at equal or higher energy than the inner dye layer; and the energy emission wavelength of the outer dye layer overlaps with the energy absorption wavelength of the inner dye layer.Type: GrantFiled: September 11, 1998Date of Patent: March 26, 2002Assignee: Eastman Kodak CompanyInventors: Richard L. Parton, Thomas L. Penner, William J. Harrison, Margaret J. Helber
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Patent number: 6355386Abstract: This invention is a dispersion comprising a solvent having dispersed therein a liquid-crystal forming dye of structural Formula I: [D—(X)m]—(Y)n I wherein: D is a merocyanine dye; each Y contains an ionic or a nonionic solubilizing substituent or a group with a pKa value of less than 4 in water; each X is a nonionic substituent; n is 1 to 10; m is 0-10; and the resulting dye forms a liquid-crystalline phase in solvent. The dispersion is particularly useful in imaging and photographic elements.Type: GrantFiled: October 16, 2000Date of Patent: March 12, 2002Assignee: Eastman Kodak CompanyInventors: Margaret J. Helber, William J. Harrison, Richard L. Parton
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Patent number: 6342339Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): wherein X is oxygen or sulfur; R1-R4 each independently represent an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heteroaryl group; L1, L2 and L3 each independently represent substituted or unsubstituted methine groups; M+ represents a proton or an inorganic or organic cation; and n is 0, 1, 2 or 3 and wherein the aggregated dye in the dispersion has an absorption halfbandwidth of less than 55 nm.Type: GrantFiled: December 7, 2000Date of Patent: January 29, 2002Assignee: Eastman Kodak CompanyInventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber