Three Methine Groups, I.e., Carbocyanines Patents (Class 430/585)
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Patent number: 8956184Abstract: A coaxial cable connector includes, in one embodiment, a coupler, a body, an inner conductor engager and an outer conductor engager. The connector also includes a driver configured to axially move along an axis as a result of at least one axial installation force.Type: GrantFiled: March 7, 2014Date of Patent: February 17, 2015Assignee: John Mezzalingua Associates, LLCInventors: Shawn M. Chawgo, Noah P. Montena
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Patent number: 7476495Abstract: A silver halide photosensitive material comprising at least one blue-sensitive layer, at least one green-sensitive layer and at least one red-sensitive layer on a transparent support, wherein a peak wavelength of spectral sensitivity of at least one of the green-sensitive layer is in the range of ?10 nm or more and +10 nm or less in comparison with a peak wavelength of a green light source for exposure.Type: GrantFiled: September 27, 2007Date of Patent: January 13, 2009Assignee: Fujifilm CorporationInventors: Tetsuo Kikuchi, Yoichi Hosoya, Masaaki Miki, Junichiro Hosokawa, Koichi Yokota, Ryoji Nishimura
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Patent number: 7303851Abstract: Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.Type: GrantFiled: September 29, 2003Date of Patent: December 4, 2007Assignee: Fujifilm CorporationInventors: Mitsunori Hirano, Kunio Ishigaki, Tokuju Oikawa
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Patent number: 7291449Abstract: Disclosed is a silver halide photographic material which comprises at least one methine dye represented by the following formula (I): wherein Y represents a furan ring or a pyrrole ring, and Y may further be condensed with other 5- or 6-membered carbocyclic ring or heterocyclic ring, or may have a substituent; the bond between two carbon atoms in which Y is condensed may be a single bond or a double bond; Z represents an atomic group necessary to form a 5- or 6-membered nitrogen-containing heterocyclic ring, and Z may further be condensed with other 5- or 6-membered carbocyclic ring or heterocyclic ring; R represents a substituted or unsubstituted alkyl group, aryl group, or heterocyclic group; D represents a group necessary to form a methine dye; L1 and L2 each represents a methine group; p represents 0 or 1; M represents a counter ion; and m represents a number of 0 or higher necessary to neutralize the charge in the molecule.Type: GrantFiled: August 17, 2001Date of Patent: November 6, 2007Assignee: Fujifilm CorporationInventors: Tetsuo Nakamura, Takanori Hioki, Katsuhisa Ohzeki, Naoyuki Hanaki
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Patent number: 7052827Abstract: A silver halide photographic material including at least one methine dye represented by the following general formula (I) and at least one coupler represented by the following general formula (XX): wherein X1 and X2 each represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, or a nitrogen atom; Y1 represents a furan, pyrrole or thiophene ring which may be condensed with another 5- or 6-membered carbon ring or heterocycle or may have a substituent group; Y2 represents an atomic group necessary for forming a benzene ring or a 5- or 6-membered unsaturated heterocycle, which may be further condensed with another 5- or 6-membered carbon ring or heterocycle or may have a substituent group; a bond between two carbon atoms by which Y1 and Y2 are each condensed with the carbon ring or the heterocycle may be a single bond or a double bond; R1 and R2 each represents a substituted or unsubstituted alkyl, aryl or heterocyclic group; L1, L2 and L3 each represents a methine group; n1 represents 0 oType: GrantFiled: August 27, 2004Date of Patent: May 30, 2006Assignee: Fuji Photo Film Co., Ltd.Inventor: Tetsuo Nakamura
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Patent number: 6838231Abstract: A process for producing a spectrally sensitized silver halide photographic emulsion having high sensitivity. A process for producing a silver halide photographic emulsion comprising as a sensitizing dye at least one connection dye having two or more chromophores connected through a covalent bond, the process comprising adding said connection dye to a silver halide photographic emulsion and allowing at least one chromophore out of a plurality of chromophores in the molecule of the connection dye to change in the adsorption strength to a silver halide grain; and a process for producing a silver halide photographic emulsion comprising a silver halide grain having adsorbed on the surface thereof a sensitizing dye in multiple layers, the process comprising adding one or a plural of sensitizing dye(s) to said silver halide emulsion and allowing at least one sensitizing dye out of added sensitizing dyes to change in the adsorption strength to a silver halide grain.Type: GrantFiled: October 15, 2002Date of Patent: January 4, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsumi Kobayashi, Takeshi Suzumoto, Takanori Hioki
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Patent number: 6828087Abstract: A silver halide photographic material comprising at least one methine dye of formula (I) and at least one coupler of formula (X): wherein X1 and X2 each represents O, S, Se, Te, N or C; Y1 represents a furan, pyrrole or thiophene ring which may be condensed and substituted with the specific ring; Y2 represents an atomic group necessary for forming a benzene ring or a 5- or 6-membered unsaturated heterocycle; R1 and R2 each represents a substituted or unsubstituted alkyl, aryl or heterocyclic group; L1, L2 and L3 each represents a methine group; n1 represents 0 or 1; M1 represents a counter ion; and m1 represents a number of 0 or more necessary for neutralizing a charge in a molecule; wherein Z1 and Z2 each represents —C(Q3)═ or —N═; Q1 and Q3 each represents a hydrogen atom or a monovalent substituent group; Q2 represents a hydrogen atom or a coupling release group.Type: GrantFiled: September 23, 2002Date of Patent: December 7, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Tetsuo Nakamura
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Patent number: 6828088Abstract: Disclosed is a silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, wherein 40 mol % or more of silver halide contained in the silver halide emulsion layer is silver bromide and the silver halide contains 1×10−6 mole or more per mole of silver of a metal complex containing one or more cyanide ligands, and the silver halide photographic light-sensitive material has a characteristic curve drawn in orthogonal coordinates of logarithm of light exposure (x-axis) and optical density (y-axis) using equal unit lengths for the both axes, on which gamma is 4.0 or more for the optical density range of 0.1-1.5. There is provided a silver halide photographic light-sensitive material showing high contrast and high sensitivity.Type: GrantFiled: November 26, 2002Date of Patent: December 7, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Tokuju Oikawa
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Patent number: 6815153Abstract: This invention relates to a silver halide photographic element comprising a support bearing a cyan dye image-forming unit comprised of 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, and 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 said photographic element has an ISO speed rating of 800 or greater and has an integrated RMS green granularity equal to or less than 11.2.Type: GrantFiled: January 17, 2003Date of Patent: November 9, 2004Assignee: Eastman Kodak CompanyInventors: James A. Friday, Roger A. Weiss, Anabisdally I. Bodden
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Patent number: 6794121Abstract: This invention relates to a method of spectrally sensitizing a silver halide emulsion comprising the following steps in the following order a) providing a silver halide emulsion comprising tabular silver halide grains having an inner dye layer adjacent to the silver halide grain, said dye layer comprising at least one dye (Dye 1) that is capable of spectrally sensitizing silver halide, b) adding to the emulsion at least one dye (Dye 2) capable of providing a second dye layer adjacent to the inner dye layer, and c) adding to the emulsion a non-cationic surfactant or a scavenger for oxidized developer, or a combination of the two, to form a silver halide emulsion comprising silver halide grains having associated therewith two dye layers, wherein the dye layers are held together by non-covalent forces or by in situ bond formation; 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 absorptionType: GrantFiled: January 17, 2003Date of Patent: September 21, 2004Assignee: Eastman Kodak CompanyInventors: David R. Foster, Stephen P. Singer, William J. Harrison, Alan R. Pitt
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Patent number: 6787297Abstract: This invention provides a silver halide photographic element comprising at least one silver halide emulsion comprising silver halide grains which have associated therewith at least an inner dye layer and an outer dye layer wherein the outer dye layer comprises a dye having at least one substituent that has a positive charge, said photographic element further comprising a cyanine dye of formula (I) or (II) (as described in the specification) that is capable of spectrally sensitizing a silver halide emulsion.Type: GrantFiled: May 12, 2003Date of Patent: September 7, 2004Assignee: Eastman Kodak CompanyInventors: Steven G. Link, Richard L. Parton, Robert D. Wilson, Roger A. Bryant, William J. Harrison
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Patent number: 6770433Abstract: A high-sensitive silver halide photographic light-sensitive material is provided. A silver halide photographic light-sensitive material comprising a dye having a plurality of dye chromophores, which contains at least one dye where at least one of the dye chromophores is a methine dye chromophore containing a basic nucleus comprising a monocyclic heterocyclic ring.Type: GrantFiled: January 11, 2002Date of Patent: August 3, 2004Assignee: Fuji Photo Film Co., Ltd.Inventor: Takanori Hioki
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Publication number: 20040126721Abstract: Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.Type: ApplicationFiled: September 29, 2003Publication date: July 1, 2004Inventors: Mitsunori Hirano, Kunio Ishigaki, Tokuju Oikawa
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Patent number: 6750002Abstract: A process for preparing a concentrated photographic spectral sensitizing dye-water composition which comprises adding an anionic sensitizing dye to an aqueous medium in the substantial absence of organic solvent, and agitating the combined dye and aqueous medium, wherein the anionic dye forms a liquid-crystalline dye phase in the aqueous medium and the agitation is performed in the presence of a nonionic surfactant having an HLB of less than 12 and an aqueous solubility at 25° C. of greater than 10 ppm, which nonionic surfactant is in the aqueous medium at a level of from 10 to 1000 ppm. In a specific embodiment of the invention, where the viscosity (at 0.1 s−1 shear rate) of the dye-water composition in the absence of the nonionic surfactant would be greater than 100 cp and especially where such viscosity would be greater than 500 cp, the surfactant is preferably present at a level sufficient to substantially reduce air entrainment during agitation of the dye-water composition.Type: GrantFiled: January 28, 2002Date of Patent: June 15, 2004Assignee: Eastman Kodak CompanyInventors: James E. Novak, Jeffrey S. Baugher, Dirk J. Hasberg, Lloyd A. Lobo
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Patent number: 6720134Abstract: A silver halide photographic emulsion comprising grains, wherein 70% or more of the total projected area of the grains is occupied by silver halide grains each meeting requirements (a) to (d) below (a) the grain is composed of a tabular silver halide host grain having two mutually parallel main planes and aspect ratio of 2 or more, and a silver halide protrusion portion epitaxially junctioned on the surface of the host grain; (b) the silver bromide contents of both the host grain and the protrusion portion are 70 mol % or more; (c) the percentage of the silver amount in the protrusion is 12% or less of the silver amount in the host grain; and (d) the grain has a shallow electron-trapping zone.Type: GrantFiled: January 14, 2002Date of Patent: April 13, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasushi Miyamoto, Toshihiro Nishikawa, Nobuyuki Haraguchi, Hideo Ikeda, Takayoshi Mori
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Patent number: 6686142Abstract: A chemically and spectrally-sensitized emulsion has been described, wherein said emulsion comprising (100) cubic silver halide grains with an average edge length of from 0.2 up to 1.5 &mgr;m, has been spectrally sensitized by addition at least three trimethine dyes: a main spectral sensitizer added in an amount of at least 85 mole % of all spectral sensitizers added, followed by adding a second spectral sensitizer in an amount of not more than 10 mole % and a third spectral sensitizer in an amount of at most 1 mole % wherein at least said main spectral sensitizer has two benzoxazole rings in its chemical structure, at least said third spectral sensitizer has two benzimidazole rings in its chemical structure and wherein the said second spectral sensitizer has a structure more sterically hindered than the structure of the other spectral sensitizers. A light-sensitive silver halide photographic film material coated with such emulsion and a radiographic screen/film combination has been described.Type: GrantFiled: March 4, 2002Date of Patent: February 3, 2004Assignee: Agfa-GevaertInventors: Kathy Elst, Paul Callant
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Publication number: 20030215760Abstract: A silver halide photographic emulsion which contains silver halide grains having light absorption strength of 100 or more.Type: ApplicationFiled: January 28, 2003Publication date: November 20, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Katsuhiro Yamashita, Katsumi Kobayashi
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Patent number: 6649337Abstract: A heat-developable photosensitive material comprises: a support; a photosensitive silver halide; a non-photosensitive organic silver salt; a reducing agent for a silver ion; a binder; and a compound having specified structure.Type: GrantFiled: November 15, 2001Date of Patent: November 18, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Takanori Hioki, Katsumi Kobayashi
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Patent number: 6649335Abstract: A cyanine dye of formula (II) wherein X1 is C(R5, R6), NR7, O, S or Se, X2 is O, S, Se or NR13, R2 with R3, or R3 with R4, are the remaining members for the completion of a condensed furano ring system, and the other R2 or R4 radical, is H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio, R10 to R12, are H, a halogen, SH, CN, CF3, alkyl, aryl, heterocyclyl, alkoxy, aryloxy, alkylthio or arylthio, or R10 with R11, or R11 with R12, are the remaining members for the completion of a ring system, R5 to R7 and R13 are alkyl, alkylene-SO3Z1 or alkylene-CO2Z1, R8 and R9 are alkyl, alkylene-SO3Z1, alkylene-CO2Z1 or alkylene-Y2—N(Z1)—Y3-alkyl, Z1 is H or a negative charge, Y2 and Y3 are —S(═O)2— or —C(═O)—, M1 is a counterion, L1, L2 and L3 are a methine group and n is 0, 1, 2 or 3.Type: GrantFiled: November 5, 2001Date of Patent: November 18, 2003Assignee: AGFA-GevaertInventor: Michael Missfeldt
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Patent number: 6649336Abstract: A silver halide photographic light-sensitive material is disclosed, including at least one silver halide emulsion layer, wherein the silver halide grain contained in the emulsion layer is silver chloroiodide or silver chloroiodobromide having a silver chloride content of 90 mol % or more and a silver iodide content of 0.01 to 1.0 mol %, at least one hexacyano complex is doped in an amount of at least 1×10−7 mol % based on the total silver amount, and the emulsion layer contains a methine dye represented by the formula (I) as defined.Type: GrantFiled: September 25, 2001Date of Patent: November 18, 2003Assignee: Fuji Photo Film Co., LTDInventors: Katsuhisa Ohzeki, Tetsuo Nakamura
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Patent number: 6607876Abstract: A radiographic silver halide film material and a radiographic screen/film combination has been disclosed, said material having in at least one light-sensitive layer thereof an emulsion comprising {111} tabular silver halide grains rich in silver bromide, spectrally sensitive to irradiation in the wavelength range between 540 and 555 nm by the presence of a combination of at least one J-aggregating spectrally sensitizing cyanine dye according to the formula (I) and of at least one additional cyanine dye providing a shift of maximum absorption wavelength of said combination of less than 10 nm versus in the absence thereof, wherein said additional cyanine dye is at least one monomethine cyanine dye according to the formula (II), essentially having a solubilizing group or a latent solubilizing group, said dyes having been given in the description and in the claims of the present invention.Type: GrantFiled: November 28, 2001Date of Patent: August 19, 2003Assignee: Agfa-GevaertInventors: Kathy Elst, Paul Callant, Ilse Mans
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Patent number: 6582895Abstract: A silver halide photographic emulsion which comprises at least one methine compound represented by the following formula (I): wherein X1 and X2 each represents an oxygen atom, a sulfur atom, a selenium atom, or N—R3, wherein R3 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a heterocyclic group; V1 and V2 each represents a monovalent substituent; n1 and n2 each represents 0, 1, 2, 3 or 4; L1, L2 and L3 each represents a methine group; l represents an integer of 0 to 3; M represents a counter ion for balancing electric charge; m represents a necessary number for balancing electric charge; and R1 and R2 each represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group, but at least either R1 or R2 represents the alkyl group represented by any of the following formulae: Ra=(Qa)rCO{overscore (N)}SO2Raa Rb=(Qb)sSO2{oType: GrantFiled: February 2, 2001Date of Patent: June 24, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoyuki Hanaki, Takanori Hioki, Kiyoshi Morimoto
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Patent number: 6582894Abstract: A silver halide photographic emulsion is disclosed, comprising a silver halide grain having a spectral absorption maximum wavelength of less than 500 nm and a light absorption intensity of 60 or more or having a spectral absorption maximum wavelength of 500 nm or more and a light absorption intensity of 100 or more, wherein assuming that a maximum value of the spectral absorption factor of said emulsion by a sensitizing dye is Amax, the distance between the shortest wavelength showing 80% of Amax and the longest wavelength showing 80% of Amax is 20 nm or more and the distance between the shortest wavelength showing 50% of Amax and the longest wavelength showing 50% of Amax is 120 nm or less.Type: GrantFiled: March 10, 2000Date of Patent: June 24, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Takanori Hioki, Katsuhiro Yamashita, Katsumi Kobayashi, Takashi Katoh
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Patent number: 6566044Abstract: The present invention provides a silver halide photographic material that is excellent in photographic speed as well as image graininess and exhibits low residual color even after rapid processing. The silver halide photographic material contains a compound represented by formula (I) and a compound represented by formula (II), as defined.Type: GrantFiled: March 26, 2001Date of Patent: May 20, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsuhisa Ohzeki, Tetsuo Nakamura, Takanori Hioki
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Patent number: 6562557Abstract: A color photographic material comprising a transparent support, at least one blue-sensitive, predominantly yellow-coupling silver halide emulsion layer, at least one green-sensitive, predominantly magenta-coupling silver halide emulsion layer (PP-1) and at least one red-sensitive, predominantly cyan-coupling silver halide emulsion layer (BG-1), characterised in that the spectral sensitivity distribution of BG-1 is characterised in that 605≦&lgr;max≦630 nm, 0.1≦&Dgr;lgE640≦0.6 and 1.Type: GrantFiled: July 19, 2001Date of Patent: May 13, 2003Assignee: Agfa-GevaertInventors: Klaus Wagner, Heinz Schütz, Peter Bell, Lothar Endres, Detlev Kapitza, Thomas Stetzer
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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: 6521401Abstract: A silver halide photographic emulsion which contains silver halide grains having a spectral absorption maximum wavelength of less than 500 nm and a light absorption strength of 60 or more, or a spectral absorption maximum wavelength of 500 nm or more and a light absorption strength of 100 or more, wherein at least one of the sensitizing dyes which are used for spectrally sensitizing the emulsion does not have an electric charge in the molecule at all, or forms an inner salt and the molecule does not have an electric charge as a whole and has at least one aromatic ring in the molecule.Type: GrantFiled: August 3, 2000Date of Patent: February 18, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsuhiro Yamashita, Katsumi Kobayashi
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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: 6485897Abstract: This invention relates to a photographic element comprising a support having thereon light sensitive silver halide layers comprising at least one red light sensitive silver halide layer, at least one green light sensitive silver halide layer, and at least one blue sensitive silver halide layer, wherein the green light sensitive silver halide layer has an absorption spectra having a maximum absorption at a wavelength &lgr;max from 530 to 560 nm and a half bandwidth less than 50 nm; and the red light sensitive silver halide layer has an adsorption spectra having a maximum absorption at a wavelength &lgr;max from 610 to 640 nm, and exhibiting from 30 nm hypsochromic of the wavelength of maximum absorption and below an area less than 40% based on the total area of the red light sensitive silver halide layer adsorption spectra. It further relates to a method of processing said element using an electronic filmwriter device.Type: GrantFiled: May 22, 2001Date of Patent: November 26, 2002Assignee: Eastman Kodak CompanyInventors: Kristen D. Lockhart, Cheryl S. Johnston, Mark E. Johnson, David L. Fridd
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Patent number: 6479226Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having on one side of the support at least two red-sensitive layers, at least two green-sensitive layers, at least two blue-sensitive layer and a light-insensitive layer, wherein at least one of the green-sensitive layers contains a green-sensitive silver halide emulsion exhibiting a sensitivity maximum at a wavelength of 525 to 540 nm and a sensitivity maximum at a wavelength of 550 to 565 nm.Type: GrantFiled: April 19, 2001Date of Patent: November 12, 2002Assignee: Konica CorporationInventor: Katsuhiko Heki
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Patent number: 6465166Abstract: Compounds represented by formula (I) and silver halide photographic materials comprising these compounds: wherein Q1 represents a methine or polymethine group necessary for completing the compound as a methine dye; Z1 represents atoms necessary to complete a 5- or 6-membered nitrogen-containing heterocyclic ring, provided that Z1 may be condensed with a ring; L1 and L2 each represent a methine group; p1 represents 0 or 1; L represents a divalent linking group and Ar represents an aromatic group, provided that L or Ar contains at least one proton dissociative group as a substituent group or a part of the linkage or aromatic group and the proton dissociative group has a pKa value of from 3 to 12; M1 represents a counter ion for charge balance; and m1 represents a number of counter ions required for neutralizing charges on the molecule, and ranges from 0 to 10.Type: GrantFiled: November 22, 2000Date of Patent: October 15, 2002Assignee: Fuji Photo Film. Co., Ltd.Inventors: Katsumi Kobayashi, Takanori Hioki
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Patent number: 6465163Abstract: A heat developable light-sensitive material comprises a support, a light-sensitive layer and a non-light-sensitive layer. The light-sensitive layer contains silver halide and a reducing agent. The non-light-sensitive layer contains a cyanine dye represented by the formula (I) or a salt thereof and a base precursor: in which R1 is hydrogen, an aliphatic group, an aromatic group, —NR21R24, —OR21 or —SR21, each of R21 and R24 independently is hydrogen, an aliphatic group or an aromatic group, or R21 and R24 are combined to form a nitrogen-containing heterocyclic ring; R2 is hydrogen, an aliphatic group or an aromatic group; R3 is an aliphatic group; L1 is a methine chain consisting of an odd number of methines; and each of Z1 and Z2 independently is an atomic group forming a five-membered or six-membered nitrogen-containing heterocyclic ring.Type: GrantFiled: August 20, 2001Date of Patent: October 15, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Masami Sakurada, Masaki Noro, Itsuo Fujiwara, Yoshiharu Yabuki
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Patent number: 6455271Abstract: Novel screening methods for identifying antimicrobial agents involving use of membrane potential indicator dyes are provided.Type: GrantFiled: July 27, 2000Date of Patent: September 24, 2002Assignee: XOMA Technology, LtdInventors: Roger G. Little, II, Susan Abrahamson, Peter Wong
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Patent number: 6379878Abstract: A silver halide color photosensitive material having at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one red-sensitive emulsion layer on a support, wherein the red-sensitive emulsion layer has the maximum value of sensitivity in a wavelength region of 580 nm to 650 nm, and the green-sensitive emulsion layer contains at least one magenta coupler represented by formula (MC-1) below: wherein the substituent are defined herein the specification.Type: GrantFiled: May 26, 2000Date of Patent: April 30, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoto Matsuda, Yoshio Shimura, Tetsuo Nakamura, Hisashi Mikoshiba
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Patent number: 6365335Abstract: A Silver halide photographic material high in sensitivity and decreased in residual color is disclosed, which comprises at least one compound represented by the following formula (I): wherein Z1 represents an oxygen atom, a sulfur atom, a selenium atom, a tellurium atom, a carbon atom or a nitrogen atom; Q represents a group necessary for forming a methine dye; M1 represents a charge equilibrium counter ion; m1 represents the number necessary for neutralizing a charge of the molecule; Vp represents a group having a log P value lower than that of Cl; q1 represents 1, 2, 3 or 4; and R1 is represented by following: R1=(La)k1CONHSO2R11, R1=(Lb)k2SO2NHCOR12, R1=(Lc)k3CONHCOR13, R1=(Ld)k4SO2NHSO2R14 wherein R11, R12, R13 and R14 each represents an alkyl group, an aryl group, a heterocyclic group, an alkoxyl group, an aryloxy group, a heterocyclyloxy group or an amino group; La, Lb, Lc and Ld each represents a methylene group; and k1, k2, k3 a nd k4 each represents aType: GrantFiled: August 13, 1999Date of Patent: April 2, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Takanori Hioki, Kiyoshi Morimoto
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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: 6348307Abstract: An object of the present invention is to provide a silver halide photographic light-sensitive material which exhibits a high sensitivity and less residual color.Type: GrantFiled: July 25, 2000Date of Patent: February 19, 2002Assignee: Fuji Photo Film Co., Ltd.Inventor: Takanori Hioki
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Patent number: 6333146Abstract: Disclosed is a compound represented by the following formula (I): wherein Z1 represents an atomic group necessary to form a 5- or 6-membered nitrogen-containing heterocyclic ring; Z2 represents an atomic group necessary to form a 5- or 6-membered heterocyclic ring, Z2 may further be substituted, or may be condensed with a hetero ring or a benzene ring; R1 represents a hydrogen atom, a halogen atom, a mercapto group, an alkyl group, an alkenyl group, an aryl group, an alkylthio group, an alkenylthio group, or an arylthio group; L1 and L2 each represents a methine group; p1 represents 0 or 1; V1 represents a substituent; and n represents 0, 1 or 2, and when n represents 2, a plurality of V1 may be the same or different.Type: GrantFiled: March 10, 2000Date of Patent: December 25, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Katsumi Kobayashi, Takashi Katoh, Junji Nishigaki
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Patent number: 6331385Abstract: This invention comprises a silver halide photographic material comprising at least one silver halide emulsion comprising tabular 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 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, wherein the dye layers are held together by non-covalent forces or by in situ bond formation; 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: December 18, 2001Assignee: Eastman Kodak CompanyInventors: Joseph C. Deaton, Richard L. Parton, Thomas L. Penner, William J. Harrison, David E. Fenton
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Patent number: 6329133Abstract: 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 wherein (b) (a) a dye having at least one substituent that has a negative charge is present, a dye having at least one substituent that has a positive charge is present, wherein at least one of the dyes is further substituted with at least one hydrogen bonding donor substituent. In a preferred embodiment, at least one of the dyes is substituted with at least two hydrogen bonding donor substituents. In another preferred embodiment a silver halide photographic material comprises at least one silver halide emulsion comprising silver halide grains having associated therewith a dye substituted with at least one guanidinium, amidinium, or imine of urea substituent.Type: GrantFiled: September 13, 1999Date of Patent: December 11, 2001Assignee: Eastman Kodak CompanyInventors: Andrei Andrievsky, Richard L. Parton, Thomas L. Penner, William J. Harrison
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Patent number: 6329132Abstract: In a method of preparing a silver halide photographic emulsion by performing spectral sensitization by adding a cyanine dye during or before chemical sensitization, a substantially insoluble silver iodobromide fine-grain emulsion is added during or after chemical sensitization of the silver halide photographic emulsion.Type: GrantFiled: December 12, 1995Date of Patent: December 11, 2001Assignee: Fuji Photo Film Co., Ltd.Inventor: Mikio Ihama
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Patent number: 6312884Abstract: This invention comprises a photographic element comprising a light sensitive silver halide emulsion layer which contains a sensitizing dye of the formula: wherein: n is 0 or 1; X, Y, and Z are independently O, N, S, Se, or C; X′ is O, NR13, S, or Se; R1 and R2 are acid substituted alkyl; R4 is H or alkyl, with the proviso that if X′ is N, R4 is H; each of R6, R7, R8 and R9 is independently H or a substituent or R7 and R8 or R8 and R9 together with the carbon atoms to which they are attached form a 5-membered or 6-membered ring; when X or Y or Z is O, N, S or Se then a, b or c, respectively, is 0 and when X or Y or Z is C, a, b or c, respectively is 1 and the corresponding R10, R11, or R12 substituent is independently H or a non-aromatic substituent; and R13 is alkyl or substituted alkyl.Type: GrantFiled: March 23, 2000Date of Patent: November 6, 2001Assignee: Eastman Kodak CompanyInventors: Steven G. Link, John D. Mee
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Patent number: 6306566Abstract: A heat developable light-sensitive material comprises a support, a light-sensitive layer and a non-light-sensitive layer. The light-sensitive layer contains silver halide and a reducing agent. The non-light-sensitive layer contains a cyanine dye represented by the formula (I) or a salt thereof and a base precursor: in which R1 is hydrogen, an aliphatic group, an aromatic group, —NR21R24, —OR21 or —SR21, each of R21 and R24 independently is hydrogen, an aliphatic group or an aromatic group, or R21 and R24 are combined to form a nitrogen-containing heterocyclic ring; R2 is hydrogen, an aliphatic group or an aromatic group; R3 is an aliphatic group; L1 is a methine chain consisting of an odd number of methines; and each of Z1 and Z2 independently is an atomic group forming a five-membered or six-membered nitrogen-containing heterocyclic ring.Type: GrantFiled: October 21, 1998Date of Patent: October 23, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Masami Sakurada, Masaki Noro, Itsuo Fujiwara, Yoshiharu Yabuki
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Patent number: 6291154Abstract: A silver halide photographic element, and a method of making such an element, comprising a tabular grain silver halide emulsion containing at least one green spectral sensitizing dye of formula I, and at least one green spectral sensitizing dye of formula II: wherein R1 and R2 may be the same or different and are selected from substituted or unsubstituted C1 or C2 alkyl, substituted or unsubstituted C1 or C2 alkoxy, halogen, substituted or unsubstituted amido, or carbamoyl or substituted or unsubstituted aryl, provided that R1 and R2 are not both aryl, and the benzo back rings may optionally be further substituted; X3 is a substituted or unsubstituted C1 to C3 alkyl or alkenyl; X1 and X2 are acid or acid salt substituted C1 to C6 alkyl or alkenyl which may be further substituted or unsubstituted; M+ is a positive ion as required to balance the charge; where R3 and R4 may be the same or different and represent substituted or unsubstituted alkyl or alkenyl of 1 to 4 cType: GrantFiled: January 29, 1993Date of Patent: September 18, 2001Assignee: Eastman Kodak CompanyInventors: Anthony Adin, Frederick Charles Derks, Melvin Michael Kestner, Steven George Link
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Patent number: 6280921Abstract: A color photographic silver halide material which contains at least one light-sensitive silver halide emulsion, and a cyanine dye of formula (I) wherein R1, R2, R3, R4, R5 and R6, independently of each other, each represent a substituent, with the proviso that at least one of the radicals R1, R2 and R3 represents a benzthienyl substituent, X represents O, S, Se, NR7, CH═CH or C(CH3)2, wherein R7 represents an alkyl radical which is optionally substituted, S1 and S2 independently of each other, represent alkyl, sulphoalkyl, carboxyalkyl, —(CH2)1—SO2—Y—SO2-alkyl, —(CH2)1—SO2—Y—CO-alkyl, —(CH2)1—CO—Y—SO2-alkyl, —(CH2)1—CO—Y—O-alkyl, —(CH2)1—NH—SO3⊖, —(CH2)1—N(alkyl)—SO3⊖ or —(CH2)1—N(Aryl)—SO3⊖ , with the proviso that l=1 to 6 and Y is NH or N—, n is 0, 1, 2 or 3, L1, L2 and L3 independently represent aType: GrantFiled: February 11, 2000Date of Patent: August 28, 2001Assignee: AGFA-GevaertInventors: Missfeldt Michael, Herrmann Stefan
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Patent number: 6261753Abstract: The present invention relates to the use of dye-stuffs of the general formula I in which R1, R2 and R3 and M• are as defined in claim 1, as infra-red-absorbing agents in hydrophilic colloidal layers, for example in recording materials or for detection purposes, recording materials, for example photographic recording materials, which comprise such dyestuffs in hydrophilic colloidal layers, and new dyestuffs of the general formula I.Type: GrantFiled: March 12, 1998Date of Patent: July 17, 2001Assignee: Riedel-De Haen AktiengesellschaftInventors: Ralph Lonsky, Lutz Uwe Lehmann
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Patent number: 6258523Abstract: The present application provides cyanine dyes of the formula (1) in which R1, R2, R3, R4, R5, R6 mutually independently mean H, a substituent or R5 together with R6 or R4 together with R5 mean the remaining members to complete an optionally substituted fused benzo ring or naphtho ring system, providing that at least one of the substituents R1, R2 or R3 is a benzothienyl substituent, X denotes O, S, Se, CH=CH, C(CH3)2 or NR7 (R7 =optionally substituted alkyl), S1, S2 mutually independently mean alkyl, sulfoalkyl, carboxyalkyl, —(CH2)1—SO2—Y—SO2-alkyl, —(CH2)1—SO2—Y—CO-alkyl, —(CH2)1—CO—Y—SO2-alkyl, —(CH2)1NHSO−3, —(CH2)1N(alkyl)SO−3, —(CH2)1N(aryl)SO-−3, —(CH2)1—CO—Y—CO-alkyl, providing that 1 means 1 to 6 and Y means NH or N−, n means 3, 5 or 7, L denotes substituted or unsubstituted methine groups, which may be constituents of one or moType: GrantFiled: September 10, 1999Date of Patent: July 10, 2001Assignee: Agfa-GevaertInventors: Michael Missfeldt, Stefan Herrmann
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Patent number: 6221574Abstract: The present application provides cyanine dyes of the formula (I) in which R1, R2, R3, R4, R5 and R6 mutually independently denote a substituent, providing that at least one of the residues R1, R2, R3 denotes an indolyl substituent, X denotes O, S, Se, NR9, CH═CH or C(CH3)2, wherein R9 denotes a optionally substituted alkyl residue, R7, R8 mutually independently denote alkyl, sulfoalkyl, carboxyalkyl, —(CH2)1—SO2−Y—SO2—alkyl, —(CH2)1—SO2—Y—CO—alkyl, —(CH2)1—CO—Y—SO2—alkyl, —(CH2)1—CO—Y—O—alkyl or —(CH2)1—NH—SO3&thgr;, —(CH2)1—N(alkyl)—SO3&thgr; or —(CH2)1—N(aryl)—SO3&thgr;, providing that l=1 to 6 and Y means NH or N−, n means 1, 3, 5, 7, L denotes a substituted or unsubstituted methine group, which may be a constituent of one or more carbocyclic rings, and M denotes a counterion optionally necessType: GrantFiled: September 29, 1999Date of Patent: April 24, 2001Assignee: Agfa-Gevaert N.V.Inventor: Michael Missfeldt
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Patent number: 6218096Abstract: A silver halide (AgX) color photosensitive material comprises, on a support, a AgX emulsion layer (BL) containing a yellow coupler and spectrally sensitized such that a spectral sensitivity region is 400 to 520 nm, a AgX emulsion layer (GL) containing a magenta coupler and spectrally sensitized such that a spectral sensitivity region is 470 to 600 nm, and a AgX emulsion layer (RL) containing a cyan coupler and spectrally sensitized such that a spectral sensitivity region is 540 to 700 nm, wherein barycentric sensitivity wavelength of a spectral sensitivity distribution of GL (&lgr;G), that of RL (&lgr;R), and that of BL (&lgr;B) are 520 to 580 nm, 590 to 650 nm, and 430 to 485 nm, respectively, the material further has an interlayer effect donor lay (DL) by which a barycentric wavelength (&lgr;−R) of a magnitude distribution of an interlayer effect given to at least one RL at a wavelength of 500 to 600 nm satisfies 500 nm≦&lgr;−R≦560 nm, and &lgr;G−&lgr;−R≧5 nm, DL is placed cType: GrantFiled: April 20, 1999Date of Patent: April 17, 2001Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Ishii, Akira Ikeda, Fumitaka Ueda, Hiroyuki Yamagami, Yoshiharu Yabuki
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Patent number: 6171776Abstract: A colour photographic silver halide material in which at least one of the blue-sensitive silver halide emulsions is spectrally sensitised with a mixture of at least one seansitising dye of the formula (I) and at least one sensitising dye of the formula (II): in which R1 means an optionally substituted thienyl, pyrroly, indolyl, furamyl or phenyl, in which R5, R6, R7, mean H or R5 and R6 together or R6 and R7 together mean the remaining members of a fused benzo ring and the residual substituent means H and R2, R3, R4, R8, R9, R10 and M have the meaning stated in the description, is distinguished by elevated sensitivity and improved latent image stabilitity.Type: GrantFiled: December 10, 1998Date of Patent: January 9, 2001Assignee: Agfa N.V.Inventors: Cuong Ly, Michael Missfeldt, Heinz-Horst Teitscheid, Edgar Draber