Azo Patents (Class 430/519)
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Patent number: 10177315Abstract: Provided is an arylsulfonic acid compound characterized by being represented by formula (1). [In the formula, Ar1 represents a group represented by formula (2) (in formula (2), R1 to R5 each independently represent a hydrogen atom, halogen atom, cyano group, nitro group, methyl group, or trifluoromethyl group; however, at least one of R1 to R5 represents a halogen atom) and Ar2 represents a group represented by formula (3) or (4).Type: GrantFiled: October 8, 2014Date of Patent: January 8, 2019Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.Inventor: Naoki Nakaie
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Patent number: 7579139Abstract: A silver halide color photographic light-sensitive material, in which a non-light-sensitive hydrophilic colloidal layer, on a transmission-type support, contains a solid fine-particle dispersion of a dye represented by formula (I), any one of photographic constituting layers contains a compound represented by formula (A) and/or a compound represented by formula (B) or (FS-2), and the light-sensitive material does not contain any compound represented by formula (C): in formulas (I), (A), (B) and (C), D represents a group to give a compound having a chromophore; X represents a dissociable hydrogen or a group having a dissociable hydrogen; y is an integer from 1 to 7; R1 represents a substituted or unsubstituted alkyl or alkoxy group; R2 and R3 each independently represent a substituted or unsubstituted alkyl group; R4 represents a substituted or unsubstituted alkyl group; M, M1, M2 and M3 each independently represent a cation; n represents an integer of 1 to 7; A and B each independently represent a fluorType: GrantFiled: December 26, 2006Date of Patent: August 25, 2009Assignee: FUJIFILM CorporationInventors: Hidekazu Sakai, Shin Soejima, Shinji Tanaka
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Patent number: 7531465Abstract: Provided is a method of manufacturing a nitride-based semiconductor light-emitting device having an improved structure in which optical extraction efficiency is improved. The method of manufacturing a nitride-based semiconductor light-emitting device including an n-doped semiconductor layer, an active layer, a p-doped semiconductor layer, an n-electrode and a p-electrode includes: forming an azobenzene-functionalized polymer film on a base layer by selecting one layer from the group consisting of the n-doped semiconductor layer, the p-doped semiconductor layer, the n-electrode and the p-electrode as the base layer; forming surface relief gratings of a micro-pattern caused by a photophysical mass transport property of azobenzene-functionalized polymer by irradiating interference laser beams onto the azobenzene-functionalized polymer film; forming a photonic crystal layer using a metal oxide on a recessed gap of the azobenzene-functionalized polymer film, and removing the azobenzene-functionalized polymer film.Type: GrantFiled: March 23, 2007Date of Patent: May 12, 2009Assignee: Samsung Electro-Mechanics Co., Ltd.Inventors: Jae-hee Cho, Cheol-soo Sone, Dong-yu Kim, Hyun-gi Hong, Seok-soon Kim
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Patent number: 7223528Abstract: The present invention provides a photothermographic material having, on at least one side of a support, at least an image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for the organic silver salt, and at least one non-photosensitive layer, wherein the material contains a water-soluble magenta dye, and also provides an image forming method.Type: GrantFiled: December 29, 2004Date of Patent: May 29, 2007Assignee: Fujifilm CorporationInventors: Seiichi Yamamoto, Masaharu Sugai, Rikio Inoue
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Patent number: 6855292Abstract: An automated in situ heat induced antigen recovery and staining method and apparatus for treating a plurality of microscope slides. The process of heat induced antigen recovery and the process of staining the biological sample on the microscope slide are conducted in the same apparatus, wherein the microscope slides do not need to by physically removed from one apparatus to another. Each treatment step occurs within the same reaction compartment. The reaction conditions of each reaction compartment for treating a slide can preferably be controlled independently, including the individualized application of reagents to each slide and the individualized treatment of each slide. The reagents are preferably held in a reagent dispensing strip similar to a “blister pack”.Type: GrantFiled: March 14, 2003Date of Patent: February 15, 2005Inventor: Lee Angros
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Patent number: 6787295Abstract: There is disclosed a method of preparing a photographic solid fine-grain dispersion, the method comprising the steps of: successively bringing a slurry of a water-insoluble photographically useful compound in a grinding chamber of a dispersing machine, which chamber is filled with media, allowing the compound to contact the media in the grinding chamber, to produce fine grains of the compound successively, successively separating the media from the compound by centrifugal force, and taking the compound out of the grinding chamber, using specific media with given physical properties. There is also disclosed a dispersion obtained by the method. According to the method, the photographic solid fine-grain dispersion is prepared efficiently, without coarse grains or abrasion materials resulting from media or so, and the dispersion causes no defect when coated in a form of a coating film.Type: GrantFiled: September 30, 1999Date of Patent: September 7, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Nakanishi, Yoshihito Hodosawa, Yuko Saito, Nagahiko Tanaka
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Patent number: 6777175Abstract: A silver halide photographic material for direct observation comprising a support having on one side of the support, (a) a photosensitive layer comprising a silver halide emulsion; and (b) a non-photosensitive layer, wherein the photographic material comprises at least one oil-soluble dye having a maximum absorption wavelength of a spectral reflection density curve in a range of 540 to 580 nm and exhibiting an absorption density at 440 nm of not more than ¼ of an absorption density at the maximum absorption wavelength.Type: GrantFiled: February 3, 2003Date of Patent: August 17, 2004Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Toyoki Nishijima
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Patent number: 6743573Abstract: This invention provides a black and white silver halide photographic display element comprising a support and a layer on top of said support comprising baryta and a yellow pigment represented by Formula I wherein each of R1, R2, and R5 independently represents a halogen atom, or a substituted or unsubstituted alkyl, alkenyl, aryl, aralkyl, cycloalkyl, alkoxy, or alkyl amino group of 1 to 8 carbon atoms, or a substituted or unsubstituted aminocarbonyl, alkoxycarbonyl or alkylthio group of 2 to 10 carbon atoms, or a substituted or unsubstituted alkylsulfonyl, arylsulfonyl or sulfamoyl group of 1 to 8 carbon atoms, or a nitro, amino, acetamido, hydroxy, cyano, carboxy, carboxylate, sulfonic acid, or sulfonate group, additionally pairs of R1 or R2 may represent the non-metallic atoms necessary to complete a substituted or unsubstituted ring system containing at least one 5- or 6-membered heterocyclic or carbocylic fused ring; and n, m and r are independently 0 to 5.Type: GrantFiled: February 3, 2003Date of Patent: June 1, 2004Assignee: Eastman Kodak CompanyInventors: Margaret J. Helber, Charles H. Vogt, David T. Southby
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Publication number: 20040005520Abstract: A silver halide color photographic light-sensitive material that has, on a transmissive support, at least one yellow color-forming light-sensitive silver halide emulsion layer, at least one cyan color-forming light-sensitive silver halide emulsion layer, and at least one magenta color-forming light-sensitive silver halide emulsion layer, and at least one non-light-sensitive hydrophilic colloid layer, and that contains a water-soluble dye that gives a maximum absorption in the range of 570 to 610 nm and a half width at half maximum on the longer wavelength side of 40 nm or less in a hydrophilic colloid layer, and a water-soluble dye that gives a maximum absorption at 740 nm or more and a half width at half maximum on the shorter wavelength side of 100 nm or less in a hydrophilic colloid layer.Type: ApplicationFiled: June 26, 2003Publication date: January 8, 2004Inventor: Hidekazu Sakai
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Patent number: 6638696Abstract: This invention provides a display element comprising a support, a phosphorescent material, and at least one layer containing a silver halide emulsion, wherein the phosphorescent material is not excited upon exposure of the silver halide emulsion. It further provides methods of exposing and processing such display elements.Type: GrantFiled: July 16, 2002Date of Patent: October 28, 2003Assignee: Eastman Kodak CompanyInventor: Kevin M. Donovan
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Publication number: 20030104323Abstract: A silver halide color negative photographic lightsensitive material comprises, on a support, at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer. The total coating amount of colored couplers in the lightsensitive material is less than 0.05 mMol/m2. The lightsensitive material contains at least one spectrally sensitized silver halide emulsion and a compound capable of absorbing light within the spectrally sensitizing region of the spectrally sensitized silver halide emulsion, and capable of reducing the sensitivity of the spectrally sensitized silver halide emulsion by at least 0.05 LogE.Type: ApplicationFiled: April 17, 2002Publication date: June 5, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Hiroshi Tamaoki, Yasushi Nozawa, Keisuke Matsumoto
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Patent number: 6558880Abstract: Photothermographic materials comprise heat-bleachable antihalation compositions in backside antihalation layers. These compositions comprise a hexaarybiimidazole and an oxonol dye that can be represented by the following Structure I: A1═L1—(L2═L3)p—(L4═L5)q—(L6═L7)r—A2−(M)k wherein A1 and A2 are the same or different activated methylene moieties, L1 through L7 independently represent a substituted or unsubstituted methine group, M represents a counterion, k is the number of M counterions necessary to provide neutral charge for Structure I, p, and q, are independently 0 or 1, and r is 0, 1, or 2. The antihalation composition is typically bleached when subjected to a temperature of at least 90° C. for at least 0.5 seconds.Type: GrantFiled: June 6, 2001Date of Patent: May 6, 2003Assignee: Eastman Kodak CompanyInventors: Ramanuj Goswami, William D. Ramsden, Paul A. Zielinski, David G. Baird, LuAnn K. Weinstein, Margaret J. Helber, Doreen C. Lynch
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Patent number: 6541176Abstract: There is disclosed a process for making a lithographic printing plate, which comprises subjecting a lithographic printing material having at least a silver halide emulsion layer and a physical development nuclei layer on a support and having a sensitivity at a wavelength of 400 nm to 440 nm of 20 &mgr;J/cm2 or less, and having substantially no sensitivity at a wavelength of 450 nm or longer to scanning exposure by a scanning type exposure device on which a violet laser diode is mounted, and then subjecting to developing treatment.Type: GrantFiled: April 2, 2001Date of Patent: April 1, 2003Assignee: Mitsubishi Paper Mills, Ltd.Inventors: Takashi Miyazaki, Satoshi Shimonodan, Etsuji Tanaka, Motozo Yamano
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Patent number: 6521398Abstract: A polyester film is disclosed comprising on its upper side a latex subbing layer, and a gelatin subbing layer which contains a black spacing agent. This polyester film can be advantageously used as support for several imaging elements, such as photographic materials, (photo)thermographic materials, and ink jet recording elements.Type: GrantFiled: June 26, 2001Date of Patent: February 18, 2003Assignee: Agfa-GevaertInventors: Roland Claes, Etienne Van Thillo
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Patent number: 6455210Abstract: This invention relates to a photothermographic element comprising a support, at least one photothermographic image-receiving layer, and at least one antihalation layer or a filter layer, wherein the antihalation or filer layer comprises an aqueous heat-bleachable composition comprising at least one dye and at least one hexaarylbiimidazole in the form of particles dispersed in a matrix comprising a hydrophilic or aqueous dispersible polymer.Type: GrantFiled: December 6, 2000Date of Patent: September 24, 2002Assignee: Eastman Kodak CompanyInventors: Mark E. Irving, Ramanuj Goswami, Kenneth N. Kilminster
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Publication number: 20020106590Abstract: This invention relates to a photothermographic element comprising a support, at least one photothermographic image-receiving layer, and at least one antihalation layer or a filter layer, wherein the antihalation or filer layer comprises an aqueous heat-bleachable composition comprising at least one dye and at least one hexaarylbiimidazole in the form of particles dispersed in a matrix comprising a hydrophilic or aqueous dispersible polymer.Type: ApplicationFiled: December 6, 2000Publication date: August 8, 2002Inventors: Mark E. Irving, Ramanuj Goswami, Kenneth N. Kilminster
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Publication number: 20020009656Abstract: This invention comprises dispersion comprising a solvent having dispersed therein a liquid-crystal forming dye of structural Formula I:Type: ApplicationFiled: January 12, 2001Publication date: January 24, 2002Applicant: Eastman Kodak CompanyInventors: Margaret J. Helber, William J. Harrison, Raymond P. Scaringe
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Publication number: 20010038979Abstract: A dispersion comprising an aqueous medium having dispersed therein an aggregated dye of the Formula (I): 1Type: ApplicationFiled: December 7, 2000Publication date: November 8, 2001Inventors: Margaret Jones Helber, William James Harrison, Elizabeth Ann Gallo, Mary Christine Brick, Steven Wade Kortum, Gary Norman Barber
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Patent number: 6303260Abstract: Compositions useful for a lift-off resist in a bilayer metal lift-off process, which comprise a mixture of at least one solvent, at least one polyglutarimide resin and an effective amount of at least one actinic-absorbing dissolution rate modifier having the formulae of (IA) or (IB): in which each R1 and R2 is selected from the group consisting of hydrogen, unsubstituted or substituted alkyl, alkoxy, nitro, halo, amide or hydroxy or a combination thereof, X is an aromatic group and R3 and R4 are selected from the group consisting of hydrogen, an unsubstituted or substituted alkyl or arylsulfonyl; each m is an integer from 1 to 5 and each n is an integer from 1 to 4.Type: GrantFiled: March 31, 2000Date of Patent: October 16, 2001Assignee: MicroChem Corp.Inventors: Rodney J. Hurditch, Donald W. Johnson, Neela Joshi
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Patent number: 6300047Abstract: The present invention relates to a support base for light-sensitive photographic elements. In particular, the present invention relates to a support base comprising a support having coated thereon at least two antihalation layers overcoated by a protective layer. The support base for light-sensitive photographic elements of the present invention presents an improved coating quality with a reduced formation of mottle, defined as an irregularly patterned defect due to the tendency of the coated layers to reproduce any deformation present on the support.Type: GrantFiled: May 23, 2000Date of Patent: October 9, 2001Inventors: Wilma Massucco, Domenico Marinelli, Piero Cavalleri
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Patent number: 6284442Abstract: A black and white monosheet thermographic recording material having a spectrophotometrically determined maximum absorption for visible light between 570 and 650 nm and comprising a support and a thermosensitive element, said thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the substantially light-insensitive black and white monosheet thermographic recording material contains at least two colorants with maximum absorption at a wavelength between 450 nm and 700 nm, none of the at least two colorants is an antihalation dye, and at least one of the at least two colorants is incorporated in the support; and photothermographic and thermographic recording processes therewith.Type: GrantFiled: November 23, 1999Date of Patent: September 4, 2001Assignee: Agfa-GevaertInventors: Guy Michel Van Ackere, Geert Defieuw, Ivan Hoogmartens, Johan August Loccufier
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Patent number: 6261733Abstract: According to the present invention, there is provided a silver salt diffusion transfer material, comprising on a hydrophilic surface of a support in the order given (i) an image receiving layer containing physical development nuclei, (ii) a photosensitive layer containing a silver halide emulsion being in water permeable relationship with said image receiving layer and (iii) a top layer containing gelatin, said silver halide emulsion being spectrally sensitized with a dye with a sensitizing maximum between 380 and 430 nm, characterized in that said top layer comprises a compound I and/or a compound IIType: GrantFiled: May 3, 2000Date of Patent: July 17, 2001Assignee: Agfa-GevaertInventors: Paul Coppens, Ludo Vervloet, Paul Callant
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Patent number: 6214499Abstract: 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: September 11, 1998Date of Patent: April 10, 2001Assignee: Eastman Kodak CompanyInventors: Margaret J. Helber, William J. Harrison, Raymond P. Scaringe
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Patent number: 6180330Abstract: An imaging element comprising a reflective base and at least one gelatin containing layer said at least one layer comprising a dispersion of solid particle pigments of a particle size less than 1.0 micrometer.Type: GrantFiled: August 10, 1999Date of Patent: January 30, 2001Assignee: Eastman Kodak CompanyInventors: Thaddeus S. Gula, Robert P. Bourdelais, John F. Sawyer, Mary Christine Brick
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Patent number: 6174657Abstract: A photothermographic element comprises: (a) a support bearing on one surface thereof (b) a photosensitive emulsion layer (i) a binder; (ii) a light-insensitive organic silver salt, (iii) a reducing agent, and (iv) a photosensitive silver halide emulsion; (c) an antihalation dye incorporated in the emulsion layer, in a polymer layer under the photosensitive layer, in the support, or in a backside polymer layer; and (d) one or more tinting dyes such that the final color space of the film lies within the range defined by 220°<hab<260°, where hab is the psychometric hue angle, hab=arctan(b*/a*), as defined in the CIELAB color system.Type: GrantFiled: June 24, 1998Date of Patent: January 16, 2001Assignee: Eastman Kodak CompanyInventors: Charles H. Weidner, Dorothy T. Java, Stephen A. Hershey, Elizabeth K. Priebe
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Patent number: 5998117Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support and one or more photographic constituent layers and at least one of said layers contains a dye capable of being decolored by reacting with a color developing agent.Type: GrantFiled: March 6, 1997Date of Patent: December 7, 1999Assignee: Konica CorporationInventors: Motoaki Sugino, Nobuaki Kagawa, Shigeto Hirabayashi, Atsushi Tomotake, Satoshi Nakagawa
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Patent number: 5994431Abstract: An ultraviolet light absorbing material that resists blooming and migration is made up of a carboxyl functional polymer and an amide functional ultraviolet light absorbing compound, wherein the carboxyl functional polymer and the amide functional ultraviolet light absorbing compound are hydrogen bonded to one another. Polymeric films that contain a polyolefin and the ultraviolet light absorbing material are useful as the top layer in multilayer constructions such as retroreflective sheetings and conformable marking sheets.Type: GrantFiled: May 3, 1996Date of Patent: November 30, 1999Assignee: 3M Innovative Properties CompanyInventors: David B. Olson, David M. Burns
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Patent number: 5932402Abstract: A colour photographic recording material, comprising of a transparent film base, red-sensitive, green-sensitive and blue-sensitive silver halide emulsion layer units which are disposed thereon and which contain colour couplers, and optionally of further light-insensitive layers, wherein the green-sensitive silver halide emulsion layer unit comprises at least two green-sensitive partial layers, the partial layer of which which is furthest from the film base has the highest sensitivity and is situated further from the film base than is each partial layer of the red-sensitive silver halide emulsion layer unit, and wherein each partial layer of the blue-sensitive silver halide emulsion layer unit is situated further from the film base than is the highest-sensitivity partial layer of the green-sensitive silver halide emulsion layer unit, contains, in the highest-sensitivity partial layer of the green-sensitive silver halide emulsion layer unit, an organic yellow dye which can be decolorised during processing; theType: GrantFiled: December 16, 1997Date of Patent: August 3, 1999Assignee: Agfa-Gevaert AGInventors: Heinz Schutz, Rainer Scheerer, Klaus Sinzger
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Patent number: 5919598Abstract: A method for making multilayer resist structures for microlithographic processing using a thermosetting anti-reflective coating is disclosed for a broad range of exposure wavelengths, said coating containing an active curing catalyst, ether or ester linkages derived from epoxy functionality greater than 3.0, a dye-grafted hydroxyl-functional oligomer, and an alkylated aminoplast crosslinking agent, all present in a low-to-medium alcohol-containing solvent.Type: GrantFiled: August 6, 1996Date of Patent: July 6, 1999Assignee: Brewer Science, Inc.Inventors: Tony D. Flaim, Jim D. Meador, Xie Shao, Terry Lowell Brewer
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Patent number: 5883232Abstract: Disclosed are diazahemicyanine hydrophobic cationic dyes represented by the formula (1): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are lower alkyl groups having not more than 5 carbon atoms, R.sup.5 is a lower alkyl group having not more than 5 carbon atoms or a lower alkoxy lower alkyl group having not more than 6 carbon atoms, and Z.sup.- is a counter ion having a hydrophobic organic group, and a thermal transfer ink ribbon having a substrate and and ink layer laminated thereon containing said cationic dye.Type: GrantFiled: July 14, 1998Date of Patent: March 16, 1999Assignees: Sony Corporation, Hodog aya Chemical Co., Ltd.Inventors: Masanobu Hida, Kengo Ito, Yoshio Fujiwara, Nobuo Suzuki, Hiroyoshi Yamaga, Junichi Hagiwara
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Patent number: 5783380Abstract: A thermally processable imaging element is comprised of:(1) a support;(2) a thermographic or photothermographic imaging layer on one side of the support;(3) a transparent protective layer comprising:(A) a film forming binder;(B) a dye in said protective layer in an amount sufficient to impart a pre-selected color thereto; and(C) matte particles, the color of which substantially matches the color of the protective layer.Type: GrantFiled: September 24, 1996Date of Patent: July 21, 1998Assignee: Eastman Kodak CompanyInventors: Dennis Edward Smith, Sharon Marilyn Melpolder, John Leonard Muehlbauer
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Patent number: 5750323Abstract: Solid particle dispersions of compounds useful in imaging elements can be made with substantially improved stability to particle growth by dispersing the compound of interest in the presence of a relatively small amount of a second compound that is structurally similar to the compound of interest. This second compound is combined with the compound of interest prior to dispersing the compound of interest, i.e., prior to milling in the case of milled dispersions, and prior to precipitation in the case of pH or solvent precipitated dispersions. While being distinct, the second compound has a similar chemical structure to the main compound.Type: GrantFiled: August 15, 1996Date of Patent: May 12, 1998Assignee: Eastman Kodak CompanyInventors: Raymond Peter Scaringe, David Darrell Miller, Mary Christine Brick, Leslie Shuttleworth, Margaret Jones Helber, Steven Evans
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Patent number: 5709983Abstract: Photographic elements are formed by (a) coating a first layer on a transparent support from a coating composition comprising an organic solvent, an alkaline aqueous insoluble, organic solvent soluble film forming binder, and a solid particle non-aqueous dispersion of a filter dye which is substantially insoluble in the organic solvent and readily soluble or decolorizable in alkaline aqueous photographic processing solutions at pH of 8 or above, and (b) coating a second layer on the opposite side of the support relative to the filter dye containing layer from an aqueous coating composition comprising a silver halide emulsion.Type: GrantFiled: August 15, 1996Date of Patent: January 20, 1998Assignee: Eastman Kodak CompanyInventors: Mary Christine Brick, Thomas Michael Smith, Ronda Ellen Factor, Eugene Arthur Armour, Wayne Arthur Bowman
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Patent number: 5688636Abstract: A new type of yellow dyes with general formula Q--CO--CO--X is disclosed. They can be used in photographic materials as antihalation dyes, acutance dyes or filter dyes. Preferably they are incorporated in UV sensitive contact materials for pre-press applications.Type: GrantFiled: May 29, 1996Date of Patent: November 18, 1997Assignee: AGFA-Gevaert, N.V.Inventor: Eric Kiekens
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Patent number: 5683860Abstract: A silver halide light sensitive photographic element comprising a support bearing on one side thereof at least one light-sensitive silver halide emulsion layer, wherein the emulsion layer or a separate hydrophilic colloid layer of the element comprises a soluble absorber dye of the following formula (I): ##STR1## wherein each M is H or a counterion; each R.sup.1 and R.sup.2 independently represents H or a photographically acceptable substituent; m+p equals from 1 to 4; n+q equals from 1 to 4; and each of r and t represents from 0 to 3. In preferred embodiments of the invention, the element comprises at least one red-sensitive silver halide emulsion layer, and a dye of formula (I) is coated on the same side of the support as the red-sensitive emulsion layer.Type: GrantFiled: December 18, 1996Date of Patent: November 4, 1997Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Linda J. Beattie, Gary N. Barber
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Patent number: 5658718Abstract: Multilayer silver halide color photographic element comprising a support having thereon at least a blue sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least a green-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, and at least a red-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, said red-sensitive layer containing a non-diffusible, cyan dye-forming magenta masking coupler.Type: GrantFiled: December 22, 1995Date of Patent: August 19, 1997Assignee: Imation CorpInventors: Anna Maria Canuti, Roberto Sardelli, Massimo Bertoldi
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Patent number: 5658717Abstract: Multilayer silver halide color photographic element comprising a support having thereon at least a blue sensitive silver halide emulsion layer containing a yellow dye-forming coupler, at least a green-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, and at least a red-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, said red-sensitive layer or a gelatin interlayer adjacent said red-sensitive layer containing a non-diffusible, non-coupling magenta colored azo dye.Type: GrantFiled: December 22, 1995Date of Patent: August 19, 1997Assignee: Imation Corp.Inventors: Anna Maria Canuti, Roberto Sardelli, Massimo Bertoldi
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Patent number: 5652091Abstract: Heat bleachable elements have antihalation layers composed of metallized or unmetallized formazan dyes, hexaarylbiimidzoles having alkoxy substituents and film forming binders that soften upon heating. These layers are rapidly bleached at relatively low temperatures. Polymeric acidic layers adjacent the antihalation layers provide an acidic component that increases bleaching rates when the acidic layer is also softened during processing.Type: GrantFiled: January 5, 1996Date of Patent: July 29, 1997Assignee: Eastman Kodak CompanyInventors: Robert James Perry, Ramanuj Goswami
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Patent number: 5594047Abstract: Loaded latex dispersions of hydrophobic photographically useful compounds with a wide variety of polymer latices are prepared by preparing an oil phase solution of the hydrophobic compound or compounds, preferably essentially free of water-miscible or volatile solvent, combining the oil solution with one or more aqueous solutions, at least one of which contains a polymer latex, and mixing the combination of oil solution, aqueous solution and latex under high shear or turbulence sufficient to cause loading of the photographically useful compound into the dispersed polymer latex wherein the pH of the mixture does not need to be significantly changed.Type: GrantFiled: February 17, 1995Date of Patent: January 14, 1997Assignee: Eastman Kodak CompanyInventors: Ralph B. Nielsen, Thomas A. Rosiek, David F. Bates, James S. Honan, Hwei-Ling Yau
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Patent number: 5558973Abstract: A heat-developable color light-sensitive material is described, which comprises, on a support, at least a light-sensitive silver halide, a non-diffusible dye-donating compound capable of releasing or forming a diffusible dye in correspondence or reverse correspondence with a reaction of reducing the silver halide to silver, and a binder, which contains a specific solid organic pigment in at least one layer of a light-sensitive silver halide emulsion layer and/or its adjacent layer(s) and which contains an alginic acid derivative in the same layer containing the solid organic pigment.Type: GrantFiled: January 31, 1995Date of Patent: September 24, 1996Assignee: Fuji Photo Film Co., Ltd.Inventor: Makoto Yamada
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Patent number: 5532117Abstract: The invention provides a multicolor negative photographic element which contains a layer containing a yellow or orange-yellow azoaniline dye of structure I ##STR1## wherein: R.sub.1 is an alkyl group or a phenyl group;R.sub.2 is hydrogen or an alkyl group;R.sub.3 is an alkoxy, aryloxy or alkyl group when R.sub.2 is hydrogen, or is hydrogen when R.sub.2 is an alkyl group;R.sub.1 and R.sub.2 or R.sub.1 and R.sub.3 may join to form a ring;R.sub.4, which may be in the para or meta position relative to the azo group, is an electron-withdrawing group selected from the group consisting of trifluoromethyl, cyano, halogen, and from alkoxycarbonyl, aryloxycarbonyl, acyloxy, carbonamido, sulfonamido, carbamoyl, sulfamoyl, alkylsulfonyl, arylsulfonyl, sulfonyloxy (--OSO.sub.3 R), alkoxysulfonyl, aryloxysulfonyl, and sulfoxide groups;R.sub.5 is hydrogen or, can be a chlorine in the meta position when R.sub.4 is a chlorine in the para position; andthe total number of carbon atoms in R.sub.1, R.sub.2, R.sub.3, and R.sub.Type: GrantFiled: April 28, 1995Date of Patent: July 2, 1996Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, James P. Merrill, Jeffrey W. Schmoeger, Jared B. Mooberry
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Patent number: 5478693Abstract: The present invention provides a diffusion transfer heat-developable color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and a nondiffusing dye-providing compound which releases or forms a diffusive dye in response to or in counter response to a reaction by which a silver halide is reduced to silver under the presence of a reducing agent, and an organic solid pigment in at least one of light-sensitive silver halide emulsion layer and the layer(s) adjacent thereto, and a method for forming a color image using the light-sensitive material.Type: GrantFiled: May 27, 1994Date of Patent: December 26, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroyuki Hirai
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Patent number: 5455150Abstract: A silver halide photographic negative has a red sensitive layer containing a coupler which reacts with oxidized color developer to form a cyan dye, a blue sensitive layer containing a coupler which reacts with oxidized color developer to form a yellow dye, and a green sensitive layer containing a coupler which reacts with oxidized color developer to form a magenta dye. The coupler in the green sensitive layer produces a magenta dye which has relatively low density in the 560-590 nm range as compared with magenta dyes produced by pyrazolotriazole type couplers or 1-phenyl-3-acylamino-5-pyrazolone couplers. The element additionally has an inert dye present, preferably positioned below the green sensitive layer containing the foregoing coupler. The inert dye has a peak absorption between 560-590 nm so that the negative has a ratio of density at 580 nm to density at 550 nm, both as measured at neutral midscale exposure, which is greater than exhibited by the element absent the inert dye.Type: GrantFiled: June 10, 1993Date of Patent: October 3, 1995Assignee: Eastman Kodak CompanyInventors: Jared B. Mooberry, Paul B. Merkel, Stephen P. Singer
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Patent number: 5395744Abstract: The invention relates to a color negative photographic recording material comprising a support bearing:at least one photographic layer comprising a sensitized tabular grain silver halide emulsion having an average aspect ratio greater than about 8;an image dye forming coupler;at least one color dye forming development inhibitor releasing coupler; andat least one distributed dye that absorbs light in the region of the spectrum to which said sensitized tabular grain silver halide emulsion having an aspect ratio greater than about 8 is sensitized wherein;the quantity of said at least one distributed dye is such as to reduce the sensitivity of the color record containing said sensitized tabular grain silver halide emulsion having an aspect ratio greater than about 8 by at least 20%; andthe quantity of said at least one development inhibitor releasing compound being greater than about 0.07 mole percent relative to the total quantity of sensitized silver halide emulsion in said at least one photographic layer.Type: GrantFiled: October 13, 1993Date of Patent: March 7, 1995Assignee: Eastman Kodak CompanyInventors: Allan F. Sowinski, Richard P. Szajewski, James P. Merrill
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Patent number: 5380634Abstract: The synthesis and the application of new dyes is described, said new dyes being incorporated in non-migratory state in hydrophilic colloid layers of photographic materials wherefrom they can be rapidly removed after being quickly decolourized in alkaline aqueous liquids used in the processing of said materials. The filter dyes have an ester function or a derivative therefrom as a substituent at the mono- or trimethine chain.Type: GrantFiled: September 10, 1993Date of Patent: January 10, 1995Assignee: Agfa-Gevaert, N.V.Inventors: Eric Kiekens, Paul Callant
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Patent number: 5370980Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support having thereon a hydrophilic colloidal layer comprising at least one silver salt of a compound having at least one acid group in the molecule, and the compound is represented by Formula I, Formula II or Formula III: ##STR1## wherein R.sup.1 and R.sup.2 independently represent a hydrogen atom or a group selected from the group consisting of an alkyl group, an alkenyl group, an aryl group and a heterocyclic residue; L.sub.1, L.sub.2, L.sub.3 and L.sub.4 independently represent a methine group; n.sub.1 is an integer of 0 to 3; n.sub.2 is an integer of 0, 1 or 2 and R.sup.3 represents an alkyl group or an alkenyl group. Q.sub.1 represents a non-metal atom group necessary to complete a 5-membered or 6-membered heterocyclic ring; ##STR2## wherein R.sup.4 and R.sup.Type: GrantFiled: October 21, 1993Date of Patent: December 6, 1994Assignee: Konica CorporationInventors: Taketoshi Yamada, Yasushi Usagawa, Akira Onishi, Yoshiko Ogawa, Shigeto Hirabayashi
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Patent number: 5324625Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises 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 layer, and at least one of the silver halide emulsion layers contains a silver salt of dye. The light-sensitive material has a raised sharpness, lowered fog and improved storage stability.Type: GrantFiled: July 7, 1992Date of Patent: June 28, 1994Assignee: Konica CorporationInventors: Shigeto Hirabayashi, Yasushi Usagawa, Yasuhiko Kawashima, Nobuaki Kagawa
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Patent number: 5298378Abstract: A photographic element is detailed which provides for improved resolution by decreasing the blue and ultraviolet radiation typically associated with internal scatter and print-through. These and other improvements are provided in a photographic element comprising a support having thereon at least one hydrophilic colloid layer, wherein at least one said hydrophilic colloid layer comprises a radiation sensitive silver halide emulsion layer, at least one said hydrophilic colloid layer comprises a filter dye consisting essentially of a compound with generic formula: ##STR1## wherein: A represents a counterion chosen from the set consisting of lithium, sodium, potassium, ammonium and alkylammonium of 1 to 15 carbons;Z represents the atoms chosen from the group consisting of carbon, sulfur, nitrogen, oxygen and selenium necessary to form an optionally substituted ring.Type: GrantFiled: March 19, 1993Date of Patent: March 29, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventor: Dietrich M. Fabricius
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Patent number: 5298379Abstract: A radiation detecting element, particularly a photographic element having a radiation detecting composition, in particular a silver halide emulsion. The composition provides the element with a wavelength of peak sensitivity, .lambda.peaksens, and a decreasing sensitivity around .lambda.peaksens. An absorber dye of defined characteristics is chosen, which has the effect of decreasing the change in sensitivity which the element otherwise has without the absorber dye (that is, the absorber dye increases the wavelength range over which the sensitivity is relatively constant). The element is preferably sensitive to infra-red.Type: GrantFiled: June 30, 1992Date of Patent: March 29, 1994Assignee: Eastman Kodak CompanyInventors: Anthony Adin, Richard L. Parton
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Patent number: H1593Abstract: A silver halide color photographic light-sensitive material is provided, comprising photographic component layers comprising a red-sensitive layer, a green-sensitive layer, a blue-sensitive layer and a nonlight-sensitive layer, and having an ISO speed of 320 to 800, wherein the total coating weight of silver in the component layers is within a range of 3.0 to 8.0 g/m.sup.2 ; a dry coating thickness is 22 .mu.m or less; and at least one of the component layers contains a dye in the form of a dispersion of solid particles dispersed in a binder.Type: GrantFiled: February 22, 1994Date of Patent: September 3, 1996Inventors: Hideaki Haraga, Masaru Iwagaki