And Containing Plural Layers Sensitive To The Same Spectral Region Patents (Class 430/506)
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Patent number: 6709796Abstract: Disclosed is a light sensitive photographic element suitable for image capture followed by machine reading to produce a single perspective two-dimensional color image, said element comprising a two-sided support (a) having disposed on one side of said support a red light sensitive silver halide emulsion layer unit, a green light sensitive silver halide emulsion layer unit, and a blue light sensitive silver halide emulsion layer unit, and (b) having disposed on the opposing side of said support a convergent micro-lens array located and sized to be sufficient to concentrate the image light of a single perspective of an image incident on an area of a micro-lens onto a smaller area of the emulsion layer units. Such elements provide improved latitude in image recording.Type: GrantFiled: June 12, 2002Date of Patent: March 23, 2004Assignee: Eastman Kodak CompanyInventors: Lyn M. Irving, Richard P. Szajewski
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Patent number: 6699652Abstract: 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 at least one of the dye image forming units contains layers of differing sensitivities, and the layer of highest sensitivity contains a development promoting agent or a specific coupler as described herein, or a combination thereof, and a 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 haType: GrantFiled: January 17, 2003Date of Patent: March 2, 2004Assignee: Eastman Kodak CompanyInventors: Sharon G. Johnston, Stephen P. Singer, Drake M. Michno, James A. Friday, David R. Foster
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Patent number: 6696232Abstract: A color negative photographic film element for producing a color image suited for conversion to an electronic form and subsequent reconversion into a viewable form: said element comprising a support and, coated on the support, a plurality of hydrophilic colloid layers, including radiation-sensitive silver halide emulsion layers, forming layer units for separately recording blue, green, and red exposures, each of the layer units containing dye image-forming coupler chosen to produce image dye having an absorption half-peak bandwidth lying in a different spectral region in each layer unit, WHEREIN the element comprises a development inhibitor releasing compound in at least one layer unit, at least one of the layer units contains two or more emulsion layers differing in sensitivity, the layer units each exhibit a dye image gamma of less than 1.0, the element exhibits an exposure latitude of at least 2.Type: GrantFiled: December 20, 2001Date of Patent: February 24, 2004Assignee: Eastman Kodak CompanyInventor: Allan F. Sowinski
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Patent number: 6686136Abstract: A color negative photographic element especially suited for preloading in a one-time-use camera is disclosed. The element is capable of producing images that, when developed, converted to electronic form, and then converted to a viewable form, exhibit excellent color, reduced granularity, and improved sharpness. The photographic elements contain blue, green, and red recording layer units capable of forming spectrally differentiated dye images. The layer units are substantially free of colored masking coupler, and each exhibits a dye image gamma of less than 1.5. The element exhibits an exposure latitude of at least 2.7 log E. The gamma ratios of the blue, green, and red recording layer units are between 0.80 and 1.2. Chemical processing of the element is also disclosed.Type: GrantFiled: June 25, 1998Date of Patent: February 3, 2004Assignee: Eastman Kodak CompanyInventors: Allan F. Sowinski, Richard P. Szajewski, Lois A. Buitano, Frank R. Brockler, John D. Buhr
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Publication number: 20040018454Abstract: A silver halide color photosensitive material comprising at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, on a support. The photosensitive material has an indicated speed of 800 or higher, and an ISO speed of 1.25 times the indicated speed or higher.Type: ApplicationFiled: July 16, 2003Publication date: January 29, 2004Inventors: Takeichi Tatsuta, Yoichi Suga, Kohzaburoh Yamada
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Publication number: 20040002023Abstract: A color negative photographic film element for producing a color image suited for conversion to an electronic form and subsequent reconversion into a viewable form:Type: ApplicationFiled: December 20, 2001Publication date: January 1, 2004Applicant: Eastman Kodak CompanyInventor: Allan F. Sowinski
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Patent number: 6656674Abstract: A photographic element which comprises a support bearing: (i) a first radiation-sensitive silver halide emulsion image-forming layer comprising a high bromide tabular grain emulsion including tabular grains having {111} major faces, exhibiting an average thickness of at least 0.07 &mgr;m and an average aspect ratio of at least 2; and (ii) a second radiation-sensitive silver halide emulsion image-forming layer comprising an ultrathin tabular grain emulsion including tabular grains having {111} major faces, containing greater than 70 mole percent bromide and at least 0.25 mole percent iodide, exhibiting an average thickness of less than 0.07 &mgr;m and an average equivalent circular diameter of at least 0.Type: GrantFiled: December 21, 2001Date of Patent: December 2, 2003Assignee: Eastman Kodak CompanyInventors: Tommie L. Royster, Jr., John E. Keevert, Jr., Sharon G. Johnston, Donald L. Black, David W. Sandford
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Publication number: 20030211408Abstract: The invention relates to an apparatus for thermal development having a receiver for receiving an imagewise exposed thermal film, an accumulator for gathering the film, a drive for advancing the film from the receiver to the accumulator, a heater located between the receiver and the accumulator for developing the film, a compound image scanner for scanning the film after it has been thermally developed, the scanner having a first light source and a first sensor placed for forming a first electronic record of the image formed on the developed film by reflection, a second light source and a second sensor placed for forming a second electronic record of the image by an opposing reflection, and a third sensor and a third light source placed for forming a third electronic record of the image formed by transmission, and a lighttight container for the receiver and the heater.Type: ApplicationFiled: May 21, 2003Publication date: November 13, 2003Inventors: Richard P. Szajewski, Mark E. Irving
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Patent number: 6645710Abstract: A silver halide color photographic light-sensitive material comprising, on a support, a unit blue-sensitive silver halide emulsion layer, unit green-sensitive silver halide emulsion layer, and unit red-sensitive silver halide emulsion layer, each of which includes not less than two color-sensitive layers differing in sensitivity, wherein tabular grains having an aspect ratio of not less than 5.0 account for not less than 60% of the total projected area of silver halide grains contained in an emulsion layer having the highest sensitivity in each unit color-sensitive layer, and a grain number indicated by specific equation is not more than 1.00.Type: GrantFiled: August 24, 2001Date of Patent: November 11, 2003Inventors: Ryoji Nishimura, Yasushi Nozawa
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Patent number: 6641987Abstract: Disclosed is a silver halide color photographic light-sensitive material including at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one blue-sensitive silver halide emulsion layer on a support, and having an ISO sensitivity of 640 or more, wherein the material exhibits a color saturation evaluation value &eegr;, represented by equation (I) below, of −15 dB or more. &eegr;=10 log(1/VT) [VT=(⅙)×((62−Y1)2+(62−Y2)2+(62−Y3)2+(62−Y4)2+(62−Y5)2+(62−Y6)2)] (I) In Formula (I), each of Y1 to Y6 is a value obtained by exposing 12 colors of a Macbeth color chart with six exposure amounts, from −1 under to +4 over, measuring the saturation of each resultant color, and averaging the data (chroma values) for a corresponding exposure amount.Type: GrantFiled: March 29, 2001Date of Patent: November 4, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoichi Suga, Hideto Ikoma, Jun Okamoto
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Patent number: 6641973Abstract: The invention relates to an imaging member comprising a duplitized imaging layer and a support comprising at least one layer comprising an inorganic particle having an aspect ratio of at least 10 to 1, a lateral dimension of from 0.01 &mgr;m to 5 &mgr;m, and a vertical dimension from 0.5 nm to 10 nm, and polymeric resin matrix.Type: GrantFiled: October 7, 2002Date of Patent: November 4, 2003Assignee: Eastman Kodak CompanyInventors: Narasimharao Dontula, Robert P. Bourdelais, Debasis Majumdar, Cheryl J. Kaminsky
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Patent number: 6623896Abstract: Disclosed is a light sensitive photographic element comprising a support, a convergent micro-lens array, and an interposed light sensitive silver halide emulsion layer unit. Also disclosed is a camera combination and imaging method. Embodiments of the invention provide improved sensitivity and latitude in scene exposure range.Type: GrantFiled: June 12, 2002Date of Patent: September 23, 2003Assignee: Eastman Kodak CompanyInventors: Richard P. Szajewski, Lyn M. Irving
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Patent number: 6620580Abstract: Disclosed is a photographic element comprising a support bearing a blue light sensitive record containing at least three layers having different levels of light sensitivity arranged in the order slowest to fastest with the slowest layer closest to the support and the fastest layer closest to the light exposure source, wherein (a) all of the blue-sensitive layers are closer to the light exposure source than the layers sensitive to any other color; (b) the slowest blue light sensitive layer is at least 1.0 log E slower than the next fastest blue light sensitive layer when measured at a density of 0.15 above Dmin, and contains a particular type of cyan dye-forming development inhibitor releasing (DIR) coupler; and (c) all of the blue light sensitive layers other than the slowest blue light sensitive layer independently contain a certain type of yellow dye-forming DIR coupler. Embodiments of the invention provide improved color rendition without sacrificing blue density.Type: GrantFiled: November 14, 2001Date of Patent: September 16, 2003Assignee: Eastman Kodak CompanyInventors: Norma B. Platt, Drake M. Michno
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Patent number: 6613501Abstract: A silver halide photographic material is disclosed comprising a blue-sensitive silver halide unit containing a yellow coupler, a green-sensitive silver halide unit containing magenta coupler, and a red-sensitive silver halide unit containing a cyan coupler, wherein a coefficient of utilization of an oxidation product of a color developing agent in a maximum density area of the blue-sensitive unit is not less than 80%, that of the green-sensitive unit is 30 to 75% and that of the red-sensitive unit is not less than 80%.Type: GrantFiled: September 10, 2001Date of Patent: September 2, 2003Assignee: Konica CorporationInventors: Fumie Fukazawa, Tsukasa Ito
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Publication number: 20030143498Abstract: Disclosed is a photographic element comprising a support bearing a blue light sensitive record containing at least three layers having different levels of light sensitivity arranged in the order slowest to fastest with the slowest layer closest to the support and the fastest layer closest to the light exposure source, wherein (a) all of the blue-sensitive layers are closer to the light exposure source than the layers sensitive to any other color; (b) the slowest blue light sensitive layer is at least 1.0 logE slower than the next fastest blue light sensitive layer when measured at a density of 0.15 above Dmin, and contains a particular type of cyan dye-forming development inhibitor releasing (DIR) coupler; and (c) all of the blue light sensitive layers other than the slowest blue light sensitive layer independently contain a certain type of yellow dye-forming DIR coupler. Embodiments of the invention provide improved color rendition without sacrificing blue density.Type: ApplicationFiled: November 14, 2001Publication date: July 31, 2003Applicant: Eastman Kodak CompanyInventors: Norma B. Platt, Drake M. Michno
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Publication number: 20030087209Abstract: A silver halide color reversal photographic material comprises, on a transparent support, at least one each of blue-, green-, and red-sensitive emulsion layer units. The lightsensitive material further has means for regulating an interimage effect.Type: ApplicationFiled: March 18, 2002Publication date: May 8, 2003Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Masayuki Kuramitsu, Minoru Sato
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Patent number: 6537740Abstract: A silver halide color negative photographic lightsentive material comprises at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer on a support. The lightsensitive material has an ISO speed of 640 or more, the total silver content of 3.0 to 9.0 g/m2. Each of the red-sensitive emulsion layer, green-sensitive emulsion layer and blue-sensitive emulsion layer comprises two or more silver halide emulsion sub-layers having the same color sensitivity but different in speed to each other, and each of the red-sensitive sub-layer having the highest speed, green-sensitive sub-layer having the highest speed and blue-sensitive emulsion sub-layer having the highest speed has a silver content of 0.3 to 1.3 g/m2.Type: GrantFiled: September 15, 2000Date of Patent: March 25, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Norihiro Omae, Shunichi Aida
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Patent number: 6518005Abstract: The present invention refers to photographic elements having, coated on a support base, at least one silver halide emulsion layer sensitized to a radiation different from the blue one in addition to its intrinsic sensitivity to the blue region, and a yellow filter layer positioned between said at least one silver halide emulsion layer and the exposure source, where such yellow filter layer contains a yellow filtering dye represented by the formula (1): wherein R and R1 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted aryl group; R2, R3 and R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group and R3 and R4 may be combined to form a 6-membered ring.Type: GrantFiled: June 8, 2001Date of Patent: February 11, 2003Assignee: Ferrania, S.p.A.Inventors: Piero Cavalleri, Raffaella Biavasco, Stefano Parodi
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Patent number: 6511796Abstract: The invention provides a multilayer silver halide color photographic element comprising a support having coated thereon at least two red-sensitive silver halide emulsion layers having different sensitivity to red light, characterized in that the most sensitive of said red-sensitive silver halide emulsion layers comprises a core-shell silver bromoiodide tabular emulsion having a pure bromide core, a total silver iodide content lower than 10% and an aspect ratio higher than 4.Type: GrantFiled: May 21, 2001Date of Patent: January 28, 2003Assignee: Ferrania S.p.A.Inventors: Giuseppe Rocca, Antonio Poggi, Simona Fava
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Publication number: 20020177087Abstract: A silver halide photographic lightsensitive material comprising at least one silver halide photographic emulsion layer containing a silver halide photographic emulsion prepared by mixing a dispersion of silver halide grains, the silver halide grains exhibiting such spectral absorption maximum wavelength and light absorption intensity that, when the spectral absorption maximum wavelength is less than 500 nm, the light absorption intensity is 60 or more, while when the spectral absorption maximum wavelength is 500 nm or more, the light absorption intensity is 100 or more, with an emulsified dispersion, wherein the silver halide photographic emulsion, when agitated at 40° C. for 30 min, exhibits a variation of absorption spectrum integrated intensity ranging from 400 nm to 700 nm of 10% or less.Type: ApplicationFiled: August 28, 2001Publication date: November 28, 2002Inventors: Masami Sakurada, Kiyoshi Morimoto, Fumitaka Ueda, Toru Yamada
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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: 6455242Abstract: Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound. The invention provides improved light sensitivity.Type: GrantFiled: September 18, 2001Date of Patent: September 24, 2002Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Bernard A. Clark, John D. Goddard, Louis E. Friedrich, James A. Friday, Stephen P. Singer, Marcello Vitale
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Publication number: 20020106592Abstract: Disclosed is a color photographic element comprising a multilayered blue light sensitive record, a multilayered green light sensitive record, and a multilayered red light sensitive record, the red record comprising two or more layers of differing light sensitivity, the most light sensitive layer of the red record containing a red light sensitized first emulsion having at least one wavelength of peak absorption, and at least one of the two most light sensitive layers of the red record containing a red sensitized second emulsion, wherein the first emulsion exhibits, as measured at 0.2 density units above Dmin, at least one wavelength of peak absorption that is longer than the shortest wavelength of peak absorption of the second emulsion. The element provides an advantageous combination of speed and color rendition.Type: ApplicationFiled: December 6, 2000Publication date: August 8, 2002Applicant: Eastman Kodak CompanyInventors: Sharon R. Lunt, John F. Sawyer, Mitchell M. Lin
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Patent number: 6423482Abstract: Disclosed is a color photographic element comprising a multilayered blue light sensitive record, a multilayered green light sensitive record, and a multilayered red light sensitive record, the red record comprising two or more layers of differing light sensitivity, the most light sensitive layer of the red record containing a red light sensitized first emulsion having at least one wavelength of peak absorption, and at least one of the two most light sensitive layers of the red record containing a red sensitized second emulsion, wherein the first emulsion exhibits, as measured at 0.2 density units above Dmin, at least one wavelength of peak absorption that is longer than the shortest wavelength of peak absorption of the second emulsion. The element provides an advantageous combination of speed and color rendition.Type: GrantFiled: December 6, 2000Date of Patent: July 23, 2002Assignee: Eastman Kodak CompanyInventors: Sharon R. Lunt, John F. Sawyer, Mitchell M. Lin
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Patent number: 6406837Abstract: This invention relates to an imaging element comprising a transparent polymer sheet, and at least one photosensitive dye forming coupler containing layer is on each side of said sheet, wherein there are at least four separate photosensitive layers and the photosensitive layers comprise at least four dye forming couplers that form at least four spectrally distinct colors.Type: GrantFiled: September 18, 2000Date of Patent: June 18, 2002Assignee: Eastman Kodak CompanyInventors: James L. Edwards, Peter T. Aylward, Alphonse D. Camp, Robert P. Bourdelais
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Patent number: 6403292Abstract: The invention relates to a photographic element comprising a base material, at least one exposure side photosensitive silver halide layer, and at least one backside photosensitive silver halide layer, wherein said face side photosensitive layer has lower speed than said backside photosensitive layer, and wherein said base material has a percent transmission of between 35 and 60%.Type: GrantFiled: December 6, 2000Date of Patent: June 11, 2002Assignee: Eastman Kodak CompanyInventors: John L. Pawlak, Gary J. McSweeney, Jerzy Z. Mydlarz, Jerzy A. Budz, Eric L. Bell, Alphonse D. Camp, Robert P. Bourdelais, Peter T. Aylward
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Patent number: 6399289Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising, on a support, a unit blue-sensitive layer including at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, a unit green-sensitive layer including at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and a unit red-sensitive layer including at least one red-sensitive silver halide emulsion layer containing a cyan coupler, at least one of the unit blue-, green-, and red-sensitive layers comprising not less than two color-sensitive layers differing in sensitivity, of which a highest-sensitivity layer being positioned farthest from the support, wherein the light-sensitive material has at least one layer containing a high-boiling organic solvent, at least 50% by weight of which is occupied by a high-boiling organic solvent having a viscosity of not less than 300 mPas at 25° C.Type: GrantFiled: September 28, 2000Date of Patent: June 4, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Junichiro Hosokawa, Hisashi Mikoshiba, Yasuhiro Kato
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Publication number: 20020058214Abstract: A silver halide photographic material is disclosed, comprising a support having provided thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer contains, in the dispersion medium phase of the emulsion, one or more kinds of inorganic fine particles having a refractive index the total weight of the fine particles contained in the unit volume of the dispersion medium phase is from 1.0 to 95 wt %, the dispersion medium phase containing the fine particles is substantially transparent to the photosensitive peak wavelength light of the emulsion layer, and the photographic material is exposed and processed in the development process comprising at least a developing step and a fixing step.Type: ApplicationFiled: January 6, 2000Publication date: May 16, 2002Inventors: Mitsuo Saitou, Yoichi Maruyama, Toshiyuki Nabeta, Masaaki Miki, Keiichi Miyazaki, Mikio Ihama, Shunji Takada, Norihiro Omae, Yasushi Tanabe
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Publication number: 20020055073Abstract: A silver halide color photographic light-sensitive material comprising, on a support, a unit blue-sensitive silver halide emulsion layer, unit green-sensitive silver halide emulsion layer, and unit red-sensitive silver halide emulsion layer, each of which includes not less than two color-sensitive layers differing in sensitivity, wherein tabular grains having an aspect ratio of not less than 5.0 account for not less than 60% of the total projected area of silver halide grains contained in an emulsion layer having the highest sensitivity in each unit color-sensitive layer, and a grain number indicated by specific equation is not more than 1.00.Type: ApplicationFiled: August 24, 2001Publication date: May 9, 2002Inventors: Ryoji Nishimura, Yasushi Nozawa
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Patent number: 6368759Abstract: The invention relates to an imaging element comprising a transparent polymer sheet, and at least one photosensitive dye forming coupler containing layer is on each side of said transparent sheet, wherein there are at least four separate photosensitive layers and the photosensitive layers comprise at least four dye forming couplers that form at least four spectrally distinct colors, and wherein said imaging element is adhered to a transmissive polymer sheet that has a spectral transmissiveness of greater than 15 and less than 90%.Type: GrantFiled: September 18, 2000Date of Patent: April 9, 2002Assignee: Eastman Kodak CompanyInventors: Robert P. Bourdelais, Peter T. Aylward, Alphonse D. Camp, James L. Edwards
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Patent number: 6368758Abstract: This invention relates to a decorative package comprising a package having adhered thereto a label comprising a transparent polymer sheet, and at least one dye containing layer is on each side of said sheet, wherein there are at least four separate dye containing layers and the dye containing layers comprise at least four spectrally distinct colors.Type: GrantFiled: September 18, 2000Date of Patent: April 9, 2002Assignee: Eastman Kodak CompanyInventors: Alphonse D. Camp, James L. Edwards, Robert P. Bourdelais, Peter T. Aylward
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Publication number: 20020031735Abstract: The present invention refers to photographic elements having, coated on a support base, at least one silver halide emulsion layer sensitized to a radiation different from the blue one in addition to its intrinsic sensitivity to the blue region, and a yellow filter layer positioned between said at least one silver halide emulsion layer and the exposure source, where such yellow filter layer contains a yellow filtering dye represented by the formula (1): 1Type: ApplicationFiled: June 8, 2001Publication date: March 14, 2002Applicant: Ferrania, S.P.A.,Inventors: Piero Cavalleri, Raffaella Biavasco, Stefano Parodi
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Publication number: 20020031734Abstract: A colour 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 thatType: ApplicationFiled: July 19, 2001Publication date: March 14, 2002Inventors: Klaus Wagner, Heinz Schtz, Peter Bell, Lothar Endres, Detlev Kapitza, Thomas Stetzer
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Publication number: 20020031731Abstract: A method for processing a silver halide color photographic light-sensitive material. The material has, on a support, at least one light-sensitive silver halide emulsion layer comprising a light-sensitive silver halide emulsion, a compound that forms a dye by a coupling reaction with a developing agent in an oxidized form, and a binder. The method comprises processing the light-sensitive material such that a silver density of the at least one light-sensitive silver halide emulsion layer during development is 4×105 g/m3 or more.Type: ApplicationFiled: June 8, 2001Publication date: March 14, 2002Inventor: Junichiro Hosokawa
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Publication number: 20020028414Abstract: A silver salt photothermographic material is disclosed, comprising at least a light sensitive layer and at least a light insensitive layer, the light sensitive layer comprising organic silver salt grains, a light sensitive emulsion containing light sensitive silver halide grains and medium, a reducing agent and a binder, wherein at least one of the light sensitive layer and the light insensitive layer contains a silver-saving agent and the photothermographic material which has been subjected to thermal development at 123° C. for 13.5 sec. exhibits an average contrast of 2.0 to 6.0 within the density range of 0.25 to 2.0 on a characteristic curve of the photothermographic material.Type: ApplicationFiled: June 21, 2001Publication date: March 7, 2002Inventors: Hiroyuki Yanagisawa, Socmen Ho Kimura
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Patent number: 6350564Abstract: Disclosed is a color silver halide photographic element comprising a support bearing: (1) a light sensitive silver halide emulsion layer; (2) a nitrogen heterocycle with a minimum of three heteroatoms that does not react with oxidized developer, does not contain free thiol substituents, and has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound, said heterocycle compound located either in said light sensitive layer or in a layer adjacent to it; and (3) a light reflecting silver halide material; provided that the heterocycle compound and the light reflecting material are located either (a) in different layers of the element located close enough to each other so that a super-additive speed increase is realized or (b) in the same light sensitive layer. The invention provides improved light sensitivity.Type: GrantFiled: October 17, 2000Date of Patent: February 26, 2002Assignee: Eastman Kodak CompanyInventors: Joseph F. Bringley, James A. Friday, Stephen P. Singer, Marcello Vitale
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Patent number: 6350565Abstract: A color photographic element containing a support bearing: (a) a red record comprising, in order from the support, a less and a more red light sensitive silver halide emulsion layer, each having associated therewith at least one cyan dye-forming coupler; (b) further from the support a green record comprising, in order from the support, a less and a more green light sensitive silver halide emulsion layer, each having associated therewith at least one magenta dye-forming coupler, and (c) still further from the support, a blue record comprising in order from the support, a less and a more blue light sensitive silver halide emulsion layer, each having associated therewith at least one yellow dye-forming coupler; wherein: (d) there is located below and only below the most red light sensitive layer of the red record a relatively non-light sensitive “small 3-D emulsion layer” that is substantially free of red light absorbing dye.Type: GrantFiled: October 17, 2000Date of Patent: February 26, 2002Assignee: Eastman Kodak CompanyInventors: Joseph F. Bringley, James A. Friday, Marcello Vitale
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Patent number: 6346368Abstract: A silver halide color reversal photographic material is disclosed, comprising a support having thereon a blue-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, a green-sensitive silver halide emulsion layer containing a magenta dye-forming coupler and a red-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, wherein a RMS value at a density of 0.8 of the red-sensitive layer is within a range of 20 to 90% of a RMS value at a density of 0.8 of the green-sensitive layer.Type: GrantFiled: July 21, 2000Date of Patent: February 12, 2002Assignee: Konica CorporationInventor: Yasushi Irie
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Publication number: 20020015923Abstract: The invention provides a multilayer silver halide color photographic element comprising a support having coated thereon at least two red-sensitive silver halide emulsion layers having different sensitivity to red light, characterized in that the most sensitive of said red-sensitive silver halide emulsion layers comprises a core-shell silver bromoiodide tabular emulsion having a pure bromide core, a total silver iodide content lower than 10% and an aspect ratio higher than 4.Type: ApplicationFiled: May 21, 2001Publication date: February 7, 2002Applicant: TulalipInventors: Giuseppe Rocca, Antonio Poggi, Simona Fava
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Publication number: 20020009681Abstract: A silver halide photographic lightsensitive material comprises at least one lightsensitive silver halide emulsion layer on a support. The lightsensitive material exhibits a speed at 3×10−9 sec exposure time being lower than a speed at 10−5 sec exposure time by 30 or more in terms of speed unit.Type: ApplicationFiled: March 29, 2001Publication date: January 24, 2002Inventor: Naoharu Kiyoto
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Patent number: 6338940Abstract: A silver halide photographic light sensitive material IS DISCLOSED, comprising a support having thereon a yellow dye image forming layer, a magenta dye image forming layer and a cyan dye image forming layer, wherein when the photographic material is subjected to exposure of not more than 10−3 sec. per pixel element and further to color developing to form yellow, magenta and cyan images, a variation at multiple exposure, based on non-multiple exposure, of an average gradation, which is a slope that connects two pints corresponding to densities of 0.5 and 1.5 on a characteristic curve of each of the yellow, magenta and cyan images, is not more than 10%.Type: GrantFiled: June 11, 1999Date of Patent: January 15, 2002Assignee: Konica CorporationInventors: Kazuhiro Miyazawa, Junji Ito, Yumiko Nimura, Shinichi Suzuki, Makoto Kaga, Shuji Murakami
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Patent number: 6337177Abstract: Disclosed is a silver halide color photographic material comprising a support, photosensitive silver halide emulsion layers grouped into at least three units according to their color sensitivities, each of which comprises a blue-sensitive, green-sensitive or red-sensitive silver halide emulsion, a color developing agent and a coupler, and a light-insensitive layer, wherein the photographic material has a total silver coverage of at most 5.0 g/m2, and at least one emulsion comprised in the highest-speed emulsion layer of at least one of each unit is a tabular silver halide emulsion that comprises tabular silver halide grains having an average thickness of from 0.05 to 0.20 &mgr;m.Type: GrantFiled: September 3, 1999Date of Patent: January 8, 2002Assignee: Fuji Photo Film Co., Ltd.Inventor: Makoto Kikuchi
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Publication number: 20010055735Abstract: 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: ApplicationFiled: April 19, 2001Publication date: December 27, 2001Inventor: Katsuhiko Heki
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Patent number: 6322959Abstract: A silver halide color photographic lightsensitive material comprises a support and, superimposed thereon, a yellow color-forming blue-sensitive emulsion layer, a magenta color-forming green-sensitive emulsion layer containing a magenta coupler represented by a general formula (MC-1): and a cyan color-forming red-sensitive emulsion layer containing a cyan coupler represented by a general formula (NC-1):Type: GrantFiled: July 17, 2000Date of Patent: November 27, 2001Assignee: Fuji Photo Film Co., Ltd.Inventor: Naoto Matsuda
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Patent number: 6319660Abstract: Disclosed is a color photographic element comprising at least one of (1) a light sensitive silver halide emulsion layer and (2) a non-silver containing light insensitive layer, said at least one layer containing a compound with a minimum of three heteroatoms that does not react with oxidized developer and that has a ClogP sufficient to increase the photographic speed of said element compared to the same element without the compound. The invention provides improved light sensitivity.Type: GrantFiled: July 21, 1999Date of Patent: November 20, 2001Assignee: Eastman Kodak CompanyInventors: Philip A. Allway, Bernard A. Clark, John D. Goddard, Louis E. Friedrich, James A. Friday, Stephen P. Singer, Marcello Vitale
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Patent number: 6296994Abstract: A color photographic element particularly useful for colorimetrically accurate recording of scene exposures is disclosed, which is capable of producing differentiable dye images suitable for scanning and electronic image processing. The element has red, green and blue light recording silver halide emulsion layer units and provides broad, hypsochromic green spectral sensitivity that overlaps with the red spectral sensitivity. The wavelength of maximum sensitivity of the red recording emulsion layer unit is between about 580 and 620 nm, the wavelength of maximum sensitivity of the green recording emulsion layer unit is between about 520 and 565 nm, the relative sensitivity of the green recording emulsion layer unit at 50% of the maximum sensitivity exhibits an overall breadth of at least about 65 nm, and the relative sensitivity of the green recording emulsion layer unit at 520 nm is at least 60% of the maximum.Type: GrantFiled: March 1, 1999Date of Patent: October 2, 2001Assignee: Eastman Kodak CompanyInventors: Allan F. Sowinski, Lois A. Buitano, Steven G. Link
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Patent number: 6291144Abstract: This invention relates to an imaging element comprising a translucent polymer sheet, and at least three photosensitive dye forming coupler containing layers on the face side of said sheet, wherein said at least three photosensitive forming coupler containing layers comprise a cyan dye forming layer comprising a cyan dye forming coupler in combination with a red sensitized photosensitive emulsion, a yellow dye forming layer comprising a yellow dye forming coupler in combination with a blue light sensitive photosensitive emulsion, a magenta dye forming layer comprising a magenta dye forming coupler and a green light sensitive photosensitive emulsion, and on the backside of said translucent polymer sheet at least one dye forming coupler that forms at least one dye that is spectrally distinct from the dyes on the face side of said translucent sheet.Type: GrantFiled: September 18, 2000Date of Patent: September 18, 2001Assignee: Eastman Kodak CompanyInventors: Peter T. Aylward, Robert P. Bourdelais, James L. Edwards, Alphonse D. Camp
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Patent number: 6268116Abstract: The invention relates to a multilayer photographic element comprising a reflective support wherein the color record 1 adjacent to the support comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; and wherein color record 2 above said color record 1 comprises at least one light sensitive layer and at least two non-light sensitive dye-forming interlayers and wherein color record 3 comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; an optional UV dye containing interlayer and a top overcoat; and wherein each interlayer is completely or substantially scavenger free, silver halide grains comprising greater than 90% silver chloride, and wherein the reciprocity characteristics of the silver halide grains are such that for a separation exposure of 1 microsecond and 0.4 sec, each color record develops to a density of at least 2.0 within a log exposure range of 1.2 or less relative to the exposure point producing a density 0.Type: GrantFiled: December 27, 1999Date of Patent: July 31, 2001Assignee: Eastman Kodak CompanyInventors: Michael R. Roberts, Gary J. McSweeney, Alphonse D. Camp
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Publication number: 20010008749Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layers, wherein at least one of the silver halide emulsion layers contains a coupler represented by the following formula: 1Type: ApplicationFiled: December 8, 2000Publication date: July 19, 2001Inventors: Osamu Ishige, Emiko Kataoka, Hiroyuki Hoshino
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Patent number: 6258494Abstract: This invention relates to a photographic element comprising a transparent sheet having a developed photographic image on each side, adhesively connected to a reflective base.Type: GrantFiled: December 22, 1999Date of Patent: July 10, 2001Assignee: Eastman Kodak CompanyInventors: Robert P. Bourdelais, Peter T. Aylward, Alphonse D. Camp