Filter Layer Containing Patents (Class 430/507)
  • Patent number: 5523197
    Abstract: In order to provide a direct-positive material having low contrast and extended latitude that can be manufactured in a consistent and reproducable way a multilayer direct-positive photographic material is disclosed as well as the process to provide it, characterized by the steps of coating on one side of a support at least two layers of direct positive silver halide emulsions of the externally fogged type, at least one layer of which comprises a mixture of direct positive silver halide emulsions of the externally fogged type and at least one layer of which comprises one or more filter dyes; overcoating said emulsion layers with at least one protective layer; coating on the other side of the support at least one backing layer.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: June 4, 1996
    Assignee: Agfa-Gevaert, N.V.
    Inventor: Luc Heremans
  • Patent number: 5508149
    Abstract: A silver halide color photographic light-sensitive material for use in preparing a color proof image from a halftone image information is provided, comprising a support having thereon blue-sensitive, green-sensitive and red-sensitive silver halide emulsion layers, in which at least one of the silver halide emulsion layers comprises silver halide grains having a silver chloride content of not less than 80 mol % and of which the reflection densities, when unprocessed, at wavelengths of 450, 550 and 700 nm each are not less than 0.8.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: April 16, 1996
    Assignee: Konica Corporation
    Inventors: Satoshi Masumi, Shun Takada
  • Patent number: 5500332
    Abstract: An ultraviolet absorbing compound of formula (I) below, and photographic elements containing such a compound as an ultraviolet absorber: ##STR1## wherein: R.sub.4 is H or an alkyl group, and the benzo or phenyl ring shown may be further substituted or unsubstituted;X is --C(O)O-- wherein the carbonyl carbon is bonded to the N of NR.sub.4, or X is --SO.sub.2 --;L is a bivalent linking group;p is 0 or 1;A* is an alkyl group having an asymmetric carbon or silicon atom, and;wherein the ultraviolet absorbing compound of formula (I) is a mixture of two enantiomers about the asymmetric carbon or silicon of A*.
    Type: Grant
    Filed: April 26, 1995
    Date of Patent: March 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Lal C. Vishwakarma, Glenn Brown
  • Patent number: 5489503
    Abstract: Novel UV absorbers of the bis- or tris-2'-hydroxyphenyltriazine type and their use in photographic materials, inks or recording materials for ink-jet printing, and surface coatings are described which conform to the formula ##STR1## in which the radicals R.sub.1 and R.sub.9 are as defined in claim 1.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: February 6, 1996
    Assignee: Ciba-Geigy Corp.
    Inventor: Vien V. Toan
  • Patent number: 5482820
    Abstract: There is disclosed a light-sensitive silver halide photographic element comprising at least one hydrophilic colloid layer containing a dihalogenonitriloacylamino compound in combination with a phenolic biocide.
    Type: Grant
    Filed: February 3, 1995
    Date of Patent: January 9, 1996
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Luigi Cellone, Franco Leoncini
  • Patent number: 5478693
    Abstract: 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: Grant
    Filed: May 27, 1994
    Date of Patent: December 26, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Hirai
  • Patent number: 5478708
    Abstract: The synthesis and the application of new dyes is described. In particular said new dyes can be incorporated in non-migratory state in hydrophilic colloid layers of photographic materials wherefrom they can be rapidly removed after being quickly decolorized in alkaline aqueous liquids used in the processing of said materials. In photographic applications dyes of the general formula (I) are provided with at least one ionizable group which permits solubilization in aqueous and/or alkaline medium.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: December 26, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Eric Kiekens, Paul Callant
  • Patent number: 5466560
    Abstract: This invention relates to cameras designed for single or limited use. It more particularly relates to cameras that are intended for one use, after which they are recycled, subsequent to removal of the film for development and printing or scanning. The camera and film combinations provide exceptionally sharp images.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: November 14, 1995
    Assignee: Eastman Kodak Company
    Inventors: Allan F. Sowinski, Richard P. Szajewski, James P. Merrill
  • Patent number: 5464733
    Abstract: Disclosed is a multilayer color photographic element comprising a support having coated thereon photographic silver halide emulsion layers, the layers including blue sensitive, green sensitive and red sensitive layers, the photographic element comprising at least one of a bleach accelerating releasing coupler and a bleach accelerating silver salt in at least one layer of the photographic element and a layer containing finely divided silver. An interlayer is disposed between the layer containing finely divided silver and a layer containing dye forming coupler.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: November 7, 1995
    Assignee: Eastman Kodak Company
    Inventor: James A. Friday
  • Patent number: 5462846
    Abstract: Disclosed is a silver halide color photographic material having at least one non-coloring layer. The layer contains (i) at least one water-insoluble polymer having a number average molecular weight of less than 2000, which is obtained obtained by polymerizing at least one monomer having an aromatic group, and optionally contains (ii) at least one UV absorbent selected from 2-(2'-hydroxyphenyl)benzotriazoles, benzophenones and triazines and (iii) at least one high boiling point organic solvent having a refractive index of 1.50 or less. The photographic material has high light fastness.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: October 31, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Yoneyama
  • Patent number: 5460930
    Abstract: A photographic element comprising a cyan dummy dye present in the element prior to exposure and development, the dye having the formula: ##STR1## wherein: R1 is an alkoxy group, a phenoxy group or a halogen;R2 is selected from the group consisting of an alkyl group, a phenyl group; a halogen when R1 is an alkoxy or phenoxy group; an alkoxy carbonyl group of formula --COOR7; a carbonamido group of formula --NR8COR7; and hydrogen, when R1 is a branched or substituted alkoxy or a substituted phenoxy;R3 is hydrogen or an alkyl group;R4 is hydrogen, or an alkyl group;R5 is hydrogen or an alkyl group;R6 is an alkyl group.R7 is an alkyl group or a phenyl group;R8 is hydrogen or an alkyl group.Dummy dyes of the above specified type are advantageous in elements of the present invention in having good hues, good resistance to fading in weak or seasoned bleach solutions, and having good resistance to hue and density changes in cold storage.
    Type: Grant
    Filed: October 28, 1993
    Date of Patent: October 24, 1995
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Jerrold N. Poslusny, Robert J. Ross
  • Patent number: 5457014
    Abstract: Melt crystallization of a photographic composition containing dispersed particles of a filter dye and dispersed particles of oxidized developer scavenger, in particular a hydrazide or a disulfonamidophenol oxidized developer scavenger, is inhibited by dispersing the oxidized developer scavenger in the composition in the form of particles comprising the oxidized developer scavenger dispersed or dissolved in an organic solvent selected such that the following relationship is satisfied:6.65+10.0 A-1.53 B+0.11 B.sup.2 -0.99 AB.ltoreq.4.0wherein A is the weight ratio of organic solvent to oxidized developer scavenger; and B is the log P of the organic solvent.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: October 10, 1995
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Glenn M. Brown, John B. Rieger
  • Patent number: 5455150
    Abstract: 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: Grant
    Filed: June 10, 1993
    Date of Patent: October 3, 1995
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, Paul B. Merkel, Stephen P. Singer
  • Patent number: 5447831
    Abstract: The invention provides a silver halide color negative photographic element comprising a red sensitive silver halide emulsion layer containing a coupler which reacts with oxidized color developer to form a cyan dye, a blue sensitive silver halide emulsion layer containing a coupler which reacts with oxidized color developer to form a yellow dye, and a green sensitive silver halide emulsion layer containing a coupler which upon reaction with oxidized color developer forms a magenta image dye, the element additionally comprising a hue correction coupler associated with a green sensitive layer which coupler reacts with oxidized developer to form a magenta dye having a peak absorption between 565-600 nm so that the element has a D580/D550 ratio which is greater than that exhibited by the element absent the hue correction coupler. The invention also provides a process for forming an image in the element described.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: September 5, 1995
    Assignee: Eastman Kodak Company
    Inventors: Stephen P. Singer, Jared B. Mooberry
  • Patent number: 5445928
    Abstract: A color photographic material comprising at least one cyan-coupling silver halide emulsion layer containing a red sensitizer, at least one magenta-coupling silver halide emulsion layer containing a green sensitizer and at least one yellow-coupling silver halide emulsion layer containing a blue sensitizer on a support, in which a silver halide emulsion is provided in a coupler-free layer sensitized with another spectral sensitizer (a gap sensitizer) of which the sensitization maximum lies between the sensitization maxima of the red- and green-sensitive layers or the green- and blue-sensitive layers, is distinguished by an extended gradation range towards the maximum densities and by distinctly improved detail reproduction in the region of high densities.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: August 29, 1995
    Assignee: Agfa-Gevaert AG
    Inventors: Arno Schmuck, Edgar Draber, Michael Missfeldt
  • Patent number: 5445929
    Abstract: There is described a photographic system comprising a variable contrast black and white photographic element and at least one filter. The element and the filter are so chosen that they cooperate to provide an extension of log exposure range of the element.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: August 29, 1995
    Assignee: Eastman Kodak Company
    Inventors: Vincent R. Brown, John R. Burdsall, II
  • Patent number: 5441856
    Abstract: A photographic element, and a method of making such an element, comprising a cyan dummy dye present in the element prior to exposure and development. The particular cyan dummy dye has a high extinction coefficient, low density losses in seasoned bleach, while maintaining the desired hue and resisting density losses on cold storage. The dye has the formula:wherein: ##STR1## n is 1, 2 or 3; each R.sub.1 is an electron-withdrawing group which may be the same or different when n is 2 or 3;R.sub.2 is an alkyl group having from one to about 20 carbon atoms, a cycloalkyl group having from 3 to 8 carbon atoms in the ring, or an aryl group;R.sub.3 is any of the groups which R.sub.2 may be or is hydrogen;R.sub.4 is selected from the group consisting of alkylsulfonyl, arylsulfonyl, alkylsulfoxyl, arylsulfoxyl, sulfamoyl, alkylsulfonate, carbamoyl, alkoxycarbonyl and acyl groups;R.sub.5 is an alkyl group;R.sub.6 is hydrogen, or an alkyl group; andR.sub.7 is hydrogen or an alkyl group.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: August 15, 1995
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, David Hoke
  • Patent number: 5437968
    Abstract: A silver halide color photograph light-sensitive material having an improved push-processing suitability. The material comprises a support having provided thereon at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one red-sensitive emulsion layer. The layers adjacent to each of layer having a color sensitivity contain yellow colloidal silver.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: August 1, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsurou Nagaoka
  • Patent number: 5437969
    Abstract: A color photographic silver halide material having at least one silver halide emulsion layer which is cyan coupling and contains a red sensitizer, at least one magenta coupling silver halide emulsion layer containing a green sensitizer and at least one yellow coupling silver halide emulsion layer containing a blue sensitizer on a support, in which the at least one blue sensitive halide emulsion layer contains a further spectral sensitizer (gap sensitizer) whose sensitization maximum lies between the sensitization maxima of the red and green sensitive silver halide emulsion layer and/or the at least one red sensitive silver halide emulsion layer contains an additional spectral sensitizer (gap sensitizer) whose sensitization maximum lies between the sensitization maxima of the green sensitive and the blue sensitive silver halide emulsion layer is distinguished by an increased range of gradations in the region of the maximum densities and a markedly improved detail reproduction in the region of high densities.
    Type: Grant
    Filed: January 6, 1994
    Date of Patent: August 1, 1995
    Assignee: Agfa-Gevaert AG
    Inventors: Arno Schmuck, Edgar Draber, Michael Missfeldt
  • Patent number: 5420003
    Abstract: A photographic element is disclosed comprised of a support and a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon imagewise exposure and photographic development. A first interlayer unit overlies the emulsion layer unit nearest the support and is capable of transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record. A second interlayer unit underlies the emulsion layer unit farthest from the support and is capable of transmitting to the emulsion layer units lying nearer the support imagewise exposing radiation these emulsion layer units are intended to record. The imagewise exposed photographic element is photographically developed and fixed to produce a silver image in each of the emulsion layer units.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: May 30, 1995
    Assignee: Eastman Kodak Company
    Inventors: John Gasper, Gareth B. Evans, Christopher B. Rider, Michael J. Simmons
  • Patent number: 5418119
    Abstract: A photographic element is disclosed comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units at least two of which produce images of the same hue upon processing. The photographic element is additionally comprised of, interposed between the two emulsion layer units, an interlayer unit for transmitting to the emulsion layer unit of the two units which is nearer the support, electromagnetic radiation that this emulsion layer unit is intended to record and capable, after processing, of reflecting electromagnetic radiation within at least one wavelength region.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: May 23, 1995
    Assignee: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Patent number: 5399469
    Abstract: This invention relates to color photographic elements and processes and especially to color photographic elements comprising two or more image forming layers sensitized to the same region of the electromagnetic spectrum where a more sensitive layer is positioned closer to an exposure source than a less sensitive layer and the less sensitive layer additionally comprises a spatially fixed absorber dye. The combination provides improved image sharpness without compromising photographic sensitivity.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: March 21, 1995
    Assignee: Eastman Kodak Company
    Inventor: Richard P. Szajewski
  • Patent number: 5399470
    Abstract: Radiographic elements and assemblies are disclosed. The radiographic element has silver halide emulsion layer units coated on opposite sides of a film support, and are constructed to minimize crossover during exposure by the intensifying screens. The minimal crossover radiographic elements record both bone and soft tissue structure because a silver halide emulsion layer unit on one side of the support is chosen to exhibit an emission and contrast exceeding that of another silver halide emulsion layer unit on the opposite side of the support. Radiographic assemblies consisting of the radiographic elements and various front and back intensifying screens produce clear and useful X-ray images of the various bones and surrounding soft tissue structures of the body.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: March 21, 1995
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Phillip C. Bunch
  • Patent number: 5395744
    Abstract: 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: Grant
    Filed: October 13, 1993
    Date of Patent: March 7, 1995
    Assignee: Eastman Kodak Company
    Inventors: Allan F. Sowinski, Richard P. Szajewski, James P. Merrill
  • Patent number: 5389499
    Abstract: A color photographic element which contains a color correction layer above at least one red sensitive layer of the element results in an element having excellent color reproduction.
    Type: Grant
    Filed: September 8, 1993
    Date of Patent: February 14, 1995
    Assignee: Eastman Kodak Company
    Inventor: Jeffrey L. Hall
  • Patent number: 5380634
    Abstract: 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: Grant
    Filed: September 10, 1993
    Date of Patent: January 10, 1995
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Eric Kiekens, Paul Callant
  • Patent number: 5374507
    Abstract: A silver halide color photographic light-sensitive material capable of providing a dye image having excellent color reproducibility, sharpness and image fastness.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: December 20, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuhiro Yoshioka
  • Patent number: 5372920
    Abstract: A multilayered color photographic element contains a support having coated thereon photographic silver halide emulsion layers including at least one blue-sensitive and at least three red-sensitive silver halide emulsion layers, said red-sensitive layers respectively being most, mid, and least red-sensitive relative to each other, said most and mid red-sensitive layers being contiguous, and the most red-sensitive layer being a coupler starved layer, which element comprises:(a) a yellow image dye-forming coupler and substantially no development inhibitor releasing coupler in the most red-sensitive layer; and(b) at least one development inhibitor releasing coupler in the mid red-sensitive layer.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: December 13, 1994
    Assignee: Eastman Kodak Company
    Inventor: Larry D. Edwards
  • Patent number: 5368962
    Abstract: A lightsafe masking film is disclosed which includes a transparent substrate, and a transparent, lightsafe layer peelably provided over the surface of the substrate and containing a light yellow colorant and a blue colorant so that the color of the lightsafe layer is light green. The spectral transmittance of the lightsafe layer does not exceeds 1% in the wavelength region of between 350 nm and L.sub.max, wherein L.sub.max is 420 nm or more, but exceeds 1% in the wavelength region of longer than L.sub.max with the maximum spectral transmittance of the lightsafe layer in the wavelength region of 500-570 nm being greater than 50%. The light green masking film is suitably used together with a conventional yellow or amber masking film for masking a photosensitive material in photomechanical reproduction process.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: November 29, 1994
    Assignee: Somar Corporation
    Inventors: Naohiko Kiryu, Hiroshi Maruyama, Etsuko Minezaki, Yoshinori Watanabe
  • Patent number: 5364749
    Abstract: A photographic material is described which comprises, on a base, blue-sensitive, green-sensitive and/or red-sensitive silver-halide emulsion layers and if desired a protection layer, a layer containing a UV absorber being arranged between the uppermost silver-halide emulsion layer and the protection layer or on top of the uppermost silver-halide emulsion layer, wherein the UV absorber conforms to the formula ##STR1## in which the radical R.sub.1 is alkyl, substituted alkyl, alkenyl, glycidyl, cycloalkyl or phenylalkyl, and R.sub.12 is alkyl, benzyl, cyclohexyl, phenyl, substituted phenyl or alkoxy.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: November 15, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: David G. Leppard, Kurt Burdeska, Mario Slongo
  • Patent number: 5364748
    Abstract: There is disclosed a silver halide color photo-graphic light-sensitive material capable of providing a dye image having excellent color reproducibility, sharpness and image fastness. The light-sensitive material comprises a support having provided thereon a photographic constituent layer comprising a light-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, a light-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, and a light-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and non-light-sensitive hydrophilic colloid layers.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: November 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Yoneyama
  • Patent number: 5360702
    Abstract: Melt crystallization of a photographic composition containing dispersed particles of a filter dye and dispersed particles of oxidized developer scavenger, in particular a hydrazide or a disulfonamidophenol oxidized developer scavenger, is inhibited by dispersing the oxidized developer scavenger in the composition in the form of particles comprising the oxidized developer scavenger dispersed or dissolved in an organic solvent selected such that the following relationship is satisfied:6.65+10.0 A-1.53 B+0.11 B.sup.2 -0.99 AB<4.0wherein A is the weight ratio of organic solvent to oxidized developer scavenger; and B is the log P of the organic solvent.
    Type: Grant
    Filed: January 26, 1993
    Date of Patent: November 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Glenn M. Brown, John B. Rieger
  • Patent number: 5360705
    Abstract: A silver halide color photographic material comprising a support having thereon a yellow color forming silver halide emulsion layer, a magenta color forming silver halide emulsion layer and a cyan color forming silver halide emulsion layer. The yellow color forming emulsion layer contains a silver halide emulsion having a silver chloride content of not less than 90 mol %, a yellow coupler and a bisphenol compound and optionally a difficultly water-soluble epoxy compound. One or more layers of the light-sensitive material may contain an ultraviolet light absorber.
    Type: Grant
    Filed: October 22, 1992
    Date of Patent: November 1, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Yoneyama
  • Patent number: 5350650
    Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon processing (e.g., units lacking a dye-forming coupler). A first interlayer unit overlies the emulsion layer unit nearest the support and is capable of transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record. A second interlayer unit underlies the emulsion layer unit farthest from the support and is capable of transmitting to the emulsion layer units lying nearer the support imagewise exposing radiation these emulsion layer units are intended to record.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: September 27, 1994
    Assignee: Eastman Kodak Company
    Inventors: John Gasper, Gareth B. Evans, Christopher B. Rider, Michael J. Simons
  • Patent number: 5350664
    Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units at least two of which produce images of the same hue upon processing (e.g., lacking an incorporated dye-forming coupler), and obtaining separate blue, green and red exposure records from the photographic element. The photographic element is additionally comprised of, interposed between the two emulsion layer units, an interlayer unit for transmitting to the emulsion layer unit of the two units which is nearer the support, electromagnetic radiation that this emulsion layer unit is intended to record and capable, after processing, of reflecting electromagnetic radiation within at least one wavelength region.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: September 27, 1994
    Assignee: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Patent number: 5350651
    Abstract: A method is disclosed of obtaining from an imagewise exposed photographic element separate records of the imagewise exposure to each of the blue, green and red portions of the spectrum comprising photographically processing an imagewise exposed photographic element comprised of a sequence of superimposed blue, green and red recording silver halide emulsion layer units that produce images of the same hue upon processing (e.g., lacking an incorporated dye-forming coupler). A first interlayer overlies the emulsion layer unit nearest the support for transmitting to it imagewise exposing radiation this emulsion layer unit is intended to record and for absorbing after photographic processing scanning radiation within at least one wavelength region.
    Type: Grant
    Filed: July 16, 1993
    Date of Patent: September 27, 1994
    Assignee: Eastman Kodak Company
    Inventors: Gareth B. Evans, Christopher B. Rider, Michael J. Simons
  • Patent number: 5344749
    Abstract: 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 decolorized in alkaline aqueous liquids used in the processing of said materials. The filter dyes have an amide function or a derivative therefrom as a substituent at the mono- or trimethine chain.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: September 6, 1994
    Assignee: AGFA-Gevaert, N.R.
    Inventors: Eric Kiekens, Paul Callant
  • Patent number: 5342743
    Abstract: There is disclosed a silver halide photographic material which can satisfy the specific properties required for dot to dot work photographic materials and can be handled under an environment of a bright room. The silver halide photographic material comprises a support, having provided thereon at least one light-sensitive silver halide emulsion layer and having provided farther from the support than the emulsion layer a light-insensitive hydrophilic colloid layer. The light-insensitive hydrophilic colloid layer contains at least a solid dye which is dispersed in the form of fine particles and further may contain a water soluble dye. The silver halide grains contained in the light-sensitive emulsion layer have an average grain size of 0.15 .mu.m or less and contain therein at least 1.times.10.sup.-7 mole per mole of a silver of transition metal selected from the elements of groups V to VIII of the Periodic Table.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: August 30, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takahiro Goto, Nobuaki Inoue
  • Patent number: 5336761
    Abstract: Disclosed is a diffusion transfer color photographic material at least having a light-sensitive silver halide, a binder, a non-diffusive dye donor compound capable of releasing or forming a diffusive dye in correspondence or reverse correspondence with the reaction of reducing the silver halide to silver, and a non-diffusive filter dye, on a support, in which the filter dye is in the form of an emulsified dispersion along with the dye donor compound. The color separatability of the processed material is good and the discrimination of the formed image is also good. The raw film of the material is free from lowering of the filter effect after storage.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: August 9, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Ozaki, Takuya Yokokawa
  • Patent number: 5328818
    Abstract: A silver halide color photographic light-sensitive material includes red-, green- and blue-sensitive silver halide emulsion layers, and a non-light-sensitive layer, and contains a dye of the following formula (I). The emulsion layer or the non-light-sensitive layer contains a yellow coupler of the following formula (1) or (2), or an acylacetamide type yellow coupler having an acyl group of the following formula (Y): ##STR1## where X and Y represent an electron attractive group, or when coupled with each other, XY represents an acidic nucleus, Ar represents a phenyl group or a heterocyclic group, and L.sup.1, L.sup.2 and L.sup.3 represent a methine group, ##STR2## where X.sub.1 and X.sub.2 represent an alkyl group, an aryl group, or a heterocyclic group, X.sub.3 represents an organic group which forms a nitrogen-containing heterocyclic group together with >N--, Y represents an aryl group or a heterocyclic group, and Z represents a split-off group, ##STR3## where D.sup.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: July 12, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Fukuzawa, Kohzaburoh Yamada, Keiji Mihayashi, Koji Tamoto, Shigeru Shibayama, Minoru Sato, Kiyoshi Nakazyo
  • Patent number: 5324625
    Abstract: 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: Grant
    Filed: July 7, 1992
    Date of Patent: June 28, 1994
    Assignee: Konica Corporation
    Inventors: Shigeto Hirabayashi, Yasushi Usagawa, Yasuhiko Kawashima, Nobuaki Kagawa
  • Patent number: 5312724
    Abstract: Disclosed is a silver halide photographic photosensitive material comprising a support having thereon a layer which contains at least one dye represented by general formula (I): ##STR1## wherein, R.sup.1 represents a hydrogen atom, a halogen atom, a sulfonic acid group, a carboxylic acid group or a CONHR, SO.sub.2 NHR, NHSO.sub.2 R, NHCOR or NHCONHR group (where R is an alkyl group, an aryl group or a heterocyclic group); R.sup.2 represents a group represented by SO.sub.2 R, COR or CONHR (where R has the same significance as before); R.sup.3 and R.sup.4 are the same or different, and each represents a hydrogen atom, an alkyl group, an alkoxy group, a hydroxy group, an amino group or a halogen atom; R.sup.5 and R.sup.6 are the same or different, and each represents an alkyl group, an aryl group, an acyl group or a sulfonyl group; R.sup.5 and R.sup.6 may be joined together to form a five or six membered ring; R.sup.5 and R.sup.6 may be joined with the adjacent R.sup.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: May 17, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toru Harada, Kiyoshi Kawai
  • Patent number: 5312723
    Abstract: Disclosed is a silver halide photographic photosensitive material which contains at least dye by general formula (I) below: ##STR1## wherein R.sup.1 represents a hydrogen atom, a halogen atom, a sulfonic acid group, a carboxylic acid group or a CONHR, SO.sub.2 NHR, NHSO.sub.2 R, NHCOR or NHCONHR group (where R is an alkyl group, an aryl group or a heterocyclic group); R.sup.2 and R.sup.3 are the same or different and each represents a hydrogen atom, an alkyl group or an NHSO.sub.2 R or NHCOR group (where R has the same meaning as above) or a halogen atom, or R.sup.2 and R.sup.3 may be joined together and represent a group of atoms which is required to form an aromatic ring; R.sup.4 and R.sup.5 are the same or different and each represents a hydrogen atom, an alkyl group, an alkoxy group, a hydroxy group, an amino group or a halogen atom; R.sup.6 and R.sup.7 are the same or different and each represents an alkyl group, an aryl group, an acyl group or a sulfonyl group; R.sup.6 and R.sup.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: May 17, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toru Harada, Kiyoshi Kawai
  • Patent number: 5308747
    Abstract: A photographic recording material comprising a support bearing at least one photographic layer comprising a sensitized high aspect ratio tabular grain silver halide emulsion and at least one spatially fixed dye layer spatially positioned between said silver halide layer and the upper surface of said recording material, said dye layer comprises a spatially fixed dye that absorbs light in the region of the spectrum to which the silver halide is sensitized.
    Type: Grant
    Filed: April 16, 1992
    Date of Patent: May 3, 1994
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, James P. Merrill, Allan F. Sowinski
  • Patent number: 5300414
    Abstract: A photographic material is described which comprises, on a base, blue-sensitive, green-sensitive and/or red-sensitive silver-halide emulsion layers and, if desired, a protection layer, a layer containing a UV absorber being arranged between the uppermost silver-halide emulsion layer and the protection layer, or on top of the uppermost silver-halide emulsion layer, wherein the UV absorber conforms to the formula ##STR1## in which the radicals E.sub.1, E.sub.2 and E.sub.3 are independently alkyl, substituted alkyl, alkenyl, glycidyl, cycloalkyl, phenylalkyl or siloxyl.
    Type: Grant
    Filed: September 1, 1992
    Date of Patent: April 5, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: David G. Leppard, Vien V. Toan, Mario Slongo
  • Patent number: 5298369
    Abstract: When color reversal materials are developed by a process that comprises prolonged contact with the first, or black-and-white developer, images with a color mismatch or speed deficiency can occur. Such undesirable results can be reduced or eliminated by including in the reversal material, a layer of colloidal elemental silver. The layer can be adjacent to a light sensitive, silver halide-containing layer, which is present within a color record who's speed is to be increased in order to reduce the color mismatch. The amount of colloidal elemental silver employed is less than that used in the art to protect an underlying light sensitive, silver halide layer from exposure by unwanted light.
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: March 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: Jal F. Munshi, Henry J. Sniadoch, Richard C. Tuites
  • Patent number: 5298377
    Abstract: A photographic element is described havinga photographic support;a green sensitive silver halide emulsion layer on the photographic support and having a magenta dye-forming coupler, anda filter layer on the photographic support and associated with the green sensitive layer, wherein the magenta dye-forming coupler is a 2-equivalent magenta dye-forming coupler, and the filter layer includes a filter dye molecule having the formula:D.dbd.CH--M (I)wherein D is a group which, with the remainder of the molecule, forms a dye having an absorption maximum in the blue or green region of the visible spectrum, andM is a five-membered or six-membered unsaturated heterocyclic ring, which may be fused with another five-membered or six-membered ring system, and which is unsubstituted or substituted with a lower alkyl group having from 1 to 10 carbon atoms, or an electron withdrawing group.
    Type: Grant
    Filed: August 28, 1991
    Date of Patent: March 29, 1994
    Assignee: Eastman Kodak Company
    Inventor: Arlyce T. Bowne
  • Patent number: 5298378
    Abstract: 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: Grant
    Filed: March 19, 1993
    Date of Patent: March 29, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Dietrich M. Fabricius
  • Patent number: 5290669
    Abstract: A silver halide color photographic light-sensitive material having photographic component layers on a support and at least one layer of which contains a silver salt of dye, is disclosed. The material has properties of high sharpness, high speed, less fogging and excellent raw stock stability.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: March 1, 1994
    Assignee: Konica Corporation
    Inventors: Shigeto Hirabayashi, Yasushi Usagawa, Nobuaki Kagawa, Yasuhiko Kawashima
  • Patent number: 5288599
    Abstract: A silver halide color photographic material and an image forming process using the same are disclosed. Said silver halide color photographic material comprises a reflecting support and provided thereon three light-sensitive silver halide emulsion layers each having a different light sensitivity to a different wavelength region, including a light sensitive silver halide emulsion layer containing a yellow dye-forming coupler, a light sensitive silver halide emulsion layer containing a magenta dye-forming coupler, and a light sensitive silver halide emulsion layer containing a cyan dye-forming coupler. The silver halide color photographic material satisfies the following conditions.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: February 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Kazunori Hasebe, Kentaro Osazaki