Ingredient For Color Compensation Or Correction Containing Patents (Class 430/504)
  • Patent number: 6261750
    Abstract: A silver halide color light-sensitive material contains at least one light-sensitive silver halide emulsion layer and at least one non-light-sensitive layer on a support, wherein at least one of the non-light-sensitive layers contains a silver halide emulsion having a previously fogged surface, and the non-light-sensitive layer containing the previously fogged emulsion and/or its adjacent layer contains a compound capable of releasing a photographically useful group or its precursor by a coupling reaction with the oxidized form of a developing agent, wherein the previously fogged emulsion is developed during color development to evenly form the oxidized form of a color developing agent, and the photographically useful group or its precursor is released non-imagewise by the coupling reaction.
    Type: Grant
    Filed: March 31, 2000
    Date of Patent: July 17, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Ishii, Takayuki Ito, Fumitaka Ueda, Hiroyuki Yoneyama
  • Patent number: 6228568
    Abstract: The present invention relates to a color photographic recording material which contains, in at least one layer between the substrate and light-sensitive emulsion layer situated nearest to the substrate, a compound of formula (I) wherein X and Y, independently of each other in each case, represent an electron-attracting group, and X and Y together can form a group which is necessary for the completion of a 5- or 6-membered ring.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: May 8, 2001
    Assignee: Agfa-Gevaert
    Inventors: Thomas Stetzer, Hans Langen, Heinz Schütz, Hans-Joachim Schumann, Klaus Sinzger, Johannes Willsau, Dirk Hübner, Engelbert Wiel
  • Patent number: 6180329
    Abstract: A photographic material comprising a support coated with a silver halide image-forming emulsion layer, a non image-forming layer, and a hydrophilic colloid protective layer wherein the non image-forming layer is situated between the protective layer and the image-forming layer and comprises metallic silver in particle form.
    Type: Grant
    Filed: August 9, 1999
    Date of Patent: January 30, 2001
    Assignee: Eastman Kodak Company
    Inventor: Christian Paris
  • Patent number: 6162595
    Abstract: Photographic elements capable of forming a reversal image are disclosed comprising a support and, coated on said support, at least one image recording emulsion layer comprised of a dispensing medium and radiation sensitive silver halide grains and at least one substantially non-image forming layer. In one embodiment, the substantially non-image forming layer comprises: a) a light sensitive silver halide imaging emulsion which is less than 10 percent of the mass of the total imaging emulsion in the element; b) a first non-image forming silver salt emulsion having an average grain size less than 0.15 .mu.m; and c) a second non-image forming silver salt emulsion comprising iodide having an average grain size greater than that of the first non-image forming emulsion.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: December 19, 2000
    Assignee: Eastman Kodak Company
    Inventor: Keath T. Chen
  • Patent number: 6159675
    Abstract: A colour photographic material having a support and at least one silver halide emulsion layer containing couplers, which layer contains as couplers a 2-equivalent magenta coupler and both at least one compound of the formula (III) and at least one compound of the formula (IV): ##STR1## in which R.sub.4 to R.sub.9 and n have the meaning stated in the description, is distinguished by reduced pressure sensitivity.
    Type: Grant
    Filed: May 25, 1999
    Date of Patent: December 12, 2000
    Assignee: Agfa-Gevaert Naamloze Vennootschap
    Inventors: Cuong Ly, Matthias Feigl, Markus Geiger
  • Patent number: 6143482
    Abstract: A photographic element comprises: 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, wherein, the red recording layer unit is comprised of at least one green-red sensitive emulsion having a peak dyed absorptance of between about 525 and about 600 nm, an overall half-peak absorptance bandwidth of between about 70 and about 150 nm, and a ratio of the bandwidths at 80% of peak absorptance to 50% of peak absorptance of greater than or equal to about 0.25.In preferred embodiments of the invention, the photographic element is especially suited for more accurately recording scenes according to the human visual system.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: November 7, 2000
    Assignee: Eastman Kodak Company
    Inventors: Lois A. Buitano, Allan F. Sowinski, Steven G. Link
  • Patent number: 6132943
    Abstract: A multilayer silver halide color photographic element is disclosed comprising a support bearing a light-sensitive silver halide emulsion layer and a non-diffusible yellow-colored magenta dye-forming masking coupler of the following formula ##STR1## wherein COUP is a magenta dye-forming coupler having the azo group attached to its coupling position; q is an integer of from 0 to 3, and each R' independently represents a substituent group or two R' groups together complete a ring of from 5-7 atoms, which ring may include 1 or more heteroatoms selected from O, N and S; m is 1 or 2, and DG represents a substituent of the formula ##STR2## where each L.sup.1 represents a divalent linking group, preferably --O(CH.sub.2).sub.y --, --NHCO(CH.sub.2).sub.y --, or --NRCO(CH.sub.2).sub.y --, where R represents an alkyl or aryl group and y represents an integer from 1 to 4; each k is either 0 or 1; each L.sup.2 represents --NHSO.sub.2 --, --NHCO--, --SO.sub.2 NH--, or --CONH--, preferably at least one L.sup.
    Type: Grant
    Filed: October 14, 1999
    Date of Patent: October 17, 2000
    Assignee: Eastman Kodak Company
    Inventors: Janet N. Younathan, Michael W. Crawley, Krishnan Chari
  • Patent number: 6063555
    Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a transparent support having on one side thereof a cyan dye-forming coupler-containing red-sensitive silver halide emulsion layer, a magenta dye-forming coupler-containing green-sensitive silver halide emulsion layer, a yellow dye-forming coupler-containing blue-sensitive silver halide emulsion layer, a non-light-sensitive hydrophilic colloid layer and an invisible light-sensitive silver halide emulsion layer containing a dye forming coupler, a colored coupler or a DIR compound.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: May 16, 2000
    Assignee: Konica Corporation
    Inventors: Kuniaki Uezawa, Kaoru Onodera, Hideaki Haraga
  • Patent number: 6048673
    Abstract: The present invention relates to a color reversal photographic light-sensitive material, and particularly to a color reversal photographic light-sensitive material improved in skin color (flesh color) reproduction. More specifically, it relates to a color reversal photographic light-sensitive material that is excellent in tone reproduction of gray and skin colors, and that also exhibits a preferable chroma (colorfulness or saturation) with respect to skin colors of different tints.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: April 11, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masayuki Kuramitsu, Sadanobu Shuto, Shigeru Kuwashima, Makoto Yamada
  • Patent number: 6048674
    Abstract: The invention provides photographic element comprising a first light sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler, a second light sensitive silver halide emulsion layer having associated therewith a magenta dye-forming coupler, and a third light sensitive silver halide emulsion layer having associated therewith a yellow dye-forming coupler,wherein the normalized spectral transmission density distribution curve of the dye formed by the cyan coupler upon development with a p-phenylenediamine developer has a density between 0.7 and 0.78 at 600 nm and a density between 0.8 and 0.91 at 610 nm. Such an element enables an increase in the color gamut for imaging.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: April 11, 2000
    Assignee: Eastman Kodak Company
    Inventors: Elizabeth McInerney, Patti L. Bushnell
  • Patent number: 6045984
    Abstract: A silver halide light sensitive photographic material is disclosed, comprising component layers including a silver halide emulsion layer and a hydrophilic colloid layer, wherein the silver halide emulsion layer comprises tabular grains and at least one of the component layers layers contains a leuco compound capable of forming a dye upon reaction with an oxidation product of a developing agent; the tabular grains 1) having (111) major faces, and exhibiting an average equivalent circular diameter of 0.5 to 3.0 .mu.m and an average thickness of 0.07 to 0.3 .mu.m, 2) including epitaxially deposited silver halide protrusions of a face-centered cubic crystal lattice structure forming epitaxial junctions with the tabular grains, and 3) the protrusion being located on peripheral portions of the tabular grains.
    Type: Grant
    Filed: May 20, 1998
    Date of Patent: April 4, 2000
    Assignee: Konica Corporation
    Inventor: Hiromi Hoshino
  • Patent number: 6033841
    Abstract: A color photographic silver halide material having at least two red-sensitive, cyan-coupling silver halide emulsion layers of different photographic sensitivity, at least two green-sensitive, magenta-coupling silver halide emulsion layers of different photographic sensitivity and at least one blue-sensitive, yellow-coupling silver halide emulsion layer, and having intermediate layers at least between silver halide emulsion layers of different color sensitivity, wherein at least one color coupler is provided in an intermediate layer which is directly adjacent to a lowest-sensitivity silver halide emulsion layer which is sensitive to a defined spectral region and which couples to the complementary color, which color coupler couples in a non-complementary manner with respect to the aforementioned lowest-sensitivity silver halide emulsion layer, is distinguished by its improved reproduction of yellow color shades.
    Type: Grant
    Filed: March 6, 1998
    Date of Patent: March 7, 2000
    Assignee: AGFA-Gevaert NV
    Inventors: Peter Bell, Hans-Ulrich Borst, Ralf Buscher, Jorg Siegel, Rainer Scheerer, Heinz Schutz
  • Patent number: 6020114
    Abstract: A colour photographic recording material which contains on a support at least one blue-sensitive silver halide emulsion layer, which is associated with a yellow coupler, at least one green-sensitive silver halide emulsion layer, which is associated with a magenta coupler, and at least one red-sensitive silver halide emulsion layer, which is associated with a cyan coupler, together with non-photosensitive interlayers between the layers of different colour sensitivity, characterised in that at least one green-sensitive silver halide emulsion layer contains a pyrazolotriazole coupler as the magenta coupler and at least one interlayer adjacent to this layer contains a compound of the formula I as the DOP scavenger ##STR1## in which R.sub.1 means alkyl, aryl, acyl or alkenyl,R.sub.2 means hydrogen or R.sub.1and in which R.sub.1 and R.sub.2 may also form a ring consisting of 5 or 6 atoms, wherein a ring consisting of 6 atoms is not aromatic,or a compound of the formula II ##STR2## in which R.sub.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: February 1, 2000
    Assignee: AGFA - Gevaert NV
    Inventor: Jorg Hagemann
  • Patent number: 6017689
    Abstract: A color photographic silver halide material having at least two blue-sensitive, yellow coupler containing silver halide emulsion layers, at least two green-sensitive, magenta coupler containing silver halide emulsion layers and at least two red-sensitive, cyan coupler containing silver halide emulsion layers together with conventional interlayers and protective layers, wherein photosensitive layers of identical color sensitivity differ with regard to the photographic sensitivity thereof and the more highly sensitive layers are arranged further away from the support than the less sensitive layers of identical color sensitivity, which material contains, in a layer which is arranged further from the support than the most highly sensitive, blue-sensitive layer, both at least one yellow coupler and at least one magenta or cyan coupler, is distinguished by improved grain and sensitivity combined with very good color reproduction.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: January 25, 2000
    Assignee: Agfa-Gevaert AG
    Inventors: Peter Bell, Ralf Buscher, Lothar Endres, Lothar Rosenhahn, Rainer Scheerer, Lydia Simon, Thomas Stetzer
  • Patent number: 6015654
    Abstract: A color photographic recording material which contains, on a support, at least one blue-sensitive silver halide emulsion layer with which a yellow coupler is associated, at least one green-sensitive silver halide emulsion layer with which a magenta coupler is associated, and at least one red-sensitive silver halide emulsion layer with which a cyan coupler is associated, as well as light-insensitive intermediate layers between the layers of different coloor-sensitivity, characterised in that it contains a pyrazolotriazole coupler as a magenta coupler in at least one green-sensitive silver halide emulsion layer, and in at least one of said layers it contains, as a DOP scavenger, a compound of formula I ##STR1## wherein X.sub.1,X.sub.2 represent a single bond, --O-- or --NR.sub.7 --,R.sub.1 represents hydrogen or a group which can split off under the conditions of chromogenic development,R.sub.2 represents hydrogen or --CO--X.sub.1 --R.sub.4,R.sub.3 represents hydrogen or --CO--X.sub.2 --R.sub.5,R.sub.4, R.sub.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: January 18, 2000
    Assignee: AGFA-Gevaert NV
    Inventors: Jorg Hagemann, Siegfried Dzwonnek
  • Patent number: 6004718
    Abstract: A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process.When images are formed by an optional image forming method such as silver salt photographic process, ink jet process or thermal transfer process, a transfer material having sepia tone is used in each of the image forming processes thereby forming sepia tone images. Images having unique appearance can be formed easily upon forming images by a thermal transfer process. Images of sepia tone can be formed safely and conveniently.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: December 21, 1999
    Assignee: Sony Corporation
    Inventor: Satoru Shinohara
  • Patent number: 5998113
    Abstract: A color photographic element is disclosed containing in its blue recording layer unit a blue light reflective layer positioned to receive light from a layer in the blue recording layer unit containing latent image forming silver halide grains of maximum sensitivity. The blue light reflective layer is free of blue absorbing dye and contains tabular silver halide grains having a thickness in the range of from 0.12 to 0.15 .mu.m, an average aspect ratio of greater than 15, and a coating coverage of 0.5 to 1.5 g/m.sup.2, and are formed of greater than 50 mole percent bromide, based on silver. The layer containing grains of maximum sensitivity additionally contains from 0.01 to 0.5 g/m.sup.2 of randomly oriented grains having an ECD in the range of from 0.01 to 0.5 .mu.m.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: December 7, 1999
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, James A. Friday, Roger A. Bryant
  • Patent number: 5994042
    Abstract: A color photographic element is disclosed containing in its blue recording layer unit a blue light reflective layer positioned to receive light from a layer in the blue recording layer unit containing latent image forming silver halide grains of maximum sensitivity. The blue light reflective layer is free of blue absorbing dye and contains tabular silver halide grains having a thickness in the range of from 0.12 to 0.15 .mu.m, an average aspect ratio of greater than 15, and a coating coverage of 0.5 to 1.5 g/m.sup.2, and are formed of greater than 50 mole percent bromide, based on silver.
    Type: Grant
    Filed: April 1, 1999
    Date of Patent: November 30, 1999
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, James A. Friday, Roger A. Bryant
  • Patent number: 5994043
    Abstract: A color photographic element is disclosed containing in its blue recording layer unit a blue light reflective layer positioned to receive light from first and second latent image forming layers in the blue recording layer unit. The first layer overlies the second layer and contains a silver coating coverages in the range of from 0.1 to 0.7 g/m.sup.2. The second layer contains latent image forming silver halide grains of maximum sensitivity. The blue light reflective layer is free of blue absorbing dye and contains tabular silver halide grains have a thickness in the range of from 0.12 to 0.15 .mu.m, an average aspect ratio of greater than 15, and a coating coverage of 0.5 to 1.5 g/m.sup.2, and are formed of greater than 50 mole percent bromide, based on silver.
    Type: Grant
    Filed: April 5, 1999
    Date of Patent: November 30, 1999
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, James A. Friday, Roger A. Bryant
  • Patent number: 5981154
    Abstract: A silver halide color photographic material is disclosed which comprises a support and provided thereon, a first silver halide emulsion layer comprising at least one yellow image forming silver halide emulsion, a second silver halide emulsion layer comprising-at least one magenta image forming silver halide emulsion and a third silver halide emulsion layer comprising at least one cyan image forming silver halide emulsion, wherein at least one of said first, second and third silver halide emulsion layers further contains a fourth silver halide emulsion, each one of said first, second, third and fourth silver halide emulsions has a spectral sensitivity wavelength region at least six times higher than that in the wavelength region of the other three emulsions, and said fourth silver halide emulsion gives an optical density after development of 0.7 or more.
    Type: Grant
    Filed: September 29, 1997
    Date of Patent: November 9, 1999
    Assignee: Konica Corporation
    Inventors: Yasuo Tosaka, Susumu Ohkawachi, Masayuki Sasagawa
  • Patent number: 5972586
    Abstract: A silver halide color photosensitive material suitable for production of a color filter which comprises a polymer coupler comprising at least a yellow coupler monomer and a cyan coupler monomer. The photosensitive material provides a green image having excellent spectral transmission characteristics and fastness to heat and light.
    Type: Grant
    Filed: March 20, 1998
    Date of Patent: October 26, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Tatsuya Igarashi, Hiroyuki Hirai
  • Patent number: 5972585
    Abstract: A color negative photographic element is disclosed containing yellow, magenta and cyan dye-forming couplers and masking dyes. Visual judging of the negative image obtained following processing is facilitated by choosing the masking dyes to provide, following imagewise exposure and processing, in CIE1976(L.sup.* a.sup.* b.sup.*) color space L.sup.* values of greater than 30 and C.sup.* values of less than 20, where C.sup.* values are derived from the formula: C.sup.* =[(a.sup.*).sup.2 +(b.sup.*).sup.2 ].sup.1/2.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: October 26, 1999
    Assignee: Eastman Kodak Company
    Inventors: Allan F. Sowinski, Gregory G. Gresock, Wayne F. Erickson, Ronald R. Andrews
  • Patent number: 5968707
    Abstract: A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process.When images are formed by an optional image forming method such as silver salt photographic process, ink jet process or thermal transfer process, a transfer material having sepia tone is used in each of the image forming processes thereby forming sepia tone images. Images having unique appearance can be formed easily upon forming images by a thermal transfer process. Images of sepia tone can be formed safely and conveniently.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: October 19, 1999
    Assignee: Sony Corporation
    Inventor: Satoru Shinohara
  • Patent number: 5948601
    Abstract: The invention relates to a photographic element comprising an emulsion layer comprising a cyan dye forming coupler, an emulsion layer comprising a magenta dye forming coupler, an emulsion layer comprising a yellow dye forming coupler wherein said magenta coupler comprises ##STR1## wherein R.sub.a and R.sub.b independently represent H or a substituent; X is hydrogen or a coupling-off group; and Z.sub.a, Z.sub.b, and Z.sub.c are independently a substituted methine group, .dbd.N--, .dbd.C--, or --NH--, provided that one of either the Z.sub.a --Z.sub.b bond or the Z.sub.b --Z.sub.c bond is a double bond and the other is a single bond, and when the Z.sub.4 --Z.sub.c bond is a carbon-carbon double bond, it may form part of an aromatic ring, and at least one of Z.sub.a, Z.sub.b, and Z.sub.c represents a methine group connected to the group R.sub.
    Type: Grant
    Filed: January 31, 1997
    Date of Patent: September 7, 1999
    Assignee: Eastman Kodak Company
    Inventor: John B. Rieger
  • Patent number: 5932401
    Abstract: Silver halide photographic elements which are capable of producing reversal images are disclosed including a substantially non-image forming overcoat or intercoat layer comprising an image forming emulsion and a non-image forming emulsion. The combination of imaging emulsion and nonimaging emulsion in a substantially non-image forming overcoat or intercoat layer results in an increase in interlayer interimage effects.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: August 3, 1999
    Assignee: Eastman Kodak Company
    Inventor: Keath T. Chen
  • Patent number: 5866311
    Abstract: The present invention concerns a color reversible photographic product In particular, the present invention concerns a new photographic product which has a increase in the exposure latitude of one of the silver halide emulsion layers with which a dye-forming coupler is associated without changing the chromatic balance. This increase in the exposure latitude makes it possible to improve the details of the dye image.
    Type: Grant
    Filed: September 12, 1997
    Date of Patent: February 2, 1999
    Assignee: Eastman Kodak Company
    Inventors: Gerard M. Droin, Yannick Begel
  • Patent number: 5856072
    Abstract: A color photographic element which comprises a light sensitive silver halide emulsion layer and a non-light sensitive interlayer containing a ballasted 5-carbamoyl-1,3-dihydroxybenzene compound. The element exhibits an improved ability to prevent oxidized developer from diffusing away from the imaging layer in which it formed and into other color records where it can form the wrong color dye.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: January 5, 1999
    Assignee: Eastman Kodak Company
    Inventors: Ronald E. Leone, Stephen P. Singer
  • Patent number: 5856076
    Abstract: A color photographic recording material having a film support and, arranged thereon, at least one red-sensitive silver halide emulsion layer containing a cyan coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one blue-sensitive silver halide emulsion layer containing a yellow coupler and optionally further non-photosensitive layers contains, in addition to conventional sensitizing dyes, in at least one of the red-sensitive silver halide emulsion layers thereof and in at least one of the green-sensitive emulsion layers thereof at least one cyanine dye in each layer having an absorption maximum in a methanolic solution in the range from 515 to 550 nm, wherein the absorption maxima of the additional cyanine dye in the red-sensitive silver halide emulsion layer and of the additional cyanine dye in the green-sensitive layer, in each case measured in a methanolic solution, are no more than 10 nm and preferably no more than 5 nm apart.
    Type: Grant
    Filed: April 29, 1997
    Date of Patent: January 5, 1999
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Joerg Siegel, Hans-Ulrich Borst, Peter Bell, Ralf Buscher, Johannes Willsau
  • Patent number: 5851720
    Abstract: A transfer material colored to a predetermined color is used when images are formed on a transfer material for use in thermal transfer comprising a substrate and a dye receiving layer by a thermal transfer process.When images are formed by an optional image forming method such as silver salt photographic process, ink jet process or thermal transfer process, a transfer material having sepia tone is used in each of the image forming processes thereby forming sepia tone images. Images having unique appearance can be formed easily upon forming images by a thermal transfer process. Images of sepia tone can be formed safely and conveniently.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: December 22, 1998
    Assignee: Sony Corporation
    Inventor: Satoru Shinohara
  • Patent number: 5851243
    Abstract: A radiographic element is disclosed capable of producing a maximum density of at least 3.0 when imagewise exposed and processed in less than 45 seconds. The element includes magenta dye or dyes, including a dye for spectrally sensitizing radiation-sensitive silver halide grains, that leave a residual density at 505 nm of greater than 0.1 when the element is processed. Transmission of red light through the radiographic element when imagewise exposed and processed to produce a viewable image is reduced by the incorporation in at least one of the hydrophilic colloid layers of at least one ionic linear condensation polymer containing a cyan phthalocyanine dye.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: December 22, 1998
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, Rickey J. Seyler
  • Patent number: 5817440
    Abstract: A silver halide photosensitive material for a color filter comprising at least three silver halide emulsion layers having different spectral sensitivities and each silver halide emulsion layer contains couplers which form blue, green and red by coupling reaction with the oxidation product of a developer, wherein the amount of the couplers in a red coloring layer is adjusted so that each transmission density of the yellow and magenta dye components measured when all the couplers in the red coloring layer are subjected to color development is 1.5 or more, and a black matrix part becomes substantially black of transmission density of 2.5 or more when all the couplers on a support are subjected to reaction.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: October 6, 1998
    Inventors: Hiroyuki Hirai, Makoto Machida
  • Patent number: 5811228
    Abstract: The invention provides a multilayer color negative photographic element comprising a support, at least one light-sensitive silver halide emulsion layer sensitive to each of the blue, green and red regions of the visible spectrum, a magnetic recording layer, and a permanent density correction dye, wherein:the spectral absorbance maximum of the density correction dye is in the range of 450-485 nm;the ratio of the absorbance of the density correction dye at 480 nm relative to 420 nm is between 1.2 and 3.5;the ratio of the absorbance of the density correction dye at 440 nm relative to 420 nm is between 1.25 and 2.5;the ratio of the absorbance of the density correction dye at 510 nm relative to 480 nm is less than 0.6; andthe density correction dye is uncharged and is free of carboxyl and sulfonate groups.The element exhibits improved color balance permitting it to be satisfactorily processed together with conventional photographic elements to produce viewable color images.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: September 22, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Barrett Merkel, Melvin Michael Kestner, David Hoke
  • Patent number: 5800971
    Abstract: The invention provides a multilayer color negative photographic element comprising a support, at least one light-sensitive silver halide emulsion layer sensitive to each of the blue, green and red regions of the visible spectrum, one or more yellow or orange-yellow cyano benzoxazolyl or cyano benzothiazolyl arylidene type methine filter or density correction dyes of structure I, below, codispersed with one or more hydroquinone, catechol or sulfonamidophenol reducing agents, ##STR1## wherein: R.sub.1 is hydrogen or an alkyl group;R.sub.2 is an alkyl group or an aryl group;R.sub.3 is hydrogen, a halogen, an alkyl group, an alkoxy group or an aryloxy group;R.sub.4 is hydrogen or an alkyl group;R.sub.5 is hydrogen or an alkyl group;R.sub.6 is hydrogen or an alkyl group;X is oxygen or sulfur;each R.sub.
    Type: Grant
    Filed: January 5, 1996
    Date of Patent: September 1, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Leo Zengerle, Paul Barrett Merkel
  • Patent number: 5795706
    Abstract: A silver halide color photographic light-sensitive material is described, which comprises a support having provided thereon 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, wherein at least one of said blue-, green- and red-sensitive silver halide emulsion layers comprises a low-, medium- and high-sensitivity silver halide emulsion layers provided in this order from the side near to the support, the average grain thickness of all silver halide grains in the low-sensitivity silver halide emulsion layer is from 0.15 to less than 0.25 .mu.m, the average grain thickness of all silver halide grains in the medium-sensitivity silver halide emulsion layer is from 0.15 to less than 0.25 .mu.m and the average grain thickness of all silver halide grains in the high-sensitivity silver halide emulsion layer is from 0.15 to less than 0.25 .mu.m.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: August 18, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Mikio Ihama
  • Patent number: 5770354
    Abstract: Silver halide photographic element comprising a support having coated thereon red-, green- and blue-sensitive silver halide emulsion layers comprising, respectively, cyan, magenta and yellow dye-forming couplers, wherein the blue-sensitive emulsion layer comprises at least two blue-sensitive emulsion layers, the uppermost of which has the highest-sensitivity and the lowermost of which has the lowest sensitivity, characterized in that the uppermost highest sensitivity blue-sensitive silver halide emulsion layer comprises a yellow dye-forming coupler and a cyan dye-forming coupler.
    Type: Grant
    Filed: April 25, 1996
    Date of Patent: June 23, 1998
    Assignee: Imation Corp.
    Inventors: Sergio Massirio, Raffaella Biavasco, Flavio Costa
  • Patent number: 5750320
    Abstract: Silver halide light sensitive photographic print elements are disclosed comprising a support bearing on one side thereof: a blue color sensitive record comprising at least one blue-sensitive silver halide emulsion yellow-image forming layer, a red color sensitive record comprising at least one red-sensitive silver halide emulsion cyan-image forming layer, and a green color sensitive record comprising at least one green-sensitive silver halide emulsion magenta-image forming layer; wherein at least one of the color records has a fixed best fit contrast less than or equal to 2.2, wherein the fixed best fit contrast for a color record is defined as the slope of a straight line connecting a point B and a point C on the characteristic curve of Status A density versus log Exposure for the color record, where points B and C are located by defining a point A on the characteristic curve at the log Exposure required to attain a density level of 1.
    Type: Grant
    Filed: February 16, 1996
    Date of Patent: May 12, 1998
    Assignee: Eastman Kodak Company
    Inventors: Mitchell Joseph Bogdanowicz, Charles Peter Hagmaier, Leslie Gutierrez
  • Patent number: 5744291
    Abstract: This disclosure concerns with a method of producing 3D print materials and the structure thereof. In the preferred embodiment of the present invention, the 3D print material consists of a lenticular screen, an image forming layer and an anti-halation layer coated on the image forming layer opposite from the lenticular screen. When the thickness of the lenticular screen reaches a certain amount, it renders the coating of an image forming layer onto the lenticular screen too difficult or impractical. With such a thickness, it is advantageous to coat the image forming layer and the anti-halation layer on a clear polymer base, and then securely attach the coated polymer base to a bare lenticular screen with the aid of a bonding layer. Similarly, a parallax barrier plate can be used in lieu of a lenticular screen for producing 3D print materials.
    Type: Grant
    Filed: April 3, 1997
    Date of Patent: April 28, 1998
    Inventor: Sunny Leong-Pang Ip
  • Patent number: 5725999
    Abstract: The invention provides a multilayer color negative photographic element comprising a support, at least one light-sensitive silver halide layer sensitive to each of the blue, green and red regions of the visible spectrum, a magnetic recording layer and a yellow or orange-yellow methine density correction dye of structure I, ##STR1## wherein R.sub.1 is hydrogen or an alkyl group;R.sub.2 is an alkyl group or an aryl group;R.sub.3 is hydrogen, a halogen atom, an alkyl group, an alkoxy group or an aryloxy group;R.sub.4 is hydrogen or an alkyl group;R.sub.5 is hydrogen or an alkyl group;R.sub.6 is hydrogen or an alkyl group;X is oxygen or sulfur;each R.sub.7 is independently a substituent selected from the group consisting of a halogen atom, and alkyl, aryl, alkoxy, aryloxy, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, acyl, sulfamoyl, sulfonyl, sulfoxyl, alkylthio, arylthio and cyano groups;R.sub.1 and R.sub.2 or R.sub.2 and R.sub.3 may join to form a ring.
    Type: Grant
    Filed: December 19, 1995
    Date of Patent: March 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Barrett Merkel, Melvin Michael Kestner, David Hoke, Jeffrey Walter Schmoeger
  • Patent number: 5723263
    Abstract: A multicolor negative photographic element comprises a support bearing a blue light-sensitive silver halide emulsion first layer and a green light-sensitized silver halide emulsion second layer wherein said second layer contains a dye sensitized to green light and wherein said first layer has associated therewith a hue correction coupler which upon coupling with oxidized developer produces a dye having a maximum absorbance in the range of 460 to 510 nm. so that the element has a D480/D440 density ratio which is greater than that exhibited by the element without the hue correction coupler. The invention also encompasses a blue sensitive silver halide emulsion layer associated with the hue correction coupler and a method of forming an image in the photographic element of the invention.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Stephen Paul Singer, Paul Barrett Merkel, Jeffrey Walter Schmoeger
  • Patent number: 5719014
    Abstract: The invention provides a multilayer color negative photographic film comprising a support, at least one light-sensitive silver halide layer sensitive to each of the blue, green and red regions of the visible spectrum and a yellow or orange-yellow methine dye of structure I, ##STR1## wherein: R.sub.1 is hydrogen or an alkyl group;R.sub.2 is an alkyl group or an aryl group;R.sub.3 is hydrogen, a halogen atom (such as chlorine or fluorine), an alkyl group, an alkoxy group or an aryloxy group;R.sub.4 is hydrogen or an alkyl group;R.sub.5 is hydrogen or an alkyl group;R.sub.6 is hydrogen or an alkyl group;X is oxygen or sulfur;each R.sub.7 is independently a substituent selected from the group consisting halogen atoms, and alkyl, aryl, alkoxy, aryloxy, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl, aryloxycarbonyl, acyloxy, acyl, sulfamoyl, sulfonyl, sulfoxyl, sulfonyloxy, alkylthio, arylthio, and cyano groups;n is 0, 1, 2 or 3; andR.sub.1 and R.sub.2 or R.sub.2 and R.sub.3 may join to form a ring.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul Barrett Merkel, Melvin Michael Kestner, James Anthony Friday
  • Patent number: 5716764
    Abstract: The invention provides a multilayer silver halide color negative photographic element comprising in the same layer a cyan dye of formula (I) and a ballasted stabilizer compound of formula (II), where the respective formulas are: ##STR1## andB--L--A--R (II)wherein:the substiuents are as defined herein the specification.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: February 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: John Brian Rieger, Charles Leo Bauer
  • Patent number: 5705327
    Abstract: Color negative photographic films having red, green and blue color sensitive records, wherein the ratio of the toe area contrast to the mid-scale contrast for each of the red, green and blue color records is less than or equal to 0.80, and either at least two color records having a toe-area contrast less than or equal to 0.42 or a mid-scale contrast less than or equal to 0.55, or the film having a speed rating of ISO 200 or greater. The mid-scale contrast for a color record is defined as the slope of a straight line connecting a point C and and a point D on the characteristic curve of Status M density versus log Exposure for the color record, where points C and D are located by defining a point A on the characteristic curve at a density level 0.1 above minimum density, a point B is located on the characteristic curve at an exposure value +1.0 Log Exposure beyond point A, and points C and D are located at exposure values -0.45 log Exposure and +0.45 log Exposure with respect to point B, respectively.
    Type: Grant
    Filed: September 16, 1996
    Date of Patent: January 6, 1998
    Assignee: Eastman Kodak Company
    Inventors: John Charles Brewer, John Tyler Keech, John Frank Sawyer
  • Patent number: 5679504
    Abstract: A color photographic silver halide material which contains as photosensitive layers on a support at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, in which, above a photosensitive layer (seen from the support outwards), at least one further layer is provided which contains a colorless compound or combination of colorless compounds, which under processing conditions after exposure gives rise to a uniform, slight color density of a predetermined color and predetermined density over the entire surface, allows correction of the print densities without sensitivity being reduced.
    Type: Grant
    Filed: December 6, 1995
    Date of Patent: October 21, 1997
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Ralf Buscher, Peter Bell, Johannes Willsau, Hans-Ulrich Borst
  • Patent number: 5674665
    Abstract: A color negative photographic film wherein on the curve of density versus log E for each color sensitive record: (1) a straight line, which connects the point at density Dmin+0.1 and the point at 1.5log E above the exposure required for density Dmin+0.2, has a mathematical slope .ltoreq. 0.50; and (2) the difference in log E is .gtoreq.1.7 between the point 0.9log E above the exposure required for density Dmin+0.2 and the point where the density difference is 0.1 between the curve and the straight line which results from a linear regression of the three density points at exposures 0.3log E, 0.9log E, and 1.5log E above the exposure required for the density Dmin+0.2; and (3) the difference in log E is .gtoreq.1.20 between the exposure needed for density Dmin+0.1 and the point that corresponds to the exposure, in lux-seconds, of 9.2/(Film Speed). The exposure of the foregoing gray card is a typical normal exposure based on the film speed rating (i.e. the film is not overexposed or underexposed).
    Type: Grant
    Filed: November 17, 1995
    Date of Patent: October 7, 1997
    Assignee: Eastman Kodak Company
    Inventors: John Frank Sawyer, Michael Paul Keyes, John Charles Brewer, John Tyler Keech, Elizabeth Laura Kelly
  • Patent number: 5658718
    Abstract: 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: Grant
    Filed: December 22, 1995
    Date of Patent: August 19, 1997
    Assignee: Imation Corp
    Inventors: Anna Maria Canuti, Roberto Sardelli, Massimo Bertoldi
  • Patent number: 5658717
    Abstract: 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: Grant
    Filed: December 22, 1995
    Date of Patent: August 19, 1997
    Assignee: Imation Corp.
    Inventors: Anna Maria Canuti, Roberto Sardelli, Massimo Bertoldi
  • Patent number: 5654123
    Abstract: Multilayer color photographic elements are described which contain a release compound that during photographic processing provides an imagewise distribution of a nucleophile which can react with a uniform distribution of a sulfinate blocked dye moiety contained in the element to release a solubilized unblocked dye.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: August 5, 1997
    Assignee: Eastman Kodak Company
    Inventors: Xiqiang Yang, Zbyslaw R. Owczarczyk, Daniel L. Kapp
  • Patent number: 5616453
    Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon a red-sensitive layer, a green-sensitive layer and a yellow dye-forming blue-sensitive layer, wherein the photographic material satisfies a specified relation, which is concerned with latent image keeping thereof. Further, at least one light-sensitive layer of the photographic material comprises a silver halide emulsion layer containing internally reduction-sensitized silver halide grains.
    Type: Grant
    Filed: August 25, 1995
    Date of Patent: April 1, 1997
    Assignee: Konica Corporation
    Inventors: Tadanobu Sekiya, Hideaki Haraga
  • Patent number: 5612173
    Abstract: A photographic element containing a dye which when released from a coupler has a sufficiently low pKa, generally less than about 5, such that the dye remains substantially or fully ionized during coating of the film and in the produced film, results in an element containing a dye which has the desired hue without the use of additional additives, such as mordants, to keep the dye ionized. The dye is also useful in photographic elements without release from a coupler, for example, as a filter dye.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: March 18, 1997
    Assignee: Eastman Kodak Company
    Inventors: Gary S. Proehl, Stephen P. Singer, J. Michael Buchanan
  • Patent number: 5580713
    Abstract: A silver halide color reversal photographic light-sensitive material includes 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, formed on a support. At least one light sensitive emulsion layer contains silver halide grains having a silver halide phase formed in the presence of an iodide ion-releasing agent, under controlled release of iodide ions from the releasing agent. At least one hydrophilic colloid layer contains a certain heterocyclic compound or a certain DIR compound.
    Type: Grant
    Filed: January 23, 1995
    Date of Patent: December 3, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takefumi Hara, Makoto Kikuchi, Hisashi Okamura