Identified Cyan Dye Color Patents (Class 430/384)
  • Patent number: 5674666
    Abstract: The invention provides a photographic element which comprises a light-sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler having the formula: ##STR1## wherein: R.sub.1 represents an alkyl or aryl group;R.sub.2 represents an alkyl group of 2 to 4 carbon atoms;Ar represents an aryl group; andZ represents a hydrogen atom or a group capable of being split off by reaction of the coupler with an oxidized color developing agent.Such elements provide an improved cyan dye hue upon development.
    Type: Grant
    Filed: October 31, 1996
    Date of Patent: October 7, 1997
    Assignee: Eastman Kodak Company
    Inventors: Philip T. Lau, Louis J. Rossi, Stanley W. Cowan
  • Patent number: 5631122
    Abstract: A silver halide color photographic material having provided on a support at least one light-sensitive silver halide emulsion layer, wherein said photographic material contains a coupler of formula (I) and at least one coupler selected from the group consisting of couplers represented by formula (II) and (III), wherein the substituents are as defined herein the specification. ##STR1## The material has improved coloring capacity and color image fastness and fluctuation of the properties of the material due to variation of the processing conditions is reduced.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: May 20, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Katsuyoshi Yamakawa
  • Patent number: 5578441
    Abstract: There is disclosed a silver halide color photographic material having a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a blue-sensitive silver halide emulsion layer, which comprises a cyan dye-forming coupler represented by formula (Ia) and (a) a sensitizing dye containing a sulfonamide group, (b) negative-type internal latent image-type silver halide grains chemically sensitized to a defined depth from the surface, (c) grains each having a defined spectral sensitivity distribution and a DIR-hydroquinone, (d) a monodisperse silver halide emulsion, (e) non-photosensitive silver halide emulsion wherein the inside or the surface of grains is fogged, (f) a colloidal silver, or (g) a DIR-hydroquinone: formula (Ia) ##STR1## wherein the substituents are as defined herein the specification.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: November 26, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Satoshi Nagaoka, Kazuyoshi Yamakawa, Mitsuru Yamamoto, Makoto Suzuki, Yasuhiro Shimada, Katsuro Nagaoka, Hideo Ikeda, Takefumi Hara, Sadanobu Shuto
  • Patent number: 5578436
    Abstract: There is disclosed a silver halide color photographic material having a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a blue-sensitive silver halide emulsion layer, which comprises a cyan dye-forming coupler represented by formula (I) and (a) a monodisperse silver halide emulsion, (b) non-photosensitive silver halide emulsion wherein the inside or the surface of grains is fogged, (c) a colloidal silver, (d) negative-type interval latent image-type silver halide grains chemically sensitized to a defined depth from the surface, (e) a sensitizing dye containing a sulfonamide group, (f) three separated layers of high, medium, and low sensitivities, (g) two separated layers each having different content of iodine, (h) grains each having a defined spectral sensitivity distribution and a DIR-hydroquinone, or (i) a DIR-hydroquinone: formula (I) ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituent, R.sup.
    Type: Grant
    Filed: May 30, 1995
    Date of Patent: November 26, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takefumi Hara, Kazuyoshi Yamakawa, Sadanobu Shuto, Mitsuru Yamamoto, Makoto Suzuki, Yasuhiro Shimada, Katsuro Nagaoka, Satoshi Nagaoka, Yoshihiko Shibahara, Hideo Ikeda
  • Patent number: 5512103
    Abstract: The invention provides a cyan color producing silver halide emulsion layer or a magenta color producing silver halide emulsion layer wherein said at least one layer has an exposure range of at least 0.6 log E from the point where the instantaneous contrast is 1.0 and wherein the instantaneous contrast of said layer increases as a function of increasing exposure over at least 70 percent of said exposure range.
    Type: Grant
    Filed: January 19, 1995
    Date of Patent: April 30, 1996
    Assignee: Eastman Kodak Company
    Inventors: James L. Edwards, Eric L. Bell, Benjamin T. Chen, Richard L. Parton
  • Patent number: 5508148
    Abstract: A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler dispersed in an organic solvent, the coupler having the formula: ##STR1## wherein A, B, and C are hydrogen or fluoride;X is selected from the group consisting of halogen, alkoxy and methyl groups;R is an aromatic or aliphatic group and n is 1 or 2;R' is a substituent group and m is from 0 to 4;COG is hydrogen or a coupling-off group capable of being split-off by an oxidized color developer; andwherein the substituent groups X, R, and R' are selected so as to ballast the coupler and keep it from wandering within the photographic elements.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: April 16, 1996
    Assignee: Eastman Kodak Company
    Inventors: Philip T. S. Lau, Thomas H. Jozefiak, Thomas R. Welter
  • Patent number: 5476757
    Abstract: A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler dispersed in an organic solvent, the coupler having the formula: ##STR1## wherein A, B, and C are hydrogen or fluorine;X is selected from the group consisting of halogen, alkoxy and methyl groups;R is a straight chain aliphatic group which is unsubstituted or substituted with one or members selected from the group consisting of --F, --R", --OR", --SO.sub.2 R", --SO.sub.2 NHR", --CONHR", --COOR", --NHCOR", --NHSO.sub.2 R", and --OCOR" where R" is a primary or secondary alkyl group;R' is a substituent group and m is from 0 to 4;COG is hydrogen or a coupling-off group capable of being split-off by an oxidized color developer; andwherein the substituent groups X, R, and R' are selected so as to ballast the coupler and prevent it from wandering within the photographic coatings.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: December 19, 1995
    Assignee: Eastman Kodak Company
    Inventors: Philip T. S. Lau, Thomas H. Jozefiak, Thomas R. Welter
  • Patent number: 5462847
    Abstract: A silver halide color photographic material is provided comprising at least one yellow-developable silver halide emulsion layer, at least one magenta-developable silver halide emulsion layer and at least one cyan-developable silver halide emulsion layer on a support, characterized in that said at least one cyan-developable silver halide emulsion layer comprises at least one cyan dye-forming coupler represented by the following general formula (Ia) and silver bromochloride or silver chloride emulsion grains substantially free of silver iodide having a silver chloride content of 95 mol % or more spectrally sensitized with at least one sensitizing dye having a reduction potential of -1.27 V (vs. SCE) or lower: ##STR1## wherein Za represents --NH-- or --CH(R.sub.3)--; Zb and Zc each represents --C(R.sub.4).dbd. or --N.dbd.; R.sub.1, R.sub.2 and R.sub.3 each represents an electron withdrawing group having a Hammett's substituent constant .sigma..sub.p value of 0.20 or more, with the proviso that the sum of .sigma.
    Type: Grant
    Filed: June 2, 1993
    Date of Patent: October 31, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Shigeaki Otani
  • Patent number: 5460929
    Abstract: There is disclosed a silver halide color photographic material having a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a blue-sensitive silver halide emulsion layer, which comprises a cyan dye-forming coupler represented by formula (Ia) and (a) a sensitizing dye containing a sulfonamide group, (b) negative-type internal latent image-type silver halide grains chemically sensitized to a defined depth from the surface, (c) grains each having a defined spectral sensitivity distribution and a DIR-hydroquinone, (d) a monodisperse silver halide emulsion, (e) non-photosensitive silver halide emulsion wherein the inside or the surface of grains is fogged, (f) a colloidal silver, or (g) a DIR-hydroquinone: ##STR1## wherein Za represents --NH-- or --CH(R.sub.3)--, Zb and Zc each represent --C(R.sub.4).dbd. or --N.dbd., R.sub.1, R.sub.2, and R.sub.3 each represent an electron-attracting group wherein the Hammett substituent constant .sigma..sub.p value is 0.
    Type: Grant
    Filed: April 14, 1993
    Date of Patent: October 24, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Satoshi Nagaoka, Kazuyoshi Yamakawa, Mitsuru Yamamoto, Makoto Suzuki, Yasuhiro Shimada, Katsuro Nagaoka, Hideo Ikeda, Takefumi Hara, Sadanobu Shuto
  • Patent number: 5457008
    Abstract: The invention provides a photographic element comprising a light-sensitive photographic silver halide emulsion having associated therewith a coupler compound having the formula: ##STR1## wherein X represents a hydrogen atom or a coupling-off group;m is an integer from 0 to 4, n is 1 or 2, and p is an integer from 0 to 4; andA, B, and R each independently represent a substituent group.
    Type: Grant
    Filed: December 19, 1994
    Date of Patent: October 10, 1995
    Assignee: Eastman Kodak Company
    Inventors: Philip T. S. Lau, Thomas H. Jozefiak, Thomas R. Welter
  • Patent number: 5453348
    Abstract: An image forming method for silver halide color photographic light-sensitive material is disclosed. The method is excellent in stability and rapidness of processing. And in the photographic color image formed by the method, staine formation due to storage is inhibited in unimaged area of the picture. The method is comprises steps of developing an imagewise exposed silver halide color photographic material with a color developer, bleaching with a bleaching solution, immediately after the developing step, and treating, after the bleaching step, with a solution having fixing capability. The bleaching solution contains a ferric complex salt of a compound represented by the following formula A, and the solution having fixing capability contains at least one of thiocyanate and an iodide in a total amount of not less than 0.5 mol per liter of the solution, ##STR1## wherein A, through A.sub.4 are each a --CH.sub.2 OH group, a --COOM group or a --PO.sub.3 M.sup.1 M.sub.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: September 26, 1995
    Assignee: Konica Corporation
    Inventors: Satoru Kuse, Masao Ishikawa, Shigeharu Koboshi
  • Patent number: 5445924
    Abstract: There is disclosed a method for forming a color image using a silver halide color photographic material having three silver halide photosensitive layers on a support, comprising, in a cyan color-forming coupler-containing photosensitive layer, a cyan dye-forming coupler represented by formula (I) or (II), wherein said photographic material is exposed by a scanning exposure system and then is subjected to color development processing: ##STR1## wherein Za and Zb each represent --C(R.sub.3).dbd. or --N.dbd., provided that one of Za and Zb represents --N.dbd. and the other represents --C(R.sub.3).dbd.; R.sub.1 and R.sub.2 each represent an electron-attracting group; R.sub.3 represents a hydrogen atom or a substituent; and X represents a hydrogen atom or a coupling-off group, provided that R.sub.1, R.sub.2, R.sub.3, or X may be a divalent group, to form a dimer or higher polymer, or to bond to a polymer chain to form a homopolymer or copolymer.
    Type: Grant
    Filed: February 19, 1993
    Date of Patent: August 29, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Kawai
  • Patent number: 5441863
    Abstract: Novel imidazo[3,2-a]imidazole cyan dye-forming couplers and photographic elements containing them are described. The couplers are represented by the following structure: ##STR1## wherein: EWG.sub.1 and EWG.sub.2 each independently represent an electron withdrawing group;X is hydrogen or a coupling-off group; andR.sup.1 is hydrogen or a substituent group.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: August 15, 1995
    Assignee: Eastman Kodak Company
    Inventors: Ping W. Tang, Thomas H. Jozefiak, David J. Decker
  • Patent number: 5437967
    Abstract: A silver halide color photographic light-sensitive material capable of providing a dye image having excellent color reproducibility, less fading of cyan, magenta and yellow colors and a dye image fastness with a good balance of the three colors, comprise a support and provided thereon a silver halide light-sensitive layer containing a cyan coupler, a silver halide light-sensitive layer containing a magenta coupler, and a silver halide light-sensitive layer containing a yellow coupler, wherein the silver halide light-sensitive layer containing the cyan coupler contains at least one pyrrolotriazole cyan couplers represented by the following Formula (I) or (II) as a cyan coupler and the silver halide light-sensitive layer containing the magenta coupler contains a pyrazoloazole magenta coupler represented by the following Formula (M) as a magenta coupler: ##STR1## wherein the substituents are defined herein the specification.
    Type: Grant
    Filed: April 18, 1994
    Date of Patent: August 1, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Makoto Suzuki
  • Patent number: 5434034
    Abstract: There is disclosed a silver halide color photographic material and a method for forming a color image using said color photographic material. The silver halide color photographic material comprises silver halide emulsion grains comprising silver chlorobromide having a high silver chloride content and being substantially free from silver iodide, and a cyan dye-forming coupler represented by formula (I) or (II), and said silver halide emulsion grains being formed by adding a water-soluble bromide at the grain formation step, and/or during the period from the completion of the formation of the grains to the coating of the cyan dye-forming layer onto the support: ##STR1## wherein Za and Zb each represent --N.dbd. or --C(R.sub.3).dbd., with one of Za and Zb being --N.dbd. and the other being --C(R.sub.3).dbd.; R.sub.1 and R.sub.2 each represent an electron-attracting group, whose Hammett substituent constant .sigma..sub.p value is 0.20 or more, with the sum of the .sigma..sub.p values of R.sub.1 and R.sub.
    Type: Grant
    Filed: April 15, 1993
    Date of Patent: July 18, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masahiro Asami
  • Patent number: 5427896
    Abstract: A method for processing a color photographic material comprising a support having on at least one surface thereof at least one layer containing a light-sensitive silver halide emulsion and a non-diffusing oil-soluble coupler capable of forming a dye by coupling with the oxidation product of an aromatic primary amine developing agent, wherein the oil-soluble dye is a pyrrolotriazole cyan coupler and the color photographic material is processed after color development with a bath containing, as a fixing agent, at least one of nitrogen-containing heterocyclic compounds having a sulfide group, meso-ionic compounds and thioether compounds.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: June 27, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroshi Hayashi
  • Patent number: 5427897
    Abstract: A method for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least a silver halide emulsion layer containing a cyan dye-forming coupler, a silver halide emulsion layer containing a magenta dye-forming coupler, and a silver halide emulsion layer containing a yellow dye-forming coupler: wherein the silver halide color photographic material contains at least one cyan dye-forming coupler represented by the following general formula (I) or (II) in the silver halide emulsion layer containing the cyan dye-forming coupler: and wherein the processing comprises color developing the imagewise exposed silver halide color photographic material with a color developer containing a p-phenylenediamine derivative represented by the following general formula (III): ##STR1## wherein the substituents are defined herein the specification.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: June 27, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koichi Nakamura, Masato Taniguchi
  • Patent number: 5415982
    Abstract: A color image-forming method wherein a cyan dye image having an excellent hue and less fading due to light and humidity can be obtained and the discharge amount of a processing solution can be reduced is disclosed, which comprises subjecting a silver halide color photographic light-sensitive material comprising a support, having provided thereon 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, a light-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and a non-light-sensitive hydrophilic colloid layer, to an exposure and then to a color development with a color developing solution, wherein the above silver halide color photographic light-sensitive material contains at least one scarcely water soluble epoxy compound having at least one group represented by Formula (AO) in at least one layer of the silver halide emulsion layers and non-light-sensitive hydrop
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: May 16, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuaki Deguchi
  • Patent number: 5415990
    Abstract: A novel cyan coupler for photographic dye, a process of forming a dye using the coupler and a photographic material containing the cyan coupler are disclosed. The coupler is represented by formula ##STR1## R, R.sub.1, X, m and n are defined in the specification.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: May 16, 1995
    Assignee: Konica Corporation
    Inventors: Yutaka Kaneko, Rudchenko F. Vladimir, Satoru Ikesu
  • Patent number: 5415981
    Abstract: A method of forming a photographic colour image which comprises imagewise exposing a photographic silver halide colour material and processing it with an alkaline developer solution in the presence of a sulphonhydrazide developer and a heteroarylacetonitrile colour coupler thus forming a dye image by reaction of oxidised colour developing agent and the colour coupler. A colour photographic material is also provided having at least two colour-forming units sensitive to different regions of the spectrum, each having a silver halide emulsion layer, characterised in that the material contains in or adjacent said layer, a ballasted photographic colour coupler and a ballasted sulphonhydrazide colour developing agent incorporated therein in droplets of a high boiling solvent and in which the colour coupler is a heteroarylacetonitrile.
    Type: Grant
    Filed: March 4, 1993
    Date of Patent: May 16, 1995
    Assignee: Eastman Kodak Company
    Inventors: David Clarke, Paul L. Stanley
  • Patent number: 5415985
    Abstract: Disclosed is a silver halide color photographic material which contains at least one pyrroloazole compound as cyan coupler and has a layer structure in which a cyan coupler-containing silver halide emulsion layer is disposed in the position nearer to a support than at least either a magenta coupler-containing silver halide emulsion layer or a yellow coupler-containing silver halide emulsion layer, whereby ensuring excellent color reproducibility and high fastness in color images.
    Type: Grant
    Filed: April 27, 1993
    Date of Patent: May 16, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidekazu Sakai, Yasuhiro Shimada
  • Patent number: 5403704
    Abstract: A silver halide color photographic material which contains at least one pyrrolotriazole cyan coupler having two electron attracting groups and at least one non-color forming, nondiffusing compound.
    Type: Grant
    Filed: February 22, 1993
    Date of Patent: April 4, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Yoshioka, Shigeo Hirano, Makoto Suzuki
  • Patent number: 5401624
    Abstract: A silver halide color photosensitive material which forms a cyan dye that has superior heat resistance and that will not readily fade in a reducing atmosphere. The silver halide color photosensitive material contains in at least one layer on a support at least one coupler represented by formula (I): ##STR1## wherein R.sup.1 represents hydrogen atom or a substituent; R.sup.2 represents a substituent; X represents hydrogen atom or a group releasable on a coupling reaction with an oxidation product of a color developing agent; Z.sup.1 represents a nonmetallic atom group necessary for forming a nitrogen-containing, six-membered, heterocyclic ring which has at least one dissociative group: Z.sup.1 cannot be --C(.dbd.O)--N(R)--C(.dbd.O)--NH--; and R represents a substituent.Also disclosed is a novel dye forming coupler which exhibits a high coupling activity and which gives a dye having a large molar extinction coefficient and superior stability, the coupler being represented by the following formula (XX) or (XXI).
    Type: Grant
    Filed: November 4, 1993
    Date of Patent: March 28, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Sato, Yoshio Ishii, Katsuyoshi Yamakawa
  • Patent number: 5399467
    Abstract: Novel photographic silver halide materials contain dye-forming couplers represented by formula (I): ##STR1## wherein K is a coupler moiety based on pyrazolone, phenol, naphthol, enamine, or acylacetamide to which the ballast group is attached, are useful in photographic materials and processes. The containing the couplers exhibit increased coupling activity, and provide formation of dyes having improved maximum magenta image dye density, contrast, and development speed.
    Type: Grant
    Filed: October 29, 1993
    Date of Patent: March 21, 1995
    Assignee: Eastman Kodak Company
    Inventors: Sundaram Krishnamurthy, Stanley W. Cowan
  • Patent number: 5397691
    Abstract: A silver halide color photo-graphic light-sensitive material having an excellent performance in a rapid processing and color reproduction and providing a stable photographic performance against a composition change in a processing solution is disclose, which comprises a support and provided thereon a photographic constitutional layer comprising each at least one layer of 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 at least one non-light-sensitive layer, wherein the above silver halide emulsion layer containing the cyan dye-forming coupler contains (i) at least one of specific pyrroloazole cyan couplers, and (ii) (a) silver bromochloride grains having a silver chloride content of 90 mole % or more or silver chloride grains, each chemically sensitized with a gold compound or (b) silver br
    Type: Grant
    Filed: May 28, 1993
    Date of Patent: March 14, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyohito Takada, Kentaro Okazaki
  • Patent number: 5385815
    Abstract: A photographic element comprising a UV absorbing polymer latex which is loaded with a non-polymeric UV absorbing compound. The polymer is a homopolymer or heteropolymer comprising monomeric units containing a 2-hydroxybenzotriazole. The benzotriazole preferably is of the formula I: ##STR1## wherein: the phenyl ring and benzo ring are optionally additionally substituted; and one of m and n is 1, and M and N have the formula: ##STR2## wherein R3 is H or an alkyl group; L is a bivalent linking group; and p is 0 or 1. The elements may additionally have a polmer present (which is preferably different from the UV absorbing polymer) which has a glass transition temperature (T.sub.g) of less than 5.degree. C.
    Type: Grant
    Filed: December 29, 1993
    Date of Patent: January 31, 1995
    Assignee: Eastman Kodak Company
    Inventors: Edward Schofield, Richard P. Szajewski
  • Patent number: 5384235
    Abstract: A photographic element with particular polymeric ultraviolet absorbers. The ultraviolet absorbers have repeating units of the formula: ##STR1## wherein: X is O or NH;Y is H or halogen;R.sub.1 is selected from the group consisting of H, halogen, alkoxy , straight chain or branched alkyl group of 1 to 8 carbons;R.sub.2 is C.sub.2 -C.sub.10 alkylene which may be straight chain or branched; andR.sub.3 is H or CH.sub.3.Elements of the invention have good fresh Dmin and image dye stability, and the ultraviolet absorbers therein are highly light stable.
    Type: Grant
    Filed: July 1, 1992
    Date of Patent: January 24, 1995
    Assignee: Eastman Kodak Company
    Inventors: Tien-Teh Chen, Edward Schofield, Hwei-Ling Yau, Lal C. Vishwakarma
  • Patent number: 5384236
    Abstract: A silver halide color photographic material comprising a support having provided thereon at least one layer containing at least one cyan coupler represented by formula (I) ##STR1## wherein R.sub.1 and R.sub.2 each represent a substituent except methyl group;R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each represent a hydrogen atom or a substituent;Z represents a non-metallic atom or a non-metallic atomic group necessary for forming a ring and the non-metallic atomic group of Z may optionally be substituted by substituent(s); andX represents a hydrogen atom, or a group of splitting off from the formula by coupling reaction with an oxidation product of an aromatic primary amine color developing agent.
    Type: Grant
    Filed: June 8, 1994
    Date of Patent: January 24, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koushin Matsuoka, Yasuhiro Shimada, Hiroyuki Yoneyama
  • Patent number: 5380625
    Abstract: A method for processing a silver halide color photographic material, which comprises processing an image-wise exposed silver halide color photographic material comprising at least one silver halide emulsion layer and containing an N,N-substituted malondiamide type coupler with a color developer containing an aromatic primary amine color developing agent represented by the following general formula (D) or (E): ##STR1## In a preferred embodiment, the photographic light-sensitive material contains a cyan coupler represented by the following general formula (C): ##STR2##
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: January 10, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Masato Taniguchi, Naoki Saito
  • Patent number: 5370978
    Abstract: Disclosed is a silver halide color photographic material which contains the combination of a pyrroloazole type cyan coupler and a carboxylic acid ester type high boiling organic solvent having a dielectric constant of at most 6.0 in a cyan color-forming silver halide emulsion layer and further contains a pyrazoloazole type magenta coupler in a magenta color-forming silver halide emulsion layer, thereby acquiring high color formability, excellent color reproducibility and preventing stains from generating in the white area after photographic processing.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: December 6, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Osamu Takahashi
  • Patent number: 5366856
    Abstract: A silver halide color photosensitive materials wherein a coupler represented by the formula indicated below is included in at least one layer on a support. In the formula, for example, Za represents --NH--, Zb represents --C(R.sub.4).dbd. and Zc represents --N.dbd.. R.sub.1, R.sub.2 and R.sub.3 each represents an electron withdrawing group of which the Hammett substituent group constant .sigma..sub.p value is 0.20 or above. However, the sum of the .sigma..sub.p values of R.sub.1 and R.sub.2 is 0.65 or above. R.sub.4, R.sub.a, R.sub.b, R.sub.c, R.sub.d and R.sub.e each represents a hydrogen atom or a substituent group. However, for example at least one of R.sub.a, R.sub.b, R.sub.c, R.sub.d and R.sub.e represents an electron withdrawing group, and the sum of the Hammett substituent group constant .sigma..sub.p values of each of R.sub.a, R.sub.b, R.sub.c, R.sub.d and R.sub.e is 0.5 or above.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: November 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Shimada, Hiroyuki Yoneyama
  • Patent number: 5352573
    Abstract: A silver halide color photographic light-sensitive material having an improved color forming property, color reproducibility and image preservative performance is described. The light-sensitive material comprises a support having provided thereon at least one silver halide emulsion layer comprising (a) a cyan dye-forming coupler represented by the following formulas (I) or (II): ##STR1## wherein Za, Zb, R.sub.1, R.sub.2 and X represent substituents described herein; (b) a compound represented by the following formula (A): ##STR2## wherein R.sub.a1 -R.sub.a6 represent substituents described herein.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: October 4, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Yasuhiro Yoshioka, Makoto Suzuki, Masakazu Morigaki
  • Patent number: 5348847
    Abstract: Disclosed is a silver halide color photographic material comprising a support having thereon at least one layer containing one or more cyan couplers of formula (I): ##STR1## wherein R.sub.11 represents a branched or cyclic alkyl group, a branched or cyclic alkoxy group, a substituted aryl group, or a substituted aryloxy group; R.sub.21 represents a substituent which may optionally be substituted. R.sub.12 represents an aliphatic group, an aryl group, a heterocyclic group, an alkoxy group, an aryloxy group, an alkylamino group, an anilino group, a heterocyclic-oxy group, or a heterocyclic-amino group; R.sub.22 and R.sub.32 each represents a substituent; r.sub.2 represents an integer of from 0 to 4; provided that when r.sub.2 is a plural number, the plurality of R.sub.32 groups may be the same or different; R.sub.13, R.sub.23 and R.sub.33 each represent a hydrogen atom or a substituent; provided that the total of Taft's substituent constant .sigma.* values of R.sub.13, R.sub.23 and R.sub.33 is 1.5 or more; R.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: September 20, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Osamu Takahashi, Yasuhiro Shimada, Koushin Matsuoka, Yasuhiro Yoshioka
  • Patent number: 5342747
    Abstract: Disclosed is a silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer containing a pyrrolotriazole cyan coupler and a specific lipophilic compound. The color photographic material have improved color reproducibility and preservability.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: August 30, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Yasuhiro Yoshioka, Nobuo Seto
  • Patent number: 5342740
    Abstract: A method of processing an imagewise exposed silver halide color photographic material is disclosed, wherein the photographic material comprises a support having thereon a photosensitive silver halide emulsion layer containing a silver halide emulsion having a silver chloride content of at least 80 mol %. The processing method comprises the steps of color developing the photographic material in a color developing solution, and then bleach-fixing in a bleach-fixing solution, further comprising replenishing the bleach-fixing solution as the photographic material is processed by adding thereto a regenerated bleach-fixing replenisher and collecting the resulting overflow solution from the bleach-fixing tank, the regenerated bleach-fixing replenisher comprising a regenerating agent and the overflow solution from the bleach-fixing tank, and wherein the solids content of the regenerating agent is at least 70 wt % of the total weight of the regenerating agent.
    Type: Grant
    Filed: October 2, 1991
    Date of Patent: August 30, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masatoshi Goto, Takatoshi Ishikawa
  • Patent number: 5342742
    Abstract: A silver halide color photographic light-sensitive material capable of providing a dye image having an improved spectral absorption characteristic, excellent color reproducibility and yet a sufficiently low minimum density, comprises a support having thereon a silver halide emulsion layer containing a yellow dye-forming coupler, a silver halide emulsion layer containing a magenta dye-forming coupler, and a silver halide emulsion layer containing a cyan dye-forming coupler, wherein the silver halide emulsion layer containing the cyan dye-forming coupler contains at least one cyan coupler represented by the following formula (I) or (II) and the silver halide emulsion layer containing the yellow dye-forming coupler contains at least one yellow coupler represented by the following formula (III): ##STR1## With the substituents as defined herein the specification.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: August 30, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Makoto Suzuki, Takehiko Sato
  • Patent number: 5340706
    Abstract: A silver halide color photographic light-sensitive material capable of providing a dye image having excellent color reproducibility, less fading of cyan, magenta and yellow colors and a dye image fastness with a good balance of the three colors, comprise a support and provided thereon a silver halide light-sensitive layer containing a cyan coupler, a silver halide light-sensitive layer containing a magenta coupler, and a silver halide light-sensitive layer containing a yellow coupler, wherein the silver halide light-sensitive layer containing the cyan coupler contains at least one pyrrolotriazole cyan couplers represented by the following Formula (I) or (II) as a cyan coupler and the silver halide light-sensitive layer containing the magenta coupler contains a pyrazoloazole magenta coupler represented by the following Formula (M) as a magenta coupler: ##STR1## with the substituents as defined in the specification.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: August 23, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Makoto Suzuki
  • Patent number: 5338651
    Abstract: A silver halide color photographic light-sensitive material which provides a good color developability and an excellent color reproducibility in every hue comprises at least a cyan dye-forming emulsion layer, a magenta dye-forming emulsion layer and a yellow dye-forming emulsion layer, wherein the cyan dye-forming emulsion layer contains at least one cyan dye-forming coupler represented by the following Formula (I) or (II) and the yellow dye-forming emulsion layer contains at least one yellow dye-forming coupler represented by the following Formula (III) or (IV): ##STR1## to form a homopolymer or a copolymer; ##STR2## wherein X.sub.3 represents ##STR3## with the substituents as defined herein the specification.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: August 16, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Makoto Suzuki, Takehiko Sato
  • Patent number: 5326682
    Abstract: A silver halide color photographic material containing a novel cyan coupler and capable of forming a cyan dye having a high color density and an excellent light fastness. The photographic light-sensitive material contains at least one 1H-imidazo[1,5-a]imidazole cyan coupler represented by the following Formula (I) in at least one layer provided on a support: ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituent; R.sup.2 and R.sup.3 each represent a substituent, provided that at least one of R.sup.1, R.sup.2, R.sup.3 and represents an electron attractive group; and X represents a hydrogen atom or a group capable of splitting off upon a reaction with an oxidation product of a color developing agent.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: July 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsuyoshi Yamakawa
  • Patent number: 5326681
    Abstract: A silver halide color photosensitive material which forms a cyan dye that has superior heat resistance and that will not readily fade in a reducing atmosphere. The silver halide color photosensitive material contains in at least one layer on a support at least one coupler represented by formula (I): ##STR1##wherein R.sup.1 represents hydrogen atom or a substituent; R.sup.2 represents a substituent; X represents hydrogen atom or a group releasable on a coupling reaction with an oxidation product of a color developing agent; Z.sup.1 represents a nonmetallic atom group necessary for forming a nitrogen-containing, six-membered, heterocyclic ring which has at least one dissociative group: Z.sup.1 cannot be --C(.dbd.O)--N(R)-- C(.dbd.O)--NH--; and R represents a substituent.Also disclosed is a novel dye forming coupler which exhibits a high coupling activity and which gives a dye having a large molar extinction coefficient and superior stability, the coupler being represented by the following formula (XX) or (XXI).
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: July 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Sato, Yoshio Ishii
  • Patent number: 5306610
    Abstract: Disclosed is a photographic coupler represented by the formula 1: ##STR1## wherein R.sup.1, R.sup.2 and Y each represent hydrogen atom or a substituent; Z represents a non-metallic atomic group necessary for forming a 5- to 7-membered heterocyclic ring, and said 5- to 7-membered ring may have a substituent(s); and X represents hydrogen atom or a substituent which is eliminatable by the reaction with an oxidized product of a color developing agent, which is used for a light-sensitive silver halide color photographic material and a heat-processable light-sensitive material.
    Type: Grant
    Filed: April 1, 1993
    Date of Patent: April 26, 1994
    Assignee: Konica Corporation
    Inventors: Satoru Ikesu, Hiroshi Kita, Yutaka Kaneko
  • Patent number: 5292630
    Abstract: A silver halide color photographic material containing one or more imidazotriazole cyan couplers each having an electron attracting group with a .sigma.p of 0.35 or more in at least one layer on the support. The material provides a cyan color image having a sharp light absorption characteristic absorbing light having a relatively long wavelength falling within a narrow wavelength range. The imidazotriazole cyan coupler is of the following structural formula (I): ##STR1## where R.sub.1 represents a hydrogen atom or a substituent; R.sub.2 represents an electron attracting group having a Hammett's constant value .sigma.p of 0.35 or ore; X represents a hydrogen atom or a group released by coupling with an oxidation product of an aromatic primary amine color developing agent; and R.sub.1 or R.sub.2 may also be a divalent group forming a dimer or higher polymer, or they each may be bonded to a polymer chain to form a homopolymer or copolymer.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: March 8, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Shimada, Kozo Sato
  • Patent number: 5270153
    Abstract: A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing at least one 1H-pyrrolo[2,1-c][1,2,4]triazole cyan coupler represented by the following general formula (I) or (II): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom or a substituent, provided that at least one of R.sub.1 and R.sub.2 is an electron withdrawing group which has a Hammett's substituent constant .sigma.p value of 0.15 or more; R.sub.1 and R.sub.2 may be bonded to form a ring; and X represents a hydrogen atom or a substituent capable of being released upon coupling with an oxidation product of an aromatic primary amine color developing agent; said coupler may form a bis-compound or or a polymer at R.sub.1, R.sub.2, R.sub.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: December 14, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Tadahisa Sato, Kozo Sato, Yoshio Ishii
  • Patent number: 5262293
    Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a silver halide emulsion layer containing a coupler represented by the following formula I or II; ##STR1## wherein R.sub.1 is a hydrogen atom or a group having a Hammet's .sigma.p value of 0 or more; X1 is a hydrogen atom or a substituent capable of splitting off upon reaction with the oxidation product of a color developing agent; Y.sub.1 is a hydrogen atom or a substituent; and Z.sub.1 is a group of non- metal atoms necessary for forming an aromatic six-member heterocyclic ring which may have a substituent, ##STR2## wherein R.sub.2 and Y.sub.2 are independently a hydrogen atom or a substituent; X.sub.2 is a hydrogen atom or a substituent capable of splitting off upon reaction with the oxidation product of a color developing agent; and Z.sub.2 is a group of non-metal atoms necessary for forming an aromatic five-member heterocyclic ring which may have a substituent.
    Type: Grant
    Filed: September 29, 1992
    Date of Patent: November 16, 1993
    Assignee: Konica Corporation
    Inventors: Satoru Ikesu, Hiroshi Kita, Yutaka Kaneko
  • Patent number: 5260181
    Abstract: There is disclosed a cyan dye-forming coupler represented by formula (I) and a silver color photographic material containing same. ##STR1## wherein EWG represents an electron-attractive group having a Hammett substituent constant .sigma..sub.p value of 0.30 or more, R represents a substituent, l represents an integer of 0 to 2, X represents a hydrogen atom or a group capable of being released upon coupling reaction with the oxidized product of an aromatic primary amine derivative, R and EWG may bond together to form a ring, and when l is 2, two Rs may be the same or different or may bond together to form a ring.
    Type: Grant
    Filed: November 22, 1991
    Date of Patent: November 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Sato, Koshin Matsuoka, Yoshio Ishii
  • Patent number: 5256526
    Abstract: A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing at least one 1H-pyrrolo[1,2-b][1,2,4]triazole cyan coupler represented by the following general formula (I) or (II): ##STR1## wherein R.sub.1 and R.sub.2 each represents an electron withdrawing group having a Hammett's substituent constant .sigma.p value of 0.20 or more; R.sub.1 and R.sub.2 may be bonded to form a ring; the sum of a Hammett's substituent constant .sigma.p value of R.sub.1 and R.sub.2 is 0.65 or more; R.sub.3 represents a hydrogen atom or a substituent; and X represents a hydrogen atom or a substituent capable of being released upon coupling with an oxidation product of an aromatic primary amine color developing agent; said coupler may be in a form of a bis-compound or a polymer formed at R.sub.1, R.sub.2, R.sub.
    Type: Grant
    Filed: November 29, 1991
    Date of Patent: October 26, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Tadahisa Sato, Kozo Sato, Yoshio Ishii, Hideaki Naruse, Yasuhiro Shimada
  • Patent number: 5227287
    Abstract: There is disclosed a cyan dye-forming coupler represented by formula (I) and a silver halide color photographic material containing same. ##STR1## wherein EWG represents an electron-attractive group having a Hammett substituent constant .sigma..sub.p value of 0.30 or more, R.sub.1 and R.sub.2 each represent a substituent, l represents an integer of 0 or 1, X represents a hydrogen atom or a group capable of being released upon coupling reaction with the oxidized product of an aromatic primary amine derivative, and Y represents a hydroxyl group or a sulfonamido group.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: July 13, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Sato, Yoshio Ishii
  • Patent number: 5225320
    Abstract: Method of processing a silver halide color photosensitive material which comprises the steps of a developing process, a bleach-fixing solution or a fixing solution, and then, without washing with water, treated with a stabilizing solution. The method is characterized in that the silver halide color photo sensitive material comprises a high boiling point organic solvent having a dielectric constant of 3.5 or more and the stabilizing solution comprises silicone having the surface tension 20 to 60.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: July 6, 1993
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Satoru Kuse, Shigeharu Koboshi
  • Patent number: 5215872
    Abstract: A method of processing a silver halide color photographic material is disclosed, comprising a support having provided thereon at least one light-sensitive emulsion layer, which comprises the steps of color developing the material with a developer to which a replenisher is added and bleaching the developed material, wherein the material contains a coupler represented by the following general formula (I) and the amount of replenisher added to the color developer is 600 ml or less per m.sup.2 of the material: ##STR1## wherein A represents a coupler group, and when A is a phenol or naphthol coupler group, n is 1, and when A is any other coupler group, n is 0; and R represents an alkyl group having from 1 to 4 carbon atoms, or a pyridyl group. Images having excellent photographic characteristics are obtained by the method even though the amount of the replenisher is reduced.
    Type: Grant
    Filed: April 16, 1991
    Date of Patent: June 1, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masatoshi Goto, Keiji Mihayashi
  • Patent number: 5215871
    Abstract: A method of forming a cyan dye image in an exposed silver halide color photographic material comprising a support and a photosensitive silver halide emulsion, said method comprising developing the exposed silver halide color photographic material with a color developing solution containing an aromatic primary amine color developing agent in the presence of a cyan coupler represented by formula (I): ##STR1## wherein EWG.sub.1 and EWG.sub.2 each represents an electron attractive group having a Hammett's substituent constant .sigma..sub.p value of at least 0.30 or;R.sub.1 represents a hydrogen atom or a substituent;R.sub.2 represents a substituent;X represents a hydrogen atom or a group capable of splitting off by a coupling reaction with an oxidation product of an aromatic primary amine color developing agent;R.sub.1 and R.sub.2 may be bonded to each other to form a ring; provided that R.sub.2 must not be a halogen atom; and a silver halide color photographic material containing the cyan dye forming coupler.
    Type: Grant
    Filed: November 7, 1991
    Date of Patent: June 1, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Sato, Yoshio Ishii