And Antifoggant Or Color Stabilizer Patents (Class 430/551)
  • Patent number: 5457014
    Abstract: Melt crystallization of a photographic composition containing dispersed particles of a filter dye and dispersed particles of oxidized developer scavenger, in particular a hydrazide or a disulfonamidophenol oxidized developer scavenger, is inhibited by dispersing the oxidized developer scavenger in the composition in the form of particles comprising the oxidized developer scavenger dispersed or dissolved in an organic solvent selected such that the following relationship is satisfied:6.65+10.0 A-1.53 B+0.11 B.sup.2 -0.99 AB.ltoreq.4.0wherein A is the weight ratio of organic solvent to oxidized developer scavenger; and B is the log P of the organic solvent.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: October 10, 1995
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Glenn M. Brown, John B. Rieger
  • Patent number: 5455155
    Abstract: Undesirable dye stain in a photographic element containing a disulfonamidophenol oxidized developer scavenger can be significantly reduced when the disulfonamidophenol scavenger is in the form of a crystalline solid particle dispersion prepared by milling crystalline solid particles of the scavenger in an aqueous medium in the presence of a dispersing agent and in the substantial absence of an organic solvent.
    Type: Grant
    Filed: February 18, 1994
    Date of Patent: October 3, 1995
    Assignee: Eastman Kodak Company
    Inventors: Mary C. Brick, Norma B. Platt, Paul L. Zengerle, Jeffery L. Hall
  • Patent number: 5445926
    Abstract: Disclosed is a method for processing color photographic materials having a layer structure in which a cyan color-forming layer is disposed on the upper side of a pyrazoloazole type magenta coupler-containing magenta color-forming layer. A layer which does not contain any hydroquinones but contains a ultraviolet absorbent is provided above the cyan coupler-containing silver halide emulsion layer having a high chloride content, while below the cyan coupler-containing emulsion layer is provided another layer containing hydroquinones but not containing any ultraviolet absorbent. These materials are processed rapidly with a color developer under a reduced replenishment condition, wherein the amount of a color developer replenished is controlled to below 120 ml/m.sup.2, to provide color images fast to light and free from bluish unevenness in the edge part thereof.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: August 29, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazunori Hasebe
  • Patent number: 5441855
    Abstract: A color photographic material which contains in at least one blue-sensitive layer a yellow coupler and a compound of the formula (I) ##STR1## in which R.sub.1 means hydrogen or alkyl,R.sub.2 means hydrogen or alkyl,R.sub.3 means hydrogen or alkyl,1 means 1 to 20X ##STR2## or cycloalkene, R.sub.4 means hydrogen or alkyl,R.sub.5 means hydrogen or alkyl andn means 1 to 6,shows improved light-stability of the yellow dye obtained from said yellow coupler by exposure and processing.
    Type: Grant
    Filed: June 9, 1994
    Date of Patent: August 15, 1995
    Assignee: Agfa-Gevaert AG
    Inventors: Beate Weber, Jorg Hagemann, Gunter Helling, Markus Geiger
  • Patent number: 5441851
    Abstract: A photographic element with a support and a silver halide emulsion layer includes a two-equivalent pyrazolone magenta dye-forming coupler and a heterocyclic nitrogen addendum which is a protic imidazole or a pyridine. The heterocylic nitrogen compound reduces continued coupling of two-equivalent magenta dye-forming couplers after removal from a developer solution, obviating the need for a stop bath after the development stage.
    Type: Grant
    Filed: November 25, 1991
    Date of Patent: August 15, 1995
    Assignee: Eastman Kodak Company
    Inventors: Stephen P. Singer, Paul B. Merkel
  • Patent number: 5441862
    Abstract: A color photographic recording material with at least one silver halide emulsion layer and a color coupler associated with that layer, which contains in the silver halide emulsion layer or in an adjacent non-photosensitive binder layer a combination of a color coupler and a compound corresponding to general formula (I) or (II): ##STR1## in which R.sub.4 is the residue of a polymer produced by polycondensation andR.sub.1 to R.sub.3, m and n are as defined in the specification, ##STR2## in which R.sub.4 is as defined above and L.sub.1, L.sub.2, X, R.sub.5 to R.sub.11, p, q and r are as defined in the specification,is distinguished by improved stability of the image dyes produced from yellow couplers.
    Type: Grant
    Filed: October 27, 1994
    Date of Patent: August 15, 1995
    Assignee: Agfa-Gevaert AG
    Inventors: Beate Weber, Gunter Helling, Markus Geiger
  • Patent number: 5441861
    Abstract: A color photographic material with at least one silver halide emulsion layer which contains a color coupler distributed in a polymeric oil former and at least one compound of the formula (I) ##STR1## in which R means alkyl, cycloalkyl, alkenyl, aryl, acyl, alkylsulphonyl or arylsulphonyl,R.sub.1 means a chemical bond or a divalent bridging member,R.sub.2 and R.sub.3 mean alkyl, alkoxy, alkenyl, cycloalkyl, aryl or aryloxy or two residues R.sub.2 or R.sub.3 the remaining atoms of a benzene ring condensed with the phenyl residue andm and n mean 0 to 3, wherein all alkyl, alkoxy, cycloalkyl, alkenyl, aryl, aryloxy and acyl residues may be further substituted,is characterized by improved color stability.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: August 15, 1995
    Assignee: Agfa-Gevaert AB
    Inventors: Beate Weber, Gunter Helling, Klaus Walz, Markus Geiger, Kaspar Wingender, Jorg Hagemann
  • Patent number: 5437962
    Abstract: A photographic element having at least one photosensitive silver halide layer and associated therewith both a particular type of color coupler and a particular type of stabilizer. The color coupler is of the general formula (1) or (2): ##STR1## wherein A and B represent the same or different electron-withdrawing group,X is H or a group which splits off on coupling with oxidized color developer,R is an alkyl, cycloalkyl, aryl or heterocyclic which may be substituted, --COR.sup.1, --CSR.sup.1, SOR.sup.1, SO.sub.2 R.sup.1, --NHCOR.sup.1, --CONHR.sup.1, --COOR.sup.1, --COSR.sup.1, --NHSO.sub.2 R.sup.1 wherein R.sup.1 is an alkyl, cycloalkyl, or aryl group any of which are optionally substituted, and wherein two or more of A, B, R, and X optionally form part of a ring,Link is a linking group andn is 0, 1 or 2.The stabilizer is of the general formula (II), (III) or (IV): ##STR2## wherein the substituents of (II), (III) and (IV) are as defined in the specification.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: August 1, 1995
    Assignee: Eastman Kodak Company
    Inventors: Rakesh Jain, Thomas H. Jozefiak, Hugh M. Williamson
  • Patent number: 5436124
    Abstract: A photographic element comprising a support, at least one photosensitive silver halide layer and associated therewith a color coupler and a stabilizer therefor which stabilizer is an acrylate or acrylamide homopolymer or copolymer of low water solubility, the color coupler being of the general formula (1) or (2): ##STR1## wherein A and B represent the same or different electron-withdrawing group,X is H or a group which splits off on coupling with oxidised color developer,R is an alkyl, cycloalkyl, aryl or heterocyclic which may be substituted, --COR.sup.1, --CSR.sup.1, SOR.sup.1, SO.sub.2 R.sup.1, --NHCOR.sup.1, --CONHR.sup.1, --COOR.sup.1, --COSR.sup.1, --NHSO.sub.2 R.sup.1 wherein R.sup.1 is an alkyl, cycloalkyl, or aryl group any of which are optionally substituted, and wherein two or more of A, B, R, and X optionally form part of a ring,Link is a linking group andn is 0, 1 or 2.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: July 25, 1995
    Assignee: Eastman Kodak Company
    Inventors: Rakesh Jain, Thomas H. Jozefiak, Hugh M. Williamson
  • Patent number: 5436125
    Abstract: In a color photographic recording material, the light stability of a dye image produced from a magenta coupler and stabilized with a compound of the formula I may be further improved by additionally using a compound of one of the formulae II and III. ##STR1## In the formulae I, II and III, R.sup.1, R.sup.21, R.sup.25, R.sup.31, R.sup.34 mean H, alkyl, aryl, acyl;R.sup.2, R.sup.22, R.sup.32 mean --OR.sup.1 alkyl, aryl, dialkylamino, acylamino, sulphonamido, acyl, sulphonyl;R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.23, R.sup.24, R.sup.33 mean H, halogen or a residue as R.sup.2 ;m, n, q mean 0, 1, 2 or 3;o means 0, 1 or 2;p means a positive integer;A means alkylene, --O--, --S--, --NR.sup.25 --, --SO.sub.2 ;B means alkylene, --O--, --S--, --NR.sup.34 --, --SO.sub.2 --;wherein two adjacent residues --OR.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6 may together complete a 5- to 8-membered ring, two adjacent residues --OR.sup.21, R.sup.23, R.sup.22 or --OR.sup.21, R.sup.24, R.sup.22, or --OR.sup.31, R.sup.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: July 25, 1995
    Assignee: Agfa-Gevaert AG
    Inventors: Jorg Hagemann, Beate Weber
  • Patent number: 5434041
    Abstract: A photographic element having at least one photosensitive silver halide layer and associated therewith both a particular type of color coupler and a particular type of stabilizer. The color coupler is of the general formula (1) or (2): ##STR1## wherein A and B represent the same or different electron-withdrawing group,X is H or a group which splits off on coupling with oxidized color developer,R is an alkyl, cycloalkyl, aryl or heterocyclic which may be substituted, --COR.sup.1, --CSR.sup.1, SOR.sup.1, SO.sub.2 R.sup.1, --NHCOR.sup.1, --CONHR.sup.1, --COOR.sup.1, --COSR.sup.1, --NHSO.sub.2 R.sup.1 wherein R.sup.1 is an alkyl, cycloalkyl, or aryl group any of which are optionally substituted, and wherein two or more of A, B, R, and X optionally form part of a ring,Link is a linking group andn is 0, 1 or 2.The stabilizer is of the general formula: ##STR2## wherein: E.sup.1, E.sup.2, W.sup.2 and W.sup.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: July 18, 1995
    Assignee: Eastman Kodak Company
    Inventors: Rakesh Jain, Thomas H. Jozefiak, Hugh M. Williamson
  • Patent number: 5434040
    Abstract: A photographic element having at least one photosensitive silver halide layer and associated therewith both a particular type of color coupler and a particular type of stabilizer. The color coupler is of the general formula (1) or (2): ##STR1## wherein A and B represent the same or different electron-withdrawing group,X is H or a group which splits off on coupling with oxidized color developer,R is an alkyl, cycloalkyl, aryl or heterocyclic which may be substituted, --COR.sup.1, --CSR.sup.1, SOR.sup.1, SO.sub.2 R.sup.1, --NHCOR.sup.1, --CONHR.sup.1, --COOR.sup.1, --COSR.sup.1, --NHSO.sub.2 R.sup.1 wherein R.sup.1 is an alkyl, cycloalkyl, or aryl group any of which are optionally substituted, and wherein two or more of A, B, R, and X optionally form part of a ring,Link is a linking group andn is 0, 1 or 2.The stabilizer is of the general formula (I) below: ##STR2## wherein: M is Cu, Co, Ni, Pd or Pt;W.sup.2, W.sup.3, W.sup.4 and W.sup.5 are defined in the specification.
    Type: Grant
    Filed: April 2, 1993
    Date of Patent: July 18, 1995
    Assignee: Eastman Kodak Company
    Inventors: Rakesh Jain, Thomas H. Jozefiak, Sundaram Krishnamurthy, John L. Pawlak, Hugh M. Williamson
  • Patent number: 5429918
    Abstract: A silver halide color photographic material contains at least one hydroxypyridine compound of formulae (A), (B) and (C) in at least one layer on the support: ##STR1## The material is capable of providing a color image having an improved fastness to light.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: July 4, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 5426019
    Abstract: Yellowing, dye fade and thermal pinking of a processed color photographic element is improved by incorporating into the photographic element a non-color forming, oil-soluble, monomeric or oligomeric organic compound having a glass transition temperature between 0.degree. and 150.degree. C. Preferred organic compounds include rosin derivatives, natural resins and oil-soluble sucrose esters, etc. In a particularly preferred embodiment, the above-noted properties are improved by incorporating into the photographic element an oil-soluble rosin derivative, such as abietic acid.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: June 20, 1995
    Assignee: Eastman Kodak Company
    Inventor: Krishnan Chari
  • Patent number: 5426022
    Abstract: Compounds of Formula I are suitable as light stabilizers for the image dyes produced during chromogenic development from magenta couplers or yellow couplers ##STR1## In Formula I: R.sup.1, R.sup.2, R.sup.3 signify alkyl, aryl;R.sup.4, R.sup.5, R.sup.6 signify H, alkyl, alkoxy, aryloxy, acyloxy, ##STR2## alkoxycarbonyl, carbamoyl; R.sup.7 signifies H, alkyl, aryl;R.sup.8 signifies alkyl, aryl, acyl;X signifies a single bond, --O--, --NH--.
    Type: Grant
    Filed: July 5, 1994
    Date of Patent: June 20, 1995
    Assignee: Agfa-Gevaert AG
    Inventor: Jorg Hagemann
  • Patent number: 5426021
    Abstract: A photographic element containing a silver halide emulsion layer having associated therewith, a dye-forming coupler and a dye stabilizer which has a melting point of less than 150.degree. C. (and preferably less than 100.degree. C.) and is of the formula: ##STR1## wherein R, m, q, X, Y, r, and (R.sup.7).sub.n are defined in the specification.The element particularly contains a coupler which forms a yellow dye upon reaction with oxidized developer. A method of making stabilizers of the above type using particular solvents and a non-aqueous workup, is also provided.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: June 20, 1995
    Inventors: Sundaram Krishnamurthy, Rakesh Jain, Paul P. Spara, Thomas A. Rosiek
  • Patent number: 5422232
    Abstract: Disclosed herein is a silver halide color photographic light-sensitive material comprising at least three silver halide emulsion layers having different color sensitivities and formed on a reflective support. The support comprises a substrate and a composition layer laminated on at least the surface of the substrate on which the emulsion layers are coated, and made of a thermoplastic resin containing polyester as a main component and a white pigment mixed and dispersed in the resin. The polyester is a polyester synthesized by the polycondensation of a dicarboxylic acid and a diol. The silver halide contained in the material is silver chlorobromide having silver chloride content of 95 mol % or more, or silver chloride. The ratio of the coated amount of all hydrophilic colloid used in the material to the coated amount of silver contained in all silver halide used in the material ranges from 5.0 to 30.
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: June 6, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masahiro Asami, Naoto Ooshima
  • Patent number: 5418122
    Abstract: A silver halide color photographic material is disclosed which comprises a support having thereon at least one layer containing at least one compound of the following general formula: ##STR1## wherein R.sub.1 represents a hydrogen atom, an aliphatic group, --C(.dbd.O)--R.sub.7, --S(.dbd.O)2--R.sub.8 or --P(.dbd.O)(R.sub.7)(R.sub.9); R.sub.2 and R.sub.3 each represents --O--R.sub.10, --S--R.sub.10, an acylamino group or an aliphatic group; R.sub.4 represents --C(.dbd.O)--R.sub.11 or a heterocyclic group; R.sub.5 and R.sub.6 each represents a hydrogen atom or a substituent group; R.sub.7 and R.sub.9 each represents an aliphatic group, an aliphatic oxy group, an aryl group or an aryloxy group; R.sub.8 represents an aliphatic group or an aryl group; R.sub.10 represents an aliphatic group or --C(.dbd.O)--R.sub.7 ; and R.sub.11 represents a substituted hydrazino group or a heterocyclic group.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: May 23, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5418121
    Abstract: A multilayer silver halide color light-sensitive material including a yellow color-forming silver halide emulsion layer, a magenta color-forming silver halide emulsion layer, and a cyan color-forming silver halide emulsion layer, on a support. The light-sensitive material contains, in the yellow color-forming silver halide emulsion layer, at least one acylacetamide-type yellow coupler having an acyl group of a specified structure, and at least one organic compound selected from the group consisting of specified epoxy compounds, specified amide compounds, and esters having a melting point of 25.degree. C. or more at normal pressure and a molecular weight of 1000 or less.
    Type: Grant
    Filed: April 17, 1992
    Date of Patent: May 23, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Yoshioka, Hidetoshi Kobayashi
  • Patent number: 5415988
    Abstract: A silver halide color photographic light-sensitive material having a support which has thereon at least one light-sensitive silver halide emulsion layer and at least one light-nonsensitive layer, whereinthe light-nonsensitive layer comprises a layer which contains a compound represented by formula (I) and a compound represented by formula (II),the light-sensitive silver halide emulsion layer comprises at least one coupler represented by formula (III), anda total amount of a compound represented by formula (II) is 2 to 20 mol % of a total amount of a compound represented by formula (I).
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: May 16, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobutaka Ohki, Osamu Takahashi
  • Patent number: 5415989
    Abstract: Magenta dye images with excellent stability to light are obtained with a color photographic recording material which contains, associated with a light-sensitive silver halide emulsion layer, at least one magenta coupler corresponding to formula I and at least one compound corresponding to formula II.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: May 16, 1995
    Assignee: Agfa-Givaert AG
    Inventors: Erich Wolff, Dieter Lowski
  • Patent number: 5415991
    Abstract: A silver halide photographic material comprises at least one light-sensitive emulsion layer containing a silver halide emulsion on a support. The light-sensitive emulsion layer comprises (a) a silver halide emulsion containing silver halide grains having a silver chloride content of 90 mol % or more, in some cases 95 mol % or more, and (b) at least one compound represented by formula (I), (II) or (III): ##STR1## in which the variables are as defined in the specification. In some embodiments of the invention, the silver halide emulsion (a) may be sensitized with a selenium, gold or iridium compound. Also, in some embodiments of the invention, the silver halide grains are substantially iodide-free and have a localized phase with a silver bromide content of 10% or more in the vicinity of the grain surface.
    Type: Grant
    Filed: November 10, 1993
    Date of Patent: May 16, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Kase, Naoto Ohshima, Nobutaka Ohki
  • Patent number: 5411847
    Abstract: A color-photographic recording material is described which contains a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in claim 1.
    Type: Grant
    Filed: August 30, 1993
    Date of Patent: May 2, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: David G. Leppard, Hugh S. Laver
  • Patent number: 5411846
    Abstract: A novel silver halide color photographic material comprising a support provided thereon at least one layer containing at least one compound represented by the following general formula (A): ##STR1## In the formula, L.sub.1 represents an alkylene or arylene group; R.sub.1 represents a substituent which can be substituted for a hydrogen of the benzene ring; m represents an integer 2 to 7; and n is 0 or an integer of 1 to 4, with the proviso that when either or both of m and n are at least two, the plurality of L.sub.1 groups and/or R.sub.1 groups may be the same or different, and with the proviso that the compound of formula (A) does not form a polymer via an R.sub.1 group. In a preferred embodiment, at least one compound represented by formula (A) is incorporated into a photographic silver halide emulsion layer.
    Type: Grant
    Filed: July 21, 1993
    Date of Patent: May 2, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Yasuhiro Yoshioka, Masakazu Morigaki
  • Patent number: 5407789
    Abstract: A photographic recording material on a transparent support having at least one light-sensitive silver halide emulsion layer and optionally conventional interlayers and protective layers, characterized in that the photographic recording material contains, in at least one of the above-mentioned layers, a compound corresponding to formula I, II or III ##STR1## wherein R.sub.1 denotes an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted heterocyclic group,R2 denotes hydrogen, an unsubstituted or substituted alkyl group, an unsubstituted or substituted aryl group or an unsubstituted or substituted alkylthio group,R.sub.
    Type: Grant
    Filed: February 1, 1994
    Date of Patent: April 18, 1995
    Assignee: Agfa-Gevaert AG
    Inventors: Heinrich Odenwalder, Hans hlschlager, Thomas Stetzer
  • Patent number: 5405735
    Abstract: A silver halide color photographic material light-sensitive having a photographic layer constitution on a support is provided. The photographic layer constitution is comprised of at least one yellow coupler-containing silver halide emulsion layer, at least one magenta coupler-containing silver halide emulsion layer and at least one cyan coupler-containing silver halide emulsion layer formed on the support in this order. The magenta coupler is a 2-equivalent 5-pyrazolone coupler or a 2-equivalent pyrazoloazole coupler. A non-light-sensitive layer is provided between the yellow coupler-containing silver halide emulsion layer and the magenta coupler-containing silver halide emulsion layer and it contains a compound of formula (I) in an amount of from 2.75.times.10.sup.-4 to 1.5.times.10.sup.-3 mol/m.sup.2. The molar ratio of the silver halide in the yellow coupler-containing silver halide emulsion layer to the yellow coupler therein is from 1.5 to 3.5.
    Type: Grant
    Filed: September 20, 1993
    Date of Patent: April 11, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tadashi Ogawa
  • Patent number: 5405736
    Abstract: The invention provides a photographic dispersion for inducing dye stability in the eventual photographic product. The invention provides in a first aspect a photographic dispersion comprising a photographic coupler and a solvent therefore wherein the solvent is solid at its temperature of fade concern thereby to promote dye stability in use.The invention also provides a photographic coupler and a solvent therefor wherein the solvent is an alkyl alcohol or an optionally substituted dialkyl or diaryl phosphate. The coupler may have a ballasted chain having a matched molecular structure thereby to further promote dye stability in use.
    Type: Grant
    Filed: December 23, 1992
    Date of Patent: April 11, 1995
    Assignee: Eastman Kodak Company
    Inventor: David J. Young
  • Patent number: 5399473
    Abstract: There is disclosed a silver halide color photographic material which comprises one yellow coupler represented by the following formula (1) or (2), and a compound represented by the following formula (3) or (4). ##STR1## wherein X.sup.1 and X.sup.2 each represent an alkyl group, an aryl group, or a heterocyclic group, X.sup.3 represents an organic residue required to form a nitrogen-containing heterocyclic group together with the >N--, Y represents an aryl group or a heterocyclic group, and Z represents a group capable of being released upon a coupling reaction with the oxidized product of a developing agent, ##STR2## wherein R.sub.a1, R.sub.a2, R.sub.a3, R.sub.a4, and R.sub.a5 each represent a hydrogen atom, or a substituent such as an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, a cyano group, a halogen atom, or a nitro group, provided that R.sub.al, R.sub.a2, R.sub.a3, R.sub.a4, and R.sub.a5 are not hydrogen atoms at the same time, ##STR3## wherein R.sub.
    Type: Grant
    Filed: April 10, 1992
    Date of Patent: March 21, 1995
    Assignee: Fuji Photo Film Company, Ltd.
    Inventors: Akiko Shono, Nobuo Seto
  • Patent number: 5397688
    Abstract: In a multilayered silver halide color light-sensitive sensitive material having a yellow dye forming silver halide emulsion layer, a magenta dye forming silver halide emulsion layer, and a cyan dye forming silver halide emulsion layer on a support, at least one type of an acylacetamide-based yellow coupler in which the acyl group in the acylacetamide is represented by formula (I) below and at least one type of a water-insoluble polymer are contained in the yellow dye forming layer, In formula (I), R.sub.1 represents a monovalent group, and Q represents a nonmetallic atom group required to form, together with C, a 3- to 5-membered hydrocarbon ring or a 3- to 5-membered heterocyclic ring having at least one hereto atom selected from N, S, O, and P in the ring, R.sub.
    Type: Grant
    Filed: May 21, 1993
    Date of Patent: March 14, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuhiro Yoshioka
  • Patent number: 5397689
    Abstract: A silver halide photographic material is disclosed which comprises a support having thereon at least one layer containing at least one member of compounds represented by the following general formula (1) or (2): ##STR1## wherein L represents an unsubstituted alkylene group; X represents --O(C.dbd.O)R.sub.2, --O(P.dbd.O) (R.sub.2) (R.sub.3) or a halogen atom; R.sub.1 represents a substituent group; R.sub.2 and R.sub.3 each represents a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group or a substituted or unsubstituted amino group; n represents 0, 1 or 2 and when n is 2, two R.sub.1 groups may be the same or different; R.sub.4 represents an unsubstituted alkyl group having 2 to 20 carbon atoms; and R.sub.5 represents an unsubstituted alkyl group, the number of carbon atoms of which is larger by 2 than the number of carbon atoms of R.sub.4.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: March 14, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobutaka Ohki, Naoki Asanuma, Osamu Takahashi, Shigeo Hirano
  • Patent number: 5395749
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one layer which contains at least one compound represented by the following formula (I): ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each independently represents an alkyl group, an aryl group or a heterocyclic group; Ar represents an aryl group; Ar and R.sup.1 may be linked to form a 5- to 7-membered ring but R.sup.2 and Ar or R.sup.1 do not link with each other; and n represents an integer of 0 to 2.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: March 7, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masayuki Negoro, Hiroo Takizawa, Masakazu Morigaki
  • Patent number: 5391473
    Abstract: The invention provides photographic paper having increased image stability. The invention is generally accomplished by forming a paper sheet, drying said paper in a first stage to below about 10 percent water, then applying a polyvinyl alcohol solution to both sides of said paper sheet, drying said paper in a second stage to below about 5 percent water, and then applying further polyvinyl alcohol solution to said paper and drying in a third stage. The paper then may be coated to form a silver halide photosensitive color paper. The paper contains between about 4 and about 6 weight percent of polyvinyl alcohol that is concentrated near the surface of said paper. Further, the paper has a oxygen leak rate of less than about 25 cc/m.sup.2 / day and an oxygen GTR rate of less than about 1 cc/m.sup.2 /day.
    Type: Grant
    Filed: April 16, 1993
    Date of Patent: February 21, 1995
    Assignee: Eastman Kodak Company
    Inventors: David J. Lacz, Todd R. Skochdopole, Larry D. Hagemeier, Anita M. Fees, Brian Thomas, Gary J. McSweeney
  • Patent number: 5385813
    Abstract: A color photographic silver halide material comprising at least one negatively developing, green-sensitive silver halide emulsion layer containing at least one magenta coupler can be adjusted to any desired sensitivity of that layer without any changes in other sensitometric properties by addition of at least one compound corresponding to general formula (I) ##STR1## wherein is hydrogen or halogen,Y is NR.sub.2, O or S andis hydrogen or C.sub.1-4 alkyl.
    Type: Grant
    Filed: April 19, 1993
    Date of Patent: January 31, 1995
    Assignee: Agfa-Gevaert AG
    Inventors: Sieghart Klotzer, Otto Lapp
  • Patent number: 5382500
    Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising a support and thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver emulsion layer and a red-sensitive silver halide emulsion layer, wherein said green-sensitive emulsion layer contains at least one coupler represented by Formula M-I and at least one of a non-color-forming compound represented by Formula A-1 or A-2: ##STR1## wherein R represents a hydrogen atom or a substituent; X represents a hydrogen atom or a substituent capable of splitting upon making a reaction with an oxidized product of a color developing agent; and Z represents a group consisting of metal atoms necessary to form a nitrogen-containing heterocyclic ring:Formula (A-1)R.sub.21 --NHSO.sub.2 --R.sub.22wherein R.sub.21 and R.sub.
    Type: Grant
    Filed: December 27, 1993
    Date of Patent: January 17, 1995
    Assignee: Konica Corporation
    Inventors: Shuichi Sugita, Hidenobu Ohya, Masakazu Tonishi
  • Patent number: 5380631
    Abstract: A silver halide color photographic light-sensitive material having at least one negative silver halide emulsion layer on a support, wherein the silver halide color photographic light-sensitive material contains at least one type of a compound which reacts with the oxidized form of a developing agent to release a development inhibitor or a precursor of a development inhibitor and/or at least one type of a compound which cleaves after reacting with the oxidized form of a color developing agent, the cleaved compound of which in turn reacts with another molecule of the oxidized form of a color developing agent to cleave a development inhibitor, and contains at least one type of a compound selected from Formulas (A) and (B) below. In Formulas (A) and (B), each of R.sub.a1 to R.sub.a5 and R.sub.b1 to R.sub.b5 represents a hydrogen atom, an alkyl group or other groups. R.sub.a1 to R.sub.a5 are not simultaneously hydrogen atoms, and one or two of R.sub.b2 to R.sub.b5 are hydroxyl groups.
    Type: Grant
    Filed: January 8, 1993
    Date of Patent: January 10, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Nozawa, Nobuo Seto, Nobutaka Ohki, Masayoshi Toyoda
  • Patent number: 5380632
    Abstract: A photosensitive photographic silver halide colour material comprising at least two dye image-forming units each separated from its neighbouring units by a layer containing a scavenger for oxidised developing agent, each unit comprising at least one silver halide emulsion layer and at least one dye image-forming colour coupler, the material comprising a total silver halide coating weight of less than 300 mg/m.sup.2 (as silver) characterised in that at least one image-forming unit contains extra gelatin either in a layer adjacent to the coupler-containing layer or in the coupler-containing layer itself such that the gelatin content of the unit is more than 800 mg/m.sup.2, in order to decrease the band width of the dye formed from said coupler.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: January 10, 1995
    Assignee: Eastman Kodak Company
    Inventors: Peter D. Marsden, John K. C. Kempster, John A. Bee
  • Patent number: 5378594
    Abstract: There is disclosed a silver halide color photographic material comprising at least one sparingly water-soluble epoxy compound represented by formula (I), (II), or (III) and a silver halide emulsion layer which comprises high-silver-chloride grains containing metal ions and/or having silver bromide localized phases on the surface thereof, and/or that have been sensitized by a gold compound: ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 each represent a substituted or unsubstituted alkyl group or a halogen atom; L.sup.1 and L.sup.2 each represent a divalent aliphatic group, which may be substituted or unsubstituted; M.sup.1 represents an oxygen atom or a nitrogen atom; A represents a polyvalent linking group; a, b, and c each are an integer of 0 to 4; x and y each are an actual number of 0 to 20; l is 1 or 2; and m represents an integer of 2 to 4.
    Type: Grant
    Filed: September 17, 1991
    Date of Patent: January 3, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kentaro Okazaki, Naoto Oshima, Kiyoto Takada
  • Patent number: 5378595
    Abstract: A silver halide photo-sensitive material comprising a support, and at least one silver halide emulsion layer, on said support containing at least one compound having the following general formula (I): ##STR1## where R.sup.1 is an aliphatic group, an aryl group, an aliphatic oxy group or an aryloxy group; and X is an alkylene or alkenylene group forming a five- or six-membered ring. In this event, R.sup.1 will not bond to a carbon atom in the ring of X.
    Type: Grant
    Filed: March 1, 1994
    Date of Patent: January 3, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroo Takizawa, Toshiyuki Makuta
  • Patent number: 5376520
    Abstract: A silver halide color photographic light-sensitive material containing a polyvalent alcohol is disclosed. The polyvalent alcohol has two or more hydroxy group and is water immissible. The polyvalent alcohol is used in combination with a dye forming coupler.
    Type: Grant
    Filed: December 2, 1993
    Date of Patent: December 27, 1994
    Assignee: Konica Corporation
    Inventors: Hiroshi Kita, Hirokazu Sato
  • Patent number: 5376514
    Abstract: A silver halide photosensitive photographic material comprising a support and provided thereon, photographic component layers including at least one silver halide emulsion layer is disclosed, wherein the photosensitive silver halide grains contained in all the silver halide emulsion layers have an average silver iodide content ranging from 0 to 3 mol % and contain at least silver bromide; and at least one of the silver halide emulsion layers contain a diequivalent phenolic cyan dye-forming coupler having a ureido group in a 2-position of a phenolic nucleus.
    Type: Grant
    Filed: March 4, 1994
    Date of Patent: December 27, 1994
    Assignee: Konica Corporation
    Inventors: Satoru Shinba, Toshihiko Kimura, Fumio Ishii
  • Patent number: 5376519
    Abstract: A color photographic material and process provide a two-equivalent 3-anilino pyrazolone magenta dye-forming coupler, a phenolic coupler solvent and at least one amine compound.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: December 27, 1994
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Stephen P. Singer
  • Patent number: 5376512
    Abstract: There is disclosed a silver halide color photographic material, which comprises, in a yellow color-forming silver halide emulsion layer, one of nondiffusible yellow couplers represented by formula (I-1) or (I-2) and an organic compound represented by formula (II), or further an organic compound represented by formula (III): ##STR1## wherein X.sup.1 and X.sup.2 each represent an alkyl group, an aryl group, or a heterocyclic group, X.sup.3 represents an organic residue to form a nitrogen-containing heterocyclic group together with the >N--, Y represents an aryl group or a heterocyclic group, and Z represents a hydrogen atom or a coupling-releasing group, ##STR2## wherein R.sup.4, R.sup.5, R.sup.6, and R.sup.7 each represent a hydrogen atom, an aliphatic group, an aromatic group, an aliphatic-oxycarbonyl group, an aromatic-oxycarbonyl group, or a carbamoyl group, provided that each of R.sup.4, R.sup.5, R.sup.6, and R.sup.7 does not represent a hydrogen atom at the same time, ##STR3## wherein R.sup.8, R.sup.
    Type: Grant
    Filed: October 2, 1992
    Date of Patent: December 27, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hajime Nakagawa, Yasuhiro Yoshioka
  • Patent number: 5374513
    Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a spectrally sensitized silver halide emulsion layer and a non-light-sensitive layer provided on a support. According to the present invention, the silver halide emulsion layer or the non-light-sensitive layer contains a complex of Ni, Co, Mn or Zn with a nitrogen-containing heterocyclic compound represented by the following formula: ##STR1## wherein ##STR2## Y is CR.sup.3 or N; Z is CR.sup.4 or N; each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently is hydrogen, a halogen atom, hydroxyl, amino, hydroxyamino, cyano, an alkyl group, an aryl group, an alkylthio group, an alkylamino group, an arylamino group, an alkoxycarbonyl group or an acylamino group; R.sup.1 and R.sup.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: December 20, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuhisa Ohzeki, Hiroyuki Asanuma
  • Patent number: 5374505
    Abstract: A color photographic recording material containing, on a layer support, at least one blue sensitive silver halide emulsion layer and a yellow coupler associated therewith, at least one green sensitive silver halide emulsion layer and a magenta coupler associated therewith and at least one red sensitive silver halide emulsion layer and a cyan coupler associated therewith also contains, in a layer which is not sensitive to light, a compound corresponding to formula I (stabilizer) ##STR1## wherein R.sup.1 denotes H or a group which can be split off under alkaline development conditions;R.sup.2 denotes H, halogen, OH, an alkyl having 1 to 4 carbon atoms, an alkoxy having 1 to 4 carbon atoms, COOR.sup.3, CONR.sup.4 R.sup.5, SO.sub.2 NR.sup.4 R.sup.5, NH--COR.sup.3, NH--SO.sub.2 --R.sup.3 or NH--CO--NHR.sup.4 ;R.sup.3 denotes an alkyl having 1 to 4 carbon atoms,R.sup.4 and R.sup.5 denote H or a group such as R.sup.
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: December 20, 1994
    Assignee: Agfa-Gevaert AG
    Inventors: Jurgen Heinecke, Helmut Mader, Fritz Nittel, Hans hlschlager, Armin Voigt
  • Patent number: 5374499
    Abstract: A silver halide photographic material comprising a support having thereon at least one of a surface latent image type silver halide emulsion layer and other hydrophilic colloid layers is disclosed, in which said at least one of the emulsion layer and other hydrophilic colloid layers contains a compound represented by formula (I): ##STR1## wherein X represents ##STR2## R.sub.1 represents a hydrogen atom or a group capable of being converted to a hydrogen atom on hydrolysis; R.sub.2, R.sub.3 and R.sub.4, which may be the same or different, each represents a hydrogen atom or a substituent group; R.sub.5 and R.sub.
    Type: Grant
    Filed: December 6, 1993
    Date of Patent: December 20, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Senzo Sasaoka, Morio Yagihara
  • Patent number: 5362882
    Abstract: A novel pyrrolotriazole derivative is disclosed, represented by any one of formulae (I), (II), (III), (IV), or (V): ##STR1## A heat transfer dye providing material is also disclosed, comprising a support having thereon a dye providing layer containing a heat migrating dye, said dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any one of formulae (I), (II), (III), or (IV).
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: November 8, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
  • Patent number: 5362615
    Abstract: A color-photographic recording material comprising at least one red-sensitive silver halide emulsion layer associated with a cyan coupler, at least one green-sensitive silver halide emulsion layer associated with a magenta coupler, and at least one blue-sensitive silver halide emulsion layer associated with a yellow coupler, at least one layer of the material containing a hydroquinone diether compound having the following formula I and optionally at least one compound having one of the formulae II, III, IV, V, SA and SB given in the description, characterized by increased light stability of the image colorants produced during chromogenic development, ##STR1## In the formula: R.sup.1 denotes alkyl, cycloalkyl or aryl;R.sup.2 denotes H, alkyl;R.sup.3, R.sup.4 denote H, alkyl, cycloalkyl, aryl, halogen, alkoxy, aroxy, acyloxy, alkylthio, arylthio, acyl, sulphonyl, sulphamoyl, acylamino, sulphonylamino, nitro;R.sup.5 denotes H, acyl, alkyl;X denotes --O-- or --NR.sup.6 --;R.sup.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: November 8, 1994
    Assignee: Agfa AG
    Inventors: Jorg Hagemann, Ralf Weimann, Erich Wolff, Johannes Sobel
  • Patent number: 5362617
    Abstract: A light-sensitive material comprising a support provided thereon at least one layer containing a coupler represented by the following Formula (I): ##STR1## wherein A represents a group represented by the following Formula (a), (b) or (c): ##STR2## wherein the groups are as defined in the specification provided that at least one of the groups represented by A, B and Z has at least one of the partial structures represented by the following Formulas (P-I) to (P-V): ##STR3## wherein the substituent groups are as defined in the specification.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: November 8, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Kohzaburoh Yamada, Nobuo Seto, Yasuhiro Yoshioka
  • Patent number: 5360711
    Abstract: A sliver halide color photographic material compriseing a support having at least one layer containing at least one a compound of the formula (I), (II) or (III). ##STR1## n=0, 1, or 2.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: November 1, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masayuki Negoro, Masakazu Morigaki
  • Patent number: H1429
    Abstract: The present invention offers a silver halide photographic light-sensitive material which is excellent in dye image storage stability, which undergoes little change in the photographic performance thereof between initiation and completion of continuous processing, which has excellent color reproducibility and sufficient color developability. The present invention comprises a silver halide photographic light-sensitive material having at least one silver halide emulsion layer containing a dye-forming coupler on the support, wherein said silver halide emulsion layer contains at least one compound having an ester group and an oxidation potential of not more than 1800 mV.
    Type: Grant
    Filed: June 19, 1992
    Date of Patent: April 4, 1995
    Assignee: Konica Corporation
    Inventors: Motoi Nishimura, Hirokazu Sato, Katsumasa Yamazaki, Shigeto Hirabayashi