Heterocyclic Coupler Patents (Class 430/558)
  • Patent number: 5389504
    Abstract: A photographic element including a support and first and second green-sensitive silver halide emulsion layers of different sensitivity, wherein the layer of higher sensitivity includes a two-equivalent magenta dye-forming coupler selected from the group consisting of a pyrazolone coupler having a structure according to formula I and a pyrazoloazole coupler having a structure according to formula II as set forth in the disclosure, and the layer of lower sensitivity includes a two-equivalent magenta dye-forming coupler selected from the group consisting of couplers defined by formulas I and II. The activity of the magenta dye-forming coupler present in the layer of lower sensitivity is less than the activity of the coupler present in the layer of higher sensitivity. The layers of higher and lower sensitivity do not comprise magenta couplers which are defined by the same formula.
    Type: Grant
    Filed: June 24, 1993
    Date of Patent: February 14, 1995
    Assignee: Eastman Kodak Company
    Inventors: Hans G. Ling, Drake M. Michno, Stephen Singer
  • Patent number: 5387500
    Abstract: A photographic element including a support and at least two green-sensitive silver halide emulsion layers of different sensitivity, each emulsion layer including a two-equivalent pyrazoloazole magenta dye-forming coupler having a structure according to formula I of the disclosure. The activity of the dye-forming coupler present in the layer of lower sensitivity is less than the activity of the dye-forming coupler present in the layer of higher sensitivity.
    Type: Grant
    Filed: May 27, 1994
    Date of Patent: February 7, 1995
    Assignee: Eastman Kodak Company
    Inventors: Hans G. Ling, Drake M. Michno
  • 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: 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: 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: 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: 5382502
    Abstract: 8-hydroxyquinoline and 5-hydroxyquinoline compounds of the following formulae: ##STR1## , wherein: R.sub.1 is a substituted or unsubstituted alkyl group with 8 to 30 carbon atoms;R.sub.2 is hydrogen or another substituent;X is a group capable of being released by a coupling reaction with an oxidized aromatic primary amine developing agent; andZ is a nonnucleophilic substituent or a group not capable of being eliminated during or following a coupling reaction with an oxidized color developerhave been found to be useful in photographic materials as cyan dye-forming couplers. A process in which a substituted aminophenol salt reacts with two molar equivalents of an enolizable aldehyde containing at least two a-substituted hydrogen atoms is used to make these couplers and other hydroxyquinoline compounds.
    Type: Grant
    Filed: July 23, 1993
    Date of Patent: January 17, 1995
    Assignee: Eastman Kodak Company
    Inventors: Philip T. S. Lau, Danny R. Thompson, Stanley W. Cowan
  • 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: 5378587
    Abstract: A photographic element contains a photographic silver halide layer having associated therewith a bicyclic pyrazolo coupler having a ballast group represented by Formula (I):--C(R').sub.m --L--Y--Ar(R").sub.nwherein:L is a divalent linking group connecting the methylene group to the remainder of the ballast group and containing at least one group selected from the group consisting of --NR.sup.1 CO--, --CONR.sup.1 --, --NR.sup.1 SO.sub.2 -- and --SO.sub.2 NR.sup.1 --, wherein R.sup.1 is hydrogen or a substituent;Y is a divalent linking group connecting L to Ar and containing a member selected from the group consisting of --O--, --S--, and --NR.sup.1 -- wherein R.sup.1 is hydrogen or a substituent;Ar is an aryl group;each R' and R" is independently a substituent, provided that at least one R" is a substituted or unsubstituted alkyl or alkoxy group having at least 10 carbon atoms; andm and n are at least 1.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: January 3, 1995
    Assignee: Eastman Kodak Company
    Inventors: Sundaram Krishnamurthy, Stanley W. Cowan
  • Patent number: 5378596
    Abstract: A silver halide color photographic material comprises a support having provided thereon at least one silver halide emulsion layer containing at least one pyrrolotriazole cyan coupler represented by the following Formula (I) or (II) and at least one phenol or 1-naphtol cyan coupler represented by the following Formulas (III), (IV), (V) and (VI): ##STR1## wherein Za and Zb each represents --C(R.sub.3).dbd. or --N.dbd.; R.sub.1 and R.sub.2 each independently represents an electron attractive group having a Hammett's substituent constant .sigma..sub.p of 0.2 or more and the sum of the .sigma..sub.p values of R.sub.1 and R.sub.2 is 0.65 or more; R.sub.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: January 3, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Makoto Suzuki
  • 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: 5376513
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein the light-sensitive material contains a yellow colored cyan coupler and an acylacetamide yellow dye forming coupler having an acyl moiety represented by the general formula (A): ##STR1## wherein R.sub.1 represents a univalent group, Q represents a group of non-metal atoms required to form, together with C, a three to five membered hydrocarbon ring or a three to five membered heterocyclic ring which has within the ring at least one hetero atom selected from among N, O, S and P, with the proviso that R.sub.1 is not a hydrogen atom and it does not join with Q to form a ring.
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: December 27, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Keiji Mihayashi
  • Patent number: 5374511
    Abstract: A 1-H-pyrazolo-[1,5-b]-1,2,4-triazole having a combination of an arylthio coupling-off group and a tertiary alkyl group attached via its tertiary carbon atom in the 6-position preferably has the general formula: ##STR1## wherein R.sup.1 is a tertiary alkyl group,R.sup.2 is an alkyl or substituted alkyl group, andX is a thioaryl or substituted thioaryl group.
    Type: Grant
    Filed: June 7, 1993
    Date of Patent: December 20, 1994
    Assignee: Eastman Kodak Company
    Inventors: Llewelyn J. Leyshon, David Clarke
  • Patent number: 5372920
    Abstract: A multilayered color photographic element contains a support having coated thereon photographic silver halide emulsion layers including at least one blue-sensitive and at least three red-sensitive silver halide emulsion layers, said red-sensitive layers respectively being most, mid, and least red-sensitive relative to each other, said most and mid red-sensitive layers being contiguous, and the most red-sensitive layer being a coupler starved layer, which element comprises:(a) a yellow image dye-forming coupler and substantially no development inhibitor releasing coupler in the most red-sensitive layer; and(b) at least one development inhibitor releasing coupler in the mid red-sensitive layer.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: December 13, 1994
    Assignee: Eastman Kodak Company
    Inventor: Larry D. Edwards
  • Patent number: 5370979
    Abstract: A silver halide color photographic light-sensitive material has, on a support, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, and at least two red-sensitive silver emulsion layers containing a cyan coupler and having different sensitivities. The highest sensitivity layer of the red-sensitive silver halide emulsion layers contains a magenta coupler, and a red-sensitive emulsion layer having a lower sensitivity contains a magenta colored cyan coupler.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: December 6, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yuji Kume
  • 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: 5368996
    Abstract: A color photographic material having photographic constituent layers including at least one light-sensitive silver halide emulsion layer on a reflective support, wherein the light-sensitive silver halide emulsion layer comprises silver chloride or silver chlorobromide containing 90 mol % or more of silver chloride is disclosed. The reflective support comprises at least one water-resistant resin layer, the water-resistant resin layer on the side of the support on which a silver halide emulsion layer is formed contains 14% by weight or more of a white pigment, and the total amount of calcium contained in the photographic constituent layers on the light-sensitive layer side of the photographic material is 10 mg/m.sup.2 or less, or the photographic material comprises at least one hydrophilic colloid layer on the support, the hydrophilic colloidal layer contains a white pigment at a coating amount of 2 g/m.sup.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: November 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Masahiro Asami
  • Patent number: 5368998
    Abstract: A silver halide color photographic light sensitive material comprising a magenta coupler of Formula is disclosed. ##STR1## In the formula R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each represent a hydrogen atom, an aliphatic group, aromatic group or heterocyclic group, wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 each are same or different, the aliphatic group and aromatic group each may have a substituent(s); R.sup.6 and R.sup.7 each represent a hydrogen atom or a substituent, wherein R.sup.6 and R.sup.7 each are same or different and may form a dioxane ring, and the dioxane ring may have a substituent (s); X is a hydrogen atom, or a group or atom which is released upon the reaction with the oxidation product of developing agent; Z.sub.1 is a non-metal group to form a 5-membered cycle in combination with a nitrogen atom; the cycle represented by X may have a sustituent(s).
    Type: Grant
    Filed: January 10, 1994
    Date of Patent: November 29, 1994
    Assignee: Konica Corporation
    Inventors: Hiroshi Ishidai, Hiroshi Kita, Yutaka Kaneko, Koji Daifuku
  • 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: 5364748
    Abstract: There is disclosed a silver halide color photo-graphic light-sensitive material capable of providing a dye image having excellent color reproducibility, sharpness and image fastness. The light-sensitive material comprises a support having provided thereon a photographic constituent layer comprising a light-sensitive silver halide emulsion layer containing a yellow dye-forming coupler, a light-sensitive silver halide emulsion layer containing a magenta dye-forming coupler, and a light-sensitive silver halide emulsion layer containing a cyan dye-forming coupler, and non-light-sensitive hydrophilic colloid layers.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: November 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Yoneyama
  • Patent number: 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: 5360700
    Abstract: A process for developing and its after-treatment of an exposed silver halide photographic material which is capable of replacing a step of rinsing by water washing and a step of final stabilization by formaldehyde, with a single stabilizing step without water rinsing followed by directly to a drying step is disclosed.The process comprises a solution capable of bleaching containing a ferric complex salt of organic acid, diethylenetriaminepentaacetic acid and a like, and a stabilizing solution containing a certain aldehyde compound.
    Type: Grant
    Filed: October 5, 1993
    Date of Patent: November 1, 1994
    Assignee: Konica Corporation
    Inventors: Tomonori Kawamura, Shigeharu Koboshi
  • Patent number: 5360710
    Abstract: Color photographic materials comprise a support bearing a silver halide emulsion and at least one water-dispersible polymeric coupler. The polymeric coupler is formed by polymerization of a mixture of at least one ethylenically unsaturated coupler monomer containing a dye-forming coupler moiety and at least one ionic monomer containing an ionizable functional group, in a water-miscible organic solvent. The polymeric coupler contains less than 10 weight percent of the ionic monomer.
    Type: Grant
    Filed: May 6, 1992
    Date of Patent: November 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Tien-Teh Chen, Stanley W. Cowan, Edward Schofield, Ping-Wah Tang
  • Patent number: 5358829
    Abstract: Novel bicyclic pyrazolo couplers contain a sulfone group of formula (I):--L--NHC(.dbd.O)--(L).sub.n --B--SO.sub.2 --R.sup.1 Iwherein:each L is independently a divalent group linking the adjacent groups;n is 0 or 1;B is a divalent group selected from aryl, aryloxy, aryloxyalkyl, and --C(R.sup.2)(R.sup.3)-- wherein R.sup.2 and R.sup.3 are independently hydrogen or alkyl; andR.sup.1 is a substituted or unsubstituted alkyl having 1 to 22 carbon atomsThese couplers are useful in photographic materials and processes. They exhibit improved color reproduction and dye light stability when employed in color photographic materials and processes.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: October 25, 1994
    Assignee: Eastman Kodak Company
    Inventors: Ping W. Tang, Stanley W. Cowan
  • Patent number: 5358837
    Abstract: The invention provides new magenta-dye-forming couplers, new magenta dyes formed therefrom, and new photographic elements containing the new couplers. The new couplers have the structure (I):Q--G--Q.sub.(I)wherein --G-- has the structure (II):--L--NH--SO.sub.2 --R--SO.sub.2 -NH--L--.sub.(II)wherein --R-- is substituted or unsubstituted alkylene, alkoxylene, arylene, or aryloxylene, andeach --L-- is independently substituted or unsubstituted alkylene, alkoxylene, arylene, aryloxylene, or aryloxyalkylene, andQ-- has the structure (III ): ##STR1## wherein: each R.sup.1 -- is independently H-- or a substituent; each X-- is independently H-- or a coupling-off group; andeach of D, E, and Z is independently a substituted or unsubstituted methine group, .dbd.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: October 25, 1994
    Assignee: Eastman Kodak Company
    Inventors: Ping-Wah Tang, Terrence C. Mungal, Philip T. S. Lau, Stanley W. Cowan
  • Patent number: 5356763
    Abstract: A silver halide color photographic material enables rapid processing, provides a high quality image and has excellent light fastness under extensive conditions, even under high humidity comprises a support, provided thereon at least three silver halide emulsion layers each containing at least one different coupler for forming a different dye by a coupling reaction with the oxidation product of an aromatic primary amine developing agent and each having a different light sensitivity, and at least one anti-color mixing layer provided between each of the emulsion layers and comprising a light-insensitive layer, wherein at least one of the above silver halide emulsion layers contains silver halide grains having a silver chloride content of 90 mole % or more and a magenta coupler represented by the following formula (I) and at least two of the anti-color mixing layers contain at least one anti-color mixing agent having a molecular weight of 350 or more and at least one high boiling organic solvent having the dielec
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: October 18, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Nobutaka Ohki
  • Patent number: 5354826
    Abstract: Polymeric color couplers with repeating units of a polymerized monomer K of formula I ##STR1## with R.sup.1 H or an optionally substituted alkyl group;R.sup.2, R.sup.3, R.sup.4 (identical or different) H, Cl, --COOH or optionally substituted alkyl groups; andX H or a group releaseable by coupling provide, during chromogenic development: magenta dye images with high dye yield and advantageous absorption level.
    Type: Grant
    Filed: April 28, 1993
    Date of Patent: October 11, 1994
    Assignee: Agfa-Gevaert AG
    Inventors: Gunter Helling, Rainer Bialek, Ralf Weimann
  • Patent number: 5352571
    Abstract: A silver halide color photographic light-sensitive material capable of providing a dye image having improved spectral absorption characteristic as well as high color-forming property and excellent dye image fastness is disclosed. The light-sensitive material comprises at least one silver halide emulsion layer having a cyan color-forming property, wherein the silver halide emulsion layer having the cyan color-forming property contains at least one cyan coupler represented by the following formula (I) or (II) and at least one of a sparingly water-soluble homopolymer and/or copolymer: ##STR1## wherein Za and Zb each represents --C(R.sub.3).dbd. or --N.dbd., provided that one of Za and Zb is --N.dbd. and the other is --C(R.sub.3).dbd.; R.sub.1 and R.sub.2 each are an electron attractive group having a Hammett's substituent constant .sigma..sub.p of 0.2 or more and the sum of the .sigma..sub.p values of R.sub.1 and R.sub.2 is 0.65 or more; R.sub.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: October 4, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Hideaki Naruse, Takehiko Sato
  • 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: 5350666
    Abstract: A silver halide photographic material having on a support, at least one photosensitive silver halide emulsion layer, which contains a coupler which releases at least two groups selected from the group consisting of a photographically useful group and a precursor thereof via a timing group upon undergoing a coupling reaction with an oxidized product of a developing agent, in which a plurality of photographically useful groups or precursors thereof are present on different atoms of the timing group, provided that when the plurality of photographically useful groups have a different function to each other, the timing group is not a group utilizing an intramolecular nucleophilic substitution reaction.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: September 27, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masuji Motoki, Atsuhiro Ohkawa, Keiji Mihayashi
  • 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: 5342748
    Abstract: A color photographic light-sensitive material for printing use comprising a reflection type support bearing thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer; wherein a silver halide emulsion contained in said green-sensitive silver halide emulsion layer is a monodispersed silver halide emulsion and a coupler combined with said monodispersed silver halide emulsion is a magneta coupler represented by the following formula I ##STR1## wherein Z represents a group of non-metal atoms necessary for forming a nitrogen-containing heterocyclic ring, and the ring formed by the Z is allowed to have substituents; X represents a substituent capable of splitting off through the reaction thereof on the oxidation products of a color developing agent; and R represents hydrogen or a substituent.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: August 30, 1994
    Assignee: Konica Corporation
    Inventors: Masanobu Miyoshi, Makoto Kajiwara, Makoto Onodera
  • Patent number: 5342746
    Abstract: A silver halide light-sensitive photographic element comprising a support and provided thereon a plurality of light-sensitive layers including a green-sensitive layer comprising a dispersion of particles in a hydrophilic colloid, the particles comprising a pyrazolazole dye forming coupler dissolved in a coupler solvent comprising a long chain unsaturated alcohol.
    Type: Grant
    Filed: February 5, 1993
    Date of Patent: August 30, 1994
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Richard K. Rothrock, Chris Johnson
  • 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: 5342749
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer and containing a 1H-pyrazolo[5,1-c]-1,2,4-triazole couplers represented by the general formula (I) of the general formula (II): ##STR1## wherein A represents a group which is bonded to L via the benzene ring or a carbon atom in R.sup.
    Type: Grant
    Filed: December 21, 1993
    Date of Patent: August 30, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kei Sakanoue, Keizo Kimura
  • 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: 5340709
    Abstract: Compounds of Formula I are suitable as light stabilizers for the image dyes produced by chromogenic development from pyrazoloazole couplers ##STR1## In Formula I, R.sup.1 represents H, a group that can be split off under alkaline conditions, alkyl or aryl;R.sup.2 represents --OH, alkyl, aryl, alkoxy or ##STR2## R.sup.3, R.sup.4, R.sup.5 and R.sup.6 represent H, --OH, --COOH, --SO.sub.3 H, --SO.sub.2 H, alkyl, aryl, alkoxy, sulphonyl, sulphamoyl, acylamino or ##STR3## at least one of the groups R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 being a group of the formula ##STR4## A represents alkylene with 1-6 C atoms; n represents 0 or 1,R.sup.7 represents H or alkyl, optionally substituted alkyl,R.sup.8 represents optionally substituted alkyl, cycloalkyl or aryl with 4-20 C atoms;R.sup.1 and R.sup.3 can form a 5- or 6-membered ring, in which case R.sup.2 =--OH or alkoy;R.sup.2 and R.sup.4 can form a 5- or 6-membered carbocyclic ring.
    Type: Grant
    Filed: March 10, 1993
    Date of Patent: August 23, 1994
    Assignee: AGFA-Gevaert AG
    Inventors: Jorg Hagemann, Gunter Helling
  • 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: 5336591
    Abstract: A silver halide color photographic material comprising a support having thereon at least one blue-sensitive silver halide emulsion layer, wherein said blue-sensitive silver halide emulsion layer contains at least one yellow dye forming coupler represented by the following general formula (1) or (2), and at least one yellow dye forming coupler represented by the following general formula (F): ##STR1## wherein X.sub.1 and X.sub.2 each represents an alkyl group, an aryl group or a heterocyclic group; X.sub.3 represents an organic residue which forms a nitrogen-containing heterocyclic group together with >N--; Y represents an aryl group or a heterocyclic group; and Z represents a group which is capable of being released when the coupler of general formula (1) or (2) reacts with an oxidation product of a developing agent; ##STR2## wherein R.sub.20 represents a tertiary alkyl group; R.sub.21 represents a hydrogen atom, a halogen atom, an alkoxy group, an aryloxy group, an alkyl group or a dialkylamino group; R.
    Type: Grant
    Filed: March 4, 1992
    Date of Patent: August 9, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mitsuru Yamamoto, Akira Ogawa
  • Patent number: 5336593
    Abstract: The improved silver halide color photographic material contains at least one pyrazolotriazole base magenta coupler represented by the following general formula [Ia] or [Ib]: ##STR1## This photographic material is improved in image keeping quality, especially in lightfastness, without lowering the efficiency of color formation and it also insures good color reproduction.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: August 9, 1994
    Assignee: Konica Corporation
    Inventors: Koji Daifuku, Hiroshi Kita, Yutaka Kaneko
  • Patent number: 5330888
    Abstract: A silver halide color photographic material comprises a support having thereon at least one silver halide emulsion layer. At least one layer of silver halide emulsion layer contains at least one pyrrolotriazole cyan coupler of formula (I) or (II) and at least one lipophilic compound selected from the group consisting of phenol compounds of formula (A), sulfur peroxide compounds of formula (B) and amide compounds of formula (C): ##STR1## wherein the substituents are as defined in the specification.
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: July 19, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Yasuhiro Yoshioka, Nobuo Seto
  • Patent number: 5330887
    Abstract: A silver halide color photographic material comprising a support having on one side thereof at least one silver halide emulsion layer corresponding to each of the colors cyan, magenta, and yellow in which each of the colors cyan, magenta and yellow, respectively, are formed, wherein the layer which forms a magenta color is a green sensitive layer comprising (A) at least one coupler represented by formula (I) or formula (II) below ##STR1## wherein R.sub.1, R.sub.2, R'.sub.2 and X are as defined in the above specification and (B) silver halide grains which have been spectrally sensitized in such a way that they have a peak sensitivity between 540 nm and 555 nm by at least one spectrally sensitizing dye represented by the formulae (A), (B) and (C) below ##STR2## wherein W.sub.1, W.sub.2, V.sub.1, V.sub.2, V.sub.3, V.sub.4, V.sub.5, V.sub.6, R.sub.21, R.sub.22, R.sub.23, R.sub.24, R.sub.25, R.sub.26, R.sub.27, R.sub.28, R.sub.29, Y, X.sub.1, X.sub.2, X.sub.
    Type: Grant
    Filed: June 23, 1992
    Date of Patent: July 19, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunori Hasebe, Kiyoshi Nakazyo
  • 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: 5318884
    Abstract: Photographic silver halide materials and processes employ at least one coupler having a coupling-off group which includes a carbocyclic or heterocyclic ring which bears a silyl substituent on at least one of its ring carbon atoms and is attached via another of its ring atoms either directly or through a linking group or atom to the coupling position of the coupler. The silyl substituent bears three groups which are independently aromatic groups, heterocyclic groups, aliphatic groups or additional silyl groups bonded through a linking atom to the silicon atom in said silyl substituent.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: June 7, 1994
    Assignee: Eastman Kodak Company
    Inventor: Sundaram Krishnamurthy
  • Patent number: 5314797
    Abstract: There is disclosed a silver halide color photographic material comprising a photosensitive silver halide emulsion layer that contains an acylacetamide yellow dye-forming coupler whose acyl group is represented by formula (I) and a high-boiling organic solvent, wherein the weight ratio of the high-boiling solvent to the coupler contained in said layer is 0.3 or below. ##STR1## wherein R.sub.1 represents a monovalent group, Q represents a group of nonmetallic atoms required to form together with C a 3- to 5-membered hydrocarbon ring or a 3- to 5-membered heterocyclic ring that contains a hetero atom selected from the group consisting of N, O, S, and P, provided that R.sub.1 is not a hydrogen atom and it does not bond to Q to form a ring.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: May 24, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Yoshioka, Yoshio Shimura, Hidetoshi Kobayashi
  • Patent number: 5310643
    Abstract: Compounds corresponding to Formula I are suitable as light stabilizers for the image dyes produced from colour couplers by chromogenic development. They are also suitable as oil formers for the colour couplers. In a colour photographic recording material, they are preferably used in combination with a pyrazoloazole coupler and associated with a light-sensitive silver halide emulsion layer. ##STR1## In Formula I, R.sup.1 denotes H, a group which can be split off under alkaline conditions, alkyl or aryl;R.sup.2 denotes OH, alkyl, aryl, alkoxy or ##STR2## R.sup.3, R.sup.4, R.sup.5 and R.sup.6 denote H, OH, COOH, SO.sub.3 H, SO.sub.2 H, alkyl, aryl, alkoxy, sulphonyl, sulphamoyl, acylamino or ##STR3## and at least one of the groups R.sup.2, R.sup.3, R.sup.4 R.sup.5 and R.sup.6 is a group of the formula ##STR4## A denotes an alkylene group having 1-6 carbon atoms, n stands for 0 or 1,R.sup.7 denotes H or an optionally substituted alkyl group,R.sup.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: May 10, 1994
    Assignee: Agfa Gevaert Aktiangesellschaft
    Inventors: Gunter Helling, Jorg Hagemann
  • Patent number: RE34697
    Abstract: A silver halide light-sensitive material having a support and at least one silver halide emulsion is provided. The silver halide emulsion layer contains in combination at least one cyan coupler of Formula (I) and at least one cyan coupler of Formula (II).
    Type: Grant
    Filed: May 29, 1990
    Date of Patent: August 16, 1994
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shun Takada, Kaoru Onodera, Takashi Kadowaki