Open Chain Keto-methylene Coupler Patents (Class 430/556)
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Patent number: 5415989Abstract: 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: GrantFiled: February 22, 1994Date of Patent: May 16, 1995Assignee: Agfa-Givaert AGInventors: Erich Wolff, Dieter Lowski
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Patent number: 5405737Abstract: Disclosed herein is a light-sensitive material which has a high sensitivity and excels in yellow-image storage stability and pressure resistance. The material has blue-sensitive emulsion layers containing specific acylacetoamide type yellow dye-forming couplers represented by formula (I): ##STR1## wherein R.sub.1 is a monovalent group, Q is a non-metal atom group which bonds to C to form 3- to 5-membered hydrocarbon ring and R.sub.1 is not a hydrogen atom and does not bond to Q to form a ring, at least one of the blue-sensitive emulsion layers contains at least one silver halide emulsion (A) having silver halide grains, 50% or more of which contain 10 or more dislocation lines per grain.Type: GrantFiled: September 14, 1992Date of Patent: April 11, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Yoshinori Shibata
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Patent number: 5399473Abstract: 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: GrantFiled: April 10, 1992Date of Patent: March 21, 1995Assignee: Fuji Photo Film Company, Ltd.Inventors: Akiko Shono, Nobuo Seto
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Patent number: 5395749Abstract: 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: GrantFiled: November 12, 1993Date of Patent: March 7, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Masayuki Negoro, Hiroo Takizawa, Masakazu Morigaki
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Patent number: 5378594Abstract: 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: GrantFiled: September 17, 1991Date of Patent: January 3, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Kentaro Okazaki, Naoto Oshima, Kiyoto Takada
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Patent number: 5376513Abstract: 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: GrantFiled: November 9, 1993Date of Patent: December 27, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Keiji Mihayashi
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Patent number: 5374499Abstract: 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: GrantFiled: December 6, 1993Date of Patent: December 20, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Senzo Sasaoka, Morio Yagihara
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Patent number: 5374507Abstract: A silver halide color photographic light-sensitive material capable of providing a dye image having excellent color reproducibility, sharpness and image fastness.Type: GrantFiled: July 8, 1993Date of Patent: December 20, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuhiro Yoshioka
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Patent number: 5362617Abstract: 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: GrantFiled: May 12, 1993Date of Patent: November 8, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Masakazu Morigaki, Kohzaburoh Yamada, Nobuo Seto, Yasuhiro Yoshioka
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Patent number: 5360713Abstract: Yellow dye-forming couplers of the acylacetanilide class, having an electron withdrawing group or electronegative element attached to the keto functional group, have excellent light-absorption characteristics and are useful in photographic elements.Type: GrantFiled: November 12, 1992Date of Patent: November 1, 1994Assignee: Eastman Kodak CompanyInventors: Ping W. Tang, Philip T. S. Lau, Stanley W. Cowan
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Patent number: 5356767Abstract: A silver halide photographic light-sensitive material includes a support, and at least one light-sensitive silver halide emulsion layer formed on the support, wherein at least one of the light-sensitive silver halide emulsion layers contains at least one type of an acylacetamide type yellow dye forming coupler having an acyl group represented by formula (I) below, and at least one type of a compound represented by formula (W) below: ##STR1## wherein DI represents a development inhibitor.Type: GrantFiled: March 13, 1992Date of Patent: October 18, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Masayoshi Toyoda, Yasuhiro Yoshioka
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Patent number: 5350666Abstract: 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: GrantFiled: June 26, 1991Date of Patent: September 27, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Masuji Motoki, Atsuhiro Ohkawa, Keiji Mihayashi
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Patent number: 5336591Abstract: 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: GrantFiled: March 4, 1992Date of Patent: August 9, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Mitsuru Yamamoto, Akira Ogawa
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Patent number: 5328812Abstract: A dye image-forming method comprising color developing an image wise exposed silver halide color photographic material comprising a support having thereon a layer containing an acylacetamide yellow coupler having an acyl group represented by a following formula (YI) ##STR1## wherein R.sub.1 represents a monovalent group; Q represents a group of atoms necessary to form 3- or 5-membered hydrocarbon ring or a 3- to 5-membered heterocylcic ring; provided that R.sub.1 is not a hydrogen atom and is not combined with Q to form a ring; with a developing solution containing at least one aromatic primary amine color developing agent represented by formula (D) or (E): ##STR2## wherein R.sub.4 represents a linear or branched alkyl group having 1 to 6 carbon atoms or a linear or branched hydroxyalkyl group having 3 to 6 carbon atoms; R.sub.5 represents a linear or branched alkylene group having 3 to 6 carbon atoms or a linear or branched hydroxyalkylene group having 3 to 6 carbon atoms; R.sub.Type: GrantFiled: February 18, 1993Date of Patent: July 12, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Akimitsu Haijima, Masato Taniguchi
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Patent number: 5316903Abstract: There is disclosed a silver halide color photographic material which comprises a compound selected from the group consisting of sparingly water-soluble epoxy compounds represented by formula (I), (II), or (III) given below and a dye-forming coupler in a layer on a base. ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 each represent an alkyl group or a halogen atom, L.sup.1 and L.sup.2 each represent a divalent aliphatic organic group, M represents an oxygen or 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 a real number of 0 to 20, l is 1 or 2, and m is an integer of 2 to 4.Type: GrantFiled: August 14, 1991Date of Patent: May 31, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Hideki Tomiyama
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Patent number: 5314797Abstract: 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: GrantFiled: August 12, 1991Date of Patent: May 24, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhiro Yoshioka, Yoshio Shimura, Hidetoshi Kobayashi
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Patent number: 5306604Abstract: Photographic silver halide materials are disclosed comprising a support and a silver halide emulsion layer having associated therewith a coupler having in a non-coupling position a silyl substituent represented by the formula: ##STR1## wherein R.sub.1 through R.sub.4 individually are unsubstituted or substituted aliphatic, aromatic or heterocyclic groups, R.sub.5 is an unsubstituted or substituted aliphatic, aromatic or heterocyclic group which can be bonded to a non-coupling position of a second coupler moiety, and n=0, 1 or 2. In a preferred embodiment, the coupler is a photographic image dye-forming coupler. Processes for developing images in the photographic materials are also disclosed.Type: GrantFiled: December 7, 1992Date of Patent: April 26, 1994Assignee: Eastman Kodak CompanyInventor: Sundaram Krishnamurthy
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Patent number: 5302503Abstract: A silver halide color photographic light-sensitive material includes a support and at least one hydrophilic colloid layer formed on the support. The hydrophilic layer contains a coupler compound which is represented by formula (I) below and has a high dye formation rate and a high color forming density. This silver halide color photographic light-sensitive material can achieve an improved sharpness and a high sensitivity:A--(SO.sub.2 NHCONR.sup.1 R.sup.2).sub.n Formula (I)(wherein A represents a coupler moiety, each of R.sup.1 and R.sup.2 independently represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heterocyclic group, and n represents an integer of 1 or more, if n being an integer of 2 or more, respective R.sup.1 's and R.sup.2 's being able to be the same or different, and A and R.sup.1, A and R.sup.2, or R.sup.1 and R.sup.2 being able to combine to form a ring.Type: GrantFiled: February 18, 1992Date of Patent: April 12, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoki Saito, Keiji Mihayashi, Takayoshi Kamio
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Patent number: 5298375Abstract: Disclosed is a silver halide color photographic material which contains a particular epoxy compound having slight solubility in water, an acylacetamide type yellow dye forming coupler the acyl group of which is a cycloalkane type and a pyrazolotriazole type magenta dye forming coupler which contains specified substituents and splitting-off group to produce color images of high keeping quality, especially to produce a yellow dye image with excellent hue and reduced discoloration upon long-range storage in the dark, and, what is more, to inhibit magenta color stain from generating in the yellow dye image.Type: GrantFiled: November 17, 1992Date of Patent: March 29, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuaki Deguchi
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Patent number: 5296339Abstract: A method for processing an imagewise exposed silver halide color photographic material comprising color developing the silver halide color photographic material with a color developer and then processing the photographic material with a processing solution having bleaching activity, in which the photographic material contains a coupler represented by the following general formula (I) and the replenishment rate of the color developer is not more than 600 ml/m.sup.2 of photographic material: ##STR1## wherein R.sup.1 represents a group of nonmetallic atoms necessary for forming a 5-membered unsaturated heterocyclic ring together with a ##STR2## R.sup.2 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aromatic group or a heterocyclic group; R.sup.3 represents an alkyl group, an alkenyl group, an alkynyl group, an aromatic group, an alkoxy group, an aryloxy group, a heterocyclic oxy group or ##STR3## wherein R.sup.4 and R.sup.Type: GrantFiled: February 28, 1992Date of Patent: March 22, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Keiji Mihayashi
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Patent number: 5294524Abstract: There is disclosed a silver halide color photographic material which comprises in a blue-sensitive silver halide emulsion layer acylacetamide yellow dye-forming couplers represented by the following formula (I) and in a red-sensitive silver halide emulsion layer cyan dye-forming couplers represented by the following formula (II) or (III): ##STR1## wherein R.sub.1 represents a monovalent group, Q represents a group of non-metallic atoms required to form together with the C a substituted or unsubstituted 3- to 5-membered cyclic hydrocarbon group or a substituted or unsubstituted 3- to 5-membered heterocyclic group having therein at least one heteroatom selected from a group consisting of N, O, S, and P, and Y.sub.R represents a residue remaining after removing the acyl group from the acylacetamide yellow dye-forming coupler, provided that R.sub.1 is not a hydrogen atom and does not bond to Q to form a ring, ##STR2## wherein R.sup.1 represents --CONR.sup.4 R.sup.5, --SO.sub.2 NR.sup.4 R.sup.5, --NHCOR.sup.Type: GrantFiled: March 11, 1992Date of Patent: March 15, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshio Ishii, Yasuhiro Yoshioka, Hidetoshi Kobayashi
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Patent number: 5294530Abstract: A silver halide color photographic material comprising a support having thereon one or more hydrophilic colloid layers, at least one layer which is a light-sensitive silver halide emulsion layer containing in the same layer a color coupler selected from a yellow coupler and a cyan coupler and at least one anti-fading agent represented by formula (I): ##STR1## The novel anti-fading agent effectively prevents yellow and cyan dye images from fading or discoloration, and does not adversely affect other photographic properties.Type: GrantFiled: May 14, 1992Date of Patent: March 15, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Seto, Masakazu Morigaki
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Patent number: 5294531Abstract: A bicyclo[m.n.0]alkane-1-ylcarbonylacetamide-based yellow dye-forming coupler wherein m represents an integer of 2 to 5, n represents an integer of 1 to 3, the sum of m and n is an integer of 3 to 7, and 0 represents zero.Type: GrantFiled: September 16, 1992Date of Patent: March 15, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Kobayashi, Yasuhiro Yoshioka, Yoshio Shimura
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Patent number: 5294527Abstract: There is disclosed a silver halide color photographic material having at least one silver halide emulsion layer on a base, which comprises in said silver halide emulsion layer a dispersion including at least one yellow coupler represented by the following formula (1) or (2) and at least one water-insoluble homopolymer or copolymer: ##STR1## wherein X.sub.1 and X.sub.2 each represent an alkyl group, an aryl group, or a heterocyclic group, X.sub.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 of the coupler represented by said formula with the oxidized product of a developing agent.Type: GrantFiled: June 24, 1992Date of Patent: March 15, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuaki Deguchi
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Patent number: 5284742Abstract: A silver halide color photographic light-sensitive material is disclosed, which gives a color image excellent in the light-fastness and color reproducibility. The light-sensitive material comprises a support and a silver halide emulsion layer, and the emulsion layer contains a yellow dye-forming coupler represented by Formula Y-I and a compound represented by Formula I: ##STR1## wherein R.sup.1 is an alkyl group or a cycloalkyl group; R.sup.2 is an alkyl group, cycloalkyl group, an acyl group or an aryl group; R.sup.3 is a substituent; n is 0 or 1; X.sup.1 is a substituent capable of splitting off upon coupling reaction with the oxidation product of a color developing agent; and Y.sup.1 is an organic group, ##STR2## wherein R.sub.A and R.sub.B are independently an alkyl group, a cycloalkyl group or an alkenyl group; and R.sub.C and R.sub.D are independently a hydrogen atom, an alkyl group, a cycloalkyl group or an alkenyl group.Type: GrantFiled: June 19, 1992Date of Patent: February 8, 1994Assignee: Konica CorporationInventors: Katsumasa Yamazaki, Shigeto Hirabayashi
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Patent number: 5283166Abstract: An acylacetamide-type yellow dye-forming coupler. The acyl group of the coupler is a bicyclo[1.1.1]pentane-1-carbonyl group, a bicyclo[2.1.1]hexane-1-carbonyl group, a bicyclo[2.2.1.]heptane-1-carbonyl group, a bicyclo[2.2.2]octane-1-carbonyl group, a tricyclo[3.1.1.0.sup.3,6 ]heptane-6-carbonyl group, a tricyclo[3.3.0.0.sup.3,7 ]octane-1-carbonyl group, or a tricyclo[3.3.1.0.sup.3,7 ]nonane-3-carbonyl group.Type: GrantFiled: May 14, 1992Date of Patent: February 1, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Kobayashi, Yasuhiro Yoshioka, Yoshio Shimura
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Patent number: 5278039Abstract: There is disclosed a silver halide color photographic light-sensitive material capable of providing a color image which does not discolor for a long period of time and having a high preservation property. The light-sensitive material contains a novel anti-fading agent represented by following Formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom, an aliphatic group, an aromatic group, a heterocyclic group, or an aliphatic oxy group; R.sub.2 and R.sub.3 may be the same or different and each represent an aliphatic group, an aromatic group, and a heterocyclic group; R.sub.4 represents a substituent; R.sub.5, R.sub.6, R.sub.7, R.sub.8 and R.sub.9 each represent a hydrogen atom and a substituent; R.sub.2 and R.sub.3, R.sub.3 and R.sub.4, and R.sub.4 and R.sub.2 may be combined with each other to form a 5- to 8-membered ring, and a dimer or other polymer may be formed with R.sub.1, R.sub.2, R.sub.3 and R.sub.4 ; R.sub.5 and R.sub.6, R.sub.6 and R.sub.7, R.sub.7 and R.sub.8, and R.sub.8 and R.sub.Type: GrantFiled: April 8, 1992Date of Patent: January 11, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Seto, Hiroshi Fukuzawa, Masakazu Morigaki
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Patent number: 5273869Abstract: Disclosed is a light-sensitive silver halide color photographic material having a photographic constituent layer containing an yellow color-forming coupler, a magenta color-forming coupler and a cyan color-forming coupler on a reflective support, characterized in that when each coupler is color-formed independently, the rate of a maximum value of CIE 1976L*a*b* color difference between a colored portion and a minimum density portion of cyan relative to a smaller value of yellow or magenta is 80% or more, and .DELTA.E.sub.Type: GrantFiled: March 7, 1991Date of Patent: December 28, 1993Assignee: Konica CorporationInventors: Shigeo Tanaka, Hirokazu Sato
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Patent number: 5273868Abstract: A silver halide color photographic material comprising a support having thereon at least one blue sensitive silver halide emulsion layer, at least one green sensitive silver halide emulsion layer and at least one red sensitive silver halide emulsion layer, wherein at least one type of acylacetamide type yellow coupler in which the acyl group represented by formula [I] indicated below is included in said blue sensitive silver halide emulsion layer and at least one type of magenta coupler represented by formula [M] indicated below is included in said green sensitive silver halide emulsion layer, ##STR1## wherein R.sub.1 represents a univalent group, Q represents a group of non-metal atoms which, together with C, is required to form 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 the group consisting of N, O, S and P, with the proviso with R.sub.Type: GrantFiled: November 15, 1991Date of Patent: December 28, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Mamoru Sakurazawa, Hidetoshi Kobayashi
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Patent number: 5260177Abstract: A silver halide color photographic light-sensitive material comprises a novel cyan dye-forming coupler or a combination of a specific cyan dye-forming coupler with an .alpha.-pivaloylacetoanilide type yellow dye-forming coupler or a pyrazoloazole type magenta dye-forming coupler, the specific cyan dye-forming coupler being contained in the silver halide emulsion layer in the form of an emulsion of lipophilic fine particles obtained by mixing the coupler with at least one water-insoluble and organic solvent-soluble homo- or co-polymer to form a dispersion. The silver halide color photographic light-sensitive material is excellent in the reproduction of yellow, magenta and cyan colors and has low fog of cyan. Thus, the light-sensitive material can provide color images excellent in the fastness of the cyan color images.The cyan dye-forming coupler is represented by general formula (II): ##STR1## wherein R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group; R.sub.Type: GrantFiled: May 18, 1992Date of Patent: November 9, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Aoki, Michio Ono, Katsuyoshi Yamakawa, Shigeru Yamazaki, Kei Sakanoue, Hidetoshi Kobayashi
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Patent number: 5250406Abstract: 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 (Y-I) and a compound represented formula (I). ##STR1## wherein R.sub.1 represents a monovalent group, O 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. ##STR2## wherein A represents an oxidation-reduction (redox) residue or its precursor, which is an atomic group that allows --Time).sub.Type: GrantFiled: October 7, 1991Date of Patent: October 5, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Mitsuru Yamamoto, Hidetoshi Kobayashi
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Patent number: 5238803Abstract: The present invention relates to a silver halide color photographic photosensitive material which contains a coupler which can be represented by formula (1): ##STR1## wherein X1 and X2 each represent an alkyl group or a heterocyclic group, Y represents an aryl group or a heterocyclic group, and Z represents a group which is eliminated when the coupler which is represented by formula (1) reacts with an oxidized form of a developing agent.Type: GrantFiled: November 8, 1991Date of Patent: August 24, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Ichijima, Naoki Saito, Keiji Mihayashi
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Patent number: 5227282Abstract: Disclosed is a light-sensitive silver halide color photographic material having at least three kinds of silver halide emulsion layers with different color sensitivities on a reflective support and also having yellow, magenta and cyan color forming couplers for forming colors related to developing of said silver halide emulsions, characterized in that when the coupler for forming color related to said color sensitive silver halide emulsion bearing primarily cyan color image is color formed to a cyan image density of 0.4, the color difference (color difference .DELTA.E in the CEI 1976 L*a*b* color space) from the minimum density is .DELTA.E.gtoreq.23.Type: GrantFiled: August 27, 1991Date of Patent: July 13, 1993Assignee: Konica CorporationInventors: Shigeo Tanaka, Hirokazu Sato
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Patent number: 5217857Abstract: A silver halide color photographic material comprising a support having thereon one or more layers having a surface pH of 5.0 to 6.5, including at least one silver halide emulsion layer containing a gold-sensitized silver halide emulsion having a silver chloride content of at least 90 mol % and a coupler represented by formula (I): ##STR1## wherein R.sub.1 represents an aryl group or a tertiary alkyl group; R.sub.2 represents fluorine, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, a dialkylamino group, an alkylthio group or an arylthio group; R.sub.3 is a group which is substituted for a hydrogen atom on the benzene ring; X represents hydrogen or a group capable of being cleaved upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent; and l is 0 or an integer from 1 to 4.Type: GrantFiled: January 11, 1991Date of Patent: June 8, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Yasuhiro Hayashi
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Patent number: 5215878Abstract: A photographic element is described which comprises a non-diffusible yellow dye-forming coupler having improved solubility in conventional coupler solvents. Yellow dye-forming couplers are also described.Type: GrantFiled: June 17, 1991Date of Patent: June 1, 1993Assignee: Eastman Kodak CompanyInventor: Siu C. Tsol
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Patent number: 5212056Abstract: A multilayer silver halide color photographic element comprising at least one blue-sensitive silver halide emulsion layer comprising a blue spectral sensitizing dye and a supersensitizing amount of a disulfide compound of formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4, equal or different, each represents a hydrogen atom or a lower alkyl group, R.sub.5 represents a hydrogen atom, a formyl group or an acetyl group, R.sub.6 and R.sub.7, equal or different, each represents a hydrogen atom or a lower alkyl group, or R.sub.6 and R.sub.7 represent the elements needed to complete an unsaturated cyclic nucleus.The combination provides a blue-sensitive silver halide emulsion layer having high sensitivity, low fog and good resistance against fading of the latent image.Type: GrantFiled: March 25, 1992Date of Patent: May 18, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Walter Beltramini, Ivano Delprato
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Patent number: 5192650Abstract: A silver halide color photographic material is disclosed, which comprises a support having thereon a photographic layer containing at least one compound represented by formula (I): ##STR1## wherein each of R.sub.01, R.sub.02 and R.sub.03, which may be the same or different, represents a hydrogen atom, an aliphatic group, an aromatic group or a heterocyclic group; R.sub.01 and R.sub.02, R.sub.02 and R.sub.03, and R.sub.01 and R.sub.03 may be combined with each other, provided that all of R.sub.01, R.sub.02 and R.sub.03 are not hydrogen atoms at the same time; each of X.sub.01, X.sub.02 and X.sub.03, which may be the same or different, represents a mere bond, --O--, --S-- or ##STR2## and R.sub.04 has the same meaning as R.sub.01.Type: GrantFiled: January 23, 1991Date of Patent: March 9, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Seto, Masakazu Morigaki
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Patent number: 5190853Abstract: A silver halide color photosensitive material is disclosed. The photosensitive material comprises a support and a hydrophilic colloidal layer containing a yellow coupler. According to the present invention, the layer further contains a color image stabilizer in an amount of 10 to 200 mole % based on the amount of the yellow coupler. The color image stabilizer and the yellow coupler are together contained in droplets of a medium which are dispersed in the layer. The color image stabilizer is an organic compound having the following formula [I] or [II]: ##STR1## in which each of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently is hydrogen, an alkyl group, an alkenyl group, an aryl group, a heterocyclic group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyl group, a sulfonyl group, a sulfinyl group, a phosphoryl group, a carbamoyl group or a sulfamoyl group; each of R.sup.5 and R.sup.Type: GrantFiled: November 22, 1989Date of Patent: March 2, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Seto, Masakazu Morigaki
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Patent number: 5183731Abstract: A silver halide color photographic light-sensitive material having, on a support, at least an emulsion layer containing a yellow coupler represented by the general formula (I) and a sparingly water soluble epoxy compound represented by the general formula (II): ##STR1## An excellent dye images with improved yellow image storability, particularly, heat and wet heat fastness can be obtained.Type: GrantFiled: January 25, 1991Date of Patent: February 2, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Nobuo Furutachi
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Patent number: 5162196Abstract: The present invention relates to a novel color coupler for photography and a silver halide color photographic material comprising the same, wherein the color coupler is one of the .beta.,.gamma.-unsaturated nitriles represented by formula (I). The invention provides for a color coupler, particularly a cyan coupler, which forms color images less in subsidiary absorption, good in color reproduction, and excellent in fastness, and a silver halide color photographic material having color images as described above. Further the color coupler can be synthesized from inexpensive raw material at a low cost ##STR1## wherein W represents a hydrogen atom or a group capable of being released when the compound is subjected to a coupling reaction with the oxidized product of an aromatic primary amine derivative, R.sub.1 represents a represents a nitrogen atom, R.sub.2 represents a substituent, if V represents ##STR2## R.sub.2 and R.sub.3 each represent substituent, provided that at least one of R.sub.2 and R.sub.Type: GrantFiled: November 20, 1990Date of Patent: November 10, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Sato, Yasuhiro Shimada, Hideaki Naruse
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Patent number: 5158864Abstract: Light sensitive color photographic silver halide material containing at least one light sensitive silver halide layer with which a conventional diffusion fast color coupler is associated and optionally other layers, both light sensitive and light insensitive, in which material the one or more than one light sensitive silver halide layer contains, at a concentration of 10.sup.-3 to 10 mmol/mol of silver halide, a compound corresponding to the following formulaA(Z).sub.n K (I)absorbed on and adhering to the silver halide grain and reacting with the developer oxidation product (EOP) with an effective reaction rate constant of K.sub.eff .gtoreq.10.sup.3, in which formulaA is a grain active bonding group,Z denotes a divalent intermediate membern is 0 or 1 andK denotes a group which forms a colored or uncolored reaction product in the reaction with the developer oxidation product,is found to have an improved sensitivity/graininess ratio.Type: GrantFiled: September 21, 1990Date of Patent: October 27, 1992Assignee: AGFA Gevaert AktiengesellschaftInventors: Reinhart Matejec, Erich Wolff, Heinrich Odenwalder, Hans hlschlager
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Patent number: 5143823Abstract: A color photographic recording material containing yellow couplers corresponding to the following formula is distinguished during chromogenic development by high sensitivity, steep gradation and high color density (even where development is carried out in the absence of benzyl alcohol). The yellow image dyes are highly resistant to moist or dry heat. ##STR1## in which X is a group releasable during the color coupling reaction;R.sub.1 is a C.sub.1-18 alkyl radical;R.sub.2 is a C.sub.1-18 alkyl radical or aralkyl.Type: GrantFiled: September 19, 1991Date of Patent: September 1, 1992Assignee: Agfa Gevaert AktiengesellschaftInventor: Friedrich-Wilhelm Kunitz
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Patent number: 5118599Abstract: Novel yellow image dye-forming couplers are disclosed. The couplers comprise an active open-chain keto-methylene group, an anilide group attached to the keto-methylene group, and a cyclic ether group attached to the keto-methylene group. The cyclic ether group comprises two oxygen atoms. Either the anilide group or the cyclic ether may carry a ballast group capable of immobilizing the coupler in the layer in which it is contained. Color photographic elements incorporating the novel couplers are also disclosed.Type: GrantFiled: February 7, 1991Date of Patent: June 2, 1992Assignee: Eastman Kodak CompanyInventors: Philip T. S. Lau, Danny R. Thompson, Frederick R. Green, III
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Patent number: 5104779Abstract: The invention relates to a multifunctional back layer for a photographic element and to a coating composition for manufacturing the multifunctional layer which comprises at least four components: (a) a surface-hydroxylated aluminum-modified silica, (b) an alkali-metal salt of an organic polyacid, (c) an aqueous dispersion of copolymers of acrylic-acid-alkyl-ester including free carboxylic groups of from 1-10 mole-% and of free hydroxyl groups of from 5-20 mole-%, wherein the sum of free carboxylic groups and free hydroxy groups does not exceed 25 mole-%, and (d) a trifunctional aziridine as a cross-linking means.Type: GrantFiled: July 14, 1989Date of Patent: April 14, 1992Assignee: Felix Schoeller Jr GmbH & Co. KGInventors: Eckehard Saverin, Hans-Udo Tyrakowski
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Patent number: 5104783Abstract: The present invention relates to a silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photograph material contains a coupler represented by the following general formula (I): ##STR1## wherein X and Y each represents a nitrogen atom or a methine group; n represents 1 or 2, when n is 2, two X's and two Y's may be the same or different; Z represents a non-metallic atomic group necessary to form a heterocyclic ring or aromatic ring together with ##STR2## W represents a hydrogen atom or a group capable of being released upon a reaction with an oxidation product of a developing agent; and R.sub.1 and R.sub.2 each represents a substituent, and at least one of R.sub.1 and R.sub.2 represents an electron attractive sustituent.The silver halide color photographic material containing the cyan dye forming coupler represented by the general formula (I) provides color images excellent in sharpness and preservability.Type: GrantFiled: February 8, 1991Date of Patent: April 14, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasuhiro Shimada, Seiji Ichijima
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Patent number: 5100771Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material contains at least one water-insoluble and organic solvent soluble homopolymer or copolymer and at least one yellow coupler of the formula: ##STR1## wherein R.sub.1 represents a tertiary alkyl group or an aryl group; R.sub.2 represents a hydrogen atom, a halogen atom or an alkoxy group; R.sub.3 represents an alkyl group or an aryl group; and X represents a group capable of being released upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent.The silver halide color photographic material has high sensitivity and excellent sharpness, color reproducibility and preservability, before and after processing, as is free from sweating.Type: GrantFiled: February 15, 1991Date of Patent: March 31, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Hirohiko Kato, Hidetoshi Kobayashi
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Patent number: 5091294Abstract: A silver halide color photographic material that has at least one silver halide emulsion layer on a support, which emulsion layer contains a compound represented by the following general formula (T) and a yellow coupler represented by the following general formula (Y-I): ##STR1## (where R.sub.1 and R.sub.2 are each a hydrogen atom or an alkyl group; R.sub.3 and R.sub.4 are each a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sub.5 and R.sub.6 are each a hydrogen atom, an alkyl group, an aryl group, an acyl group or an alkoxycarbonyl group; X is a divalent group having a carbon atom as a constituent atom of the 6-membered ring; and n is 0, 1 or 2): ##STR2## (where R'.sub.1 is an alkyl group or a cycloalkyl group; R'.sub.2 is an alkyl group, a cycloalkyl group, an acyl group or an aryl group; R'.sub.Type: GrantFiled: April 16, 1990Date of Patent: February 25, 1992Assignee: Konica CorporationInventors: Toyoki Nishijima, Masaki Tanji
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Patent number: 5084375Abstract: A color photographic light-sensitive material comprising a support having provided thereon a silver halide emulsion layer containing at least one each of cyan color image forming couplers represented by the following general formulae (I) and (II): ##STR1## and at least one compound represented by the formulae (III) or (IV): ##STR2## wherein all the symbols are defined in the specification.Type: GrantFiled: October 15, 1986Date of Patent: January 28, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Umemoto, Kozo Aoki
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Patent number: RE34697Abstract: 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: GrantFiled: May 29, 1990Date of Patent: August 16, 1994Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shun Takada, Kaoru Onodera, Takashi Kadowaki
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Patent number: H1429Abstract: 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: GrantFiled: June 19, 1992Date of Patent: April 4, 1995Assignee: Konica CorporationInventors: Motoi Nishimura, Hirokazu Sato, Katsumasa Yamazaki, Shigeto Hirabayashi