Substituted At Coupling Position With Other Than Hydrogen Patents (Class 430/553)
  • Patent number: 5328817
    Abstract: There is disclosed a silver halide color photographic material which comprises at least one yellow coupler represented by the following formulas (1) or (2), and at least one cyan coupler represented by the following formula (C): ##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 >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, ##STR2## wherein R.sub.1 represents an alkyl group, an aryl group, or a heterocyclyc group, R.sub.2 represents an alkyl group having 2 or more carbon atoms, R.sub.
    Type: Grant
    Filed: April 20, 1992
    Date of Patent: July 12, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hajime Nakagawa, Yasuhiro Yoshioka
  • 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: 5318879
    Abstract: A color photographic element is disclosed comprising a support bearing at least one photographic silver halide emulsion layer, an image dye-forming coupler, and a coupler (A) capable of forming a compound that is washed out of the photographic element upon processing and capable of releasing a bleach accelerator group, wherein the coupler (A) is represented by the formula:(SOL).sub.x --COUP--(R.sup.1).sub.y --(R.sup.2).sub.z --BLEACH.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: June 7, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Stephen P. Singer, David T. Southby, Donald Singleton, Jr.
  • Patent number: 5316903
    Abstract: 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: Grant
    Filed: August 14, 1991
    Date of Patent: May 31, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hideki Tomiyama
  • Patent number: 5306603
    Abstract: A light-sensitive material having high light-sensitivity and high contrast and excelling in color reproduction at all light-exposed regions, yellow-image sharpness, magenta-image sharpness, and cyan-image sharpness, and having its sensitivity little deteriorated during storage. The material comprises at least one light-sensitive, silver halide emulsion layer on a support, and contains at least one specified compound which releases a photographically useful group, and a yellow-colored cyan coupler.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: April 26, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Atsuhiro Ohkawa
  • Patent number: 5306604
    Abstract: 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: Grant
    Filed: December 7, 1992
    Date of Patent: April 26, 1994
    Assignee: Eastman Kodak Company
    Inventor: Sundaram Krishnamurthy
  • Patent number: 5306607
    Abstract: A photographic element is disclosed comprising a support bearing at least one photographic silver halide emulsion layer and at least one photographic coupler comprising a pyrazolotriazole moiety (PT), the coupler having the formula ##STR1## wherein PT is a pyrazolotriazole moiety.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: April 26, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-hsuan Chen, Frank D. Coms, Donald Singleton
  • Patent number: 5302503
    Abstract: 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: Grant
    Filed: February 18, 1992
    Date of Patent: April 12, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoki Saito, Keiji Mihayashi, Takayoshi Kamio
  • Patent number: 5302500
    Abstract: A silver halide color light-sensitive material is disclosed, which-is improved in reproducibility of green color as well as orange color and sky blue color. The light-sensitive material comprises a support and a red-sensitive emulsion layer containing a cyan dye-forming coupler, a green-sensitive emulsion layer containing a magenta dye-forming coupler and a blue-sensitive emulsion layer containing a yellow dye-forming coupler provided on the support. The blue-sensitive silver halide emulsion layer has the maximum spectral sensitivity at a wavelength within the range of 415 nm to 430 nm and a spectral sensitivity of the blue-sensitive emulsion layer at 480 nm is not more than 35% of the maximum spectral sensitivity. The maximum spectral sensitivity and the spectral sensitivity at 480 nm are determined based on a reciprocal of light amount necessary for forming an image density of 0.7 above the minimum density of the blue-sensitive emulsion layer.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: April 12, 1994
    Assignee: Konica Corporation
    Inventors: Yasushi Irie, Hiroshi Shimazaki
  • Patent number: 5300419
    Abstract: Disclosed is a silver halide color photographic material containing at least one cyan dye forming coupler of the following general formula (C-1) and at least one compound of the following general formula (I) in the same layer of the material: ##STR1## where R.sub.0 represents an alkyl group, an alkenyl group, an aryl group, or a heterocyclic group;X represents a hydrogen atom, or a group capable of being split off by a coupling reaction with the oxidation product of an aromatic primary amine color developing agent; andAr represents an aromatic group; ##STR2## where R.sub.1, R.sub.2 and R.sub.3 each represent an aliphatic group, an aryl group, or a heterocyclic group;R.sub.4 represents a hydrogen atom, an aliphatic group, an aryl group, or a heterocyclic group;R.sub.1 and R.sub.2, or R.sub.3 and R.sub.4 may be bonded to each other to form a 5-membered to 8-membered ring along with the nitrogen atom in the formula;the compound of formula (I) may form a dimer or a higher polymer at the position of R.sub.1, R.
    Type: Grant
    Filed: May 27, 1992
    Date of Patent: April 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Hiroyuki Yoneyama, Masakazu Morigaki, Hidekazu Sakai, Hidetoshi Kobayashi, Shigeru Yamazaki
  • Patent number: 5300412
    Abstract: The present invention relates to a silver halide color photographic material having at least one light-sensitive silver halide emulsion layer or light-insensitive layer on a support, wherein the light-sensitive silver halide emulsion layer or a light-insensitive layer contains a yellow coupler selected from the group consisting of a yellow coupler represented by the following formula (I), a yellow coupler represented by the following formula (II) and combinations thereof, and a cyan coupler selected from the group consisting of a phenolic cyan coupler having a phenylureido group at the 2-position and a carbonamido group at the 5-position, a naphtholic cyan coupler having an amino group at the 5-position and combinations thereof; ##STR1## wherein X.sub.1 and X.sub.2 each represents an alkyl group, an aryl group, or a heterocyclic group; X.sub.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: April 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Naoki Saito
  • Patent number: 5298374
    Abstract: There is disclosed a silver halide color photographic material which comprises a hydrophilic colloid layer, on a paper base, containing 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 wherein the pH of raw paper is 5 to 9. ##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: Grant
    Filed: August 20, 1991
    Date of Patent: March 29, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideki Tomiyama, Akira Kase
  • Patent number: 5294524
    Abstract: 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: Grant
    Filed: March 11, 1992
    Date of Patent: March 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Ishii, Yasuhiro Yoshioka, Hidetoshi Kobayashi
  • Patent number: 5294530
    Abstract: 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: Grant
    Filed: May 14, 1992
    Date of Patent: March 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 5288599
    Abstract: A silver halide color photographic material and an image forming process using the same are disclosed. Said silver halide color photographic material comprises a reflecting support and provided thereon three light-sensitive silver halide emulsion layers each having a different light sensitivity to a different wavelength region, including 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. The silver halide color photographic material satisfies the following conditions.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: February 22, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Kazunori Hasebe, Kentaro Osazaki
  • Patent number: 5288594
    Abstract: A combination of a development inhibitor releasing coupler having a particular releasable mercaptotetrazole group; a concentration within the range of 2.5 to 25 mg/m.sup.2, that does not accelerate bleaching of the element upon exposure and processing, of a dye-forming naphtholic or acetanilide coupler comprising a coupling-off group represented by the formula ##STR1## as described in the specification, with a particular alkoxy-benzoyl yellow dye-forming coupler also as described in the specification in a photographic silver halide element and process enables improved dye images upon exposure and processing.
    Type: Grant
    Filed: March 26, 1993
    Date of Patent: February 22, 1994
    Assignee: Eastman Kodak Company
    Inventors: Joseph W. Manthey, David M. Niklewicz, Richard P. Szajewski
  • Patent number: 5283163
    Abstract: A photographic development inhibitor releasing compound comprises a releasable development inhibitor group comprising an amide group containing a carbon alpha to the amide functionality which is di- or tri-fluorinated. Such a compound is useful in photographic silver halide materials and processes to enable increased image sharpness and good interimage results.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: February 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Gregory J. Lestina, David T. Southby, Wojciech Slusarek, David A. Steele, Teh-Hsuan Chen
  • Patent number: 5273867
    Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a photographic layer includinga silver halide emulsion layer comprising silver halide grains and a binder and a specific pyrazolone type magenta coupler,a non-light-sensitive layer comprising a binder and a compound of Formula II being a liquid at 15.degree. C., and provided adjacently to the surface of said silver halide emulsion layer closer to sais support, anda layer provided at the outermost position of said photographic layer containing a compound represented by Formula II; ##STR1## wherein R.sub.11 and R.sub.12 are each a secondary or tertiary alkyl group and a number of carbon atoms Contained in the groups represented by R.sub.11 and R.sub.12 is 20 or more in total.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: December 28, 1993
    Assignee: Konica Corporation
    Inventors: Masahiro Shibuya, Takashi Kadowaki
  • Patent number: 5272043
    Abstract: A photographic DIR (development inhibitor-releasing) acetanilide coupler containing a carboxy group on the anilide moiety or a DIR naphtholic coupler containing on the 2-position a --CONH.sub.2 or --CONHCH.sub.3 group, capable upon oxidative coupling of forming a dye capable of being washed out of a photographic element upon processing, contains, in the coupling position, a coupling-off group comprising, in sequence, at least one ballasted linking group and at least one releasable development-inhibitor group (INH) which is a mercaptotetrazole group which enables a Log P in a pH 10 buffer of lower than -0.8. Such a DIR coupler is especially useful in a color photographic silver halide material and process which enables the dye formed from the DIR coupler to be washed out of the photographic material upon processing and enhanced color saturation through interimage effects.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: December 21, 1993
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Hans G. Ling
  • Patent number: 5266456
    Abstract: Disclosed is a silver halide color photographic material containing a silver halide emulsion having a high silver iodide content and containing a novel yellow colored cyan coupler. The material has a high sensitivity, a good graininess, an excellent color reproducibility and a sufficient sharpness. The material has at least one light-sensitive emulsion layer on a support and is characterized in that it contains at least one yellow colored cyan coupler, that the emulsion layer contains chemically sensitized silver halide grains, and that the chemically sensitized silver halide grain in the emulsion has a silver iodobromide phase with a silver iodide content of from 15 to 45 mol % as a distinctly layered structure and has a silver iodide content of more than 7 mol % based on the whole grain.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: November 30, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Takayoshi Kamio
  • Patent number: 5264332
    Abstract: There is disclosed a silver halide color photographic material containing a support having thereon three color-forming layers, which comprises, in said color-forming silver halide emulsion layers, high-silver-chloride grains, silver halide grains in the cyan color-forming layer being spectrally sensitized with a red-sensitive sensitizing dye having a prescribed reduction potential, and/or, in the cyan color-forming layer, an oil-soluble cyan coupler that cause coupling reaction with the oxidized product of an aromatic primary amine developing-agent to form a nondiffusible dye, a compound represented by formula (I) or (II), and a compound represented by formula (II) or (IV). ##STR1## wherein R.sub.1 and R.sub.3 each represent a hydrogen atom, an alkyl group, or a halogen atom, R.sub.2, R.sub.4, R.sub.5, R.sub.7, and R.sub.
    Type: Grant
    Filed: October 8, 1991
    Date of Patent: November 23, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeaki Otani, Hiroyuki Yoneyama
  • Patent number: 5258273
    Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a support, having thereon a red sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, wherein the red-sensitive comprises a low-speed red-sensitive silver halide emulsion sublayer, a medium-seed red-sensitive silver halide emulsion sublayer and a high-speed red-sensitive silver halide emulsion layer provided in this order from the support, and sensitivities S.sub.600, S.sub.620, S.sub.640, S.sub.660 and S.sub.680 of the medium speed red-sensitive emulsion sublayer which are each determined as reciprocal of the exposure amount of light of wavelength of 600 nm, 620 nm, 640 nm, 660 nm and 680 nm necessary for forming an image having a density of fog+0.1 in the medium speed red-sensitive emulsion sublayer, respectively, satisfy the following relation;0.5S.sub.640 <S.sub.600 < 0.9S.sub.640,0.7S.sub.640 <S.sub.
    Type: Grant
    Filed: September 3, 1991
    Date of Patent: November 2, 1993
    Assignee: Konica Corporation
    Inventors: Atsuo Ezaki, Katsutoyo Suzuki, Hiroshi Ikeda
  • Patent number: 5258270
    Abstract: A silver halide color photographic material having on a support at least one cyan dye-forming coupler-containing silver halide emulsion layer, at least one magenta dye-forming coupler-containing silver halide emulsion layer and at least one yellow dye-forming coupler-containing silver halide emulsion layer, wherein the cyan dye-forming coupler is a 1-naphthol type coupler having a naphtol nucleus, in which a group represented by the following formula (I) binds directly to the 2-position of the naphthol nucleus, and the magenta dye-forming coupler is a 1H-pyrazolo[1,5-b]-1,2,4-triazole type coupler, ##STR1## wherein R.sup.1 represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a cycloalkyl group, an aralkyl group, or an aryl group; R.sup.2 represents a substituent group; R.sup.3 and R.sup.4 each represents a hydrogen atom, an alkyl group, an aryl group, a halogen atom, an alkoxy group, or an aryloxy group; l represents an integer from 0 to 4; and m represents an integer from 0 to 4.
    Type: Grant
    Filed: October 4, 1991
    Date of Patent: November 2, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidetoshi Kobayashi, Hiroo Takizawa, Yoshio Ishii
  • Patent number: 5256527
    Abstract: The invention provides stable dispersions of couplers and methods of their formation. The stable dispersions are formed by the use of a nonionic water soluble polymer in combination with an anionic surfactant having a sulfate or sulfonate head group and a hydrophobic group of 8 to 20 carbons. The preferred nonionic water soluble polymers are polyethyleneoxide and polyvinylpyrrolidene. It is preferred that the dispersions have a pH of between about 5 and 5.5.
    Type: Grant
    Filed: September 9, 1991
    Date of Patent: October 26, 1993
    Assignee: Eastman Kodak Company
    Inventors: Krishnan Chari, James T. Beck
  • Patent number: 5250398
    Abstract: A photographic silver halide material and process comprises at least one image dye-forming coupler and at least one coupler (A) represented by the formula SOL-COUP-LINK-PUG wherein SOL is a water solubilizing amide group, COUP is a naphtholic coupler moiety that, upon reaction with oxidized developer is capable of releasing LINK-PUG and capable of forming a compound that is washed out of the photographic material during photographic processing; LINK-PUG is in turn capable of releasing a photographically useful group (PUG) during photographic processing; and wherein LINK is a carbamate linking group comprising a photographic ballast group on the nitrogen atom of the carbamate group. Such a photographic silver halide material enables formation of improved images.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: October 5, 1993
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-hsuan Chen
  • Patent number: 5250397
    Abstract: A method for processing a silver halide color photographic material is disclosed, which comprises: color developing a silver halide color photographic material with a color developer containing an aromatic primary amine color developing agent, followed by processing with a processing solution having a bleaching ability, wherein the replenishment rate of said color developer is in the range of 600 ml or less per m.sup.2 of the photographic material, and wherein said silver halide color photographic material contains at least one yellow colored cyan coupler.
    Type: Grant
    Filed: April 2, 1991
    Date of Patent: October 5, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsushige Kamada, Keiji Mihayashi, Yoshihiro Fujita
  • Patent number: 5236804
    Abstract: A silver halide photographic light-sensitive material comprises a support having thereon photographic component layers including a silver halide emulsion layer, wherein at least one of said photographic component layers contains a compound represented by the following formula:A--(Time)n--FL--BLwherein A represents a group capable of releasing a group of --(Time)n--FL--BL upon reaction with an oxidation product of a developing agent; Time represents a timing group; FL represents a group which comes to emit fluorescence when a --BL is split off; BL represents a group capable of being split off; and n represents an integer of 0 or 1.
    Type: Grant
    Filed: February 26, 1991
    Date of Patent: August 17, 1993
    Assignee: Konica Corporation
    Inventors: Shigeo Tanaka, Hirokazu Sato, Satoru Ikesu
  • Patent number: 5234800
    Abstract: A photographic naphtholic coupler comprising a ballast free naphtholic coupler moiety containing a --CONH.sub.2 group in the 2-position and a ballasted coupling-off group in the 4-position enables good wash out of dye formed upon oxidative coupling from a photographic material during processing of such a photographic material. Such a naphtholic coupler is useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: July 22, 1991
    Date of Patent: August 10, 1993
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-Hsuan Chen, Hans G. Ling
  • Patent number: 5225320
    Abstract: Method of processing a silver halide color photosensitive material which comprises the steps of a developing process, a bleach-fixing solution or a fixing solution, and then, without washing with water, treated with a stabilizing solution. The method is characterized in that the silver halide color photo sensitive material comprises a high boiling point organic solvent having a dielectric constant of 3.5 or more and the stabilizing solution comprises silicone having the surface tension 20 to 60.
    Type: Grant
    Filed: April 22, 1992
    Date of Patent: July 6, 1993
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Satoru Kuse, Shigeharu Koboshi
  • Patent number: 5223385
    Abstract: A silver halide color photographic material comprises at least one silver halide emulsion layer containing a substantially iodide free silver chlorobromide or silver chloride grain of which the silver chloride content is at least 90 mol. % and a color coupler. The color coupler is at least one compound represented by formula (I) or (II). The coupler is dispersed in the emulsion layer, as a dispersion of a fine lipophilic particle obtained by emulsification and dispersion of a solution obtained by dissolution of the coupler together with at least one homopolymer or copolymer which is insoluble in water and soluble in an organic solvent and a high boiling point organic solvent: ##STR1## R.sub.1, R.sub.4, and R.sub.5 represent aliphatic, aromatic or heterocyclic groups; R.sub.3 and R.sub.6 each represents a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group or an acylamino group, or R.sub.6 represents a group of non-metal atoms required to form, together with R.sub.
    Type: Grant
    Filed: January 9, 1989
    Date of Patent: June 29, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazunori Hasebe
  • Patent number: 5221599
    Abstract: A compound used as a silver halide photographic light sensitive material for releasing a photographically useful group (PUG) by the reaction with an oxidized developing compound during the developing process is disclosed.The compound has several timing groups so that the releasing can be controlled by several steps of the reactions to meet a required timing.The compound can be modified with various kinds of substituents so that the width of the reacting area is controlled.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: June 22, 1993
    Assignee: Konica Corporation
    Inventors: Eisaku Katoh, Shuichi Sugita, Shuji Kida
  • Patent number: 5210011
    Abstract: A silver halide color photographic photosensitive material comprising a support having thereon a at least one silver halide emulsion layer, wherein at least one cyan dye forming coupler represented by the formula (I) indicated below ##STR1## wherein all the symbols are defined in the specification and at least one cyan dye forming coupler which can be represented by the formula (C) indicated below ##STR2## wherein all the symbols are defined in the specification are present in a layer on said support.
    Type: Grant
    Filed: December 11, 1990
    Date of Patent: May 11, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Jiro Tsukahara, Hidetoshi Kobayashi
  • Patent number: 5204232
    Abstract: Disclosed is a light-sensitive silver halide photographic material having at least one silver halide emulsion layer on a support, characterized in that at least one layer of the above silver halide emulsion layers contains a compound represented by the following formula (I): ##STR1## wherein n represents 0 or 1; A represents a compound residue which cleaves a bonding to Time in the case of n=1 or a compound residue which cleaves one of bondings to FL in the case of n=0; Time represents a timing group which cleaves a bonding to FL after cleavage from A; and FL represents a compound residue which emits fluorescence by cleavage of a bonding to Time in the case of n=1 and a compound residue which emits fluorescence by cleavage of one of bondings to A in the case of n=0.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: April 20, 1993
    Assignee: Konica Corporation
    Inventors: Hirokazu Sato, Shigeo Tanaka, Satoru Ikesu
  • Patent number: 5200304
    Abstract: A multilayer silver halide color photographic material comprising a support having thereon 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, wherein the cyan color forming silver halide emulsion layer contains at least one oil-soluble cyan coupler capable of coupling with an oxidation product of an aromatic primary amine developing agent to form a substantially diffusion-resistant dye, represented by formula (I), at least one member selected from the compounds represented by formulae (II) and (III), and at least one compound represented by formula (IV).The silver halide color photographic material can be rapidly processed. Fluctuations of cyan dye density obtained therefrom owing to change in compositions of processing solutions can be prevented, and deterioration of the image formed therefrom during storage, due to cyan dye density caused after color development processing, can also be prevented.
    Type: Grant
    Filed: December 14, 1990
    Date of Patent: April 6, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Yoneyama, Nobutaka Ohki
  • Patent number: 5200305
    Abstract: A color photographic material containing color couplers which yield heat-stable dyes.A color photographic recording material containing cyan couplers which, during chromogenic development, yield cyan dyes having parameters a and b such thata.(1+b).ltoreq.1.5are suitable for the production of color negatives for multicopy operation in which a plurality of identical copies are successively prepared from the same original.In the above condition:a is the temperature coefficient of the absorption ##EQU1## and b is the temperature coefficient of the absorption wavelength .lambda..sub.(T=23.degree. C.
    Type: Grant
    Filed: September 27, 1990
    Date of Patent: April 6, 1993
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventors: Hans-Joachim Schumann, Erich Wolff
  • Patent number: 5192651
    Abstract: The present invention relates to photographic photosensitive material comprising a support having thereon at least one silver halide emulsion layer. The photosensitive material contains at least one cyan dye forming coupler represented by formula (I) ##STR1## and at least one cyan dye forming coupler represented by formula (II) ##STR2## in proportions, respectively from 20 to 99 wt % and from 1 to 80 wt %, wherein all the symbols are defined in the specification.
    Type: Grant
    Filed: December 19, 1990
    Date of Patent: March 9, 1993
    Assignee: Fuji Photo Film Co. Ltd.
    Inventors: Jiro Tsukahara, Hidetoshi Kobayashi
  • Patent number: 5192650
    Abstract: 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: Grant
    Filed: January 23, 1991
    Date of Patent: March 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Masakazu Morigaki
  • Patent number: 5183731
    Abstract: 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: Grant
    Filed: January 25, 1991
    Date of Patent: February 2, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Nobuo Furutachi
  • Patent number: 5183729
    Abstract: There is disclosed a method for forming a color image which comprises developing a silver halide color photographic material having a layer containing a cyan coupler represented by formula (I) with a color developer containing a color-developing agent represented by formula (D) ##STR1## wherein R.sup.1 represents an alkyl group, an alkenyl group, or a cycloalkyl group, R.sup.2 represents an alkyl group, alkenyl group, or cycloalkyl group having 4 to 30 carbon atoms in total, R.sup.3 represents an aryl group, and Z represents a hydrogen atom or a group capable of being released upon a coupling reaction, with a color developer containing a color-developing agent represented by the following formula (D): ##STR2## wherein R.sup.4 represents a hydrogen atom, a halogen atom, or a methyl group, R.sup.5 and R.sup.6 each represent a methyl group or an ethyl group, L represents a methylene group or an ethylene group, and n is 1 or 2.
    Type: Grant
    Filed: March 29, 1991
    Date of Patent: February 2, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideki Naito, Shigeki Yokoyama, Jiro Tsukahara
  • Patent number: 5178993
    Abstract: A method for rapidly processing a silver halide color photographic material is disclosed, comprising a support having at least one red-sensitive silver halide emulsion layer containing a cyan coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler and at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, wherein the photographic material contains a yellow colored cyan coupler, the total processing time for the photographic material is 8 minutes or less, and the processing solution having a bleaching ability for the photographic material contains an oxidizing agent having a redox potential of 150 mV or more. The rapid processing method yields excellent color reproducibility and the photographic material processed by the method has excellent resistance to fading.
    Type: Grant
    Filed: February 28, 1991
    Date of Patent: January 12, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Keiji Mihayashi
  • Patent number: 5178991
    Abstract: A novel silver halide color photographic material is provided, containing at least one coupler represented by formula (C-I) and at least one compound represented by formula (A-I) or (A-II) ##STR1## wherein Q.sub.1 represents an atomic group containing at least one nitrogen atom required to form a 5- or more membered nitrogen-containing heterocyclic ring together with the carbon atoms to which it is bonded; Z.sub.1 represents a hydrogen atom or a coupling-off group; R.sub.C1 represents an acyl or sulfonyl group; and R.sub.C2 represents a hydrogen atom or a C.sub.1-8 aliphatic group, or the substituents for R.sub.C1, R.sub.C2, Z.sub.1, or Q.sub.1 form a dimeric or polymeric coupler; ##STR2## wherein R represents a hydrogen atoms, an aliphatic group, an aromatic group, a heterocyclic group, or a hydrolyzable protective group; R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.
    Type: Grant
    Filed: January 7, 1991
    Date of Patent: January 12, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Kozo Aoki
  • Patent number: 5169749
    Abstract: The improved silver halide photographic material has a substantially colorless coupler that has a leaving group with a protected formyl group at the active site, said protected formyl group being such that subsequent to the elimination of the leaving group upon coupling reaction, the protective group for a formyl group undergoes cleavage, causing reaction with an aromatic primary amine to form a ballasted Schiff type dye. The novel substantially colorless coupler is capable of highly efficient dye formation.
    Type: Grant
    Filed: April 17, 1991
    Date of Patent: December 8, 1992
    Assignee: Konica Corporation
    Inventors: Eisaku Katoh, Shuji Kida, Shuichi Sugita
  • Patent number: 5162197
    Abstract: A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer containing at least one cyan coupler forming coupler represented by the general formula (I) and at least one compound represented by the general formulas (II) or (III): ##STR1## wherein R.sub.1 represents an aliphatic group, an aromatic group, a heterocyclic group, an aromatic amino group or a heterocyclic amino group; R.sub.2, R.sub.4 and R.sub.5 each represents an aliphatic group, an aromatic group or a heterocyclic group; R.sub.3 represents a hydrogen atom, a halogen atom, an aliphatic group, an aromatic group, an acylamino group, an aliphatic oxy group or an aromatic oxy group; R.sub.2 and R.sub.3 may combine with each other to form a 5-membered, 6-membered or 7-membered ring; Z represents a hydrogen atom or a group or atom which releases upon coupling with a developing agent; L.sub.1 and L.sub.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: November 10, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Aoki, Osamu Takahashi
  • Patent number: 5151343
    Abstract: A photographic naphtholic coupler comprising a ballast free naphtholic coupler moiety containing a --CONH.sub.2 group in the 2- position and a ballasted coupling-off group in the 4- position enables good wash out of dye formed upon oxidative coupling from a photographic material during processing of such a photographic material. Such a naphtholic coupler is useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: August 22, 1991
    Date of Patent: September 29, 1992
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-hsuan Chen, Hans G. Ling, John W. Harder, Arlyce T. Bowne
  • Patent number: 5141844
    Abstract: Photographic elements are described containing polymeric dye-forming couplers in which the polymer contains coupler moieties that upon reaction with oxidized color developing agent yield dyes of a least two different hues. In one embodiment a neutral dye is formed. In another embodiment a minor proportion of one coupler moiety is used to modify or current the spectral absorption characteristics of another coupler moiety.
    Type: Grant
    Filed: May 7, 1990
    Date of Patent: August 25, 1992
    Assignee: Eastman Kodak Company
    Inventor: Philip T. S. Lau
  • Patent number: 5139930
    Abstract: A silver halide photographic light-sensitive material which contains, on a support, a compound represented by the following Formula [I]: ##STR1## wherein R.sub.1 is alkyl, cycloalkyl, aryl, heterocyclic, alkoxy, aryloxy, alkylamino or arylamino;R.sub.2 is hydrogen, halogen, alkyl or alkoxy;R.sub.3 is alkyl, cycloalkyl or aryl; or R.sub.2 and R.sub.3 may be bonded together to form a 5- or 6-membered ring condensed to the phenolic ring; andZ is hydrogen or a group releasable by the coupling reaction with the oxidation product of an organic primary amine color developing agent,and a compound represented by the following Formula [II]: ##STR2## where R.sub.4 and R.sub.5 are alkyl, aryl, --COOH', --COOR', --OR', --NR', --NR'R", --CN, --NHCOR', --NHCONHR', or --CONHR', where R' and R" are alkyl or aryl; andR.sub.6 and R.sub.7 are alkyl or aryl containing at least one carboxy group or sulfonic acid group.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: August 18, 1992
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Takashi Kadowaki, Kaoru Onodera
  • Patent number: 5134061
    Abstract: Photographically useful organic compounds containing secondary-branched alkyl radicals with at least 15 C atoms corresponding to formula I have a low melting point, good solubility in oil formers and a low tendency towards crystallization which makes them particularly suitable for photographic applications. ##STR1## In formula I: PNOV is the residue of a photographically useful organic compound, for example a coupler or oil former;L is a chemical bond or a link between PNOV and X;X represents --O--, --S--, --SO--, --SO.sub.2 --, --NH--, --NR-- (R.dbd.alkyl or acyl), --CO-- or alkylidene;R.sup.1 and R.sup.2 are unbranched alkyl radicals containing at least 6 C atoms, with the proviso that R.sup.1 and R.sup.2 together contain at least 14 C atoms and, where X represents --CO-- or --CH.sub.2, at least 17 C atoms.
    Type: Grant
    Filed: March 18, 1991
    Date of Patent: July 28, 1992
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventor: Erich Wolff
  • Patent number: 5124241
    Abstract: There are disclosed a multilayer silver halide color photographic material comprising two kinds of cyan couplers and a multilayer silver halide color photographic material comprising two kinds of cyan couplers, a magenta coupler, and a yellow coupler in respective photosensitive layer. The disclosure as described provides a multilayer silver halide color photographic material that is good in color-forming property, that will be less stained, and that is improved in image-lasting quality and in fastness under severe conditions.
    Type: Grant
    Filed: October 19, 1990
    Date of Patent: June 23, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Ogawa, Nobuo Sakai, Ryosuke Ishida
  • Patent number: H1248
    Abstract: A Silver halide color photographic materials comprising a support having thereon at least one silver halide emulsion layer, wherein said material contains (1) at least one type of compound which reacts with the oxidized product of a primary aromatic amine based developing agent and releases a bleach accelerating agent, and (2) at least one type of cyan dye forming coupler represented by general formula (A) below: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, T and l' are defined as in the specification.
    Type: Grant
    Filed: June 14, 1988
    Date of Patent: November 2, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kei Sakanoue, Hidetoshi Kobayashi
  • 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