Substituted At Coupling Position With Other Than Hydrogen Patents (Class 430/387)
  • Patent number: 5202229
    Abstract: A method for forming a color photographic image is disclosed. The method comprises steps ofimage wise exposing to light a silver halide color photographic light-sensitive material which has a silver halide emulsion layer containing silver halide grains having a silver chloride content of not less than 50 mol %, and the amount of silver coated on said light-sensitive material is not less than 2 g/m.sup.2 in total, anddeveloping said exposed light-sensitive materiaI with a color developer containing a color developing agent represented by the following Formula I; ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 are independently a methyl group, an ethyl group, a propyl group, a hydroxyethyl group, sulfon-alkyl group or a .beta.-methanesulfonamidoethyl group, provided that at least one of groups represented by R.sub.1, R.sub.2 and R.sub.3 is a .beta.-methanesulfonamidoethyl group; X is surfuric acid, hydrochloric acid, p-toluene-sulfonic acid or phosphoric acid.
    Type: Grant
    Filed: July 23, 1991
    Date of Patent: April 13, 1993
    Assignee: Konica Corporation
    Inventors: Satoru Kuse, Hiroaki Kobayashi
  • Patent number: 5183728
    Abstract: Novel pyrazoloazole dye-forming couplers contain on the azole ring a group containing a carbon atom bonded directly to the azole ring and wherein this carbon atom is bonded directly to a nitrogen atom in the group. Such couplers provide advantageous bathochromic hue shift in dyes formed from the couplers. These couplers are useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: September 12, 1990
    Date of Patent: February 2, 1993
    Assignee: Eastman Kodak Company
    Inventors: Robert F. Romanet, Teh-Hsuan Chen
  • Patent number: 5176987
    Abstract: A method for processing an imagewise exposed color photographic material using fast developing time while maintaining stable processing conditions, reduced developer replenishing, and light fastness of developed color images. The method comprises developing a color photographic material containing silver halide grains comprising (i) substantially no silver iodide and (ii) at least about 80 mol % silver chloride with a developer comprising (i) substantially no benzyl alcohol and (ii) a p-phenylenediamine derivative represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group having from 1 to 4 carbon atoms and R.sup.2 represents a straight chain or branched alkylene group having 3 or 4 carbon atoms and wherein the developing is for a period of time of less than 30 seconds.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: January 5, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koichi Nakamura, Nobutaka Ohki
  • Patent number: 5145766
    Abstract: Compounds of the formula ##STR1## in which R is hydrogen or hydroxyl, R.sub.1 is alkyl, alkoxy, amino or aryl, and R.sub.2 is hydrocarbylcarbonyl or hydrocarbylsulfonyl, are highly suitable for stabilizing magenta couplers in photographic materials.
    Type: Grant
    Filed: May 13, 1991
    Date of Patent: September 8, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: David G. Leppard, David H. Steinberg, Henri Dubas
  • Patent number: 5143821
    Abstract: Novel 2-alkoxy-pyrazolo[1,5-a]benzimidazole color couplers form dyes with improved hue characteristics in photographic materials and processes. Such couplers can form magenta dyes upon oxidative coupling.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: September 1, 1992
    Assignee: Eastman Kodak Company
    Inventors: Michael W. Crawley, Andrew W. Gibson
  • Patent number: 5126234
    Abstract: A method for processing a silver halide color photographic material, wherein the silver halide color photographic material having a layer containing at leasst one pyrazolone-based magenta coupler having a coupling releasing group represented by formula (I) and at least one compound represented by formula (II), (III), (IV) or (V) is processed with a color developing solution having a developing solution temperature of 36.degree. to 50.degree. C. and a developing solution pH of 10.3 to 12.0; ##STR1##R.sup.11 --Z.sub.2 (IV) ##STR2## wherein the substituents are as defined in the text of the specification.
    Type: Grant
    Filed: August 11, 1989
    Date of Patent: June 30, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Hiroshi Fujimoto, Yasuhiro Yoshioka
  • Patent number: 5118591
    Abstract: The present inventions relate to a processing method for processing, with a developing time of not more than 180 seconds, a silver halide color photographic light-sensitive material comprising a support, provided thereon, with at least one silver halide emulsion layer, and at least one emulsion layer containing silver iodo-bromide with not less than 0.5 mole % of silver iodine, in particular to an active processing method wherein, a light-sensitive material B not only containing silver iodo-bromide with an iodine content of not less than 0.5 mole % but also a magenta coupler and providing a maximum magenta density, after exposed, and being capable of only satisfying the maximum magenta dye density M of M<2.0 if exposed under specific conditions and then subjected to color developing of a duration of three minutes 15 seconds at 38.degree. C. with a specific developer solution, is capable of offering a maximum magenta density satisfying M.gtoreq.2.
    Type: Grant
    Filed: January 25, 1991
    Date of Patent: June 2, 1992
    Assignee: Konica Corporation
    Inventors: Shigeharu Koboshi, Satoru Kuse, Masayuki Kurematsu, Moeko Hagiwara
  • Patent number: 5093227
    Abstract: There is disclosed a method for processing a silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent. In the method a silver halide color photographic material which comprises a pyrazoloazole-type coupler and an image-dye stabilizer, and has at least one of the layers comprising a silver halide emulsion of a high silver chloride and the total coating amount of silver of 0.75 g/m.sup.2 or below is processed, after exposure to light, with a color developer containing a specified amount of chloride ions and bromide ions, to improve development treatment characteristics, desilvering ability, and stability of an image.
    Type: Grant
    Filed: October 3, 1989
    Date of Patent: March 3, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Nakazyo, Kazuaki Yoshida
  • Patent number: 5071739
    Abstract: A silver halide color photographic light-sensitive material containing novel pyrazolotriazole type magenta couler is disclosed. The coupler is represented by the following Formula I: ##STR1## wherein R.sub.1 is a primary-alkyl, a secondary-alkyl group or a tertiary-alkyl group; R.sub.2 is an aralkyl group represented by the following Formula II; and X is a substituent capable of splitting off upon reaction with the oxidation product of a color developing agent; ##STR2## whrein R.sub.3, R.sub.4, R.sub.5 and R.sub.6, are each a hydrogen atom or an alkyl group, provided that at least one of R.sub.3 and R.sub.4 is an alkyl group when R.sub.1 is a primary alkyl group; R.sub.7 is a group having a --COOM group, in which M is a hydrogen atom or a cation; and l is 0 or 1. The light-sensitive material is excellent in color forming efficiency and color reproducibility.
    Type: Grant
    Filed: October 5, 1990
    Date of Patent: December 10, 1991
    Assignee: Konica Corporation
    Inventors: Hidenobu Ohya, Shuji Kida
  • Patent number: 5063143
    Abstract: A process for forming a color image wherein a color photographic material is developed with a processing solution containing a solvent for the silver halide in the presence of an aromatic primary amino color devloping agent. The color photographic material comprises, on a support, at least one layer containing (1) a coupler capable of forming a dye by reaction with an oxidized aromatic primary amino color developing agent and having a dye covering power of at least 0.75 and (2) a silver chlorobromide emulsion or silver chlorobromide emulsion containing at least 90 molar % of silver chloride.
    Type: Grant
    Filed: April 9, 1990
    Date of Patent: November 5, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takeshi Hirose, Akira Abe, Kiyoshi Nakazyo
  • Patent number: 5032497
    Abstract: A silver halide photo-sensitive material having at least one silver halide emulsion layer on a support, characterized by that said silver halide emulsion layer contains at least one magenta-forming coupler of 1H-pyrazolo[ 3,2-c]-s-triazole type which is substituted by a tertiary alkyl group at the 3-position and, by another releasable group than a hydrogen atom at the 7-position.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: July 16, 1991
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh, Kaoru Shinozaki
  • Patent number: 5024925
    Abstract: A method of forming a color image which comprises subjecting a silver halide color reversal photographic material to imagewise exposure and then to color reversal processing, said color reversal photographic material comprising a support having provided thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one blue-sensitive emulsion layer wherein the emulsion layers have an average silver iodide content of up to 5 mol %, and wherein the peak sensitivity of the red layer is in a range between 615 and 640 nm, wherein on the shorter wavelength side, 80% of the peak is in a range between 600 and 633 nm, 50% of the peak is in a range between 585 and 625 nm and 25% of the peak is in a range between 570 and 615 nm, and wherein on the longer wavelength side, 80% of the peak is in a range between 620 and 648 nm, 50% of the peak is in a range between 625 and 655 nm and 25% of the peak is in a range between 630 and 665 nm, wherein the wavelength difference between t
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: June 18, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Naoyasu Deguchi
  • Patent number: 5021325
    Abstract: A pyrazolotriazole dye-forming coupler containing on a carbon atom in a non-coupling position a ballast group derived from and bonded through a carboxylic acid portion of an unsubstituted or substituted amino acid provides useful magenta dye images in a photographic material and process and enables simplification of manufacture of the coupler. Such couplers are useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: December 19, 1989
    Date of Patent: June 4, 1991
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Burns, John W. Harder
  • Patent number: 5017466
    Abstract: A color-forming aminopyrimidine coupler represented by formula (I): ##STR1## where R.sub.1, R.sub.2, and R.sub.3 independently represent a hydrogen atom, a halogen atom, an alkoxy group, an aryloxy group, a heterocyclic-oxy group, an alkylthio group, an arylthio group, a heterocyclic-thio group, a substituted or unsubstitued amino group, a heterocyclic group bonding to the pyrimidine ring via a nitrogen atom thereof, an alkyl group or an aryl group; provided that at least one of R.sub.1, R.sub.2 and R.sub.3 is an unsubstituted or substituted amino group, and that when any one of R.sub.1, R.sub.2 or R.sub.3 contains a sulfonic acid group or a salt thereof, R.sub.1 , R.sub.2 or R.sub.3 contains at least one linear or branched alkyl group and that the total carbon atoms in the alkyl group(s) are to be more than 8; and R.sub.
    Type: Grant
    Filed: May 23, 1990
    Date of Patent: May 21, 1991
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidetoshi Kobayashi, Reiichi Ohi, Kei Sakanoue
  • Patent number: 4992361
    Abstract: Novel 1H-pyrazolo[3,2-c]-s-triazole dye-forming couplers containing in the 3-position a tertiary carbon group enable more extensive development of silver halide images in photographic silver halide materials and enable preparation of improved dispersions in photographic silver halide materials because of reduced tendency to form crystals. These couplers are useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: June 12, 1989
    Date of Patent: February 12, 1991
    Assignee: Eastman Kodak Company
    Inventors: Arlyce T. Bowne, Sharon E. Normandin
  • Patent number: 4988614
    Abstract: A silver halide photographic light-sensitive material containing a novel magenta dye-forming coupler. The coupler is represented by the following Formula I: ##STR1## wherein R.sub.1 is a hydrogen atom or a substituent; R.sub.2 is a substituted or unsubstituted aryl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted amino group; provided, R.sub.1 and R.sub.2 are allowed to bond together so as to complete a ring; Z is a hydrogen atom or a group capable of being split off upon coupling reaction with the oxidized product of a an aromatic primary amine developing agent; and EWG is an electron attractive group having a Hammet's .sigma. p value of more than 0.3. The photographic material has excellent color reproducibility and improved in color forming efficiency and graininess of images.
    Type: Grant
    Filed: September 20, 1989
    Date of Patent: January 29, 1991
    Assignee: Konica Corporation
    Inventors: Osamu Ishige, Hidetaka Ninomiya, Toyoaki Masukawa, Junichi Kohno
  • Patent number: 4973545
    Abstract: A photographic coupler containing an aryloxysilyl group (--X--O--Y) wherein X is substituted or unsubstituted arylene and Y is a silyl group) is useful in photographic silver halide elements and processes. Such a photographic coupler enables improved dispersibility and improved photographic properties.
    Type: Grant
    Filed: September 14, 1989
    Date of Patent: November 27, 1990
    Assignee: Eastman Kodak Company
    Inventor: Christopher P. Moore
  • Patent number: 4968591
    Abstract: A process for processing a silver halide color photographic material is described comprising subjecting a silver halide color photographic material comprising a support having provided thereon at least one photographic emulsion layer containing at least one kind of pyrazoloazole series magenta coupler represented by general formula (I) to photographic processing using a bath containing at least 1.times.10.sup.-4 mol/liter of a soluble iron salt as the final bath: ##STR1## wherein Za and Zb each represents .dbd.CH--, (wherein R.sub.2 represents a hydrogen atom or a substituent) or =N-; R.sub.1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group releasably upon coupling with the oxidation product of an aromatic primary amine developing agent; when Za=Zb is a carbon-carbon double bond, the double bond may be a part of an aromatic ring; the magenta coupler may form a dimer or polymer at R.sub.1, R.sub.2 or X; when at least one of said Za and Zb is ##STR2## at least one of the R.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: November 6, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Takeshi Hirose, Nobuo Furutachi
  • Patent number: 4942117
    Abstract: Novel pyrazoloazole couplers comprise an aryl or heterocyclic group having, in at least one of the ortho positions to the carbon atom (A) that is bonded to the pyrazoloazole nucleus, a substituent (B) that enables the pyrazoloazole coupler to form a magenta dye that has increased stability and has absorption controllably shifted, that is shifted hypsochromically relative to a dye formed from a similar coupler lacking substituent (B). These couplers are useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: September 26, 1989
    Date of Patent: July 17, 1990
    Assignee: Eastman Kodak Company
    Inventors: Sharon E. Normandin, Arlyce T. Bowne, Nigel E. Milner, David Clarke
  • Patent number: 4942118
    Abstract: Novel pyrazoloazole couplers comprise an aryl or heterocyclic group having, in at least one of the ortho positions to the carbon atom (A) that is bonded to the pyrazoloazole nucleus, a substituent (B) that enables the pyrazoloazole coupler to form a magenta dye that has increased stability and has absorption controllably shifted, that is shifted hypsochromically relative to a dye formed from a similar coupler lacking substituent (B). These couplers are useful in photogaphic silver halide materials and processes.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: July 17, 1990
    Assignee: Eastman Kodak Company
    Inventors: Sharon E. Normandin, Arlyce T. Bowne, Nigel E. Milner, David Clarke
  • Patent number: 4939074
    Abstract: A method for processing a silver halide color photographic light-sensitive material which comprises color developing a silver halide color photographic light-sensitive material, the coating amount of elemental silver thereon being not more than 0.8 g/m.sup.2, bleach-fixing the developed material and then water washing and/or stabilizing the bleach-fixed material, the method being characterized in that the concentration of bleaching agents in a bleach-fixing solution is not more than 0.1 mole/l or that of fixing agents in the solution is not more than 0.50 mole/l.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: July 3, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Takatoshi Ishikawa
  • Patent number: 4937178
    Abstract: The present inventions relate to a processing method for processing, with a developing time of not more than 180 seconds, a silver halide color photographic light-sensitive material comprising a support, provided thereon, with at least one silver halide emulsion layer, and at least one emulsion layer containing silver iodo-bromide with not less than 0.5 mole% of silver iodine, in particular to an active processing method wherein, a light-sensitive material B not only containing silver iodo-bromide with an iodine content of not less than 0.5 mole% but also a magenta coupler and providing a maximum magenta density, after exposed, and being capable of only satisfying the maximum magenta dye density M of M<2.0 if exposed under specific conditions and then subjected to color developing of a duration of three minutes 15 seconds at 38.degree. C. with a specific developer solution, is capable of offering a maximum magenta density satisfying M.gtoreq.2.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: June 26, 1990
    Assignee: Konica Corporation
    Inventors: Shigeharu Koboshi, Satoru Kuse, Masayuki Kurematsu, Moeko Hagiwara
  • Patent number: 4929540
    Abstract: A silver halide color photographic light-sensitive material comprising a support and at least one silver halide photographic emulsion layer on the support, said emulsion layer containing a 5-pyrazolone coupler having a coupling eliminable group of the following general formula (I) at the coupling site thereof: ##STR1## wherein L.sub.1 represents a substituted or an unsubstituted methylene or ethylene group; l represents 0 or 1; m represents 0 or an integer from 1 to 3; R.sub.1 represents a hydrogen atom, or a substituted or an unsubstituted alkyl, aryl or heterocyclic group; Y represents ##STR2## Q represents a single bond or nonmetal atoms necessary to complete a 5- to 8-membered ring together with ##STR3## said 5- to 8-membered ring may further have a saturated or an unsaturated ring condensed thereto; R.sub.
    Type: Grant
    Filed: July 17, 1989
    Date of Patent: May 29, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Takeshi Hirose
  • Patent number: 4925781
    Abstract: A silver halide color photographic material comprising a support having thereon a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer, wherein the silver halide color photographic material contains at least one kind of pyrazoloazole type magenta coupler represented by the general formula (I) described below and the total coating amount of silver in the photographic material is 0.75 g/m.sup.2 or less. ##STR1## wherein R.sup.1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon a coupling reaction with an oxidation product of an aromatic primary amine developing agent; Za, Zb and Zc each represents a methine group, a substituted methine group, .dbd.
    Type: Grant
    Filed: October 14, 1986
    Date of Patent: May 15, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Genichi Furusawa, Takatoshi Ishikawa, Nobuo Furutachi, Takeshi Hirose
  • Patent number: 4914007
    Abstract: An image forming process is disclosed, which comprises, in the photographic processing of silver halide color photographic materials, processing the color photographic material having a swelling degree of the photographic layer(s) of from 1.5 to 4.0 in the water washing step for the total water washing processing time of from 30 to 90 seconds. According to the process of the invention, the storage stability of color images obtained after processing and/or after lapsing a time does not reduce even when the water washing processing time is shortened.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: April 3, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshihiro Fujita, Takatoshi Ishikawa
  • Patent number: 4910124
    Abstract: A color image-forming process is described, which comprises developing with a color developing solution containing an aromatic primary amine developing agent a silver halide color photographic material containing at least on pyrazoloazole coupler represented by formula (Ia) or (Ib) ##STR1## wherein R.sub.1, R.sub.1 ', R.sub.3, Za, and Zb are defined in the specification. The image-forming process of the invention provides a silver halide color photographic material having high maximum color density, showing high coloring speed, and forming color images excellent in fastness. Further, the process of the invention can reveal the above-described excellent properties using a color developing solution containing substantially no benzyl alcohol.
    Type: Grant
    Filed: November 25, 1988
    Date of Patent: March 20, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Nobuo Furutachi
  • Patent number: 4894322
    Abstract: A light-sensitive silver halide color photographic material having photographic constituent layers including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support, wherein the content of silver bromide of the silver halides in the green-sensitive silver halide emulsion layer and red-sensitive silver halide emulsion layer is 5 to 65 mole %, and the green-sensitive silver halide emulsion layer contains at least one of the compounds represented by the formula shown below: ##STR1## wherein X represents a halogen atom or a monovalent organic group eliminable through coupling reaction with an oxidized product of a developing agent; R.sub.1 to R.sub.
    Type: Grant
    Filed: February 20, 1986
    Date of Patent: January 16, 1990
    Assignee: Konica Corporation
    Inventors: Shigeto Hirabayashi, Syoji Matsuzaka, Yukio Ohya, Yoshiyuki Nonaka
  • Patent number: 4892805
    Abstract: Novel pyrazoloazole dye-forming couplers containing at least one polyether group (A) comprising at least three ether (--O--) groups and terminated by a hydroxy, carboxy or sulfonamido group enables increased reactivity of the coupler in a photographic element and process. The couplers are useful in color photographic silver halide materials and processes.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: January 9, 1990
    Assignee: Eastman Kodak Company
    Inventors: Arlyce T. Bowne, Robert F. Romanet, Sharon E. Normandin
  • Patent number: 4882266
    Abstract: A silver halide color photographic material comprising a support having coated thereon at least one silver halide emulsion layer, in which said silver halide emulsion layer or a layer adjacent thereto contains a pyrazoloazole magenta coupler having at least one substituted alkyl group represented by the formula (I): ##STR1## wherein [A] represents a pyrazoloazole magenta coupler residual group; R.sup.1 is an alkyl group; R.sup.2 and R.sup.3 each is a hydrogen atom or a substituent, provided that both R.sup.2 and R.sup.3 are not hydrogen atoms at the same time; and n is 1, 2 or 3.
    Type: Grant
    Filed: February 7, 1989
    Date of Patent: November 21, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshio Kawagishi, Kiyoshi Nakazyo
  • Patent number: 4873179
    Abstract: A method for processing a silver halide color photographic material which comprises, after color development of a silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one compound capable of releasing, upon a reaction with an oxidation product of a developing agent, a compound which is capable of releasing a development inhibitor upon a reaction with another molecule of an oxidation product of a developing agent, treating said photographic material with a liquid having a fixing ability, followed by processing thereof while replenishing washing water or a stabilizing solution in an amount of from 2 to 50 times the amount carried over from the preceding bath per unit area of the silver halide color photographic material.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: October 10, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Abe, Keiji Mihayashi, Seiji Ichijima
  • Patent number: 4871652
    Abstract: Novel cyano substituted photographic couplers are represented by the formula: ##STR1## wherein m, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and Z are as defined in the specification. These couplers enable effective magenta dye formation upon reaction with an oxidized color photographic silver halide developing agent. The couplers are useful in photographic silver halide materials and processes.
    Type: Grant
    Filed: September 7, 1988
    Date of Patent: October 3, 1989
    Assignee: Eastman Kodak Company
    Inventor: Sharon E. Normandin
  • Patent number: 4865963
    Abstract: A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, said silver halide emulsion layer containing a pyrazoloazole series magenta coupler represented by general formula [I] ##STR1## wherein, R.sup.1 and R.sup.2 each represents a hydrogen atom or a substituent; and X represents a hydrogen atom or a releasing group which is released at the reaction with the oxidation product of an aromatic primary amine developing agent; at least one of said R.sup.1 and R.sup.2 is an alkyl group having a secondary or tertiary carbon atom directly bonded to the skeleton, at least one of said R.sub.1 and R.sub.2 is a sulfonamidoalkyl group or a sulfamoylalkyl group; and the magenta coupler may form a dimer or more polymer at the position of said R.sup.1, R.sup.2 or X.By the combined use of high boiling point organic solvent and ultraviolet absorbent, light fastness and coloring property are markedly improved.
    Type: Grant
    Filed: September 30, 1986
    Date of Patent: September 12, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Tadahisa Sato, Seiki Sakanoue, Akio Mitsui, Minoru Sakai, Masakazu Morigaki, Hidetoshi Kobayashi, Nobuo Sakai, Kiyoshi Nakazyo, Takeshi Hirose, Toshio Kawagishi
  • Patent number: 4857440
    Abstract: Photographic compound (A) capable of releasing a photographically useful group by means of intramolecular nucleophilic displacement exhibits increased resistance to hydrolysis when the compound contains in a coupling position a coupling-off group represented by the formula: ##STR1## wherein Q, R.sub.q, R.sub.1, R.sub.2, R.sub.3, n and PUG are as defined in the application. Such a compound (A) is useful in a photographic silver halide material and process.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: August 15, 1989
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Michael J. Carmody, John M. Buchanan
  • Patent number: 4853319
    Abstract: Novel pyrazolone photographic couplers contain in the coupling position a coupling-off group represented by the formula: ##STR1## wherein: L.sub.1 and L.sub.2 individually are unsubstituted or substituted methylene or ethylene;m and n individually are 0 or 1;Y is R.sub.1 or ZR.sub.2 ;R.sub.1 is an unsubstituted or substituted aryl or heterocyclic group, or is a secondary or tertiary carbon group represented by ##STR2## wherein R.sub.3 and R.sub.4 are selected from the group consisting of halogen, R.sub.2 and Z.sub.1 R.sub.b ; wherein Z is O, S, or NR.sub.a ; Z.sub.1 is O, S, or NR.sub.c ; and R.sub.2 is an unsubstituted or substituted alkyl, aryl, or heterocyclic group. R.sub.5, R.sub.6, R.sub.a, R.sub.b and R.sub.c are as defined in the specification. R.sub.3 optionally joins together with at least one of R.sub.4 and R.sub.
    Type: Grant
    Filed: December 14, 1987
    Date of Patent: August 1, 1989
    Assignee: Eastman Kodak Company
    Inventors: Sundaram Krishnamurthy, Brian H. Johnston, Kenneth N. Kilminster, David C. Vogel, Paul R. Buckland
  • Patent number: 4842994
    Abstract: A silver halide photographic material is described, comprising a support having provided thereon at least one silver halide photographic emulsion layer and comprising a bleach accelerator-releasing coupler, wherein said bleach accelerator-releasing coupler is represented by formula (I)A--(TIME).sub.n --S--X--(Y).sub.m --(Z)l]a (I)wherein A represents a coupler residual group; TIME represents a timing group; n represents 0 or 1; X represents a cyclic aliphatic group or a saturated heterocyclic group; Y represents an aliphatic group having from 1 to 8 carbon atoms which may contain a group of --O--, a group of --S--, a group of --COO--, a group of --CO--, a group of ##STR1## a group of ##STR2## a group of --SO.sub.2 --or a group of ##STR3## in its chain; m represents an integer of from 0 to 3, and when m represents 2 or more, the two or more Y groups may be the same or different; Z represents a group of --OH, a group of --COOM, a group of --SO.sub.
    Type: Grant
    Filed: November 12, 1987
    Date of Patent: June 27, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kei Sakanoue, Seiji Ichijima
  • Patent number: 4840884
    Abstract: A new photographic coupler comprises a coupling-off group bonded to the coupler at the coupling position represented by the formula:--L--NR.sup.1 --DYEwherein L is a linking group; NR.sup.1 is a substituted nitrogen atom bonded to DYE that together with NR.sup.1 is a releasable dye comprising an electrically neutral chromophore. Such a coupler enables dye hue stabilization without mordanting the dye formed. Such a new coupler is useful in a photographic silver halide element and process to provide increased dye density, higher contrast dye images, and lower pH sensitivity upon processing.
    Type: Grant
    Filed: October 19, 1987
    Date of Patent: June 20, 1989
    Assignee: Eastman Kodak Company
    Inventors: Jared B. Mooberry, Stephen P. Singer
  • Patent number: 4840877
    Abstract: 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 a magenta dye forming coupler represented by the general formula (I) and a compound represented by the general formula (II) in the same layer ##STR1## wherein R.sub.1 is represents an aromatic group, an aliphatic group or a heterocyclic group; R.sub.2 represents a substituent; Za, Zb, Zc and Zd, which may be the same or different, each represents an unsubstituted methine group, a substituted methine group or --N.dbd.,(R'--COO.sup.-).sub.n M.sup.n+ (II)wherein R' represents a substituent which imparts a diffusion-resistant property to the compound represented by the general formula (II); M.sup.n+ represents a hydrogen ion, a metal ion or an ammonium ion; and n represents an integer from 1 to 4.
    Type: Grant
    Filed: September 9, 1987
    Date of Patent: June 20, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Abe, Keiji Mihayashi, Hidetoshi Kobayashi, Hirohiko Kato
  • Patent number: 4839263
    Abstract: A silver halide photographic material containing a support and, provided thereon, at least one silver halide emulsion layer, this silver halide emulsion layer containing silver halide grains containing 90 mol % or more of silver chloride, a dye-forming coupler, and a compound represented by general formula [S]; ##STR1## wherein Q is a group of atoms necessary to complete a 5- or 6-membered heterocyclic ring or a 5- or 6-membered ring fused with a benzene ring and M is a hydrogen atom, an alkali metal or an ammonium group;the silver halide layer having been hardened by a hardener represented by formula [HDA] or [HDB]; ##STR2## wherein Rd.sub.
    Type: Grant
    Filed: July 29, 1987
    Date of Patent: June 13, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masanobu Miyoshi, Makoto Kajiwara, Kaoru Onodera, Eiichi Sakamoto
  • Patent number: 4835094
    Abstract: Color photographic images having advantageous sensitometric properties, in particular high maximum magenta color density, can be obtained by use of a color photographic recording material containing a pyrazoloazole type magenta coupler of formula IQ--L--COOH IIn the formulaQ denotes the bicyclic group capable of color coupling in a pyrazolo[3,2-c]-1,2,4-triazole magenta coupler andL denotes a linking member which is not split off in the color coupling reaction and which cointains a ballast residue unless a ballast residue which cannot be split off is attached to the non-coupling ring of the bicyclic group Q.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: May 30, 1989
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Erich Wolff, Hans-Joachim Schumann
  • Patent number: 4828970
    Abstract: There is disclosed a method for processing a light-sensitive silver halide color photographic material in which a light-sensitive silver halide color photographic material having at least one silver halide emulsion layer is exposed imagewise to light and then subjected to processing including at least a color development treatment or a color development treatment followed by a bleach-fixing treatment, the improvement wherein said at least one silver halide emulsion layer is a silver halide emulsion layer in which not less than 80 mole % of the total silver halide in the layer is silver chloride and the pH value of the bleach-fixing solution used in said bleach-fixing treatment is in the range of 4.5 to 6.8.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: May 9, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Satoru Kuse, Shigeharu Koboshi
  • Patent number: 4822724
    Abstract: In a reversal process for the formation of color photographic images which consists of a black and white development (first development) to obtain a first negative image, followed by exposure and/or uniform fogging of the residual silver halide and a further processing (including a second color development), to obtain a second visible (in transparency) color positive image, of a silver halide color multilayer material which comprises, coated on a support base, one or more red-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic cyan couplers, one or more green-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic magenta couplers and one or more blue-sensitive silver halide emulsion layers associated with dispersed non-diffusing hydrophobic yellow couplers, the improvement which consists of the reversal development of said magenta-forming layer being performed in the absence of a significant presence of oil.
    Type: Grant
    Filed: December 11, 1987
    Date of Patent: April 18, 1989
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Agostino Baldassarri, Marco Loiacano, Giuseppe Loviglio
  • Patent number: 4804617
    Abstract: This invention provides a processing method for exposed silver halide color photosensitive materials, which enables sufficient desilverization to be performed in a short time and highly photographic quality to be obtained. The processing method of this invention comprises the steps of: exposing silver halide color photosensitive material containing 5-pyrazolone-type or pyrazoloazole-type 2-equivalent magenta coupler to light; color developing said photosensitive material; and desilverizing said photosensitive material, wherein said desilverizing step uses a bleaching bath containing ferric complex salt aminopolycarboxylate, and thereafter uses a bleaching-and-fixing bath containing ferric complex salt aminopolycarboxylate.
    Type: Grant
    Filed: July 10, 1987
    Date of Patent: February 14, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshihiro Nishikawa, Akira Abe
  • Patent number: 4797351
    Abstract: A replenishing process for use in the development of an image-wise exposed silver halide color photographic light-sensitive material in which a color developer replenisher containing 0-3.0.times.10.sup.-3 mole of bromide is added to a color developer in a volume of between 0.5 and 9 ml per 100 cm.sup.2 of silver halide color photographic light-sensitive material.
    Type: Grant
    Filed: April 25, 1986
    Date of Patent: January 10, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Ishikawa, Shigeharu Koboshi, Kazuyoshi Miyaoka, Satoru Kuse
  • Patent number: 4791052
    Abstract: A silver halide photographic light-sensitive material containing a 1H-pyrazolo[3,2-c]-s-triazole type magenta coupler is disclosed. The magenta coupler has an --SO.sub.2 -- group and at least one group selected from the group consisting of a --COOM group and a --SO.sub.3 M group, M being a hydrogen atom or a cation, in its molecule. The photographic material is improved in color development performance and preservability of magenta images.
    Type: Grant
    Filed: March 27, 1987
    Date of Patent: December 13, 1988
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shuji Kida, Noritaka Nakayama, Katsunori Katoh, Takako Tanaka, Satoshi Nakagawa, Kosaku Masuda
  • Patent number: 4789626
    Abstract: A method for processing a silver halide color photographic material by fixing or bleach-fixing the material and immediately thereafter subjecting it to washing or stabilization, wherein (A) the silver halide color photographic material contains at least one of sensitizing dyes represented by the formulae (I) and (II) specified in the specification and at least one two-equivalent magenta polymer coupler which is derived from a specified monomer coupler, and (B) the amount of a replenisher in the washing step and/or the stabilization step falls within the range of 3 to 50 times, based on unit area of the material after being processed, the amount of each processing solution having been carried over from the preceding bath.
    Type: Grant
    Filed: December 12, 1986
    Date of Patent: December 6, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kei Sakanoue, Shinzo Kishimoto, Tadashi Ikeda
  • Patent number: 4778743
    Abstract: Disclosed is a method for processing a light-sensitive silver halide color photographic material, which comprises including at least the step of color developing, the step of processing with a liquor having fixing ability and the step of processing with a washing solution substitute as the final processing step, after imagewise exposure of a light-sensitive silver halide color photographic material containing at least one silver halide emulsion layer on a support, characterized in that at least one layer of the silver halide emulsion layer contains at least one coupler selected from the magenta couplers and the cyan couplers; washing solution substitute contains at least one compound selected from the group consisting of from 2.0.times.10.sup.-5 to 2.5.times.10.sup.-2 mol per liter of the washing solution substitute of the aldehydes, from 2.0.times.10.sup.-5 to 8.0.times.10.sup.-2 mol per liter of the washing solution substitute of the aldehyde derivatives and from 2.0.times.10.sup.-5 to 8.0.times.10.sup.
    Type: Grant
    Filed: April 27, 1987
    Date of Patent: October 18, 1988
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Ishikawa, Shigeharu Koboshi, Masayuki Kurematsu
  • Patent number: 4777121
    Abstract: Pyrazolo[3,2-c]-s-triazole dye-forming couplers containing in the 6-position a substituted or unsubstituted tertiary alkyl group and in the 3-position a substituted or unsubstituted aryl group in photographic materials and processes provide dyes of improved light stability. These couplers are particularly useful in combination with alkoxybenzene dye image stabilizers.
    Type: Grant
    Filed: December 3, 1987
    Date of Patent: October 11, 1988
    Assignee: Eastman Kodak Company
    Inventors: Paul R. Buckland, Llewellyn J. Leyshon
  • Patent number: 4774172
    Abstract: Silver halide color photographic materials are described, which comprise at least one silver halide emulsion layer coated on a support and which are characterized by the incorporation of a pyrazoloazole type coupler of the following general formula (I) into the silver halide emulsion layer(s) or the adjacent layer(s) thereto: ##STR1## wherein Za and Zb each may represent ##STR2## R.sup.1 and R.sup.2 each may represent a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being removed upon a coupling reaction with an oxidized form of an aromatic primary amine type developing agent; when Za.dbd.Zb is a carbon-carbon double bond, this may be a part of the aromatic ring in the formula: with the proviso that at least one of R.sup.1 and R.sup.2 is a group represented by general formulae (II) or (III): ##STR3## wherein R.sup.3 represents a hydrogen atom or a substituted or unsubstituted alkyl group; R.sup.4 represents a hydrogen atom or a substituent; R.sup.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: September 27, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshio Kawagishi, Takayoshi Kamio, Keizo Kimura, Tadahisa Sato, Nobuo Furutachi
  • Patent number: H533
    Abstract: A method of forming a color image comprising developing an imagewise exposed silver halide color photographic material with a developing solution containing an aromatic primary amine developing agent in the presence of at least one coupler represented by the following formula (I) or (II): ##STR1## wherein R.sub.1 represents a substituted or unsubstituted alkoxy group, an unsubstituted amino group, a substituted or unsubstituted alkylamino group, a substituted or unsubstituted arylamino group, or a substituted or unsubstituted N-alkylarylamino group; R.sub.2 represents a monovalent substituent; R.sub.3 represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group, or R.sub.1 and R.sub.
    Type: Grant
    Filed: April 22, 1987
    Date of Patent: October 4, 1988
    Inventors: Keizo Kimura, Shigeki Yokoyama, Tadahisa Sato
  • Patent number: H851
    Abstract: A silver halide color photographic material which contains at least one coupler represented by the general formula (I) or (II-A) and at least one compound represented by the following general formula (III) in the same light-sensitive silver halide layer: ##STR1## wherein R.sub.1 represents an alkyl group, an aryl group, or a heterocyclic group; R.sub.2 represents a hydrogen atom, or a substituent group; and X represents a hydrogen atom, or a coupling-off group; ##STR2## wherein R represents a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an oxy radical, or a hydroxyl group; R.sub.3, R.sub.4, R.sub.5 and R.sub.6, which may be the same or different, each represents a hydrogn atom, or an alkyl group; and A represents a nonmetallic atomic group necessary for forming a 5-, 6- or 7-membered ring; provided that R.sub.3 may be linked with R.sub.4, R.sub.5 may be linked with R.sub.6, R may be linked with R.sub.3, or R.sub.3 may be linked with A to form a 5- or 6-membered ring.
    Type: Grant
    Filed: December 8, 1988
    Date of Patent: November 6, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hideaki Naruse, Masakazu Morigaki, Nobuo Seto