Heterocyclic Coupler Patents (Class 430/476)
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Publication number: 20030129529Abstract: The present invention describes modified pigment products comprising a pigment having attached at least one photopolymerizable group and at least one ionic or ionizable group. Dispersions, black matrixes, and resin compositions comprising these modified pigment products are also disclosed.Type: ApplicationFiled: January 7, 2003Publication date: July 10, 2003Inventors: Eugene N. Step, James A. Belmont
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Patent number: 6410216Abstract: Method of forming a photographic color image which comprises imagewise exposing a photographic silver halide color material and processing it with an alkaline processing solution in the presence of a sulphonhydrazide color developing agent and a 3-pyridinol color coupler optionally containing in the 2-position a ballasting group of such size and configuration as to render the coupler non-diffusible in photographic materials thus forming a dye image by reaction of the oxidized color developing agent and the color coupler.Type: GrantFiled: July 14, 1994Date of Patent: June 25, 2002Assignee: Eastman Kodak CompanyInventors: David Clarke, Paul Louis Reginald Stanley
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Patent number: 5849469Abstract: The invention provides a novel magenta coupler of the formula (I) ##STR1## wherein R.sup.1 and R.sup.2 are the same or different and are selected from H, alkyl, substituted alkyl, aryl, substituted aryl, heteroaryl, alkylthio, carboxylic acid or ester, primary or secondary amido, sulphonamido, mono or disubstituted amino, alkoxy or aryloxy; andX is H or a group capable of being released on oxidative coupling with a colour coupler.These magenta couplers do not have secondary dye absorptions in the blue region of the spectrum which leads to a better colour reproduction and are readily and economically synthesized.Type: GrantFiled: October 6, 1997Date of Patent: December 15, 1998Assignee: Eastman Kodak CompanyInventor: Michael William Crawley
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Patent number: 4942117Abstract: 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: GrantFiled: September 26, 1989Date of Patent: July 17, 1990Assignee: Eastman Kodak CompanyInventors: Sharon E. Normandin, Arlyce T. Bowne, Nigel E. Milner, David Clarke
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Patent number: 4937178Abstract: 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: GrantFiled: March 7, 1988Date of Patent: June 26, 1990Assignee: Konica CorporationInventors: Shigeharu Koboshi, Satoru Kuse, Masayuki Kurematsu, Moeko Hagiwara
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Patent number: 4917992Abstract: Salts of 1-phenyl-3-pyrazolidinones which are useful photographic silver halide developing agents.Type: GrantFiled: October 23, 1987Date of Patent: April 17, 1990Assignee: Ciba-Geigy AGInventors: Malcolm D. Tirel, William E. Long
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Patent number: 4830948Abstract: A method of forming color photographic images where a silver halide color photographic material containing a coupler which forms a dye by reaction with the oxidation product of an aromatic primary amine developing agent and containing an acid-processed gelatin in an amount of 25% by weight or more of the amount of the total gelatin coated is color developed, desilvered and then rinsed in water and/or stabilized. The total of the processing time of said desilvering, rinsing-in-water and stabilization steps is controlled to be 3 minutes or less, and/or the amount of replenisher added to the rinsing-in-water bath and stabilization bath is controlled to be from 0.5 to 50 times of the amount of the processing solution which is brought into the rinsing-in-water bath and stabilization bath from the desilvering bath together with the material which is being processed.Type: GrantFiled: March 17, 1988Date of Patent: May 16, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Genichi Furusawa, Takeshi Hirose
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Patent number: 4812389Abstract: A process for processing a DIR coupler-containing silver halide color photographic material for photographing use in a continuous manner with replenishment of a developer is disclosed in which said DIR coupler is a coupler which has in a coupling site a group that functions as a development inhibitor or a development inhibitor precursor upon being eliminated from the coupling active site by color development processing and that will be decomposed to a compound exerting substantially no influences on photographic properties after flowing into a color developing solution, said development inhibitor having a half-value period of 4 hours or shorter than that at a pH of 10.0, and in which the developing solution is replenished in an amount of 700 ml or less per m.sup.2 of developed light-sensitive materials.Type: GrantFiled: September 25, 1986Date of Patent: March 14, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Kei Sakanoue, Seiji Ichijima, Shinzo Kishimoto
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Patent number: 4791048Abstract: A color image is formed by subjecting a silver halide photosensitive material comprising at least a photosensitive silver halide, a two equivalent coupler, a binder, and a substantially water-insoluble basic metal compound on a support, to development with a processing solution comprising a complexing compound capable of complexing reaction with the metal in ionic form of said substantially water-insoluble basic metal compound in the presence of water to release a base.Type: GrantFiled: February 19, 1987Date of Patent: December 13, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Hirai, Yoshiharu Yabuki, Haruhiko Iwano
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Patent number: 4789626Abstract: 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: GrantFiled: December 12, 1986Date of Patent: December 6, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Kei Sakanoue, Shinzo Kishimoto, Tadashi Ikeda
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Patent number: 4774166Abstract: A method for the formation of a color image is described, wherein a silver halide color photographic material comprising a photographic layer provided on a reflective support is imagewise exposed and then subjected to development for a period of time within 2 minutes and 30 seconds with a color developer which contains an aromatic primary amine developing agent but does not substantially contain benzyl alcohol, wherein said photographic layer contains at lesat one specific non-coloring coloration accelerator selected from the group consisting of compounds represented by formulae (I) through (VII) defined in the specification.Type: GrantFiled: January 28, 1987Date of Patent: September 27, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Minoru Sasaki, Tadahisa Sato, Nobuo Furutachi, Takeshi Hirose
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Patent number: 4769313Abstract: A method of forming an image comprising, after color developmenmt of an exposed silver halide color photographic material, processing the developed silver halide color photographic material with a bath having a bleaching ability and subsequently with a bath having a bleach-fixing ability, wherein the silver halide color photographic material comprises a support having coated thereon at least one silver halide emulsion layer and at least one pyrazoloazole type magenta coupler represented by the following general formula (A): ##STR1## wherein R.sub.22 represents a hydrogen atom of a substituent; X represents a group capable of being split off 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: GrantFiled: November 21, 1986Date of Patent: September 6, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Fujimoto, Shinzo Kishimoto, Akira Abe, Junya Nakajima
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Patent number: 4766057Abstract: A method of forming a color image which comprises processing, after imagewise exposure, with a color developing solution which contains not more than 0.Type: GrantFiled: September 4, 1987Date of Patent: August 23, 1988Assignee: Fuji Photo Film Co., Ltd.Inventor: Nobuo Sakai
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Patent number: 4738917Abstract: A method for processing a silver halide photographic material by processing a silver halide color photographic light-sensitive material containing at least a silver halide emulsion layer comprising a silver halide grain essentially consisting of silver chlorobromide and a binder having a swelling rate of T 1/2 of 2 sec. to 30 sec. The color developer contains a n-hydroxyalkyl-p-phenylenediamine derivative at a temperature not less than 30.degree. C. for a time not more than 150 sec. The time and temperature are effective to process the silver halide color photographic light-sensitive material without decreasing the stability of the resulting dye image.Type: GrantFiled: May 15, 1986Date of Patent: April 19, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Satoru Kuse, Kazuhiro Kobayashi, Masao Ishikawa, Masayuki Kurematsu
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Patent number: 4500630Abstract: A silver halide photosensitive material is developed with a developing solution containing an aromatic primary amine in the presence of a coupler represented by the following general formula (I): ##STR1## wherein R.sub.1, R.sub.2 and R.sub.3 each represents a hydrogen atom or a certain substituent group, and X represents a hydrogen atom or a coupling eliminable group; to provide magenta color image having high color purity.Type: GrantFiled: February 15, 1984Date of Patent: February 19, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadahisa Sato, Toshio Kawagishi, Nobuo Furutachi
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Patent number: 4338393Abstract: Photographic magenta dye-forming couplers have the general formula: ##STR1## wherein: A represents the atoms necessary to complete, with the nitrogen atom to which it is attached, a magenta dye-forming coupler moiety whose coupling position is inactivated by the --CHR.sup.1 R.sup.2 group;CHR.sup.1 R.sup.2 is a blocking group which, upon reaction with oxidized color developing agent, is detached from the coupler moiety to yield a mobile reaction product;R.sup.1 is alkyl--O--CO--, alkyl--CO--, aryl--O--CO--, aryl--CO--, --COOH, --NO.sub.2 or --CN andR.sup.2 is a group specified for R.sup.1 or aryl--NHCO--.These couplers can be incorporated in photographic elements, emulsions and processing compositions.Type: GrantFiled: February 4, 1981Date of Patent: July 6, 1982Assignee: Eastman Kodak CompanyInventors: Joseph Bailey, John Cook
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Patent number: 4314023Abstract: A photographic yellow coupler having a general formula selected from the group consisting of (I), (II) and (III) ##STR1## wherein A is a yellow coupler residue defined by removing one hydrogen atom of a active methylene group from a yellow coupler having the active methylene group; Q is a group having a formula selected from the group consisting of ##STR2## and ##STR3## (where X and Y are individually a hydrogen atom or an alkyl, acyl, aryl or aralkyl group; Z is a hydrogen atom or an alkyl, aryl or aralkyl group; and R.sub.1 and R.sub.2 are individually a hydrogen atom or an alkyl, aryl or aralkyl group or both of R.sub.1 and R.sub.2 together may form a benzylidene group or a cycloalkyl group); and Q' is a group of the formula --CH.sub.2 --CH.sub.2 -- or ##STR4## (wherein R.sub.3 is a hydrogen or halogen atom or an alkoxy group; R.sub.4 is a hydrogen or halogen atom, an amino, acylamino, ureido, lower alkyl, alkoxy or hydroxy group; and R.sub.4 and R.sub.5 are individually a lower alkyl group).Type: GrantFiled: November 24, 1980Date of Patent: February 2, 1982Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Tamotsu Kojima, Hiroyuki Imamura, Mitsuto Fujiwhara, Wataru Fujimatsu, Takaya Endo
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Patent number: 4310619Abstract: A color photographic material and a method of forming a color photographic image which utilizes a 5-pyrazolone magenta coupler shown by the following general formula (I): ##STR1## wherein R represents an acylamino group, an anilino group or a ureido group; R.sub.1, R.sub.2 and R.sub.3, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group, an alkenyl group, a cycloalkyl group, an aralkyl group, an alkoxy group, an aryloxy group, a carboxy group, an aryl group or a heterocyclic group (which groups may be substituted) and R.sub. and R.sub.2 may combine to form a 2-indazolyl group, provided that R.sub.1, R.sub.2 and R.sub.3 are not hydrogen atoms at the same time; and Ar represents a phenyl group which may be substituted with one or more halogen atoms, alkyl groups, alkoxy groups or cyano groups.Type: GrantFiled: March 3, 1980Date of Patent: January 12, 1982Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Ichijima, Yoshiharu Yabuki, Toshiyuki Watanabe, Nobuo Furutachi
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Patent number: 4304845Abstract: The present invention relates to a process for forming a yellow color image which requires contacting exposed silver halide grain with a developer in the presence of a particular yellow coupler.Type: GrantFiled: June 20, 1980Date of Patent: December 8, 1981Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Wataru Fujimatsu, Shui Sato, Tamotsu Kojima, Shigemasa Itoh, Takaya Endo
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Patent number: 4237217Abstract: A two-equivalent magenta coupler in which the coupling position is substituted with a sulfonamido group, and capable of forming a magenta color image on coupling with an oxidation product of an aromatic primary amine developing agent, and a silver halide color photographic light-sensitive material having at least one silver halide emulsion layer on a support and containing the two-equivalent magenta coupler.Type: GrantFiled: November 17, 1977Date of Patent: December 2, 1980Assignee: Fuji Photo Film Co., Ltd.Inventors: Atsuaki Arai, Keisuke Shiba, Minoru Yamada, Nobuo Furutachi, Kotaro Nakamura