Substituted At Coupling Position With Other Than Hydrogen Patents (Class 430/555)
  • Patent number: 4942116
    Abstract: Improved 2-equivalent magneta couplers correspond to the following formula ##STR1## in which B is a stabilizing group,X is a phenylmercapto group substituted in a certain way,Y is halogen, alkoxy, alkyl, alkylsulfonyl, acylamino, alkoxycarbonyl, aminocarbonyl, amino, trifluoromethyl or cyano,n, o=0, 1 or 2p=.ltoreq.3-o andq=.ltoreq.5-nwith the proviso that, where n, o, p and/or q have a value of >1, the substitutents B and Y may be the same or different.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: July 17, 1990
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventor: Gunter Renner
  • Patent number: 4937179
    Abstract: A silver halide color photographic material comprising a support having thereon a silver halide emulsion layer, wherein the silver halide color photographic material contains a two-equivalent magenta polymer coupler which is capable of forming a color image upon coupling with an oxidation product of an aromatic primary amine developing agent and has an oil pKa' of 8.0 or more.The two-equivalent magenta polymer coupler has an excellent color forming property, an improved conversion efficiency to a dye and an improved resistivity to decreases in color forming property upon the attack of chemical substances and is free from the formation of undesirable fog when preserved under conditions of high temperature or of high temperature and high humidity.The silver halide color photographic material has a reduced layer thickness and an improved sharpness.
    Type: Grant
    Filed: May 27, 1986
    Date of Patent: June 26, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tsumoru Hirano, Kei Sakanoue
  • Patent number: 4935321
    Abstract: This invention relates to a color photographic silver halide recording material containing a dye image-forming coupler compound and a carbonamide compound which is capable of altering the spectral absorption properties of a dye formed by reaction of the coupler compound with oxidized developing agent.
    Type: Grant
    Filed: November 14, 1989
    Date of Patent: June 19, 1990
    Assignee: Eastman Kodak Company
    Inventor: Paul B. Merkel
  • 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: 4914013
    Abstract: A silver halide color photographic light-sensitive material is disclosed, which contains a magenta coupler having a specific ballast group. The light-sensitive material is improved in solubility in an organic solvent, dispersibility and stability of dispersion in a silver halide emulsion. The coupler is represented by the following Formula M-1; ##STR1## wherein R.sup.2 and R.sup.3 are each a substituent provided that and at least one of which has a group represented by the following Formula I; and X is a hydrogen atom or a group capable of being split off upon reaction with the oxidation produce of a color developing agent; ##STR2## wherein R.sup.1 is a hydrogen atom or a normal or branched alkyl group having 1 to 20 carbon atoms.
    Type: Grant
    Filed: March 2, 1989
    Date of Patent: April 3, 1990
    Assignee: Konica Corporation
    Inventors: Satoru Ikesu, Noboru Mizukura
  • Patent number: 4912024
    Abstract: Photographic elements are disclosed having a first coupler represented by the formula:COUP.sub.1 --T--INH--CH.sub.2 --QwhereinCOUP.sub.1 is a coupler moiety,T is a timing group that is bonded to the coupler moiety at a coupling position and that is cleaved from --INH--CH.sub.2 --Q after it is released from the coupler moiety upon exposure and processing of the element, andINH--CH.sub.2 --Q is a development inhibitor moiety wherein Q is a ballasting group, anda second coupler represented by the formula:COUP.sub.2 --(TIME).sub.n --S--R.sub.1 --R.sub.2wherein COUP.sub.2 is a coupler moiety, TIME is a timing group, n is 0 or 1, R.sub.1 is a divalent linking group that does not include a heterocyclic ring attached directly to S, and R.sub.2 is a water solubilizing group.
    Type: Grant
    Filed: June 21, 1988
    Date of Patent: March 27, 1990
    Assignee: Eastman Kodak Company
    Inventors: Drake M. Michno, Richard P. Szajewski, Stephen P. Singer
  • Patent number: 4904579
    Abstract: A light-sensitive silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide color photographic material comprises at least one layer containing a 5-pyrazolone magenta coupler represented by general formula (I) and a non-color forming, diffusion-resistant carboxylic acid compound: ##STR1## wherein W represents an aryl group; Y represents a carbonamido group, a ureido group or an anilino group; and R represents an alkyl group, an aryl group or a heterocyclic group.The silver halide color photographic material has high sensitivity, high color forming property, good formalin resistivity and good preservability, and provides magenta color images having good stability.
    Type: Grant
    Filed: October 29, 1987
    Date of Patent: February 27, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Hidetoshi Kobayashi
  • Patent number: 4900657
    Abstract: Pyrazolone magenta dye-forming couplers are described which provide excellent formaldehyde stability and which result in dyes having good stability to light, heat and moisture and which have higher .beta.max values as compared with dyes obtained from prior described pyrazolone couplers.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: February 13, 1990
    Assignee: Eastman Kodak Company
    Inventors: Michael W. Crawley, Paul Louis R. Stanley
  • Patent number: 4894318
    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 an uncolored magenta coupler and at least one compound capable of reacting with and fixing formaldehyde vapor, and at least 30 mol % based on the total amount of the uncolored magenta coupler present in the silver halide color photographic material is an uncolored 5-pyrazolone 2-equivalent magenta coupler.The silver halide color photographic material has good latent image stability and a reduced layer thickness and thus improved sharpness. It is further possible thereby to avoid a decrease in color density and the formation of fog normally present when the silver halide color photographic material is brought into contact with formaldehyde vapor during storage prior to color development processing.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: January 16, 1990
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Jun Arakawa, Keiji Mihayashi
  • Patent number: 4876182
    Abstract: A photographic element is described which contains a pyrazolone color coupler compound which provides a dye having improved fastness to light and improved resistance to yellowing when compared with prior known coupler compounds.
    Type: Grant
    Filed: May 30, 1989
    Date of Patent: October 24, 1989
    Assignee: Eastman Kodak COmpany
    Inventor: Paul R. Buckland
  • Patent number: 4874689
    Abstract: A silver halide color photographic material containing new dye image-forming couplers consisting of polymer couplers obtained by a polymerization reaction which employs a chain transfer agent having 8 or more carbon atoms. The silver halide color photographic material exhibits a high sensitivity and a high color-forming property.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: October 17, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichi Yamanouchi, Shigetoshi Ono, Tsumoru Hirano, Toshiyuki Watanabe, Nobuo Sakai, Keiji Mihayashi
  • Patent number: 4871657
    Abstract: A color photographic recording material having at least one silver halide emulsion layer contains at least one coupler corresponding to the general formula I ##STR1## wherein K represents a coupler group,L a direct bond of a linking member,R.sup.1 alkyl, aralkyl, aryl or amino andR.sup.2 hydrogen or a group -L-K.The couplers of formula I are suitable for high temperature processing without the presence of benzyl alcohol.
    Type: Grant
    Filed: February 28, 1989
    Date of Patent: October 3, 1989
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventor: Erich Wolff
  • Patent number: 4868101
    Abstract: A silver halide color photographic material, wherein a dye stabilizer as described in the claims is contained in a photographic layer such as a coupler-containing silver halide photosensitive emulsion layer. The dye images obtained eventually by developing the photographic material is excellent in preventing it from fading or discoloring.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: September 19, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masakazu Morigaki, Nobuo Seto
  • Patent number: 4863841
    Abstract: A silver halide color photographic material comprising a support having thereon at least one photosensitive silver halide emulsion layer, wherein a 5-pyrazolone type 2-equivalent coupler is present in the photosensitive silver halide emulsion layer or a layer adjacent thereto and a hardening agent which acts by activating a carboxy group is present in a photosensitive or non-photosensitive photographic layer of the silver halide color photographic material.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: September 5, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Okamura, Hidetoshi Kobayashi, Toshihiro Nishikawa, Koji Tamoto
  • Patent number: 4861701
    Abstract: Photographic compounds capable of releasing a photographically useful group are more effective in photographic materials when the photographic compounds comprise at least two differing timing groups in sequence between a carrier moiety and the photographically useful group. The two timing groups in sequence enable improved timing and control of release of the photographically useful group.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: August 29, 1989
    Assignee: Eastman Kodak Company
    Inventors: Paul A. Burns, Terry R. Taber
  • Patent number: 4857446
    Abstract: Dyes having structure ##STR1## A represents a substituted or unsubstituted nucleus having a carboxyphenyl or sulfonamidophenyl substituent selected from the group consisting of 2-pryazolin-5-ones free of any substituent bonded thereto through a carboxyl group, rhodanines, hydantoins, 2-thiohydantoins, 4-thiohydantoins, 2,4-oxazolidindiones, 2-thio-2,4-oxazolidindiones, isoxazolinones, barbiturics, 2-thiobarbiturics, and indandiones,R represent hydrogen, substituted or unsubstituted alkyl of 1 to 4 carbon atoms, or benzyl,R.sup.1 and R.sup.2 each independently represents substituted or unsubstituted alkyl or aryl, or taken together with R.sup.5, R.sup.6, N and the carbon atoms to which they are attached, represent the atoms needed to complete a julolydyl ring,R.sup.3 represents H, or substituted or unsubstituted alkyl or aryl,R.sup.5 and R.sup.6 each independently represents H, or R.sup.5 taken together with R.sup.1, or R.sup.6 taken together with R.sup.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: August 15, 1989
    Assignee: Eastman Kodak Company
    Inventors: Donald R. Diehl, Ronda E. Factor
  • Patent number: 4855220
    Abstract: A photographic element is disclosed that comprises a support having thereon spectrally-sensitized light-sensitive silver halide, a color dye-forming coupler, a DIR compound capable of inhibiting development of the silver halide, and, between the silver halide layer and the source of the image exposure, a layer comprising a non-diffusible filter dye that absorbs light in the region of the spectrum to which the silver halide is sensitized.
    Type: Grant
    Filed: January 14, 1988
    Date of Patent: August 8, 1989
    Assignee: Eastman Kodak Company
    Inventor: Richard P. Szajewski
  • 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: 4849325
    Abstract: A light-sensitive material package unit having an exposure function is disclosed, in which said light-sensitive material comprises a support having provided thereon at least one red-sensitive silver halide emulsion layer containing at least one 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; at least one of said light-sensitive emulsion layers is composed of at least two layers being substantially the same in color sensitivity and different in sensitivity; and said light-sensitive emulsion layer composed of at least two layers contains a compound represented by formula (I)A--L.sub.1).sub.b Z.sub.1 (I)wherein A represents a component capable of releasing --(L.sub.1).sub.b Z.sub.1 upon reacting with an oxidation product of a color developing agent; L.sub.1 represents a timing group; Z.sub.
    Type: Grant
    Filed: June 30, 1987
    Date of Patent: July 18, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Noboru Sasaki, Keisuke Shiba
  • Patent number: 4847185
    Abstract: Photographic compounds capable of releasing a photographically useful group (PUG) by means of an intramolecular nucleophilic displacement provide increased image acutance when a coupling-off group in the coupling position of the compound is a group of the formula: ##STR1## wherein PUG is a photographically useful group; Q is N or C--R where R is hydrogen or a substituent that does not adversely affect imaging; and Z represents atoms completing a non-aromatic, heterocyclic ring. The photographic compounds are useful in photographic materials and processes.
    Type: Grant
    Filed: June 30, 1988
    Date of Patent: July 11, 1989
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Michael J. Carmody, John M. Buchanan
  • Patent number: 4847188
    Abstract: A thermally developable light-sensitive material having at least a light-sensitive silver halide, a reducing agent, a binder and a dye-providing material on a support is disclosed. The dye-providing material is a compound that releases or forms a diffusible dye as a function of development and which has a group capable of reacting with the nucleophilic agent.
    Type: Grant
    Filed: February 1, 1988
    Date of Patent: July 11, 1989
    Assignee: Konica Corporation
    Inventors: Tawara Komamura, Hidenobu Ohya
  • 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: 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: 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: 4840886
    Abstract: A silver halide color photographic material having at least one silver halide emulsion layer on a support is disclosed. Said silver halide emulsion layer contains at least one of the 1H-pyrazolo [3,2-c]-S-triazole derived magenta couplers that have a substituent of the following formula at 3-position:--R.sub.1 --S(O).sub.n --R.sub.2whereinR.sub.1 is an alkylene group;R.sub.2 is an alkyl, cycloalkyl or aryl group; andn is 1 or 2.
    Type: Grant
    Filed: February 26, 1988
    Date of Patent: June 20, 1989
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Toshifumi Iijima, Kenji Kumashiro, Hiroshi Kashiwagi, Koichi Hatta, Yuji Hotta, Hiroko Ohya, Noritaka Nakayama, Satoshi Kawakatsu, Katsunori Katoh, Kaoru Shinozaki
  • Patent number: 4822730
    Abstract: A silver halide color photographic material comprising a support having formed thereon at least one silver halide emulsion layer containing a pyrazoloazole series magenta coupler having at least one group expressed by the formula [S] below at a position other than the coupling active position.--(A).sub.n --L--B [S]wherein A represents a substituted or unsubstituted alkylene group, a substituted or unsubstituted cycloalkylene group, a substituted or unsubstituted arylene group, or a substituted or unsubstituted aralkylene group, in which in the main chain of said alkylene group, cycloalkylene group, arylene group, or aralkylene group, --O--, --S--, --CO--, --CO.sub.2 --, --OCO--, ##STR1## may be contained; L represents ##STR2## B represents a hydrogen atom or a substituted or unsubstituted alkyl or aryl group which does not contain therein --SO.sub.2 --; n is 0 or 1; and R and R' each represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group.
    Type: Grant
    Filed: May 28, 1987
    Date of Patent: April 18, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Furutachi, Toshio Kawagishi, Kiyoshi Nakazyo
  • Patent number: 4820623
    Abstract: A method for processing a silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer and containing a magenta dye forming coupler represented by formula (I) shown below and a compound represented by formula (II) shown below in the same layer is described, wherein the silver halide color photographic material is subjected to color development using a replenisher for a color developing solution, whose concentration of bromide is not more than 3.times.10.sup.-3 mol per liter and the amount of the replenisher for a color developing solution is not more than 900 ml per m.sup.2 of the silver halide color photographic material, wherein ##STR1## wherein R.sub.1 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.; and formula (II) is represented by(R'--COO.sup.
    Type: Grant
    Filed: February 3, 1988
    Date of Patent: April 11, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshio Koshimizu, Keiji Mihayashi
  • Patent number: 4818673
    Abstract: A method for processing a silver halide color photographic material is disclosed, which comprises processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer comprising silver chloride or silver chlorobromide containing at least 80 mol % of silver chloride with a color developing solution and thereafter processing the material with a bleach-fixing solution, wherein the bleach-fixing solution contains a ferric complex salt of an organic acid and from about 1.times.10.sup.-2 to about 2 mol of bromide ions and/or from about 5.times.10.sup.-4 to about 5.times.10.sup.-2 mol of iodide ions per liter.The method for processing a silver halide color photographic material according to the present invention is excellent in desilvering ability, and enables rapid processing to be conducted.
    Type: Grant
    Filed: August 5, 1987
    Date of Patent: April 4, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinji Ueda, Kazunori Hasebe, Junya Nakajima
  • Patent number: 4818664
    Abstract: A process for processing a silver halide color photographic material which comprises processing, after color development, a silver halide color photographic material with a processing solution having a bleaching faculty using an aminopolycarboxylic acid ferric complex salt as an oxidizing agent, said color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one compound releasing by the reaction with an oxidation product of a developing agent a group releasing or forming development inhibitor by the reaction with another molecule of an oxidation product of a developing agent.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: April 4, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinji Ueda, Keiji Mihayashi, Seiji Ichijima
  • Patent number: 4808502
    Abstract: This invention relates to a color photographic silver halide recording material containing a dye image-forming coupler compound and a compound which is capable of altering the spectral absorption properties of a dye formed by reaction of the coupler compound with oxidized developing agent.
    Type: Grant
    Filed: July 25, 1988
    Date of Patent: February 28, 1989
    Assignee: Eastman Kodak Company
    Inventor: Paul B. Merkel
  • Patent number: 4806459
    Abstract: A color photographic material comprising a support having provided thereon a blue-sensitive silver halide emulsion layer containing at least one coupler capable of reacting with an oxidation product of an aromatic primary amine developing agent to form a yellow dye, at least one coupler capable of reacting with said oxidation product to form a cyan dye and not to produce a diffusible development inhibitor or a precursor thereof, and at least one compound capable of reacting with said oxidation product to produce a diffusible development inhibitor or a precursor thereof.
    Type: Grant
    Filed: May 6, 1987
    Date of Patent: February 21, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsumi Makino, Noboru Sasaki, Koji Takahashi
  • 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: 4803150
    Abstract: A double coated radiographic element is disclosed comprised of a dye coated between an emulsion layer and a support to reduce crossover to less than 10 percent. The dye is present in the form of microcrystalline particles, yet is capable of being decolorized in less than 90 seconds during processing.
    Type: Grant
    Filed: July 13, 1987
    Date of Patent: February 7, 1989
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, James E. Kelly, Donald R. Diehl, Ronda E. Factor
  • Patent number: 4803152
    Abstract: A photogrphic light-sensitive material comparing a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion layer comprises a silver chlorobromide emulsion which is substantially free of iodide and has a chloride content which satisfies the following relationship (I) between a mean mole % of silver chloride in grain group (A), in which the grains have sizes not less than the median size in the grain size distribution, and a mean mole % of silver chloride in grain group (B) in which the grains have sizes less than the median size, whereby excellent gradation and wide exposure latitude are achieved, and there is a small dependence on the development conditions.Relationship (I): 1.ltoreq.[Mean mol % of silver chloride in grain group (A)]-[Mean mol % of silver chloride in grain group (B)].ltoreq.99.
    Type: Grant
    Filed: June 5, 1987
    Date of Patent: February 7, 1989
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhito Momoki, Kazunori Hasebe
  • Patent number: 4791049
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide photographic material contains at least one compound represented by the following general formula (I):A--Time).sub.t X (I)wherein A represents an oxidation reduction moiety comprising an atomic group which does not enable --Time).sub.t X to be released until the oxidation reduction moiety is oxidized during photographic development processing; Time represents a timing group which is connected to A through a sulfur atom, a nitrogen atom or an oxygen atom; t represents an integer of 0 or 1; and X represents a group represented by the following general formula (II): ##STR1## wherein R represents a straight chain or branched chain alkylene group, a straight chain or branched chain alkenylene group, a straight chain or branched chain aralkylene group or an arylene group; Z represents a polar substituent; Y represents ##STR2## R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.
    Type: Grant
    Filed: April 23, 1987
    Date of Patent: December 13, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Shigeo Hirano, Hideo Usui
  • Patent number: 4791051
    Abstract: A silver halide color photographic material is disclosed, comprising a support and at least silver halide emulsion layers on the support, wherein at least one of said emulsion layers contains at least one 2-equivalent 5-pyrazolone polymer coupler and at least one of the other emulsion layers contains at least one phenol cyan coupler having an acylamino group in the 5-position and a ureido group in the 2-position. The present material is advantageous over conventional materials in that the color balance of the image dyes remains unchanged over long periods of time.
    Type: Grant
    Filed: May 13, 1986
    Date of Patent: December 13, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kei Sakanoue, Tsumoru Hirano
  • Patent number: 4791050
    Abstract: A silver halide color photographic material is described, which comprises a support having provided therein at least a blue-sensitive emulsion layer, a green-sensitive emulsion layer and a red-sensitive emulsion layer, with the blue-sensitive emulsion layer comprising at least two layers differing in sensitivity, one of which is the highest sensitive emulsion layer containing at least one yellow-dye-forming coupler represented by the general formula (I), and the other of which is the lowest sensitive emulsion layer containing at least one yellow-dye-forming coupler represented by the general formula (II), whereby a yellow dye image having high maximum density and excellent in sharpness, graininess and light fastness can be produced: ##STR1##
    Type: Grant
    Filed: May 7, 1987
    Date of Patent: December 13, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akira Ogawa, Hiroshi Fukuzawa
  • Patent number: 4783398
    Abstract: A photographic silver halide emulsion is disclosed, comprising high silver chloride content tabular grains wherein at least 50 mol % of the silver halide is silver chloride and at least 50%, based on the total projected area of emulsion grains, are tabular grains having a ratio of diameter corresponding to a circle of the projected area to thickness of from 2/1 to 10/1.
    Type: Grant
    Filed: June 22, 1987
    Date of Patent: November 8, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shunji Takada, Hiroyuki Mifune, Tadashi Ikeda
  • Patent number: 4777120
    Abstract: A photographic masking coupler containing in the coupling position a coupling-off group that is capable of reacting with oxidized color developing agent to form a water-insoluble dye in non-image areas and a water-soluble compound in image areas of a color photographic element enables formation of a colored integral mask for color correction upon exposure and processing of the element. The masking couplers are essentially colorless in a color photographic element. Such a photographic masking coupler is advantageous in a color photographic element and process.
    Type: Grant
    Filed: May 18, 1987
    Date of Patent: October 11, 1988
    Assignee: Eastman Kodak Company
    Inventor: Philip T. S. Lau
  • Patent number: 4774181
    Abstract: An imaging element is described which comprises a dye image-forming coupler compound and a compound capable of releasing a fluorescent dye as a function of silver halide development. The released dye is capable of fluorescence which optically compensates for unwanted absorption of an image dye thereby resulting in color correction of the image.
    Type: Grant
    Filed: June 25, 1987
    Date of Patent: September 27, 1988
    Assignee: Eastman Kodak Company
    Inventors: Nair N. Ravindran, Ramanuj Goswami
  • Patent number: 4770985
    Abstract: A silver halide photographic material is disclosed which has formed on a support in sequence a silver halide emulsion layer incorporating a yellow coupler of the formula (I), a silver halide emulsion layer incorporating a magenta coupler of the formula (II), and a silver halide emulsion layer incorporating a cyan coupler of the formula (III): ##STR1## wherein R.sub.1 is a hydrogen atom, a halogen atom or an alkoxy group; R.sub.2 is --NHCOR.sub.3, --NHSO.sub.2 R.sub.3, --COOR.sub.3 or ##STR2## provided that R.sub.3 and R.sub.4 are each an alkyl group; and Z.sub.1 is a non-metallic atomic group necessary to form a 5- or 6-membered hetero ring together with a nitrogen atom); ##STR3## [wherein R.sub.5 is a hydrogen atom, a halogen atom or an alkoxy group having 1 to 4 carbon atoms; R.sub.6 is (provided that R.sub.7 and R.sub.8 are each a hydrogen atom or an acyl group, and when R.sub.7 and R.sub.
    Type: Grant
    Filed: October 26, 1987
    Date of Patent: September 13, 1988
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Shun Takada, Takashi Kadowaki, Masao Sasaki, Toyoki Nishijima, Kaoru Onodera
  • Patent number: 4770982
    Abstract: A silver halide photographic material is disclosed which contains a compound represented by formula (I)RED--L.sub.1).sub.v B--L.sub.2).sub.w PUG (I)wherein RED represents a group adapted to release the group (L.sub.1).sub.v B--L.sub.2).sub.w PUG upon oxidation: L.sub.1 represents a group adapted to release the group B--L.sub.2).sub.w PUG after cleavage from RED; B represents a group which, after cleavage of the bond with L.sub.1 or RED, releases the group (L.sub.2).sub.w PUG upon reaction with an oxidized developing agent; L.sub.2 represents a group which, after cleavage from B, releases PUG; PUG represents a photographically useful group; and v and w each represents 0 or 1.
    Type: Grant
    Filed: June 4, 1986
    Date of Patent: September 13, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Ichijima, Shigeo Hirano, Koki Nakamura, Keiji Mihayashi
  • Patent number: 4770989
    Abstract: A heat-developable color photosensitive element having a support bearing thereon at least one photographic component layer containing a photosensitive silver halide, an organic silver salt, a reducing agent, a dye donor substance and a binder. The photosensitive element is characterized by the photographic component layer which contains a thermal solvent and a binder which contains both a gelatin and a vinyl pyrrolidone polymer.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: September 13, 1988
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Tawara Komamura, Masaru Iwagaki, Takashi Sasaki, Fumio Ishii, Kunihiro Koshizuka
  • Patent number: 4764454
    Abstract: A novel silver halide color photographic material is provided comprising a compound of the general formula (I):LIG-A-LVG (I)wherein A represents a group which reacts with an oxidation product of a developing agent to cleave the bond to LVG; LVG represents a coupling-off group; and LIG represents a group which reacts with metal ions to form a complex compound.A novel method of processing the instant silver halide color photographic material is provided including a processing step using a processing solution of an iron (II) ion concentration of 1.times.10.sup.-6 to 1 mol/l. In the processing step, the potential of a bath having a bleaching capacity containing an aminopolycarboxylic acid-iron (III) complex salt is 150 mV or less.
    Type: Grant
    Filed: December 18, 1986
    Date of Patent: August 16, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Ichijima, Kei Sakanoue
  • Patent number: 4761365
    Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support base having coated thereon a photographic layer containing a magenta dye represented by formula (I) ##STR1## wherein X represents ##STR2## wherein R.sub.1 represents a hydrogen atom or an alkyl group; Y and Z each represents a substituted or nonsubstituted alkyl group, a substituted or nonsubstituted aryl group, a substituted or nonsubstituted aralkyl group, wherein the substituent of the substituted alkyl group, aryl group or aralkyl group is not a sulfo group or a carboxyl group and the total of carbon atoms in Y and Z is 15 or more; and M represents a hydrogen atom or a cation.
    Type: Grant
    Filed: June 21, 1985
    Date of Patent: August 2, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mitsugu Tanaka, Minoru Sakai
  • Patent number: 4755452
    Abstract: The stability to light of images produced from magenta couplers is improved by a combination of a hydroquinone and an indole.
    Type: Grant
    Filed: January 20, 1987
    Date of Patent: July 5, 1988
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventors: Werner Liebe, Hans Vetter
  • Patent number: 4749644
    Abstract: In a light-sensitive direct posi silver halide color photographic material having photographic constituent layers comprising at least one silver halide emulsion layer containing latent image type silver halide grains not previously fogged, which is capable of giving a direct posi image by subjecting the whole surface to exposure or effecting surface development in the presence of a fogging agent, after image exposure, the improvement wherein said internal latent image type silver halide grains are composed of at least two groups of internal latent image type silver halide grains having average grain sizes different from each other, and at least one compound capable of releasing a development inhibiting substance or its precursor through the reaction with the oxidized product of a color developing agent is contained in at least one layer of said photographic constituent layers.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: June 7, 1988
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Yasuo Tosaka, Keiji Ogi, Atsushi Kamitakahara
  • Patent number: 4749641
    Abstract: An imaging element is described which comprises a colorless coupler compound which contains an oxidizable lueco dye moiety and optionally a colorless dye image-forming coupler compound. Following color development a masking dye is obtained by oxidation of the leuco dye moiety in areas where no photographic development occurs.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: June 7, 1988
    Assignee: Eastman Kodak Company
    Inventors: John E. Kaufman, Max H. Stern
  • Patent number: 4748100
    Abstract: A silver halide color photographic light-sensitive material comprising a support having formed thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one blue-sensitive emulsion layer is disclosed. The material cotains a novel combination of cyan, magenta, and yellow couplers and has improved color forming properties, color reproducibility, and image preservability.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: May 31, 1988
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Umemoto, Kozo Aoki
  • Patent number: H782
    Abstract: A silver halide color photographic material in disclosed which comprises a support having thereon at least one silver halide emulsion layer, wherein the photographic material contains at least one compound represented by general formula (I) and at least one compound represented by general formula (II) in combination:Cp--(TIME).sub.n --X--Dye (I)wherein Cp represents a coupler residue capable of releasing --(TIME).sub.n --X--Dye upon coupling with an oxidation product of an aromatic primary amine developing agent; TIME represents a timing group; n represents 0 or a positive integer; Dye represents a dye residue, and X represents an auxochromic group of said dye; ##STR1## wherein R represents a hydrogen atom or a substituent; Y represents a hydrogen atom or a coupling-off group; Za, Zb and Zc each represents a methine group, a substituted methine group, .dbd.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: May 1, 1990
    Inventors: Mitsunori Ono, Koji Tamoto, Yoshisada Nakamura, Shingo Sato