Development Inhibitor Releaser (dir) Patents (Class 430/957)
  • Patent number: 5378593
    Abstract: Color photographic materials comprise a substrate bearing a silver halide emulsion and a coupler composition comprising (a) a 2-phenylcarbamoyl-1-naphthol compound selected from the group consisting of development inhibitor releasing couplers and timed development inhibiting releasing couplers, and (b) a carbonamide coupler solvent. The carbonamide coupler solvent is employed to reduce dye density changes and/or dye hue changes resulting from cold storage of the photographic materials.
    Type: Grant
    Filed: May 22, 1992
    Date of Patent: January 3, 1995
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Melvin M. Kestner, Paul L. Zengerle
  • Patent number: 5378590
    Abstract: A color reversal photographic element comprises a support bearing a red-sensitive, cyan dye-forming unit, a green-sensitive, magenta dye-forming unit, and a blue-sensitive, yellow dye-forming unit, each unit comprising a photosensitive silver halide layer and an image-dye forming coupler; the element contains an interimage effect-controlling means which is characterized as having the capability of simultaneously forming a red image of high relative chroma and a yellow-red tint image of substantially lower relative chroma when the element is exposed to a red color standard object having CIELab values for D.sub.55 reference white a*=30.46, b*=19.16, C*=35.98, L*=40.12 and a yellow-red tint color standard object having CIELab values for D.sub.55 reference white a*=17.26, b*=18.01, C*=24.95, L*=66.98; the resulting images have a red reproduction coefficient equal to or greater than 0.88 and a ratio of red reproduction coefficient to yellow-red tint reproduction coefficient equal to or greater than 1.15.
    Type: Grant
    Filed: January 15, 1993
    Date of Patent: January 3, 1995
    Assignee: Eastman Kodak Company
    Inventors: Frederick E. Ford, Arlyce T. Bowne, Carl Kotlarchik, Jr.
  • Patent number: 5376515
    Abstract: A silver halide color photographic light-sensitive material has, on a support, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, and at least two red-sensitive silver emulsion layers containing a cyan coupler and having different sensitivities. The highest sensitivity layer of the red-sensitive silver halide emulsion layers contains a yellow coupler, and a red-sensitive emulsion layer having a lower sensitivity contains a yellow-colored cyan coupler.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: December 27, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yuji Kume
  • Patent number: 5376519
    Abstract: A color photographic material and process provide a two-equivalent 3-anilino pyrazolone magenta dye-forming coupler, a phenolic coupler solvent and at least one amine compound.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: December 27, 1994
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Stephen P. Singer
  • Patent number: 5372920
    Abstract: A multilayered color photographic element contains a support having coated thereon photographic silver halide emulsion layers including at least one blue-sensitive and at least three red-sensitive silver halide emulsion layers, said red-sensitive layers respectively being most, mid, and least red-sensitive relative to each other, said most and mid red-sensitive layers being contiguous, and the most red-sensitive layer being a coupler starved layer, which element comprises:(a) a yellow image dye-forming coupler and substantially no development inhibitor releasing coupler in the most red-sensitive layer; and(b) at least one development inhibitor releasing coupler in the mid red-sensitive layer.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: December 13, 1994
    Assignee: Eastman Kodak Company
    Inventor: Larry D. Edwards
  • Patent number: 5372919
    Abstract: A polymeric material is provided comprising a blocked photographically useful group (PUG). The incorporated blocked photographically useful group includes a PUG and a blocking group that is capable of releasing the PUG upon processing the photographic element, wherein the blocking group(a) is capable of reacting with a dinucleophile reagent, and(b) comprises two electrophilic groups that are separated from each other by a substituted atom that enables a nucleophilic displacement reaction to occur with release of PUG upon processing the photographic element in the presence of a dinucleophile reagent, wherein the group that is less electrophilic is bonded directly or through at least one releasable timing group to the PUG.Photographic elements and emulsions including the inventive polymers, and processes for developing an image in the elements, are also provided.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: December 13, 1994
    Assignee: Eastman Kodak Company
    Inventors: Ralph B. Nielsen, David T. Southby, Katherine Root, Hwei-Ling Yau
  • Patent number: 5360709
    Abstract: A silver halide color photographic material comprising on a support at least a silver halide emulsion layer, comprising a compound represented by general formula (I):A--(L).sub.r --INH--(CH.sub.2).sub.n --Q(I)wherein A represents a coupler residue excepting 1H-pyrazolo[1,5-b]-1,2,4-triazole and 1H-pyrazolo[5,1-c]-1,2,4-triazole; L represents a timing group or a group which reduces an oxidation product of a developing agent; r represents an integer of 2 to 4; n represents an integer of 0 to 3; Q represents a group having a molecular weight of 80 to 250; and INH represents a development inhibitor residue bonded to A--(L).sub.r via hetero atoms and selected from a group ##STR1## wherein * represents the position at which the group is connected to L and ** represents the position at which the group is connected to --(CH.sub.2).sub.n --Q.
    Type: Grant
    Filed: March 25, 1993
    Date of Patent: November 1, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Atsuhiro Ohkawa, Masuji Motoki, Keiji Mihayashi
  • Patent number: 5356764
    Abstract: A color photographic element having a support bearing at least one radiation sensitive emulsion layer comprising dispersing medium and silver halide grains is disclosed. The emulsion layer is a tabular grain silver halide emulsion layer Wherein at least 50 percent of total grain projected area is accounted for by tabular grains (a) bounded by {100} major faces having adjacent edge ratios of less than 10, (b) each having an aspect ratio of at least 2, and (c) internally at their nucleation site, containing iodide and at least 50 mole percent chloride. The emulsion layer has in reactive association an image dye-forming compound and a compound that contains a photographically useful group and is capable of reacting with oxidized developing agent to thereby release such group. A process for preparing the radiation sensitive tabular grain silver halide emulsions is also described.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: October 18, 1994
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Gary L. House, Thomas B. Brust, Debra L. Hartsell, Donald L. Black, Anne E. Bohan, James P. Merrill
  • Patent number: 5354650
    Abstract: Photographic elements are described which contain a release compound that during photographic processing provides an imagewise distribution of a photographically inert compound which can react with a uniform distribution of a second compound contained in the element to form a photographically active compound.
    Type: Grant
    Filed: November 5, 1993
    Date of Patent: October 11, 1994
    Assignee: Eastman Kodak Company
    Inventors: David T. Southby, Daniel L. Kapp, Wojciech Slusarek, Louis E. Friedrich, Zbyslaw R. Owczarczyk, Xiqiang Yang
  • Patent number: 5352570
    Abstract: A new method of preparation of a single isomer of a benzotriazole compound comprises the step of reacting a benzotriazole compound containing symmetrical substituents on the benzo ring with phosgene to produce the corresponding carbamyl chloride. The carbamyl chloride can be reacted with a timeing group of a coupling-off group of a photographic coupler to form a photographic development inhibitor releasing coupler. Such compounds are useful in photographic materials and processes.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: October 4, 1994
    Assignee: Eastman Kodak Company
    Inventor: William J. Begley
  • Patent number: 5350666
    Abstract: A silver halide photographic material having on a support, at least one photosensitive silver halide emulsion layer, which contains a coupler which releases at least two groups selected from the group consisting of a photographically useful group and a precursor thereof via a timing group upon undergoing a coupling reaction with an oxidized product of a developing agent, in which a plurality of photographically useful groups or precursors thereof are present on different atoms of the timing group, provided that when the plurality of photographically useful groups have a different function to each other, the timing group is not a group utilizing an intramolecular nucleophilic substitution reaction.
    Type: Grant
    Filed: June 26, 1991
    Date of Patent: September 27, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masuji Motoki, Atsuhiro Ohkawa, Keiji Mihayashi
  • Patent number: 5340695
    Abstract: Disclosed is a silver halide photograhic material which includes a support and at least one emulsion layer. The material also contains a hydrazine derivative and 8-hydroxyguinoline or a derivative thereof. The emulsion may have been subjected to selenium and/or tellurium sensitization.
    Type: Grant
    Filed: August 12, 1993
    Date of Patent: August 23, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsuo Yamaguchi
  • Patent number: 5332656
    Abstract: Silver halide color photographic light-sensitive material which comprises a support having thereon at least one silver halide emulsion layer containing a) a diacylaminomethylene yellow dye forming coupler having bonded to the coupling active position a group which provides a compound having a development inhibiting property when the group is released from the coupler active position upon the color development reaction, wherein said group is a 4,7-dihalogen-2-benzotriazolyl group and b) an alkoxybenzoyl acetanilide yellow dye forming coupler having a 3-hydantoinyl leaving group bonded to the coupling active position.
    Type: Grant
    Filed: March 22, 1993
    Date of Patent: July 26, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Massimo Bertoldi, Vinicio Busatto
  • Patent number: 5328801
    Abstract: A method for forming an image is disclosed, which comprises processing with a developer having a pH value of 9 to 12 and comprising 0.2 mol/liter or more of a sulfite an imagewise exposed silver halide photographic material comprising a compound represented by formula (I): ##STR1## wherein Het represents a group represented by formula (II) and the remaining terms are as defined in the specification: ##STR2## wherein the terms are as defined in the specification. In a preferred embodiment, the compound represented by formula (I) is a compound represented by formula (III): ##STR3## wherein the terms are as defined in the specification. The light-sensitive material may comprise a hydrazine derivative in addition to the compound represented by formula (I) or (III).
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: July 12, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shoji Yasuda, Kazunobu Katoh, Hisashi Okamura
  • Patent number: 5326680
    Abstract: A silver halide color photographic light-sensitive material having at least one light-sensitive silver halide emulsion layer formed on a support wherein the light-sensitive material contains a compound represented by the following general formula (I): ##STR1## wherein A is a coupler residual or an oxidation-reduction group, X.sub.1 is an oxygen atom or a sulfur atom, X.sub.2 is an oxygen atom, a sulfur atom or NX.sub.6 group, W is a carbon atom or a sulfur atom, X.sub.3, X.sub.4, X.sub.5 and X.sub.6 are each a hydrogen atom or an organic residual, any two of X.sub.3, X.sub.4 and X.sub.5 can be bivalent groups which form a ring, PUG is a photographically useful group capable of bonding at a hetero-atom and, in the formula (I), n.sub.1 is 1 if W is a carbon atom, and either 1 or 2 if W is a sulfur atom. If n.sub.1 is 2, two X.sub.1 can either be identical or different. On the other hand, n.sub.2 is either 1 or 2. If n.sub.2 is 2, two X.sub.3, two X.sub.4, and two x.sub.5 are either identical or different.
    Type: Grant
    Filed: May 19, 1992
    Date of Patent: July 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Atsuhiro Ohkawa, Tatsuhiko Obayashi, Keiji Mihayashi
  • Patent number: 5326683
    Abstract: A silver halide photographic material comprising a support having thereon a previously fogged silver halide emulsion layer and a light-sensitive silver halide emulsion layer comprising at least one silver halide, wherein at least one of said previously fogged silver halide emulsion layer and a hydrophilic colloid layer adjacent thereto contains at least one hydrazine nucleating agent and at least one of said light-sensitive silver halide emulsion layer and a hydrophilic colloid layer adjacent thereto contains at least one redox compound capable of releasing a development restrainer when oxidized, and wherein said nucleating agent and said redox compound are contained in different layers.
    Type: Grant
    Filed: March 30, 1993
    Date of Patent: July 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazunobu Katoh
  • Patent number: 5314797
    Abstract: There is disclosed a silver halide color photographic material comprising a photosensitive silver halide emulsion layer that contains an acylacetamide yellow dye-forming coupler whose acyl group is represented by formula (I) and a high-boiling organic solvent, wherein the weight ratio of the high-boiling solvent to the coupler contained in said layer is 0.3 or below. ##STR1## wherein R.sub.1 represents a monovalent group, Q represents a group of nonmetallic atoms required to form together with C a 3- to 5-membered hydrocarbon ring or a 3- to 5-membered heterocyclic ring that contains a hetero atom selected from the group consisting of N, O, S, and P, provided that R.sub.1 is not a hydrogen atom and it does not bond to Q to form a ring.
    Type: Grant
    Filed: August 12, 1991
    Date of Patent: May 24, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Yoshioka, Yoshio Shimura, Hidetoshi Kobayashi
  • Patent number: 5314792
    Abstract: A photographic element and process useful therewith comprises at least two light sensitive silver halide layers sensitized to green light and having differing degrees of light sensitivity, comprising in association with a higher sensitivity layer a yellow dye forming DIR coupler which releases a development inhibitor containing a weak inhibitor fragment, and further comprising in association with the lower sensitivity layer a cyan dye forming DIR coupler with a timing group containing a strong inhibitor fragment which releases a precursor of the development inhibitor fragment.
    Type: Grant
    Filed: January 29, 1993
    Date of Patent: May 24, 1994
    Assignee: Eastman Kodak Company
    Inventor: James P. Merrill
  • Patent number: 5312726
    Abstract: A silver halide color light-sensitive material including a support having thereon at least one hydrophilic colloidal layer is disclosed, wherein the hydrophilic colloidal layer contains a DIR coupler represented by formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, an aliphatic group, an aromatic group, or a heterocyclic group; R.sup.2 represents an organic group; X and Y each represent --N.dbd. or ##STR2## wherein R.sup.
    Type: Grant
    Filed: March 11, 1991
    Date of Patent: May 17, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Seiji Ichijima, Toshio Kawagishi, Naoki Saito, Masuji Motoki
  • Patent number: 5310638
    Abstract: A silver halide color photographic material comprises a support, a blue sensitive layer, a green sensitive layer and a red sensitive layer. The total silver content of the photographic material is not more than 1.0 g/m.sup.2. The photographic material further contains a compound represented by the formula (1a) or (1b): ##STR1## in which R.sup.12 is an aliphatic group, an aromatic group or a heterocyclic group; M is --CO--, --SO.sub.2 --, --N(R.sup.15)CO--, --OCO-- or --N(R.sup.15)SO.sub.2 --; each of R.sup.14, R.sup.15 and R.sup.24 independently is hydrogen, an alkyl group or an aryl group; L is a divalent linking group necessary for forming a 5, 6 or 7-membered ring; each of R.sup.11, R.sup.13 and R.sup.21 independently is hydrogen or a substituent group of the hydroquinone nucleus; Time is a group which is released from the oxidation product of the hydroquinone nucleus to further release X; X is a development inhibitor; and t is 0 or 1. M preferably is --SO.sub.2 --, --N(R.sup.15)CO--, --OCO-- or --N(R.sup.
    Type: Grant
    Filed: October 25, 1991
    Date of Patent: May 10, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Sadanobu Shuto, Takashi Ozawa
  • Patent number: 5310642
    Abstract: A silver halide photographic light-sensitive material for development in a development solution at a pH of at least 11.4 is disclosed. The material comprises a support having a silver halide emulsion layer comprising a compound capable of releasing a development inhibitor having a decomposition half-life in the range of above 4 to 225 hours at pH 10, said inhibitor after decomposition having substantially no photographic inhibitor properties, the compound having the formula:CAR--(TIME).sub.n --INH--L--Y (I).
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: May 10, 1994
    Assignee: Eastman Kodak Company
    Inventors: J. Ramon Vargas, Paul A. Burns, Phillip D. Knight
  • Patent number: 5306603
    Abstract: A light-sensitive material having high light-sensitivity and high contrast and excelling in color reproduction at all light-exposed regions, yellow-image sharpness, magenta-image sharpness, and cyan-image sharpness, and having its sensitivity little deteriorated during storage. The material comprises at least one light-sensitive, silver halide emulsion layer on a support, and contains at least one specified compound which releases a photographically useful group, and a yellow-colored cyan coupler.
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: April 26, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Atsuhiro Ohkawa
  • Patent number: 5306609
    Abstract: A silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, wherein the silver halide color photographic material comprises i) a nondiffusive coupler represented by the general formula (I) or (II): ##STR1## and ii) an acyl acetamide coupler comprising, as an acyl group, a group represented by the general formula (A) ##STR2## The silver halide color photographic material provides a high color density and exhibits a small fluctuation of photographic performance during preservation thereof and improved color image fastness and color reproducibility.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: April 26, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Takayoshi Kamio
  • Patent number: 5306607
    Abstract: A photographic element is disclosed comprising a support bearing at least one photographic silver halide emulsion layer and at least one photographic coupler comprising a pyrazolotriazole moiety (PT), the coupler having the formula ##STR1## wherein PT is a pyrazolotriazole moiety.
    Type: Grant
    Filed: November 4, 1992
    Date of Patent: April 26, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Teh-hsuan Chen, Frank D. Coms, Donald Singleton
  • Patent number: 5306605
    Abstract: A photographic recording material comprising a carrier and at least one photosensitive silver halide emulsion layer, a non-photosensitive layer and optional conventional intermediate and protective layers, characterised in that the photographic recording material (1) contains at least one silver halide emulsion layer having a silver iodide content .gtoreq.3 mol % and an average grain diameter .ltoreq.0.4 .mu.m, and (2), at least in one layer, contains a compound having the formula I ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 denote hydrogen, an optionally substituted hydrocarbon radical, an optionally substituted alkylthio, alkyloxy or arylthio radical, an optionally substituted amino group, OH or halogen or R.sup.1 and R.sup.2 together denote the radical for completing a carbocyclic or heterocyclic ring,R.sub.4, R.sub.5 denote hydrogen, an optionally substituted alkyl or aryl radical, or an optionally substituted heterocyclic radical,R.sub.6, R.sub.
    Type: Grant
    Filed: April 5, 1993
    Date of Patent: April 26, 1994
    Assignee: AGFA-Gevaert AG
    Inventors: Heinrich Odenwalder, Lothar Rosenhahn, Thomas Stetzer
  • Patent number: 5302500
    Abstract: A silver halide color light-sensitive material is disclosed, which-is improved in reproducibility of green color as well as orange color and sky blue color. The light-sensitive material comprises a support and a red-sensitive emulsion layer containing a cyan dye-forming coupler, a green-sensitive emulsion layer containing a magenta dye-forming coupler and a blue-sensitive emulsion layer containing a yellow dye-forming coupler provided on the support. The blue-sensitive silver halide emulsion layer has the maximum spectral sensitivity at a wavelength within the range of 415 nm to 430 nm and a spectral sensitivity of the blue-sensitive emulsion layer at 480 nm is not more than 35% of the maximum spectral sensitivity. The maximum spectral sensitivity and the spectral sensitivity at 480 nm are determined based on a reciprocal of light amount necessary for forming an image density of 0.7 above the minimum density of the blue-sensitive emulsion layer.
    Type: Grant
    Filed: February 3, 1992
    Date of Patent: April 12, 1994
    Assignee: Konica Corporation
    Inventors: Yasushi Irie, Hiroshi Shimazaki
  • Patent number: 5300412
    Abstract: The present invention relates to a silver halide color photographic material having at least one light-sensitive silver halide emulsion layer or light-insensitive layer on a support, wherein the light-sensitive silver halide emulsion layer or a light-insensitive layer contains a yellow coupler selected from the group consisting of a yellow coupler represented by the following formula (I), a yellow coupler represented by the following formula (II) and combinations thereof, and a cyan coupler selected from the group consisting of a phenolic cyan coupler having a phenylureido group at the 2-position and a carbonamido group at the 5-position, a naphtholic cyan coupler having an amino group at the 5-position and combinations thereof; ##STR1## wherein X.sub.1 and X.sub.2 each represents an alkyl group, an aryl group, or a heterocyclic group; X.sub.
    Type: Grant
    Filed: February 28, 1992
    Date of Patent: April 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Naoki Saito
  • Patent number: 5300406
    Abstract: A color photographic element comprises a support bearing at least one photographic silver halide emulsion layer, an image dye-forming coupler, and a combination of a development inhibitor releasing coupler and a wash-out coupler, the washout coupler (A)(i) capable of forming a compound that is washed out of the photographic element upon processing and(ii) capable of releasing a bleach accelerator group, and(iii) is represented by the formula:(SOL).sub.x --COUP--(R.sup.1).sub.y --(R.sup.2).sub.z --BLEACHThe development inhibitor releasing coupler is selected from a timed and non-timed development inhibitor releasing coupler.
    Type: Grant
    Filed: June 29, 1992
    Date of Patent: April 5, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Stephen P. Singer, David T. Southby, Donald, Jr. Singleton
  • Patent number: 5298376
    Abstract: This invention provides a color silver halide photographic element having improved color saturation and a method of developing the photographic element. The photographic element comprises at least a first and a second silver halide emulsion layer each sensitized to a different region of the spectrum with at least one of the emulsion layers being in reactive association with a DIR compound which can release an anionic development inhibitor. The photographic element further contains a barrier layer containing an anionic latex polymer such that the barrier layer is positioned further from the support than the first and second silver halide emulsion layers.
    Type: Grant
    Filed: October 1, 1991
    Date of Patent: March 29, 1994
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Allan F. Sowinski
  • Patent number: 5288593
    Abstract: A photographic element comprises a support bearing at least one photographic silver halide emulsion layer and at least one coupler (A) having a water solubilizing group wherein coupler (A) forms a compound that is washed out of the photographic element during photographic processing and forms a coupling-off group represented by the formula:--X--Rel.sup.2 --T.sup.2 --INHwherein;X is selected from oxygen, nitrogen or sulfur;X--Rel.sup.2 contains a photographic ballast and is a releasing group for releasing T.sup.2 --INH from X--Rel.sup.2 by elimination electron transfer reaction during photographic processing without substantial delay of releasing;T.sup.2 is a timing group that releases INH by elimination electron transfer reaction with timing delay during photographic processing;INH is a development inhibitor group.The photographic coupler (A) enables formation of easily removable dyes in photographic elements and processes that provide images having improved acutance, stability and interimage effects.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: February 22, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Drake M. Michno, Hans G. Ling, Teh H. Chen
  • Patent number: 5286613
    Abstract: A color photographic element comprising a support bearing at least one photographic silver halide emulsion layer and a combination of at least two couplers (A) and (B), coupler (A) capable upon reaction with oxidized developer of forming a compound that is washed out of the photographic element during photographic processing and capable of releasing a photographic development inhibitor or a timing group having a photographic development inhibitor, the timing group capable of providing timed release of said photographic development inhibitor and coupler (B) capable upon reaction with oxidized developer of forming a compound that is not washed out of the photographic element during photographic processing and capable of releasing a photographic development inhibitor with or without time delay. Such a color photographic material enables formation of improved color images.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: February 15, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Hans G. Ling, Drake M. Michno
  • Patent number: 5286615
    Abstract: A silver halide color photographic material comprises a support, a blue sensitive layer, a green sensitive layer and a red sensitive layer and at least one non-light-sensitive layer. The non-light-sensitive layer is an intermediate layer arranged between the silver halide emulsion layers. According to the present invention, the non-light-sensitive intermediate layer contains a compound represented by the formula (1a) or (1b): ##STR1## in which R.sup.12 is an aliphatic group, an aromatic group or a heterocyclic group; M is --CO--, --SO.sub.2 --, --N(R.sup.15)CO--, --OCO-- or --N(R.sup.15)SO.sub.2 --; each of R.sup.14, R.sup.15 and R.sup.24 independently is hydrogen, an alkyl group or an aryl group; L is a divalent linking group necessary for forming a 5, 6 or 7-membered ring; each of R.sup.11, R.sup.13 and R.sup.
    Type: Grant
    Filed: October 15, 1991
    Date of Patent: February 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Sadanobu Shuto, Akio Mitsui
  • Patent number: 5286598
    Abstract: Disclosed is a high-sensitive and super-high contrast silver halide photographic material suitable to use in photomechanical process. The material comprises a support having thereon having at least one light-sensitive silver halide emulsion layer and another hydrophilic colloid layer, wherein at least one of the emulsion layer or the other hydrophilic colloid layer contains a hydrazine derivative and a redox compound capable of releasing a development inhibitor by oxidation and further contains at least one hardening agent represented by formula (A): ##STR1## wherein R represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aralkyl group or a substituted or unsubstituted aryl group; and n represents 0 or 1.
    Type: Grant
    Filed: October 28, 1992
    Date of Patent: February 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuaki Inoue, Minoru Sakai, Shigeru Ohno, Hisashi Okamura
  • Patent number: 5286620
    Abstract: A silver halide color photographic material comprising a support having provided thereon at least one silver halide emulsion layer, which is characterized by containing a compound represented by the following formula (I):A--L.sub.1 --L.sub.2 --INH--Q (I)wherein A represents a coupler residue; L.sub.1 represents ##STR1## wherein W represents an oxygen atom, a sulfur atom, or --N(R.sub.13)--, R.sub.11 and R.sub.12 independently represent a hydrogen atom or a substituent, and R.sub.13 represents a substituent, or R.sub.11, R.sub.12 and R.sub.13 may each represent a divalent group and be connected together to form a cyclic structure; L.sub.2 represents a group capable of releasing INH-Q through electron transfer along a conjugated system or has the same meaning as L.sub.1 ; INH represents a development inhibitor residue connected to L.sub.
    Type: Grant
    Filed: February 15, 1991
    Date of Patent: February 15, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Atsuhiro Ohkawa, Masuji Motoki, Keiji Mihayashi
  • Patent number: 5283162
    Abstract: There are described photographic elements containing novel release compounds which release a blocked photographically useful group, such as a blocked development inhibitor. The blocking group is removed during processing as a result of reaction with sulfite ion contained in one of the processing baths.
    Type: Grant
    Filed: May 29, 1992
    Date of Patent: February 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Daniel L. Kapp, Wojciech Slusarek, David T. Southby
  • Patent number: 5283163
    Abstract: A photographic development inhibitor releasing compound comprises a releasable development inhibitor group comprising an amide group containing a carbon alpha to the amide functionality which is di- or tri-fluorinated. Such a compound is useful in photographic silver halide materials and processes to enable increased image sharpness and good interimage results.
    Type: Grant
    Filed: December 18, 1992
    Date of Patent: February 1, 1994
    Assignee: Eastman Kodak Company
    Inventors: Gregory J. Lestina, David T. Southby, Wojciech Slusarek, David A. Steele, Teh-Hsuan Chen
  • Patent number: 5279929
    Abstract: A photographic element comprises a support bearing at least one photographic silver halide emulsion layer and at least one coupler (A) having a water solubilizing group wherein coupler (A) forms a compound that is washed out of the photographic element during photographic processing and forms a coupling-off group represented by the formula:--X--Rel.sup.3 --T.sup.3 --INHwherein;X is selected from oxygen, nitrogen or sulfurX--Rel.sup.3 contains a photographic ballast and is a releasing group for releasing T.sup.3 --INH from X--Rel.sup.3 by intramolecular displacement reaction during photographic processing without substantial delay of releasing;T.sup.3 is a timing group that releases INH by intramolecular displacement reaction with timing delay during photographic processing;INH is a development inhibitor group;The photographic coupler (A) enables formation of easily removable dyes in photographic elements and processes that provide images having improved acutance, stability and interimage effects.
    Type: Grant
    Filed: June 24, 1992
    Date of Patent: January 18, 1994
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Drake M. Michno, Hans G. Ling, Teh H. Chen
  • Patent number: 5278036
    Abstract: A composition for developing a silver halide photographic light-sensitive material is disclosed. The composition has a form of a tablet or granule and comprises an organic development inhibitor having a solubility of not higher than 1 % by weight in an aqueous medium having a pH value of 6 to 12, and a water-soluble or alkali-soluble polymer having a melting point of 30.degree. C. to 100.degree. C. in an amount of not less than 5% by weight of total weight of the composition. The granules or tableted composition of the invention is preferably produced in a process comprising steps of (1) melting the polymer, (2) dissolving the organic development inhibitor in the melted polymer, (3) mixing the melted polymer containing the component with the remaining components of the composition, and (4) granulating or tableting the mixed composition. The composition is friendly for environment and is excellent in stability, conservability.
    Type: Grant
    Filed: September 2, 1992
    Date of Patent: January 11, 1994
    Assignee: Konica Corporation
    Inventors: Akira Kobayashi, Kenichi Tanaka
  • Patent number: 5278025
    Abstract: A method for forming an image comprising the steps of: (a) imagewise exposing silver halide photographic materials; where said photographic material contains (1) a compound represented by formula (I) ##STR1## wherein R.sub.1 represents an aliphatic group or an aromatic group; R.sub.2 represents a hydrogen atom, an alkyl group, or an aryl group, an alkoxy group, an aryloxy group, an amino group, a carbamoyl group, or an oxycarbonyl group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## or an iminomethylene group; and A.sub.1 and A.sub.2 both represent a hydrogen atom, or one of A.sub.1 or A.sub.
    Type: Grant
    Filed: August 21, 1992
    Date of Patent: January 11, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Okamura, Kazunobu Katoh, Tetsuro Kojima
  • Patent number: 5273870
    Abstract: Reduced silver halide coverage combined with minimal color granularity and high inter-image effects are obtained with a color photographic negative recording material which, for at least one of the spectral regions blue, green, red, contains a laminate of several component layers containing silver halide and color couplers and consisting of at least one middle component layer B and upper and lower component layers A, A', A", A'", . . . , the middle component layer B having a sensitivity higher by at least 3 DIN than each of the component layers A, A', A", A'", . . . , and in which the component layer B contains a DIR compound which is capable of releasing an inhibitor having a diffusibility of not less than 0.4.
    Type: Grant
    Filed: December 13, 1991
    Date of Patent: December 28, 1993
    Assignee: Agfa-Gevaert AG
    Inventors: Reinhart Matejec, Gunter Helling
  • Patent number: 5273859
    Abstract: A method for forming an image is disclosed. The method comprises the step of developing an imagewise exposed silver halide photographic material which contains a redox compound, with a developer which contains a silver halide developing agent and at least 0.1 mol/l of a sulfite and has a pH of 9 to 12, wherein the redox compound contains a redox group which is a hydrazine derivative which is capable of releasing a development inhibitor as a result of oxidation with the oxidized developer, and wherein after said oxidation, at least a portion of the development inhibitor is released into a developer where it reacts with a developer component and changes into a compound having little inhibiting effect. A silver halide photographic material used in that method is also disclosed.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: December 28, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Hisashi Okamura, Morio Yagihara
  • Patent number: 5272049
    Abstract: Disclosed is a silver halide color photographic light-sensitive material having at least two green-sensitive silver halide emulsion layers having different sensitivities on a support. The layer having the lowest sensitivity of the green-sensitive layers contains at least one type of coupler represented by Formula (M), and the layer having the highest sensitivity of the green-sensitive layers contains at least on type of coupler represented by Formula (N), Formula (I) or Formula (II), ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituent, Z represents a nonmetallic atom group required to form a 5-membered azole ring containing two to four nitrogen atoms, said azole ring being able to have a substituent including a condensed ring, and X represents a group except for a hydrogen atom, which can split off during a coupling reaction with an oxidized form of a developing agent. Formula (N) represents a compound represented by Formula (M) in which the split-off group X is replaced by a hydrogen atom.
    Type: Grant
    Filed: October 9, 1992
    Date of Patent: December 21, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kei Sakanoue, Mamoru Sakurazawa, Tadahisa Sato
  • Patent number: 5272043
    Abstract: A photographic DIR (development inhibitor-releasing) acetanilide coupler containing a carboxy group on the anilide moiety or a DIR naphtholic coupler containing on the 2-position a --CONH.sub.2 or --CONHCH.sub.3 group, capable upon oxidative coupling of forming a dye capable of being washed out of a photographic element upon processing, contains, in the coupling position, a coupling-off group comprising, in sequence, at least one ballasted linking group and at least one releasable development-inhibitor group (INH) which is a mercaptotetrazole group which enables a Log P in a pH 10 buffer of lower than -0.8. Such a DIR coupler is especially useful in a color photographic silver halide material and process which enables the dye formed from the DIR coupler to be washed out of the photographic material upon processing and enhanced color saturation through interimage effects.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: December 21, 1993
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Hans G. Ling
  • Patent number: 5270156
    Abstract: Disclosed is a silver halide color photographic light-sensitive 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 at least one of green-sensitive silver halide emulsion layers contains at least one of magenta couplers represented by Formula M-I and at least one of compounds capable of releasing a development inhibitor or a precursor of a development inhibitor, upon reaction with oxidized products of a development agent, represented by Formula D-I; ##STR1## wherein Z represents a group consisting of a non-metal atoms necessary to form a nitrogen containing heterocyclic ring, provided, the ring formed by the Z may have a substituent; X represents a hydrogen atom or a group releasable upon reaction with an oxidized product of a color developing agents; and R represents a hydrogen atom or a substituent, ##STR2## wherein R.sub.1 represents an alkyl group, R.sub.
    Type: Grant
    Filed: August 28, 1992
    Date of Patent: December 14, 1993
    Assignee: Konica Corporation
    Inventors: Shigeto Hirabayashi, Shuichi Sugita, Katsumasa Yamazaki
  • Patent number: 5262274
    Abstract: Disclosed is a novel silver halide photographic material which comprises at least one light-sensitive silver halide emulsion layer on a support. The light-sensitive layer or another hydrophilic colloidal layer contains a compound represented by the following general formula (1): ##STR1## wherein X represents a hydroxy, amino or sulfonamide group; A.sub.1 and A.sub.2 each represents a hydrogen atom, an alkylsulfonyl group, an arylsulfonyl group or an acyl group, with the proviso that at least one of A.sub.1 and A.sub.2 is a hydrogen atom; G.sub.1 represents --CO--, --COCO--, --CS--, --C(.dbd.NG.sub.2 R.sub.3)--, --SO--, --SO.sub.2 -- or --P(O)(G.sub.2 R.sub.3)--; G.sub.2 represents a mere bond, --O--, --S-- or --N(R.sub.3)--; R.sub.1 represents a hydrogen atom, an amino group, a sulfonamide group, a halogen atom, a hydroxyl group, an alkoxy group or an alkyl group; L represents a divalent linking group; n represents an integer 0 or 1; R.sub.
    Type: Grant
    Filed: April 30, 1992
    Date of Patent: November 16, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kazunobu Katoh
  • Patent number: 5262291
    Abstract: There are described color photographic elements containing novel release compounds which rapidly release a photographically useful group, such as a development inhibitor, from a timing group.
    Type: Grant
    Filed: July 30, 1992
    Date of Patent: November 16, 1993
    Assignee: Eastman Kodak Company
    Inventors: Wojciech Slusarek, Daniel L. Kapp
  • Patent number: 5260182
    Abstract: The present invention relates to a silver halide color photographic photosensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein a yellow dye forming coupler which is represented by formula (1) indicated below and/or a yellow dye forming coupler which can be represented by formula (2) indicated below are included in said silver halide emulsion layer, and the size distribution of the silver halide grains in said silver halide emulsion layer is mono-disperse: ##STR1## wherein X.sub.1 and X.sub.2 each represent an alkyl gorup, an aryl group or a heterocyclic group, X.sub.3 represents an organic residual group which, together with >N--, forms a nitrogen containing heterocyclic group, Y represent an aryl group or a heterocyclic group, and Z represents a group which is released when the coupler represented by formulae (1) and (2) reacts with the oxidized form of the developing agent.
    Type: Grant
    Filed: March 3, 1992
    Date of Patent: November 9, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Satoshi Nagaoka, Akira Ogawa
  • Patent number: 5258271
    Abstract: There is disclosed a silver halide color photographic material having a photosensitive silver halide emulsion layer on a support, which comprises, in said photosensitive silver halide emulsion layer, a coupler selected from the group consisting of yellow dye-forming couplers represented by formulas (Y-I) to (Y-III), as defined in claim 1, and a quenching coupler selected from the group consisting of cyan dye-forming couplers or magenta dye-forming couplers represented by formula (C-I), (C-II), (C-III), (M), or (m), as defined in claim 1, or a quenching dye obtained by a coupling reaction of above couplers with the oxidized product of a developing agent represented by formula (A) as defined in claim 2.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: November 2, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akimitsu Haijima, Yasuhiro Yoshioka
  • Patent number: 5258259
    Abstract: A method of forming an image comprising the steps of (a) imagewise exposing a silver halide photographic material to light substantially having no wavelengths of less than 370 nm, the silver halide photographic material comprising: (i) a support, (ii) at least one light-sensitive silver halide emulsion layer formed on the support, (iii) at least one other hydrophilic colloid layer, and (iv) a redox compound that releases a development inhibitor when oxidized in at least one of the at least one light-sensitive layer or the at least one hydrophilic colloid layer; and (b) processing the exposed silver halide material from step (a) to produce a .tau. value of at least 10.0. The redox compound is a compound represented by formula (I): ##STR1## wherein A.sub.1 and A.sub.
    Type: Grant
    Filed: December 20, 1991
    Date of Patent: November 2, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuaki Inoue, Hisashi Okamura
  • Patent number: 5256529
    Abstract: A magenta dye-forming pyrazolotriazole coupler solubilized by one or two sulfonamido groups results in a coupler having increased coupling activity, low fog and good dispersability. The couplers are useful in photographic elements and react with oxidized silver halide to form dyes, and/or to release photographically useful groups.
    Type: Grant
    Filed: July 27, 1992
    Date of Patent: October 26, 1993
    Assignee: Eastman Kodak Company
    Inventors: Robert F. Romanet, Hans G. Ling, David Hoke