And Development Inhibitor Or Development Inhibitor Releasing Agent Patents (Class 430/544)
  • Patent number: 5958662
    Abstract: A photographic element, comprises a support bearing one or more silver halide emulsions and one or more pyrazolone magenta dye-forming DIR couplers of structure I or II: wherein:the R.sub.1 substituents are individually selected from the group consisting of halogen atoms and alkyl, phenyl, alkoxy, phenoxy, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl, aryloxcarbonyl, and trifluoromethyl groups;n is 1 to 5;R.sub.2 is an alkyl group or a phenyl group; andR.sub.3 is a substituent containing at least 2 carbon atoms and selected from the group consisting of an alkylthio group, an arylthio group, an alkoxy group, an phenoxy group or a carbonamido group of the formula: --NHCOR.sub.4, wherein R.sub.4 is an alkyl group, a phenyl group, an alkoxy group or a phenoxy group.
    Type: Grant
    Filed: March 25, 1997
    Date of Patent: September 28, 1999
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, David A. Steele, Jerrold N. Poslusny
  • Patent number: 5945267
    Abstract: A silver halide color photographic light sensitive material is disclosed, comprising a support having thereon photographic component layers, at least one of the component layers containing a coupler represented by the following formula, and the photographic material having an overall silver potential of 50 to 120 mV.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: August 31, 1999
    Assignee: Konica Corporation
    Inventor: Katsuya Yabuuchi
  • Patent number: 5942381
    Abstract: A photographic element comprising a silver halide emulsion layer having associated therewith a 1-phenyl-3-anilino-4-benzotriazolyl-5-pyrazolone magenta dye-forming DIR coupler of structure I: ##STR1## wherein: R.sub.1 is hydrogen, chlorine, fluorine or a methyl group;R.sub.2, R.sub.3, and R.sub.4 are individually selected from the group consisting of hydrogen, halogen, alkyl, phenyl, alkoxy, phenoxy, alkylthio, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl and aryloxycarbonyl groups;R.sub.5 is hydrogen, bromine, chlorine, fluorine, or an alkyl group;R.sub.6 and R.sub.7 are independently selected from the group consisting of hydrogen, halogen, carbonamido, carbamoyl, sulfonamido, sulfamoyl, alkylsulfonyl, arylsulfonyl, alkylsulfoxyl, arylsulfoxyl, sulfonyloxy, alkoxycarbonyl, aryloxycarbonyl, acyloxy, acyl, imido, trifluoromethyl and cyano groups, provided that at least one of R.sub.6 and R.sub.7 is not hydrogen;R.sub.8 and R.sub.
    Type: Grant
    Filed: June 12, 1997
    Date of Patent: August 24, 1999
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Ronald E. Leone, Jerrold N. Poslusny
  • Patent number: 5939246
    Abstract: A process of compositing two or more separate images comprising: (a) imagewise exposing a color negative photographic recording material to a subject in front of a uniformly colored screen background, wherein the photographic recording material comprises a support bearing red light, green light, and blue light sensitive color records, and at least one distributed red light absorbing compound in an amount such as to reduce the sensitivity of the red light sensitive color record by at least 40%, and the light sensitivities of the green light sensitive color record and the blue light sensitive color record are each reduced by less than 20% by the presence of any distributed light absorbing compounds, (b) forming a color negative image of the subject and screen background by developing the exposed photographic material with a color developing agent, (c) separating the subject image of the color negative from the screen background image, and (d) compositing the separated subject image with a second image.
    Type: Grant
    Filed: January 15, 1998
    Date of Patent: August 17, 1999
    Assignee: Eastman Kodak Company
    Inventors: John C. Brewer, Donald H. Hunger
  • Patent number: 5932407
    Abstract: A color photographic element comprising a film support and a first radiation-sensitive layer further includes an oxidized developer-scavenging naphtholic coupler that is substantially immobilized in the element but forms a dye that can be removed from the material during photographic processing. The naphtholic coupler, which comprises a dye-forming moiety and a ballasted, substantially photographically inert coupling-off moiety, has the structure ##STR1## where R.sup.1 and R.sup.2 each independently represents hydrogen, an alkyl group, an alkoxyalkyl group, or a hydroxyalkyl group, R.sup.1 and R.sup.2 together containing a total of up to 4 carbon atoms; R.sup.3 represents hydrogen, halo, or an alkoxy, an alkylcarbonamido, an alkylsulfonamido, a carbamoyl, or a sulfamoyl group containing up to 4 carbon atoms; R.sup.1, R.sup.2, and R.sup.
    Type: Grant
    Filed: April 30, 1997
    Date of Patent: August 3, 1999
    Assignee: Eastman Kodak Company
    Inventors: William J. Begley, Stephen P. Singer, Allan F. Sowinski
  • Patent number: 5912110
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formula ##STR1## wherein COUP is a coupler moiety having a coupling site to which T.sup.1 is attached;T.sup.1 is a timing or linking group which releases from COUP during processing and which functions by electron transfer down a conjugated chain, or by nucleophilic displacement reaction, to release from HETERO;HETERO is a heterocyclic group containing at least two heteroatoms independently selected from oxygen, nitrogen, or sulfur, wherein one of the heteroatoms is directly attached to T.sup.1 ;R.sup.1 and R.sup.2 are independently selected from hydrogen, or an aliphatic, carbocyclic, or heterocyclic group, or may be bonded together to form a 5, 6, or 7 membered ring; andPUG is a photographically useful group.
    Type: Grant
    Filed: June 10, 1997
    Date of Patent: June 15, 1999
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Teh Hsuan Chen, Frank Dino Coms, Donald Singleton, Jr.
  • Patent number: 5837438
    Abstract: A compound represented by the following general formula (I) is added to at least one layer of a silver halide photographic photosensitive material, thereby improving sharpness and graininess or decreasing a variation in photographic performance during storage after photography and before development: ##STR1## where A represents a coupler moiety, each of R.sup.1 and R.sup.2 independently represents a hydrogen atom or a substituent, each of R.sup.3 and R.sup.4 independently represents a hydrogen atom or an alkyl group, INH represents a group having a development inhibiting function, and R.sup.5 represents a nonsubstituted phenyl group, a nonsubstituted primary alkyl group, or a primary alkyl group substituted with a group other than an aryl group, at least one of R.sup.1 to R.sup.4 being a substituent other than a hydrogen atom, and an --OC(.dbd.O)-- group combining with one of two nitrogen atoms forming a pyrazole ring.
    Type: Grant
    Filed: March 23, 1993
    Date of Patent: November 17, 1998
    Assignee: Fuji Photo Film, Co., Ltd.
    Inventors: Atsuhiro Ohkawa, Keiji Mihayashi
  • Patent number: 5834167
    Abstract: A photographic element comprising a light sensitive silver halide emulsion layer having associated therewith an open chain .alpha.-carbonyl acetanilide yellow dye-forming coupler having the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl, aryl, heterocyclic, and amino groups, provided that R.sub.1 may form a ring bonded to another carbon atom which is a member of Ring "A";each R.sub.
    Type: Grant
    Filed: June 25, 1997
    Date of Patent: November 10, 1998
    Assignee: Eastman Kodak Company
    Inventors: Barbara B. Lussier, John DiCillo
  • Patent number: 5830618
    Abstract: A silver halide photographic material is provided which comprises a support having thereon at least one light-sensitive silver halide emulsion layer wherein said light-sensitive layer or another hydrophilic colloidal layer provided on the support contains a compound represented by formula (I) and a hydrazine derivative represented by formula (II): ##STR1## wherein R.sup.1 and R.sup.2 may be the same or different and each represents a hydroxyl, hydroxylamino, amino, alkylamino, arylamino, aralkylamino, alkoxy, phenoxy, alkyl, aryl, alkylthio, or phenylthio group, ##STR2## wherein R.sup.3 represents an aliphatic or aromatic group; R.sup.4 represents a hydrogen atom, or an alkyl, aryl, alkoxy, aryloxy, amino or hydrazino group; G.sup.1 represents a --CO--, --SO.sub.2 --, --SO--, --P(O)R.sup.4, --CO--CO--, thiocarbonyl or iminomethylene group; and A.sup.1 and A.sup.2 each represents a hydrogen atom, or one of A.sup.1 and A.sup.
    Type: Grant
    Filed: August 6, 1996
    Date of Patent: November 3, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsuo Yamaguchi
  • Patent number: 5827638
    Abstract: A silver halide photographic light-sensitive material is described, which comprises a support having provided thereon a light-sensitive silver halide emulsion layer, wherein the silver halide photographic material contains a compound having been blocked by a metal chelate and capable of releasing a photographically useful compound therefrom through a reaction of the metal chelate moiety with a water-soluble chelating agent capable of forming a metal chelate having a higher stability constant on development. A method for forming an image is also described, which comprises processing, after imagewise exposure, a silver halide photographic light-sensitive material with a processing solution containing a nitrogen-containing heterocyclic carboxylic acid-base chelating agent.
    Type: Grant
    Filed: March 20, 1997
    Date of Patent: October 27, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Jiro Tsukahara, Hideaki Satoh, Osamu Uchida, Toshio Kawagishi, Yasufumi Nakai
  • Patent number: 5827637
    Abstract: A silver halide light-sensitive material is disclosed, comprising a compound represented by the following formula (1): ##STR1## wherein PUG represents a photographically useful group bonded to B through a hetero atom thereof, CHL represents a multidentate ligand capable of coordinating to a metal atom, B represents a block group of which bonding to PUG is cleaved on cleavage of the bonding of CHL--M, M represents a divalent or greater metal, L represents a chelating ligand, m represents an integer of from 1 to 3, n represents 0 or an integer of 1 or 2, and the sum of m and n does not exceed 3. Also disclosed is an image formation method using the above-described silver halide light-sensitive material.
    Type: Grant
    Filed: March 19, 1997
    Date of Patent: October 27, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Uchida, Jiro Tsukahara, Toshio Kawagishi, Hideaki Satoh, Yasufumi Nakai
  • Patent number: 5821043
    Abstract: This invention provides a photographic element comprising a support bearing one or more silver halide emulsions and one or more pyrazolone magenta dye-forming DIR couplers of structure I: ##STR1## wherein: the R.sub.1 substituents are individually selected from halogen atoms and alkyl, phenyl, alkoxy, phenoxy, alkylthio, carbonamido, sulfonamido, carbamoyl, alkoxycarbonyl, and aryloxycarbonyl groups;n is 0 to 5;R.sub.2 is an alkyl group or a phenyl group; andR.sub.3 is an alkylthio group, an arylthio group, an alkoxycarbonyl group or an aryloxycarbonyl group.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: October 13, 1998
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, David A. Steele, Jerrold N. Poslusny
  • Patent number: 5780198
    Abstract: A silver halide photographic material comprising a plurality of light-sensitive silver halide emulsion layers, wherein (A) at least one of the layers contains a hydrazine nucleating agent represented by formula (II): ##STR1## wherein R.sub.1 represents an aliphatic group or an aromatic group; R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a hydrazine group, a carbamoyl group, or an oxycarbonyl group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfinyl group, a sulfoxy group, ##STR2## a thiocarbonyl group, or an iminomethylene group; and A.sub.3 and A.sub.4 each represents a hydrogen atom, a substituted or unsubstituted alkylsulfonyl group, a substituted or unsubstituted arylsulfonyl group, or a substituted or unsubstituted acyl group, provided that at least one of A.sub.3 and A.sub.
    Type: Grant
    Filed: February 15, 1995
    Date of Patent: July 14, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takahiro Goto, Kazunobu Katoh, Minoru Sakai
  • Patent number: 5759757
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the element containing an image modifying compound which comprises a magenta coupler moiety which upon reaction with oxidized color developing agent during processing forms a dye, said coupler moiety having attached to the coupling site, either directly or through a timing group, a 1,2,3-triazole moiety, the attachment being through the second nitrogen atom of the triazole moiety.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: June 2, 1998
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Frank D. Coms, Daniel L. Kapp
  • Patent number: 5736307
    Abstract: Silver halide photographic element comprising a support having coated thereon red-, green- and blue-sensitive silver halide emulsion layers comprising, respectively, cyan, magenta and yellow dye-forming couplers, wherein at least one silver halide emulsion layer comprises a yellow dye-forming DIR coupler having a 1,2,4-triazolyl group attached to the coupling position, said 1,2,4-triazolyl group comprising a hydrolyzable alkoxy- or aryloxy-carbonyl group attached to a benzylthio substituent on the 1,2,4-triazolyl group.Preferably, the yellow dye-forming DIR coupler is represented by the formula ##STR1## wherein R.sub.1 represents an alkyl group, an aryl group or --NHR.sub.5, wherein R.sub.5 represents an alkyl group or an aryl group,R.sub.2 represents an alkyl group or an aryl group, TIME represents a timing group,n is 0 or 1,R.sub.3 represents an alkyl group or a phenyl group, andR.sub.4 represents hydrogen atom or an alkyl group.
    Type: Grant
    Filed: April 8, 1996
    Date of Patent: April 7, 1998
    Assignee: Imation Corp
    Inventors: Massimo Bertoldi, Antonio Poggi, Enzo Coraluppi
  • Patent number: 5719011
    Abstract: Compounds of the formula I are suitable as release compounds for photographically useful groups (photographic units). On reacting with nucleophilic reagents, preferably with dinucleophiles, the photographically useful group is released. ##STR1## In formula I: PUG means a photographically useful group;A means a strong electron acceptor;V means a vinylene group or two or more successive vinylene groups, wherein the vinylene group or two successive vinylene groups may form part of an aromatic ring system;L means one or more timing groups;m means 0 (zero) 1 or 2;n means 0 (zero), 1 or 2;R.sup.1 means H or methyl;R.sup.2 means H, alkyl with 1-18 C atoms or aryl;R.sup.3, R.sup.4 mean H or an organic group,wherein R.sup.2 and R.sup.3 may also together mean the residue necessary to complete a ring.
    Type: Grant
    Filed: October 9, 1996
    Date of Patent: February 17, 1998
    Assignee: Agfa-Gevaert AG
    Inventor: Erich Wolff
  • Patent number: 5719017
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the element further comprising a photographic coupler represented by the formulaCOUP--(T.sup.1).sub.b --T.sup.2 --(T.sup.3).sub.c --PUGwhereinthe substituents are as defined herein the specification.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: February 17, 1998
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Frank Dino Coms, Teh-Hsuan Chen, Donald Singleton, Jr.
  • Patent number: 5709987
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the element further comprising a photographic coupler represented by the formulaCOUP-(T.sup.1).sub.b -T.sup.2 -(T.sup.3).sub.c -PUGwherein the substituents are as defined herein the specification.
    Type: Grant
    Filed: October 17, 1996
    Date of Patent: January 20, 1998
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Frank D. Coms, Teh-Hsuan Chen
  • Patent number: 5702877
    Abstract: A colour photographic silver halide material with a support, at least one silver halide emulsion layer and at least one non-light sensitive layer applied thereto, wherein the silver halide emulsion layer contains at least one colour coupler, and wherein the silver halide emulsion layer or the non-light sensitive layer contains a compound of the formula (I) ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 mean hydrogen or an organic residue andn means 0 or an integer from 1 to 4 orR.sub.1 and R.sub.2 together, R.sub.1 and an adjacent residue R.sub.3 together or two adjacent residues R.sub.3 together form a carbocyclic or heterocyclic ring with 5 to 7 ring atoms orR.sub.1, R.sub.2 or R.sub.3 mean a bridging member by means of which two compounds of the formula (I) are attached together orR.sub.1, R.sub.2 or R.sub.3 are attached to a polymer via a bridging member,wherein at least one of the substituents R.sub.1, R.sub.2 and R.sub.3 is an organic residue,is distinguished by improved grain.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: December 30, 1997
    Assignee: Agfa-Gevaert AG
    Inventors: Heinrich Odenwalder, Hans Langen, Uwe Dahlhaus, Heinz-Dieter Schutz
  • Patent number: 5698383
    Abstract: This invention provides a color silver halide photographic element comprising a support having situated thereon a red light-sensitive, cyan dye-forming unit; a green light-sensitive, magenta dye-forming unit; and a blue light-sensitive, yellow dye-forming unit. The photographic element further comprising a first layer and a second layer, the second layer being a layer which provides a site of development for solution physical development.
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: December 16, 1997
    Assignee: Eastman Kodak Company
    Inventors: Spencer Alan Pugh, Sang Hyung Kim
  • Patent number: 5691124
    Abstract: This invention provides color silver halide photographic element comprising a red light-sensitive, cyan dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; a green light-sensitive, magenta dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; and a blue light-sensitive, yellow dye-forming unit comprising a photosensitive silver halide emulsion layer and an image dye-forming coupler; the photographic element further comprising a first layer and a second layer, the second layer being a layer which provides a site of development for solution physical development; wherein at least one of the dye-forming units comprises two or more emulsion layers spectrally sensitized to the same region of the visible spectrum, but exhibiting different photographic sensitivities and wherein the first layer is positioned adjacent to the layer containing the slowest emulsion of said dye-forming unit and between the layer co
    Type: Grant
    Filed: December 28, 1995
    Date of Patent: November 25, 1997
    Assignee: Eastman Kodak Company
    Inventors: Sang Hyung Kim, Spencer Alan Pugh
  • Patent number: 5686234
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formulaCOUP--T.sup.1 --T.sup.2 --(T.sup.3).sub.b --PUGwhereinCOUP is a coupler moiety having a coupling site to which T.sup.1 is attached;T.sup.1 is a timing or linking group which releases from COUP during processing and which functions by electron transfer down a conjugated or unconjugated chain, or by nucleophilic displacement reaction, to release T.sup.2, T.sup.2 being an indazole timing or linking group which, after release from T.sup.1, functions by electron transfer down a conjugated chain to release T.sup.3 or PUG, and which is represented by the formula: ##STR1## wherein ** denotes the point of attachment to T.sup.1 and *** denotes the point of attachment to T.sup.3 or PUG;R.sup.1 and R.sup.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: November 11, 1997
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Teh Hsuan Chen, Donald Singleton, Jr., Frank Dino Coms
  • Patent number: 5674673
    Abstract: The invention concerns a color negative process wherein a photographic material comprising silver chloride or silver bromide and a DIR or DIAR coupler is processed in the presence of a polyester comprising intralinear thioether atoms.
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: October 7, 1997
    Assignee: Eastman Kodak Company
    Inventors: Jacques Roussilhe, John Martin Higgins
  • Patent number: 5670301
    Abstract: A photographic element comprising a support having situated thereon at least one silver halide emulsion layer, the layer containing a photographic coupler represented by the formula ##STR1## wherein COUP is a coupler moiety having a coupling site to which T.sup.1 is attached;T.sup.1 is a timing or linking group which releases from COUP during processing and which functions by electron transfer down a conjugated chain, or by nucleophilic displacement reaction, to release from HETERO;HETERO is a heterocyclic group containing at least two heteroatoms independently selected from oxygen, nitrogen, or sulfur, wherein one of the heteroatoms is directly attached to T.sup.1 ;R.sup.1 and R.sup.2 are independently selected from hydrogen, or an aliphatic, carbocyclic, or heterocyclic group, or may be bonded together to form a 5, 6, or 7 membered ring; andPUG is a photographically useful group.
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: September 23, 1997
    Assignee: Eastman Kodak Company
    Inventors: William James Begley, Teh Hsuan Chen, Frank Dino Coms, Donald Singleton, Jr.
  • Patent number: 5670306
    Abstract: The invention provides a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a 1-aryl-2-pyrazolin-5-one coupler bearing a 4-aryloxy coupling-off group containing a group capable of releasing a photographically useful group (PUG) wherein:(1) the 1-aryl-2-pyrazolin-5-one ring contains a 3-cyano substituent or a substituent linked to the 3-position by an acyl group, thio group, sulfoxide group, sulfone group, or a tetrahedral carbon atom which tetrahedral carbon atom has bonded thereto three other atoms or substituent groups for which the sum of the .sigma.* values is at least 1.5; and(2) the 4-aryloxy coupling-off group:(a) contains ring substituents selected so that the sum of the Hammett's sigma constants for all substituents on the aryloxy ring is at least 0.
    Type: Grant
    Filed: October 15, 1996
    Date of Patent: September 23, 1997
    Assignee: Eastman Kodak Company
    Inventors: Jerrold Neal Poslusny, Lawrence G. Anderson, Jared Ben Mooberry, Wojciech Kazimierz Slusarek, Zheng Zi Wu
  • Patent number: 5660975
    Abstract: A silver halide color photographic material comprising at least one layer provided on a support, said layer containing a coupler represented by the following formula (1): ##STR1## wherein Z.sub.a represents --C(R.sub.3).dbd. or --N.dbd.; Z.sub.b represents --C(R.sub.3).dbd. when Z.sub.a is --N.dbd. or Z.sub.b represents --N.dbd. when Z.sub.a is --C(R.sub.3).dbd.; R.sub.1 and R.sub.2 each represents an electron attractive group having a Hammett substituent constant .sigma..sub.p of 0.2 to 1.0; R.sub.
    Type: Grant
    Filed: September 12, 1996
    Date of Patent: August 26, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takayuki Ito, Naoto Matsuda
  • Patent number: 5641613
    Abstract: The invention provides a photographic element comprising a support bearing a light-sensitive photographic silver halide layer containing (1) a bicyclic azole coupler (2) an azopyrazolone masking coupler and (3) a low impact development inhibitor releasing (LIDIR) coupler having at least one hydrogen atom at the coupling site and which does not substantially reduce contrast in the layer in which it is coated.
    Type: Grant
    Filed: January 25, 1996
    Date of Patent: June 24, 1997
    Assignee: Eastman Kodak Company
    Inventors: Jane Sarah Boff, Stephen Paul Singer
  • Patent number: 5630927
    Abstract: A silver halide color light-sensitive material is disclosed which contains a compound capable of reacting with an oxidation product of a developing agent to release a photographically useful group, preferably a development inhibitor. The coupling product of the compound is dissolved into a processing solution when subjected to development processing, and, therefore, forms no substantial color image. The light-sensitive material shows improvements in sharpness, graininess, color reproducibility, and storage stability.
    Type: Grant
    Filed: April 8, 1994
    Date of Patent: May 20, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshio Kawagishi, Kensuke Morita, Yoshio Ishii, Keiji Mihayashi
  • Patent number: 5631125
    Abstract: A photographic element is disclosed containing a compound capable of releasing image-wise a photographic useful group (PUG) based on a mechanism involving radical formation under development conditions and splitting of a homolytically labile bond. In a preferred embodiment the compound capable of releasing the PUG is a hydrazine derivative or a 1-aryl-3-pyrazolidinone derivative.
    Type: Grant
    Filed: February 29, 1996
    Date of Patent: May 20, 1997
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Jean-Marie Dewanckele, Johan Loccufier, Pierre De Clercq, Dirk Van Haver, Noel Hosten
  • Patent number: 5616446
    Abstract: Disclosed is a silver halide photographic light-sensitive material comprising a support having on one side thereof hydrophilic colloid layers including a silver halide emulsion layer, wherein at least one of the hydrophilic colloid layers contains a redox compound having at least one carbonyl group, wherein said redox compound is capable of being oxidized with an oxidized product of a developing agent in a photographic processing so as to release a development inhibitor, and wherein said redox compound satisfies the following Formulae 1 through 3:Formula 1development inhibitor releasing rate (%) under a condition (A).gtoreq.4.5,Formula 2development inhibitor releasing rate (%) under a condition (B)<15.0,Formula 3development inhibitor releasing rate (%) under a condition (A)>development inhibitor releasing rate (%) under condition (B).
    Type: Grant
    Filed: September 26, 1995
    Date of Patent: April 1, 1997
    Assignee: Konica Corporation
    Inventors: Norio Miura, Tawara Komamura, Seiji Hidaka, Takeo Arai
  • Patent number: 5609999
    Abstract: A silver halide color photographic material can be formed which exhibits good storage stability and provides excellent sharpness and superior color reproducibility by incorporating therein a dye comprising an indole moiety having a methyl group substituted by an electron-withdrawing group at the 1-position and an acidic nucleus which are connected together via a methine chain. The dye is typically provided in a light-insensitive layer in the form of a solid dispersion. Specific embodiments include the combination of the indole-containing dye with a magenta dye, fogged silver halide grains, a DIR compound or a mercaptoheterocyclic compound.
    Type: Grant
    Filed: September 7, 1995
    Date of Patent: March 11, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shunichi Aida, Keisuke Matsumoto, Toshiyuki Watanabe, Koji Wariishi
  • Patent number: 5599656
    Abstract: Photographic elements are disclosed having a first coupler represented by the formula:COUP.sub.1 -T-INHwhereinCOUP.sub.1 is a coupler moiety,T is a timing group bonded to INH through a substituted or unsubstituted methylene group contained in T and bonded to COUP.sub.1 through an O, S, or N atom contained in T,and INH is a development Inhibitor moiety, andwherein the T-INH group is able to undergo electron transfer along a conjugated system therein to cleave INH after T-INH is cleaved from COUP.sub.1, 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: August 6, 1990
    Date of Patent: February 4, 1997
    Assignee: Eastman Kodak Company
    Inventors: Drake M. Michno, Richard P. Szajewski, Stephen P. Singer
  • Patent number: 5597683
    Abstract: Disclosed is a silver halide color photographic photosensitive material comprising a support, having thereon at least one photosensitive silver halide layer. At least 50% of the total projected area of the silver halide grains in the emulsion layer is accounted for by tabular grains of an aspect ratio at least 2:1, and a compound which can be represented by formula (I) below is in at least one layer.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: January 28, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Uchida, Shunichi Tomita, Toshio Kawagishi
  • Patent number: 5594047
    Abstract: Loaded latex dispersions of hydrophobic photographically useful compounds with a wide variety of polymer latices are prepared by preparing an oil phase solution of the hydrophobic compound or compounds, preferably essentially free of water-miscible or volatile solvent, combining the oil solution with one or more aqueous solutions, at least one of which contains a polymer latex, and mixing the combination of oil solution, aqueous solution and latex under high shear or turbulence sufficient to cause loading of the photographically useful compound into the dispersed polymer latex wherein the pH of the mixture does not need to be significantly changed.
    Type: Grant
    Filed: February 17, 1995
    Date of Patent: January 14, 1997
    Assignee: Eastman Kodak Company
    Inventors: Ralph B. Nielsen, Thomas A. Rosiek, David F. Bates, James S. Honan, Hwei-Ling Yau
  • Patent number: 5576158
    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: September 26, 1994
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Frederick E. Ford, Arlyce T. Bowne, Carl Kotlarchik, Jr.
  • Patent number: 5576167
    Abstract: A photographic element comprises a light-sensitive silver halide emulsion layer having associated therewith a coupler based on a 1-aryl-2-pyrazolin-5-one ring and represented by formula I: ##STR1## wherein: Ar.sup.1 and Ar.sup.2 are each independently aryl groups comprising a carboaromatic or heteroaromatic ring;X, Y, and Z are bonded to a carbon atom alpha to the 3-position and are independently selected from the group consisting of hydrogen and substituent groups such that the sum of the Taft .sigma.* values for X, Y, and Z is at least 1.5;R represents n independently selected substituent groups bonded to the Ar.sup.2 ring, provided that the sum of the appropriate Hammett .sigma. constants for all R substituent groups is at least 0.3, and provided further that two of X, Y, and Z may join to form a ring; andn is 0 to 5;provided that R may not be a nitro group ortho to the oxygen atom bonding Ar.sup.2 to the 1-aryl-2-pyrazolin-5-one ring.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: November 19, 1996
    Assignee: Eastman Kodak Company
    Inventors: Jerrold N. Poslusny, Lawrence G. Anderson, Jared B. Mooberry, Zheng Z. Wu
  • Patent number: 5571661
    Abstract: A silver halide light-sensitive color photographic materials is disclosed. The material comprises a compound which releases, upon reaction with an oxidation product of a color developing agent, a 2-mercapto-1,3,4-oxadiazole derivative represented by formula I: ##STR1## wherein L.sub.1 represents a linkage or a divalent linking group; R.sup.1 represents an alkyl group, an aryl group or a heterocyclic group; R.sup.2 represents a hydrogen atom or a substituent; n represents an integer of one, two or three; and m represents an integer of zero, one or two, provided that sum of m and n is three.The color photographic material produces a dye image having enhanced image-sharpness, showing large inter-image effect with reduced reduction of gamma in the layer, to which the coupler is incorporated and having improved stability with the lapse of time during storage.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 5, 1996
    Assignee: Konica Corporation
    Inventors: Osamu Ishige, Takesi Nakamura, Naoki Sato, Yutaka Kaneko
  • Patent number: 5567577
    Abstract: A photographic element comprising a support having located thereon at least one silver halide emulsion layer, the element containing a release compound that provides a non-imagewise distribution of a photographically active moiety, the release compound comprising a blocking group from which the photographically active moiety is released, the release compound further comprising a ballasting group other than a coupler moiety, and an aqueous solubilizing group, both the ballasting group and the aqueous solubilizing group being attached to the blocking group.
    Type: Grant
    Filed: October 5, 1995
    Date of Patent: October 22, 1996
    Assignee: Eastman Kodak Company
    Inventors: Thomas R. Welter, David A. Dickinson, Keath T. Chen
  • Patent number: 5547818
    Abstract: A color photographic print material with the usual three different sensitized silver halide emulsion layers and at least one silver halide emulsion layer containing no color coupler (control layer) with a spectral sensitization range outside the sensitization range of the image-producing layers, wherein the control layer contains a substance A, which, on negative development of the silver halide emulsion used in the control layer (control emulsion), releases a compound B which alters the gradation of the image-producing layers, is usable as a print material with variable gradation.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: August 20, 1996
    Assignee: Agfa Gevaert AG
    Inventors: Otto Lapp, Arno Schmuck, Wolfgang Schmidt, J org Siegel
  • Patent number: 5547824
    Abstract: Disclosed is a silver halide color photographic light-sensitive material which contains an emulsion in which the silver iodide surface content of the silver halide grains is less than the average silver iodide content of the grains. The material also contains a compound capable of releasing two photographically useful groups through at least one timing group and/or a compound capable of releasing a photographically useful group through two timing groups.
    Type: Grant
    Filed: July 7, 1992
    Date of Patent: August 20, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Atsuhiro Ohkawa
  • Patent number: 5545513
    Abstract: A multilayered color photographic element contains a support having coated thereon photographic silver halide emulsion layers including at least three layers each having the same spectral sensitivity but having, respectively, the most, mid, and least light sensitivity wherein the most and mid sensitive layers are contiguous and the most sensitive layer is extremely starved of image dye-forming coupler.
    Type: Grant
    Filed: June 11, 1993
    Date of Patent: August 13, 1996
    Assignee: Eastman Kodak Company
    Inventor: Larry D. Edwards
  • Patent number: 5543279
    Abstract: A silver halide light-sensitive material containing a compound represented by formula (I): ##STR1## wherein variables in the above formula (I) are defined in the specification. The silver halide light-sensitive material has a small fluctuation in sensitivity even when the processing temperature changes and has an improved color reproduction and an excellent discrimination and can achieve low Dmin and high Dmax.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: August 6, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoto Matsuda, Makoto Yamada, Michio Ono, Yasuhiro Ishiwata, Osamu Uchida
  • Patent number: 5541050
    Abstract: A silver halide color photographic light-sensitive material having at least one light-sensitive silver halide emulsion layer formed on a support containing light-sensitive silver halide grains which have been chemically sensitized by at least one of a selenium sensitizer, a gold sensitizer and a sulfur sensitizer and at least one of the layers of the material contains a compound represented by the following formula (I) and/or a compound represented by the following formula (II) in which A is a coupler residue or a redox group, L.sub.1 and L.sub.3 are divalent timing groups, L.sub.2 is a timing group with a valency of 3 or more, PUG is a photographically useful group, j and n are integers, each of 0 to 2, m is 1 or 2, s is 2 or a greater integer obtained by subtracting 1 from the valence of L.sub.2, L.sub.4 is --OCO-- group, and L.sub.5 is a group which releases PUG by electron transfer along a conjugated system.Formula (I)A'--(L.sub.1).sub.j --(L.sub.2).sub.m --[(L.sub.3).sub.n --PUG].sub.8Formula (II)A--L.
    Type: Grant
    Filed: August 10, 1994
    Date of Patent: July 30, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Mikio Ihama
  • Patent number: 5538834
    Abstract: A method is disclosed for developing an image in a photographic element comprising a support, a silver halide emulsion containing an imagewise distribution of developable silver halide grains, and a blocked photographically useful compound comprising a photographically useful group and a blocking group capable of releasing the photographically useful group upon processing the photographic element in the presence of a peroxide, wherein the blocking group comprises an electrophilic group which is solely capable of undergoing a nucleophilic displacement reaction, the electrophilic group being bonded directly or through a releasable timing group to the photographically useful group, with the proviso that when the photographically useful group is a development inhibitor, the blocking group is bonded to the photographically useful group through at least one releasable timing group. The method comprises the step of contacting the photographic element with a processing solution comprising a peroxide.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: July 23, 1996
    Assignee: Eastman Kodak Company
    Inventors: J. Michael Buchanan, Jared B. Mooberry, John Texter
  • Patent number: 5538837
    Abstract: A silver halide color photographic light-sensitive material which causes less fluctuation in the photographic processing activity of a processing solution in continuously processing the light-sensitive material and which has less unevenness in processing and excellent color reproducibility and sharpness. The silver halide color photographic light-sensitive material comprises a support, and provided thereon at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one blue-sensitive emulsion layer, and containing a coupler represented by the following Formula (I) and a coupler represented by the following Formula (II):Formula (I)A.sub.1 -(TIME).sub.a -DIFormula (II)A.sub.2 -(TIME).sub.a -DIwherein A.sub.1 represents a group having an anti-diffusion group and releasing (TIME).sub.a -DI upon a reaction with an oxidation product of an aromatic primary amine developing agent; A.sub.2 represents a group having no anti-diffusion group and releasing (TIME).sub.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: July 23, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Seiji Ichijima, Toshio Kawagishi
  • Patent number: 5538838
    Abstract: The present invention provides a silver halide color photographic material having an excellent color reproducibility and preservability.
    Type: Grant
    Filed: December 7, 1994
    Date of Patent: July 23, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Suga, Junji Nishigaki
  • Patent number: 5529894
    Abstract: Disclosed is a silver halide color photographic material which comprises a support having thereon at least one photosensitive silver halide emulsion layer, a pyrazoloazole based magenta coupler, and a coupler which contains a plurality of photographically useful groups or precursors thereof. The photograhically useful groups or precursors thereof are capable of being released when the coupler undergoes a coupling reaction with the oxidized product of a color developing agnet.
    Type: Grant
    Filed: March 9, 1994
    Date of Patent: June 25, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Atsuhiro Ohkawa
  • Patent number: 5521057
    Abstract: Photographic elements comprising certain 2-phenylcarbamoyl-1-naphthol image-modifying couplers exhibit proper hue, a resistance to dye crystallization, and a resistance to leuco cyan dye formation. Such couplers can be utilized for their image-modifying effect and can contribute substantially to the overall dye density of an image.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: May 28, 1996
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Jerrold N. Poslusny, Ronald E. Leone, David A. Steele
  • Patent number: 5514530
    Abstract: Photographic elements comprising certain 2-phenylcarbamoyl-1-naphthol image-modifying couplers exhibit proper hue, a resistance to dye crystallization, and a resistance to leuco cyan dye formation. Such couplers can be utilized for their image-modifying effect and can contribute substantially to the overall dye density of an image.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: May 7, 1996
    Assignee: Eastman Kodak Company
    Inventors: Paul B. Merkel, Jerrold N. Poslusny, Melvin M. Kestner, Ronald E. Leone, David A. Steele
  • Patent number: 5514529
    Abstract: A light-sensitive material having at least one emulsion layer containing silver halide grains, wherein tabular grains having an average aspect ratio of 2 or more occupy at least 50% of the total projected area of all grains, and the material contains a compound which releases two photographically useful groups from one molecule through a timing group and/or a compound which releases a photographically useful group through two timing groups.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: May 7, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiji Mihayashi, Atsuhiro Ohkawa