And Development Inhibitor Or Development Inhibitor Releasing Agent Patents (Class 430/544)
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Patent number: 5958662Abstract: 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: GrantFiled: March 25, 1997Date of Patent: September 28, 1999Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, David A. Steele, Jerrold N. Poslusny
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Patent number: 5945267Abstract: 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: GrantFiled: July 2, 1997Date of Patent: August 31, 1999Assignee: Konica CorporationInventor: Katsuya Yabuuchi
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Patent number: 5942381Abstract: 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: GrantFiled: June 12, 1997Date of Patent: August 24, 1999Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Ronald E. Leone, Jerrold N. Poslusny
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Patent number: 5939246Abstract: 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: GrantFiled: January 15, 1998Date of Patent: August 17, 1999Assignee: Eastman Kodak CompanyInventors: John C. Brewer, Donald H. Hunger
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Patent number: 5932407Abstract: 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: GrantFiled: April 30, 1997Date of Patent: August 3, 1999Assignee: Eastman Kodak CompanyInventors: William J. Begley, Stephen P. Singer, Allan F. Sowinski
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Patent number: 5912110Abstract: 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: GrantFiled: June 10, 1997Date of Patent: June 15, 1999Assignee: Eastman Kodak CompanyInventors: William James Begley, Teh Hsuan Chen, Frank Dino Coms, Donald Singleton, Jr.
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Patent number: 5837438Abstract: 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: GrantFiled: March 23, 1993Date of Patent: November 17, 1998Assignee: Fuji Photo Film, Co., Ltd.Inventors: Atsuhiro Ohkawa, Keiji Mihayashi
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Patent number: 5834167Abstract: 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: GrantFiled: June 25, 1997Date of Patent: November 10, 1998Assignee: Eastman Kodak CompanyInventors: Barbara B. Lussier, John DiCillo
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Patent number: 5830618Abstract: 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: GrantFiled: August 6, 1996Date of Patent: November 3, 1998Assignee: Fuji Photo Film Co., Ltd.Inventor: Tetsuo Yamaguchi
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Patent number: 5827638Abstract: 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: GrantFiled: March 20, 1997Date of Patent: October 27, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Jiro Tsukahara, Hideaki Satoh, Osamu Uchida, Toshio Kawagishi, Yasufumi Nakai
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Patent number: 5827637Abstract: 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: GrantFiled: March 19, 1997Date of Patent: October 27, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Uchida, Jiro Tsukahara, Toshio Kawagishi, Hideaki Satoh, Yasufumi Nakai
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Patent number: 5821043Abstract: 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: GrantFiled: December 30, 1996Date of Patent: October 13, 1998Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, David A. Steele, Jerrold N. Poslusny
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Patent number: 5780198Abstract: 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: GrantFiled: February 15, 1995Date of Patent: July 14, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Takahiro Goto, Kazunobu Katoh, Minoru Sakai
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Patent number: 5759757Abstract: 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: GrantFiled: October 17, 1996Date of Patent: June 2, 1998Assignee: Eastman Kodak CompanyInventors: William James Begley, Frank D. Coms, Daniel L. Kapp
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Patent number: 5736307Abstract: 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: GrantFiled: April 8, 1996Date of Patent: April 7, 1998Assignee: Imation CorpInventors: Massimo Bertoldi, Antonio Poggi, Enzo Coraluppi
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Patent number: 5719011Abstract: 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: GrantFiled: October 9, 1996Date of Patent: February 17, 1998Assignee: Agfa-Gevaert AGInventor: Erich Wolff
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Patent number: 5719017Abstract: 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: GrantFiled: October 17, 1996Date of Patent: February 17, 1998Assignee: Eastman Kodak CompanyInventors: William James Begley, Frank Dino Coms, Teh-Hsuan Chen, Donald Singleton, Jr.
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Patent number: 5709987Abstract: 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: GrantFiled: October 17, 1996Date of Patent: January 20, 1998Assignee: Eastman Kodak CompanyInventors: William James Begley, Frank D. Coms, Teh-Hsuan Chen
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Patent number: 5702877Abstract: 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: GrantFiled: February 26, 1996Date of Patent: December 30, 1997Assignee: Agfa-Gevaert AGInventors: Heinrich Odenwalder, Hans Langen, Uwe Dahlhaus, Heinz-Dieter Schutz
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Patent number: 5698383Abstract: 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: GrantFiled: December 28, 1995Date of Patent: December 16, 1997Assignee: Eastman Kodak CompanyInventors: Spencer Alan Pugh, Sang Hyung Kim
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Patent number: 5691124Abstract: 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 coType: GrantFiled: December 28, 1995Date of Patent: November 25, 1997Assignee: Eastman Kodak CompanyInventors: Sang Hyung Kim, Spencer Alan Pugh
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Patent number: 5686234Abstract: 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: GrantFiled: January 24, 1996Date of Patent: November 11, 1997Assignee: Eastman Kodak CompanyInventors: William James Begley, Teh Hsuan Chen, Donald Singleton, Jr., Frank Dino Coms
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Patent number: 5674673Abstract: 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: GrantFiled: August 16, 1995Date of Patent: October 7, 1997Assignee: Eastman Kodak CompanyInventors: Jacques Roussilhe, John Martin Higgins
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Patent number: 5670301Abstract: 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: GrantFiled: January 24, 1996Date of Patent: September 23, 1997Assignee: Eastman Kodak CompanyInventors: William James Begley, Teh Hsuan Chen, Frank Dino Coms, Donald Singleton, Jr.
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Patent number: 5670306Abstract: 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: GrantFiled: October 15, 1996Date of Patent: September 23, 1997Assignee: Eastman Kodak CompanyInventors: Jerrold Neal Poslusny, Lawrence G. Anderson, Jared Ben Mooberry, Wojciech Kazimierz Slusarek, Zheng Zi Wu
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Patent number: 5660975Abstract: 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: GrantFiled: September 12, 1996Date of Patent: August 26, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Takayuki Ito, Naoto Matsuda
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Patent number: 5641613Abstract: 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: GrantFiled: January 25, 1996Date of Patent: June 24, 1997Assignee: Eastman Kodak CompanyInventors: Jane Sarah Boff, Stephen Paul Singer
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Patent number: 5630927Abstract: 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: GrantFiled: April 8, 1994Date of Patent: May 20, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshio Kawagishi, Kensuke Morita, Yoshio Ishii, Keiji Mihayashi
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Patent number: 5631125Abstract: 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: GrantFiled: February 29, 1996Date of Patent: May 20, 1997Assignee: Agfa-Gevaert, N.V.Inventors: Jean-Marie Dewanckele, Johan Loccufier, Pierre De Clercq, Dirk Van Haver, Noel Hosten
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Patent number: 5616446Abstract: 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: GrantFiled: September 26, 1995Date of Patent: April 1, 1997Assignee: Konica CorporationInventors: Norio Miura, Tawara Komamura, Seiji Hidaka, Takeo Arai
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Patent number: 5609999Abstract: 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: GrantFiled: September 7, 1995Date of Patent: March 11, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Shunichi Aida, Keisuke Matsumoto, Toshiyuki Watanabe, Koji Wariishi
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Patent number: 5599656Abstract: 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: GrantFiled: August 6, 1990Date of Patent: February 4, 1997Assignee: Eastman Kodak CompanyInventors: Drake M. Michno, Richard P. Szajewski, Stephen P. Singer
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Patent number: 5597683Abstract: 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: GrantFiled: May 26, 1994Date of Patent: January 28, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Minoru Uchida, Shunichi Tomita, Toshio Kawagishi
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Patent number: 5594047Abstract: 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: GrantFiled: February 17, 1995Date of Patent: January 14, 1997Assignee: Eastman Kodak CompanyInventors: Ralph B. Nielsen, Thomas A. Rosiek, David F. Bates, James S. Honan, Hwei-Ling Yau
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Patent number: 5576158Abstract: 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: GrantFiled: September 26, 1994Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: Frederick E. Ford, Arlyce T. Bowne, Carl Kotlarchik, Jr.
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Patent number: 5576167Abstract: 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: GrantFiled: December 30, 1994Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: Jerrold N. Poslusny, Lawrence G. Anderson, Jared B. Mooberry, Zheng Z. Wu
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Patent number: 5571661Abstract: 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: GrantFiled: June 6, 1995Date of Patent: November 5, 1996Assignee: Konica CorporationInventors: Osamu Ishige, Takesi Nakamura, Naoki Sato, Yutaka Kaneko
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Patent number: 5567577Abstract: 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: GrantFiled: October 5, 1995Date of Patent: October 22, 1996Assignee: Eastman Kodak CompanyInventors: Thomas R. Welter, David A. Dickinson, Keath T. Chen
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Patent number: 5547818Abstract: 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: GrantFiled: November 1, 1994Date of Patent: August 20, 1996Assignee: Agfa Gevaert AGInventors: Otto Lapp, Arno Schmuck, Wolfgang Schmidt, J org Siegel
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Patent number: 5547824Abstract: 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: GrantFiled: July 7, 1992Date of Patent: August 20, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Atsuhiro Ohkawa
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Patent number: 5545513Abstract: 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: GrantFiled: June 11, 1993Date of Patent: August 13, 1996Assignee: Eastman Kodak CompanyInventor: Larry D. Edwards
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Patent number: 5543279Abstract: 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: GrantFiled: April 14, 1994Date of Patent: August 6, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoto Matsuda, Makoto Yamada, Michio Ono, Yasuhiro Ishiwata, Osamu Uchida
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Patent number: 5541050Abstract: 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: GrantFiled: August 10, 1994Date of Patent: July 30, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Mikio Ihama
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Patent number: 5538834Abstract: 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: GrantFiled: November 21, 1994Date of Patent: July 23, 1996Assignee: Eastman Kodak CompanyInventors: J. Michael Buchanan, Jared B. Mooberry, John Texter
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Patent number: 5538837Abstract: 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: GrantFiled: October 14, 1994Date of Patent: July 23, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Seiji Ichijima, Toshio Kawagishi
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Patent number: 5538838Abstract: The present invention provides a silver halide color photographic material having an excellent color reproducibility and preservability.Type: GrantFiled: December 7, 1994Date of Patent: July 23, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoichi Suga, Junji Nishigaki
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Patent number: 5529894Abstract: 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: GrantFiled: March 9, 1994Date of Patent: June 25, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Atsuhiro Ohkawa
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Patent number: 5521057Abstract: 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: GrantFiled: July 28, 1993Date of Patent: May 28, 1996Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Jerrold N. Poslusny, Ronald E. Leone, David A. Steele
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Patent number: 5514530Abstract: 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: GrantFiled: July 28, 1993Date of Patent: May 7, 1996Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Jerrold N. Poslusny, Melvin M. Kestner, Ronald E. Leone, David A. Steele
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Patent number: 5514529Abstract: 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: GrantFiled: June 30, 1992Date of Patent: May 7, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Atsuhiro Ohkawa