Identified Magenta Dye Color Patents (Class 430/386)
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Patent number: 7632632Abstract: Silver halide color photographic elements having multiple color imaging layers contain a permanent, pre-formed magenta dye that is present in an amount to provide a status M green density greater than 0.005 per mg/m2. This dye provides minimum density at lower cost and enables lower dye levels and a reduced organic load that may lead to improved film physical properties.Type: GrantFiled: June 27, 2008Date of Patent: December 15, 2009Assignee: Eastman Kodak CompanyInventors: Paul L. Zengerle, John W. Harder, Drake M. Michno, James H. Reynolds, Steven P. Szatynski
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Patent number: 7060424Abstract: A method of increasing speed of a silver halide color photosensitive material. The photosensitive material has, on a support, a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, a red-sensitive silver halide emulsion layer, and a nonsensitive layer. The method comprises adding, to the emulsion layer or the nonsensitive layer, a compound represented by formula (M) or (C): in the formula (M), R1 represents H or a substituent, Z represents a group of non-metallic atoms required to form a 5-membered azole ring containing 2 to 4 nitrogen atoms, and X represents H or a substituent, and in the formula (C), Za represents —NH— or —CH(R3)—, Zb and Zc represent —C(R4)? or —N?, R1, R2 and R3 represent an electron attractive group having a Hammett constant ?p of 0.2 to 1.0, R4 represents H or substituent, and X represents H or a substituent.Type: GrantFiled: November 22, 2002Date of Patent: June 13, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Junichiro Hosokawa, Yasuhiro Shimada, Osamu Uchida, Yasuhiro Ishiwata, Toshio Kawagishi
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Patent number: 6852480Abstract: Disclosed is a photographic element comprising a light sensitive silver halide emulsion layer and, having associated with that layer a 1H-pyrazolo[1,5-b]-1,2,4-triazole dye forming coupler having a fully substituted carbon atom at the 6-position, a chloro group at the 7-position, and, at the 2-position, a phenyl ring substituted in the meta position with a carbonamido substituent containing an ?-sulfone moiety. Photographic elements containing these couplers exhibit desirable bleach-fix and activity characteristics.Type: GrantFiled: December 18, 2003Date of Patent: February 8, 2005Assignee: Eastman Kodak CompanyInventors: Robert F. Romanet, Frank D. Coms, Susan M. Fischer
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Publication number: 20040038158Abstract: An image forming method including a step of imagewise exposing a silver halide color photographic photosensitive material having, on a support, photographic constituent layers including at least one blue sensitive silver halide emulsion layer, at least one green sensitive silver halide emulsion layer, at least one red sensitive silver halide emulsion layer, and at least one non-photosensitive hydrophilic colloid layer, a color developing step, a bleach-fixing step and a rinsing step. At least one of the at least one red sensitive silver halide emulsion layer contains at least one compound represented by the following general formula (IA) and/or at least one coupler represented by the following general formulae (PTA-I) and (PTA-II).Type: ApplicationFiled: April 23, 2003Publication date: February 26, 2004Applicant: FUJI PHOTO FILM CO., LTD.Inventors: Shin Soejima, Kentaro Okazaki
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Patent number: 6620562Abstract: The present invention is directed to a method of scanning silver-halide-containing color photographic and photothermographic film. In particular, the present invention comprises a photographic element comprising at least one infrared imaging dye-forming agent in a blue-sensitive color layer of the element, thereby forming at least one image record in the infrared region of the imagewise exposed and developed element. This expedient leads to the formation of high quality images when scanning photographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed.Type: GrantFiled: August 13, 2001Date of Patent: September 16, 2003Assignee: Eastman Kodak CompanyInventors: James H. Reynolds, David H. Levy, Robert W. Kulpinski, Leif P. Olson, Wojciech K. Slusarek
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Patent number: 6514679Abstract: Disclosed is a photographic element comprising a silver halide emulsion and a peptoid-containing azole dye-forming coupler.Type: GrantFiled: December 12, 2001Date of Patent: February 4, 2003Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Robert J. Niger, Richard P. Dunlap, William J. Sonnefeld, Hans F. Schmitthenner
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Publication number: 20020076661Abstract: The present invention provides a system of a digital color proof in which consistent images are obtained while minimizing density variation in spite of various variations of conditions due to the use of a silver halide light-sensitive color material, specifically, the present invention provides a method for forming proof images similar to printed images in terms of various characteristics such as the paper quality of silver halide light-sensitive materials, the dot gain, and the density.Type: ApplicationFiled: September 20, 2001Publication date: June 20, 2002Applicant: KONICA CORPORATIONInventors: Tomonori Kawamura, Shigeo Tanaka, Satoshi Nishino, Hirohide Ito, Naohito Naraoka, Naoyo Suzuki, Shinya Watanabe, Masataka Takimoto, Hideaki Sakata, Junichi Tanabe, Tetsuya Taniguchi, Naoki Nozaki, Yasushi Okubo, Koji Daifuku, Katsuji Kondo, Toshitsugu Suzuki
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Patent number: 6391533Abstract: A silver halide color photosensitive material comprising each at least one blue-, green-, and red-sensitive emulsion layer on a support.Type: GrantFiled: July 3, 2001Date of Patent: May 21, 2002Assignee: Fuji Photo Film Co., Ltd.Inventors: Hisashi Mikoshiba, Yoshio Shimura, Naoto Matsuda
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Publication number: 20020025497Abstract: A silver halide color photographic light-sensitive material has a red-, green-, and blue-sensitive emulsion layer in this order from the side closest to a support.Type: ApplicationFiled: July 6, 2001Publication date: February 28, 2002Inventors: Naoto Matsuda, Hisashi Mikoshiba
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Patent number: 6296997Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a bicyclic azole dye-forming coupler compound having Formula I: wherein: BA represents a bicyclic azole coupler nucleus with —(C(R1)(R2))P— bonded to a ring carbon in a non-coupling position of the coupler nucleus; p is 1 or 2, and each R1 and R2 is independently selected from H and a substituent group, provided that any two of R1 and R2 may join to form a ring; Ra and Rb are each independently selected from H and a substituent group, provided that substituent groups may join to form a ring; each Y is an independently selected substituent and m is 0-4; X is selected from the group consisting of —C(O)—, —S(O)2—, —S(O)—, and —P(O)(OH)—; W is a connecting group having a chain of up to four atoms between X and Z, and n=0 or 1; and a) when n=0, Z is —NHR5 where R5 is H or a substituent, andType: GrantFiled: November 7, 2000Date of Patent: October 2, 2001Assignee: Eastman Kodak CompanyInventors: Robert F. Romanet, William B. Vreeland, John W. Harder, Christopher T. Brown, Scott R. Conley, Michael P. Youngblood
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Patent number: 6291152Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a bicyclic azole dye-forming coupler, having appended to a ring carbon at a non-coupling position thereof a substituent group represented by the formula: wherein the arrow represents the point of attachment of the substituent group to a non-coupling position of the coupler; R1, R2, R3 and R4 are independently selected hydrogen or substituent groups, provided that any two of R1, R2, R3 and R4 may join to form a ring; Ra and Rb are independently hydrogen or a substituent; each Rc and Rd is an independently selected hydrogen or an alkyl or aryl group, provided that any two of them may join to form a ring and n is 1 to 10; Re is hydrogen or an alkyl or aryl group; each Y is an independently selected substituent group and m is from 0 to 4; and Z is a substituent selected from the group consisting of —C(O)R5, —S(O)2R5, —SOR5, —P(═O)(R6)2 and &Type: GrantFiled: November 7, 2000Date of Patent: September 18, 2001Assignee: Eastman Kodak CompanyInventors: Paul A. Burns, Robert F. Romanet, Susan M. Fischer, David G. Lincoln, Paul P. Spara
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Patent number: 6143485Abstract: A color photographic film or paper comprises at least one silver halide emulsion layer having associated therewith a dye-forming coupler compound of the formula ##STR1## wherein: one of Z.sub.a and Z.sub.b is --N=and the other is ##STR2## to which ring "A" is directly attached; R.sup.0 represents hydrogen or a substituent;R.sup.1, R.sup.2, R.sup.3, and R.sup.4 independently represent hydrogen or substituents, provided that any two R.sup.1 groups, any two R.sup.4 groups or R.sup.2 and R.sup.3 may form a ring;L represents a divalent linking group;B represents a substituted or unsubstituted sulfonamido or sulfamoyl group;D represents a substituted or unsubstituted alkyl, aryl carbocyclic or heterocyclic group;X represents hydrogen or a coupling-off group;p and m represent integers from 0 to 4; andn represents 0 or 1.Type: GrantFiled: December 23, 1998Date of Patent: November 7, 2000Assignee: Eastman Kodak CompanyInventors: Ping-Wah Tang, Stanley W. Cowan
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Patent number: 6140033Abstract: A photographic element comprises novel pyrazolo[5,1-c]-1,2,4-triazole dye forming couplers, the couplers and azomethine dyes. The couplers are represented by the following structure: ##STR1## wherein: Z represents the elements of C, N, O, or S necessary to complete a substituted or unsubstituted heterocyclic 5 or 6 member ring along with nitrogen;R.sub.1 represents a substituent group;and, X represents a hydrogen or a coupling off group.Type: GrantFiled: December 22, 1998Date of Patent: October 31, 2000Assignee: Eastman Kodak CompanyInventors: Donald R. Diehl, Mbiya Kapiamba, Stanley W. Cowan
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Patent number: 6037113Abstract: Disclosed is a photographic element comprising a light sensitive silver halide emulsion layer having in association therewith at least one dye- forming coupler of Formula (1a): ##STR1## wherein: R.sub.1 is an alpha-branched alkyl group with greater than 10 carbon atoms;R.sub.5, R.sub.6, R.sub.7, and R.sub.8 are each independently a hydrogen atom or a substituent;Z is a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color developing agent.The element exhibits improved dye light stability.Type: GrantFiled: August 14, 1998Date of Patent: March 14, 2000Assignee: Eastman Kodak CompanyInventors: Leslie Shuttleworth, Rakesh Jain, John W. Harder
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Patent number: 6015657Abstract: A photographic element contains at least one photosensitive silver halide emulsion layer having associated therewith a 5-pyrazolone photographic coupler represented by the formula: ##STR1## wherein substituents X.sub.1, X.sub.2, Y, G.sub.1, G.sub.2, G.sub.3, Z, and R.sub.1 may be as specified in the specification; a, b, and c are individually integers form 0 to 3 provided that "a" cannot be an integer which, combined with the selection of X.sub.1 and X.sub.2, allows the number of chloride substituents on the ring containing G.sub.1 to exceed 3; and the sum of the Hammett's sigma values for X.sub.1, X.sub.2, Y, G.sub.1, G.sub.2, and G.sub.3 is at least 1.3.Type: GrantFiled: January 10, 1994Date of Patent: January 18, 2000Assignee: Eastman Kodak CompanyInventors: Sundram Krishnamurthy, Michael William Crawley, David Scott Bailey, John Lawrence Pawlak
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Patent number: 5834164Abstract: An image forming method is disclosed, comprising exposing a silver halide photographic light sensitive material comprising a support having thereon a silver halide emulsion layer containing a dye forming coupler and processing the exposed photographic material, wherein the coupler has, in its molecule, at least two sites capable of chelating with a metal ion to form a 5-membered or 6-membered chelate ring, thereby forming, together with a developing agent and the metal ion, a chelate dye.Type: GrantFiled: May 10, 1996Date of Patent: November 10, 1998Assignee: Konica CorporationInventors: Noritaka Nakayama, Tatsuo Tanaka, Shigeto Hirabayashi
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Patent number: 5736303Abstract: The invention relates to a photographic element comprising at least one layer comprising at least one substituted hydroquinone and adjacent said at least one layer comprising substituted hydroquinone, at least one layer comprising coupler Magenta-1 ##STR1## wherein R.sub.a and R.sub.b independently represent H or a substituent; R.sub.c is a substituent; X is hydrogen or a coupling-off group; and Z.sub.a, Z.sub.b, and Z.sub.c are independently a substituted methine group, .dbd.N--, .dbd.C--, or --NH--, provided that one of either the Z.sub.a --Z.sub.b bond or the Z.sub.b --Z.sub.c bond is a double bond and the other is a single bond, and when the Z.sub.b --Z.sub.c bond is a carbon-carbon double bond, it may form part of an aromatic ring, and at least one of Z.sub.a, Z.sub.b, and Z.sub.c represents a methine group connected to the group R.sub.b, wherein the ratio of gelatin to organic component in said layer comprising magenta 1 is greater than 1.Type: GrantFiled: June 7, 1996Date of Patent: April 7, 1998Assignee: Eastman Kodak CompanyInventors: Gary John McSweeney, Alphonse Dominic Camp, Vincent James Flow
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Patent number: 5698386Abstract: The invention provides a photographic light sensitive silver halide emulsion layer having associated therewith a pyrazolotriazole dye-forming coupler having the formula: ##STR1## wherein: R.sub.1 is a substituent bonded to the pyrazolotriazole nucleus by a fully substituted carbon atom;X is hydrogen or a coupling-off group;R.sub.2, R.sub.3, R.sub.4, and R.sub.6 are independently hydrogen or substituent groups;R.sub.5 is selected from the group consisting of alkyl, alkoxy, aryl, and aryloxy groups;R.sub.7 is an alkyl group; andY is a substituent group where m is 0 to 4.The invention also provides a coupler compound, a photographic element containing the emulsion layer of the invention, and an imaging process.Type: GrantFiled: February 29, 1996Date of Patent: December 16, 1997Assignee: Eastman Kodak CompanyInventors: Ping Wah Tang, David Joseph Decker, Susan Marie Fischer, Stanley Wray Cowan
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Patent number: 5672465Abstract: Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during diagnostic or X-ray therapy, the resulting image can be permanently dry fixed by a short heating step and then stored for a long period. Processes for making the film, new binder-convertor systems, and a device incorporating the film are described as well as other imaging, diagnostic and therapeutic methods utilizing the film in high energy radiation applications in the health care field.Type: GrantFiled: January 9, 1995Date of Patent: September 30, 1997Assignee: JP Laboratories, Inc.Inventors: Gordhanbhai N. Patel, Yao-Ming Cheng, Subhash H. Patel
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Patent number: 5670302Abstract: A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith a magenta coupler represented by formula (I): ##STR1## wherein: R.sub.1 represents a hydrogen atom or an alkyl group;R.sub.2 represents an alkyl group;Ar represents a phenyl or naphthyl group;X represents a substituent and "n" represents an integer of from 1 to 5; andZ represents a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color developing agent.The described naphtholic coupler provides a magenta dye image rather than the cyan dye image common to naphtholic couplers.Type: GrantFiled: June 16, 1996Date of Patent: September 23, 1997Assignee: Eastman Kodak CompanyInventors: Philip T. S. Lau, Louis Joseph Rossi, Stanley Wray Cowan
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Patent number: 5667946Abstract: The invention provides a light sensitive photographic silver halide emulsion layer having associated therewith a magenta coupler having formula I: ##STR1## wherein: R represents a ballasted monosubstituted amino group which enables the coupler to form, upon development with 4-amino-3-methyl-N-ethyl-N-(2-hydroxyethyl)aniline sulfate developing agent, a magenta dye having a wavelength of maximum absorbance of 545 nm or greater; andX represents hydrogen or a coupling-off group. The resulting dye has an improved spectral absorption curve.Type: GrantFiled: April 30, 1996Date of Patent: September 16, 1997Assignee: Eastman Kodak CompanyInventors: Jane Sarah Boff, Bernard Arthur Clark, Paul Louis Stanley, Christina Mary Watts, Stephen Paul Singer
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Patent number: 5645981Abstract: Novel pyrazolotriazole dye-forming couplers contain an aliphatic or aromatic aryl ballast group and having one carboxy or sulfonic group on the ballast group enabling the pyrazolotriazole to have increased activity and having an ether (--O--) group or group A bonded directly to a carbon atom or arylene group that is bonded directly to the pyrazolotriazole nucleus and wherein the pyrazolotriazole is capable of forming an immobile dye in a gelatino silver halide emulsion and is free of coupling-off groups that reduce silver. When the ballast group is bonded to the pyrazoloazole nucleus by means of an aromatic group, the aromatic group is ortho substituted. Group A is ##STR1## --S--, --SO--, --SO.sub.3 --, or --OSO.sub.2 --. The ether group or group A enables the dye formed to have desired hue. These couplers are useful in photographic silver halide materials and processes.Type: GrantFiled: April 6, 1994Date of Patent: July 8, 1997Assignee: Eastman Kodak CompanyInventors: Robert Fogg Romanet, Arlyce Tolman Bowne, Sharon Eileen Normandin
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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: 5609996Abstract: A photographic light sensitive silver halide emulsion layer has associated therewith a pyrazoloazole dye-forming coupler having the formula: ##STR1## wherein: R.sup.1 is a substituent bonded to the pyrazolotriazole nucleus by a fully substituted carbon atom;X is hydrogen or a coupling-off group;L is a divalent linking group;R.sup.2, R.sup.3, and R.sup.4 are independently hydrogen or substituent groups; andZ.sub.a, Z.sub.b, and Z.sub.c are independently --C(R')(R")--, .dbd.N--, .dbd.C(R')--, or --NH--, wherein R', and R" are independently H or a substituent, provided that one of either the Z.sub.a --Z.sub.b or the Z.sub.b --Z.sub.c bond is a double bond and the other is a single bond, and provided that when the Z.sub.b --Z.sub.c bond is a double bond, it may form part of a fused ring.Type: GrantFiled: February 29, 1996Date of Patent: March 11, 1997Assignee: Eastman Kodak CompanyInventors: Ping W. Tang, Stanley W. Cowan, David J. Decker, Terrence C. Mungal
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Patent number: 5607819Abstract: There is disclosed a color developer and a method for processing a silver halide color photographic material using said color developer. The color developer comprises a thiourea compound represented by the formula (I): ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted cycloalkylene group, provided that two or more of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 each do not represent a hydrogen atom at the same time; at least one pair of R.sub.1 and R.sub.3, and R.sub.2 and R.sub.4, together may bond to form a nitrogen-containing heterocyclic ring; or at least one pair of R.sub.1 and R.sub.2, and R.sub.3 and R.sub.4, together may bond to form a ring.Type: GrantFiled: October 14, 1994Date of Patent: March 4, 1997Assignee: Fuji Photo Film Co., Ltd.Inventor: Takatoshi Ishikawa
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Patent number: 5576150Abstract: The invention provides a photographic light sensitive silver halide emulsion layer having associated therewith a pyrazolotriazole dye-forming coupler having formula: ##STR1## wherein: R.sub.1 is a substituent bonded to the pyrazolotriazole nucleus by a fully substituted carbon atom;X is hydrogen or a coupling-off group;R.sub.2, R.sub.3, R.sub.4, and R.sub.6 are independently hydrogen or substituent groups;q is from 1 to 3;R.sub.5 and R.sub.7 are independently alkyl, alkoxy, aryl, or aryloxy groups;G is a substituent group and n is from 0 to 3; andY is a substituent group and m is 0 to 4.The invention also provides a coupler compound, a photographic element containing the emulsion layer of the invention, and an imaging process.Type: GrantFiled: February 29, 1996Date of Patent: November 19, 1996Assignee: Eastman Kodak CompanyInventors: Ping W. Tang, Stanley W. Cowan, David J. Decker, Daniel E. Corcoran
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Patent number: 5561040Abstract: There is provided a method for forming an image, which comprises processing a silver halide color photographic material that has a high-silver-chloride silver halide emulsion and which contains in the photographic material a nitrogen-containing heterocyclic compound, the solubility product of which for the silver salt is in a limited range, with a color developer containing chloride ions and bromide ions in a limited concentration, respectively. The method is excellent in forming an image that can be performed rapidly, and is high in sensitivity, in prevention of processing color-mixing, and in less fluctuation of the photographic quality involved in continuous processing.Type: GrantFiled: May 26, 1995Date of Patent: October 1, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Kawai, Shigeaki Ohtani
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Patent number: 5541040Abstract: Disclosed is a positive type color light sensitive material comprising a support having thereon a mainly yellow image forming layer, a mainly magenta image forming layer and a mainly cyan image forming layer;wherein, when an exposure quantity-gives minimum density of +0.2 on a first layer selected from said three layer after developing in the main spectra sensitivity region of the first layer, a second layer selected from said three layers is given lower density with said exposure than a density without said exposure.The positive type color light sensitive material is capable of providing a color proof improved in the approximation degrees of an image quality to a printed printer.Type: GrantFiled: January 25, 1995Date of Patent: July 30, 1996Assignee: Konica CorporationInventors: Susumu Okawauchi, Yasuo Tosaka, Yoshiyuki Nonaka, Keiichi Hoshino
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Patent number: 5538842Abstract: There is disclosed a silver halide color photographic light-sensitive material which excels in a color reproduction and a light fastness at a low density part through a high density part and which is improved in a Y-stain at a background part. The silver halide color photographic light-sensitive material comprises a support and provided thereon at least one photographic constitutional layer, wherein at least one layer of the above photographic constitutional layers contains at least one of the compounds represented by the following Formula (I) and a compound represented by the following Formula (II) in the same layer: ##STR1## wherein R represents a hydrogen atom or a substituent; Z.sub.a, Z.sub.b, and Z.sub.c each represent any group of methine, substituted methine, .dbd.N--, or --NH--; Y represents a hydrogen atom or a group capable of splitting off upon a coupling reaction with an oxidation product of a developing agent; provided that a dimer or a polymer may be formed via R, Y, or Z.sub.a, Z.sub.b or Z.Type: GrantFiled: June 30, 1994Date of Patent: July 23, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Takehiko Sato
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Patent number: 5536625Abstract: This invention provides an accelerator for peracid bleaches used for bleaching silver halide photographic elements. The accelerator is a complex of ferric (Fe III) ion and a 2-pyridinecarboxylic acid or a 2,6-pyridinecarboxylic acid. The accelerator may be contained in the bleaching solution, a solution preceding the bleaching solution or in the photographic elements themselves.Type: GrantFiled: March 20, 1995Date of Patent: July 16, 1996Assignee: Eastman Kodak CompanyInventors: John M. Buchanan, Stuart T. Gordon, Keith H. Stephen, Richard P. Szajewski, Sidney J. Bertucci
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Patent number: 5512103Abstract: The invention provides a cyan color producing silver halide emulsion layer or a magenta color producing silver halide emulsion layer wherein said at least one layer has an exposure range of at least 0.6 log E from the point where the instantaneous contrast is 1.0 and wherein the instantaneous contrast of said layer increases as a function of increasing exposure over at least 70 percent of said exposure range.Type: GrantFiled: January 19, 1995Date of Patent: April 30, 1996Assignee: Eastman Kodak CompanyInventors: James L. Edwards, Eric L. Bell, Benjamin T. Chen, Richard L. Parton
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Patent number: 5508421Abstract: A pyrrolotriazole azomethine dye represented by formula (I), (II) or (IV) is disclosed: ##STR1## Also, a heat transfer dye providing material is disclosed, in which the material includes a support having thereon a dye providing layer containing a heat migrating dye, with the dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any of the above formulae (I), (II) and (IV).Type: GrantFiled: July 22, 1994Date of Patent: April 16, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Suzuki, Hisashi Mikoshiba, Seiiti Kubodera, Osamu Takahashi, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
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Patent number: 5491049Abstract: The present invention provides a photographic element comprising a support, at least one photosensitive silver halide layer and in or adjacent said silver halide layer a colour coupler of one of the general formulas: ##STR1## wherein R.sup.1 is a subsituted or unsubstituted aryl or a subsituted or unsubstituted heterocylic group,R.sup.2 is a subsituted or unsubstituted, saturated or unsaturated, primary or secondary alkyl group in which the carbon atom which joins R.sup.2 to rest of the coupler has at least one fluorine atom attached to it,R.sup.3 is an electron-withdrawing group, andX is H or a coupling-off group,and wherein the electron-withdrawing properties of R.sup.1 are such that the dye formed on coupling with oxidised colour developing agent 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine has a .lambda..sub.max of from 537 to 570 nm.The invention also includes the coupler composition, methods of synthesizing the coupler and a method of forming an image in a photographic element.Type: GrantFiled: May 4, 1994Date of Patent: February 13, 1996Assignee: Eastman Kodak CompanyInventor: Philip A. Allway
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Patent number: 5482821Abstract: The invention provides a photographic process and element where the element comprises a light sensitive silver halide layer containing (1) an image dye-forming bicyclic azole coupler having bonded to the coupling site a group other than hydrogen which is clearable during the development process; (2) an azopyrazolone masking coupler; and (3) a stabilizing coupler having bonded to the coupling site only hydrogen atoms and/or carbon atoms which are not cleavable to permit dye formation during development.Type: GrantFiled: September 30, 1993Date of Patent: January 9, 1996Assignee: Eastman Kodak CompanyInventors: Daniel L. Kapp, Janet N. Younathan
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Patent number: 5470696Abstract: A photographic element comprising a support, at least one photosensitive silver halide layer and associated therewith a color coupler of the general formula (1) or (2): ##STR1## wherein A and B represent the same or different electron-withdrawing group,X is H or a group which splits off on coupling with oxidized color developer,R is an alkyl, cycloalkyl, aryl or heterocyclic which may be substituted, --COR.sup.1, --CSR.sup.1, SOR.sup.1, SO.sub.2 R.sup.1, --NHCOR.sup.1, --CONHR.sup.1, --COOR.sup.1, --COSR.sup.1, --NHSO.sub.2 R.sup.1 wherein R.sup.1 is an alkyl, cycloalkyl, or aryl group any of which are optionally substituted,and wherein two or more of A, B, R, and X optionally form part of a ring,Link is a linking group andn is 0, 1 or 2.Type: GrantFiled: June 1, 1993Date of Patent: November 28, 1995Assignee: Eastman Kodak CompanyInventor: Hugh M. Williamson
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Patent number: 5462848Abstract: Color photographic materials comprise a support bearing a silver halide emulsion and a coupler composition. The coupler composition comprises a two-equivalent pyrazolone magenta dye-forming coupler, a ballasted carbonamide compound, and a developer inhibitor-releasing coupler. The carbonamide compound reduces continued coupling of the pyrazolone magenta dye-forming coupler during the bleach step in a color photographic process without altering the advantageous properties provided by the combination of the two-equivalent pyrazolone magenta dye-forming coupler and the developer inhibitor-releasing coupler.Type: GrantFiled: June 10, 1993Date of Patent: October 31, 1995Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Stephen P. Singer
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Patent number: 5460924Abstract: This invention provides an accelerator for peracid bleaches used for bleaching silver halide photographic elements. The accelerator is a complex of ferric (Fe III) ion and a 2-pyridinecarboxylic acid or a 2,6-pyridinecarboxylic acid. The accelerator may be contained in the bleaching solution, a solution preceding the bleaching solution or in the photographic elements themselves.Type: GrantFiled: April 20, 1994Date of Patent: October 24, 1995Assignee: Eastman Kodak CompanyInventors: John M. Buchanan, Stuart T. Gordon, Keith H. Stephen, Richard P. Szajewski, Sidney J. Bertucci
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Patent number: 5460927Abstract: The invention provides a novel and economic method for the production of an activated propene from a malonitrile dimer which comprises reacting a compound of the formula (I) ##STR1## with a nucleophile D to provide a compound of the formula (II) ##STR2## wherein substituents A, B and E each individually represent hydrogen, a substituted or unsubstituted alkyl acyl carboxyl or aryl group or an electron withdrawing group, and X is a group capable of displacement via a substitution reaction.Type: GrantFiled: January 3, 1994Date of Patent: October 24, 1995Assignee: Eastman Kodak CompanyInventor: Hugh M. Williamson
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Patent number: 5457020Abstract: Novel bicyclic pyrazolo couplers containing a ballast group of formula (I): ##STR1## are useful in photographic materials and processes. The couplers exhibit increased coupling activity, and provide formation of dyes having improved maximum magenta image dye density, hue, and dye light stability when employed in color photographic materials and processes.Type: GrantFiled: December 18, 1992Date of Patent: October 10, 1995Assignee: Eastman Kodak CompanyInventors: Philip T. S. Lau, Ping W. Tang, Stanley W. Cowan
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Patent number: 5457007Abstract: The image forming process of the present invention includes subjecting a photosensitive material having at least one dye-forming layer for each of the three primary colors on a support to scanning exposure using light sources modulated in accordance with the image data, thereby reproducing a full color image of quality in which delicate shades in a high density color developed portion of high purity are reproduced stably.Type: GrantFiled: July 13, 1994Date of Patent: October 10, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Masahiro Asami
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Patent number: 5451501Abstract: A 1H-pyrazolo[1,5-b][1,2,4]triazole magenta coupler having a t-alkyl group at the position-6 and an amido group-substituted phenyl group at the position-2 is disclosed. There is also disclosed a silver halide color photographic material containing the same.Type: GrantFiled: May 26, 1993Date of Patent: September 19, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuki Mizukawa, Masuji Motoki, Tadahisa Sato, Osamu Takahashi
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Patent number: 5445926Abstract: Disclosed is a method for processing color photographic materials having a layer structure in which a cyan color-forming layer is disposed on the upper side of a pyrazoloazole type magenta coupler-containing magenta color-forming layer. A layer which does not contain any hydroquinones but contains a ultraviolet absorbent is provided above the cyan coupler-containing silver halide emulsion layer having a high chloride content, while below the cyan coupler-containing emulsion layer is provided another layer containing hydroquinones but not containing any ultraviolet absorbent. These materials are processed rapidly with a color developer under a reduced replenishment condition, wherein the amount of a color developer replenished is controlled to below 120 ml/m.sup.2, to provide color images fast to light and free from bluish unevenness in the edge part thereof.Type: GrantFiled: October 23, 1992Date of Patent: August 29, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazunori Hasebe
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Patent number: 5443945Abstract: The invention provides novel photographic compositions comprising a propene isomer of the formula ##STR1## wherein A B or E, each individually represent hydrogen, or an electron withdrawing group, selected for example from --CN, --NO.sub.2, --SO.sub.2 R, --SO.sub.2 NH--, --CO.sub.2 R, --COR, --CONHR, --CONHAr, --CF.sub.3 halogen, amino, aryl, aralkyl, alkyl, cycloalkyl, alkyl (carbonyl)oxy, aryl (carbonyl)oxy, carboxy, alkoxycarbonyl, aryloxycarbonyl, carbamomyl, acyl, alkylaminocarbonyl, arylaminocarbonyl, alkoxycarbonylamino, acylamino, ureido, alkylsulphonylamino, arylsulphonylamino, sulphamoylamino, alkylsulphonyl, arylsulphonyl, sulphamoyl, imido, alkylthio, arylthio and heterocycles; the invention also provides a propene isomer of the formula I wherein D represents a group of the formula Ar--L--wherein Ar is a phenyl group optionally substituted with one or more substituents, and --L-- is a linking group incorporating a lone pair of electrons; and A, B, E and X are defined as R is above defined.Type: GrantFiled: May 19, 1993Date of Patent: August 22, 1995Assignee: Eastman Kodak CompanyInventor: Hugh M. Williamson
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Patent number: 5429913Abstract: Photographic coupler compositions comprise a magenta dye-forming coupler and an alcohol in an amount sufficient to increase the activity of the dye-forming coupler. The alcohol is of the formula ##STR1## wherein R.sub.1 is selected from the group consisting of (a) unsubstituted alkyl and alkenyl groups, (b) alkyl groups containing one or more substitutents selected from the group consisting of aryl groups, alkenyl groups, halogen atoms, alkoxy groups, alkoxy carbonyl groups and acyloxy groups, (c) unsubstituted aryl groups and (d) aryl groups containing one or more substituents selected from the group consisting of alkyl groups, alkoxy groups, alkoxy carbonyl groups and acyloxy groups; and R.sub.2 and R.sub.3 are individually selected from hydrogen and the group of moieties from which R is selected, provided that the total number of carbon atoms contained in R.sub.1, R.sub.2 and R.sub.3 is at least 10.Type: GrantFiled: August 30, 1993Date of Patent: July 4, 1995Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Edward Schofield
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Patent number: 5420000Abstract: Described is a radiation sensitive imaging film containing a heat fixable radiation sensitive element, e.g., a diacetylene, of the formula: R--C.tbd.C--C.tbd.C--R', where R and R' are, e.g., both --CH.sub.2 --O--CONH--(CH.sub.2).sub.5 CH.sub.3. After exposure to X-radiation during diagnostic or X-ray therapy, the resulting image can be permanently dry fixed by a short heating step and then stored for a long period. Processes for making the film, new binder-convertor systems, and a device incorporating the film are described as well as other imaging, diagnostic and therapeutic methods utilizing the film in high energy radiation applications in the health care field.Type: GrantFiled: August 12, 1993Date of Patent: May 30, 1995Assignee: JP Laboratories, Inc.Inventors: Gordhanbhai N. Patel, Yao-Ming Cheng, Subhash H. Patel
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Patent number: 5418123Abstract: (Magenta) colour images with improved stability to light may be obtained with a colour photographic recording material containing compounds of formula I as magenta couplers. The magenta couplers of formula I are particularly suitable for use in recording materials of positive colour images on light reflecting or transparent supports.Type: GrantFiled: November 12, 1993Date of Patent: May 23, 1995Assignee: Bayer AktiengesellschaftInventor: Erich Wolff
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Patent number: 5403703Abstract: A silver halide color photographic light-sensitive material has at least one light-sensitive silver halide emulsion layer on a support, contains a pyrazoloazole-based coupler, and further contains a compound represented by Formula (I) and/or Formula (II) below:Formula (I) A--(L.sub.1).sub.j --(L.sub.2).sub.m --[(L.sub.3).sub.n --PUG].sub.sFormula (II) A--L.sub.4 --L.sub.5 --PUGwhere A represents a coupler moiety or an oxidation-reduction group, each of L.sub.1 and L.sub.3 represents a divalent timing group, L.sub.2 represents a timing group with a valency of 3 or more and does not use electron transfer via a conjugated system, L.sub.4 represents a coupling group such as --OCO--, L.sub.5 represents a group for releasing PUG by electron transfer along a conjugated system or L.sub.4, PUG represents a photographically useful group, each of j and n independently represents 0, 1, or 2, m represents 1 or 2, and s represents a number obtained by subtracting 1 from a valence number of L.sub.Type: GrantFiled: August 13, 1992Date of Patent: April 4, 1995Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Atsuhiro Ohkawa
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Patent number: 5399472Abstract: A silver halide emulsion is disclosed including a blend of a first image dye-forming coupler which does not intrinsically inhibit development of silver halide, and a second image dye-forming coupler which intrinsically inhibits development of silver halide. The intrinsically development inhibiting couplers are defined empirically versus a standard coupler. For purposes of this invention DIR couplers are not considered intrinsically development inhibiting couplers. Photographic elements and methods for developing images using the coupler blends are also disclosed.Type: GrantFiled: April 16, 1992Date of Patent: March 21, 1995Assignee: Eastman Kodak CompanyInventors: Jeffrey L. Hall, Richard Szajewski
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Patent number: 5399467Abstract: Novel photographic silver halide materials contain dye-forming couplers represented by formula (I): ##STR1## wherein K is a coupler moiety based on pyrazolone, phenol, naphthol, enamine, or acylacetamide to which the ballast group is attached, are useful in photographic materials and processes. The containing the couplers exhibit increased coupling activity, and provide formation of dyes having improved maximum magenta image dye density, contrast, and development speed.Type: GrantFiled: October 29, 1993Date of Patent: March 21, 1995Assignee: Eastman Kodak CompanyInventors: Sundaram Krishnamurthy, Stanley W. Cowan
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Patent number: 5389500Abstract: Disclosed is a method for forming color photographic images which comprises printing of color images obtained by use of a color photographic light-sensitive material, having on a support, a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer onto a printing color photographic light-sensitive material having on a support, a yellow color forming layer, a magenta color forming layer and a cyan color forming layer, wherein the following requirements (A) and (B) are fulfilled,(A) wavelength .lambda..sub.B.sup.max to give the maximum value in spectral sensitivity distribution of a blue-sensitive silver halide emulsion layer is within the limits of 415 nm to 470 nm, and the sensitivity of the blue-sensitive emulsion layer at 480 nm is not more than 35% of the sensitivity at .lambda..sub.B.sup.Type: GrantFiled: October 19, 1993Date of Patent: February 14, 1995Assignee: Konica CorporationInventors: Hiroshi Shimazaki, Kuniaki Uezawa, Satoru Shimba, Yoshitaka Yamada