And Developer Other Than Or In Addition To P-phenylenediamine Or Derivative Thereof Patents (Class 430/380)
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Patent number: 5851741Abstract: The present invention provides a method for forming color images by processing in a short period of time color photographic materials containing at least one oil-soluble coupler with a color developer which does not substantially contain benzyl alcohol, wherein a silver halide color photographic material having at least one silver halide emulsion layer on a reflective support, the emulsion layer containing a dispersion of oleophilic fine grains having a mean grain size of 0.25 .mu.m or less, which contain a coupler capable of forming a dye after having been coupled with an oxidation product of an aromatic primary amine developing agent, and at least one high boiling organic solvent having a dielectric constant of 4.00 or more (25.degree. C., 10 KHz). The photographic material is imagewise exposed and then subjected to development with a color developer which contains an aromatic primary amine developing agent but does not substantially contain benzyl alcohol for 2 minutes and 30 seconds or less.Type: GrantFiled: September 6, 1994Date of Patent: December 22, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Osamu Takahashi, Hideaki Naruse, Nobuo Sakai
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Patent number: 5846698Abstract: A silver halide color photographic material having on a support at least one light-sensitive silver halide emulsion layer, wherein the color photographic material contains a nondiffusing coupler represented by formula (I):Cp-O--C(.dbd.O)--N(R.sub.1)--Ar--X (I)wherein Cp represents a coupler residue capable of releasing --O--C(.dbd.O)--N(R.sub.1)--Ar--X by causing a coupling reaction with an oxidized color developing agent; Ar represents an arylene group; X represents an amino group, an alkoxy group, or a hydroxy group; and R.sub.1 represents a hydrogen atom or a substituent, and a method for processing the photographic material which comprises exposing, developing and bleaching the photographic material, wherein the replenishing amount for the developer is not more than 600 ml per square meter of the photographic material.Type: GrantFiled: January 30, 1997Date of Patent: December 8, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogiyama, Toshihiro Nishikawa, Seiji Ichijima
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Patent number: 5837433Abstract: A color corrected display image can be rapidly provided by color developing an imagewise exposed, duplitized color photographic element, scanning the developed image to form digital signals, and digitally manipulating those signals to correct either interimage interactions and/or gamma mismatches among at least two color recording units. The color corrected image can be provided in any desired form. The duplitized elements have at least one light-sensitive silver halide imaging layer on each side of the support.Type: GrantFiled: November 20, 1997Date of Patent: November 17, 1998Assignee: Eastman Kodak CompanyInventors: Anne E. Bohan, John M. Buchanan, Richard P. Szajewski
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Patent number: 5776664Abstract: A silver halide photographic material comprising: (a) a silver chloride-containing emulsion comprising a dispersion medium and a silver halide grain, wherein the silver halide grain contains a tabular grain having an average aspect ratio of not less than 2 accounting for at least 50% of the entire projected area thereof and has a silver chloride content of not less than 20 mol%; (b) a developing agent; and (c) a compound capable of forming a dye image upon development.Type: GrantFiled: June 17, 1996Date of Patent: July 7, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiji Yamashita, Koki Nakamura, Koichi Nakamura
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Color-developing agent, silver halide photographic light-sensitive material and image-forming method
Patent number: 5756275Abstract: There is disclosed novel color-developing agents of the formula (I-1), (I-2), (1-3), or (1-4). There is also disclosed silver halide photographic light-sensitive materials and image-forming methods, using the color-developing agent. ##STR1## wherein R.sup.1 represents a halogen atom or an aliphatic group substituted with at least one halogen atom; R.sup.2 represents a substituent; L represents --CONR.sup.4 --, --COO--, --CO--, --SO.sub.2 NR--, --C(.dbd.NR.sup.4)NR.sup.5 --, or --C(.dbd.NR.sup.4)O--; R.sup.3, R.sup.4, and R.sup.5 each independently represent a hydrogen atom, an aliphatic, aryl, or hererocyclic group; in formula (I-1), n is 1 or 2, m is 0 or 1, and the sum of n and m is 1 or 2; in formulae (I-2) to (I-4), n is 1 to 3, m is 0 to 2, and the sum of n and m is 1 to 3. R.sup.1 and R.sup.2, R.sup.1 and R.sup.1, and R.sup.2 and R.sup.2, respectively, do not bond together to form any ring. R.sup.Type: GrantFiled: November 26, 1996Date of Patent: May 26, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroo Takizawa, Taiji Katsumata, Toshiyuki Makuta, Toshiki Taguchi -
Patent number: 5747228Abstract: A color corrected display image can be rapidly provided by color developing an imagewise exposed, duplitized color photographic element, scanning the developed image to form digital signals, and digitally manipulating those signals to correct either interimage interactions and/or gamma mismatches among at least two color recording units. The color corrected image can be provided in any desired form. The duplitized elements have at least one light-sensitive silver halide imaging layer on each side of the support.Type: GrantFiled: April 7, 1997Date of Patent: May 5, 1998Assignee: Eastman Kodak CompanyInventors: Anne E. Bohan, John M. Buchanan, Richard P. Szajewski
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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: 5734032Abstract: The present invention discloses a photo-induced DNA-cleaving agent composition comprises N-aryl-N-(alkyl or arylalkyl)hydroxylamine having the following formula: ##STR1## wherein R is C.sub.1 -C.sub.6 alkyl, phenyl, C.sub.1 -C.sub.6 alkoxy, phenoxy, C.sub.1 -C.sub.6 alkoxycarbonyl, halogen or halo(C.sub.1 -C.sub.6 alkyl)wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.6 alkyl, phenyl, C.sub.1 -C.sub.6 alkoxy, C.sub.1 -C.sub.6 alkoxycarbonyl, halogen or halo(C.sub.1 -C.sub.6 alkyl); R.sub.2 is hydrogen; R.sub.3 is hydrogen or phenyl; R.sub.4 is hydrogen, phenyl, hydroxylphenyl, methoxyphenyl, dimethoxyphenyl, dimethylaminophenyl or naphthyl. The present N-aryl-N-(alkyl or arylalkyl)hydroxylamine is stable in dark, but it can react with O.sub.2 to form HO.multidot. radicals under irradiation of UV light for a period of 2-3 hours. The HO.multidot. radicals then react with DNA to accomplish cleavage of DNA.Type: GrantFiled: December 29, 1995Date of Patent: March 31, 1998Assignee: National Science CouncilInventors: Jih Ru Hwu, Shwu-Chen Tsay, Buh-Luen Chen, Himatkumar V. Patel, Wan-Lin Chen, Chun Chieh Lin, Ching-Tai Chou
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Patent number: 5716772Abstract: Provided is a silver halide photographic material excellent in discrimination, which comprises on a support at least one compound represented by formula (1): ##STR1## wherein R.sub.1 to R.sub.4 each represents a hydrogen atom or a substituent, with the proviso that the sum of the Hammett substituent constants .sigma..sub.p values of R.sub.1 to R.sub.4 is 0 or more; and R.sub.5 to R.sub.9 each represents a hydrogen atom or a substituent and at least one of R.sub.5 and R.sub.9 is a substituent, wherein R.sub.1 and R.sub.2, R.sub.5 and R.sub.6, R.sub.6 and R.sub.7, R.sub.7 and R.sub.8, or R.sub.8 and R.sub.9 may combine with each other to form a ring.Type: GrantFiled: September 20, 1996Date of Patent: February 10, 1998Assignee: Fuji Photo Film Co., Ltd.Inventor: Toshiki Taguchi
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Patent number: 5702873Abstract: A redox-amplification solution comprising hydrogen peroxide, or a substance capable of releasing hydrogen peroxide, or reducing agent, such as a color developing agent, and in combination three or more sequestering agents for complexing with a transition metal ion to inhibit catalysis of impurities emanating from a photographic film coating and enhance the stability of the solution; a method of photographic color processing including a step using the redox-amplification solution and its use therefor.Type: GrantFiled: April 10, 1996Date of Patent: December 30, 1997Assignee: Eastman Kodak CompanyInventor: Peter Jeffery Twist
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Patent number: 5695914Abstract: A method of producing a dye image by processing an imagewise exposed color photographic element containing at least one silver halide emulsion layer, the emulsion layer being comprised of both latent image and non-latent image containing silver halide grains, and having a distribution of Compound X, Compound X being either a ballasted coupler capable of reacting with an oxidized developing agent of a developing solution, or a ballasted developing agent capable, in an oxidized state, of reacting with a component of a developing solution, said method comprising:A. contacting the photographic element with a first developing solution to develop the latent image containing grains and to imagewise convert the distribution of Compound X to a first dye;B. rendering the non-latent image containing grains developable; andC.Type: GrantFiled: April 12, 1996Date of Patent: December 9, 1997Assignee: Eastman Kodak CompanyInventors: Richard Alan Simon, James Edward Sutton, James Thomas Kofron
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Color developing agent, silver halide photographic light-sensitive material and image forming method
Patent number: 5667945Abstract: There is disclosed a light-sensitive material comprising, in a hydrophilic colloid provided on a base, a color-developing agent represented by formula (I): ##STR1## wherein R.sup.1 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group, or a heterocyclic group; X.sup.1, X.sup.3, and X.sup.5 each represent a hydrogen atom, a nitro group, a cyano group, an alkylsulfonyl group, an arylsulfonyl group, an alkylsulfinyl group, an arylsulfinyl group, a sulfamoyl group, a carbamoyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, an acyl group, a trifluoromethyl group, or a heterocyclic group; and X.sup.2 and X.sup.Type: GrantFiled: February 21, 1996Date of Patent: September 16, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Takeuchi, Koki Nakamura, Toshiki Taguchi, Koichi Nakamura, Toshiyuki Makuta -
Patent number: 5635341Abstract: A solution for bleaching or bleach-fixing an exposed and developed silver halide color photographic light-sensitive material contains a ferric complex salt of a compound represented by the following Formula (A-I), (A-II) or (A-III), and a compound represented by the following Formula (B): ##STR1##Type: GrantFiled: May 23, 1995Date of Patent: June 3, 1997Assignee: Konica CorporationInventors: Hiroshi Yamashita, Yutaka Ueda
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Method of processing originating and display photographic elements using common processing solutions
Patent number: 5618656Abstract: An improved image forming method is disclosed which comprises contacting both an originating photographic element and a display photographic element with substantially similar processing solutions. The originating photographic element is characterized in that it contains at least 50 mole percent silver chloride grains and no more than 2 mole percent silver iodide, based on total silver forming the grain projected area. The grains are tabular grains bounded by {100} faces having adjacent edge ratios of less than 100 and each having an aspect ratio of at least 2.Type: GrantFiled: April 20, 1995Date of Patent: April 8, 1997Assignee: Eastman Kodak CompanyInventors: Richard P. Szajewski, John M. Buchanan -
Patent number: 5554492Abstract: The invention provides a color photographic material comprising at least one silver halide emulsion layer having associated therewith a dye image-forming coupler and which contains in a layer thereof an ETA (electron transfer agent) releasing compound of the general formula: ##STR1## wherein R.sup.1 is an alkyl group,R.sup.2 to R.sup.6 are individually H or an alkyl group with the proviso that when one or both of R.sup.5 or R.sup.6 are H, R.sup.3 and R.sup.4 must not be H,R.sup.7 to R.sup.11 are individually H, or an alkyl or alkoxy group,A is H or an alkyl group and B is an alkyl group or, together with the atoms to which they are attached, A and B complete a carbocyclic or heterocyclic ring group,or,when A and B are not linked together, A and R.sup.2 may together complete an aromatic or nonaromatic carbocyclic group or an aromatic or nonaromatic heterocyclic group,with the proviso that if R.sup.7 to R.sup.11 are all hydrogen then neither R.sub.3 nor R.sub.4 are methyl or hydroxymethyl.Type: GrantFiled: April 7, 1995Date of Patent: September 10, 1996Assignee: Eastman Kodak CompanyInventor: Siu C. Tsoi
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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: 5514532Abstract: A silver halide color photographic material comprising a support having thereon at least one layer containing a hydrazide compound represented by the following formula (1) ##STR1## wherein R represents an alkyl group, an aryl group, or an aromatic heterocyclic group and (PA) represents a pyrazoloazole coupler residue or an indazolone coupler residue.Type: GrantFiled: October 11, 1994Date of Patent: May 7, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Tadahisa Sato, Kei Sakanoue
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Patent number: 5492796Abstract: A silver halide color photographic material having on a support at least one light-sensitive silver halide emulsion layer, wherein the color photogrphic material contains a nondiffusing coupler represented by formula (I):Cp--(LINK).sub.n --N(R.sub.1)--Ar(OR.sub.2)--X (I)wherein Cp represents a coupler residue (residual group) which can undergo coupling reaction with the oxidation product of a color developing agent to release --(LINK).sub.n --N(R.sub.1)--Ar(OR.sub.2)--X; LINK represents a group which can release --N(R.sub.1)--Ar(OR.sub.2)--X after cleavage of bond to Cp; n represents 0 or an integar of 1 or 2, Ar represents an arylene group; X represents an amino group, an alkoxy group or a hydroxyl group; R.sub.1 represents a hydrogen atom or a substituent; and R.sub.Type: GrantFiled: October 26, 1994Date of Patent: February 20, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Masashi Ogiyama, Seiji Ichijima
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Patent number: 5491050Abstract: A method of processing an exposed originating silver halide color photographic element comprising developing the photographic element in a color devoloper containing a p-phenylenediamine color developing agent in the presence of a 1-phenyl pyrazolidin-3-one compoundwherein the originating silver halide photographic element comprises a radiation sensitive emulsion in reactive association with a development inhibitor releasing compound and containing a silver halide grain population comprised of grains comprising at least 50 mole percent silver chloride, based on total silver forming the grain population projected area, wherein at least 50 percent of total grain projected area is accounted for by intrinsically stable silver halide tabular grains(1) bounded by {100} major faces having adjacent edge ratios of less than 10 and(2) each having an average aspect ratio of at least 2, and wherein the silver halide content of the photographic element comprises at least 50 mole % silver chloride and no more than 2 mole %Type: GrantFiled: February 9, 1994Date of Patent: February 13, 1996Assignee: Eastman Kodak CompanyInventors: Thomas B. Brust, Sharon Gould, James E. Sutton, Richard P. Szajewski
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Patent number: 5415980Abstract: A method of forming a photographic image comprising imagewise exposing a silver halide color photographic material comprising a support having thereon a cyan color image forming layer, a magenta color image forming layer and an yellow color image forming layer, wherein the cyan color image forming layer in the photographic material contains silver halide emulsion grains having a silver chloride content of 95 mol % or more and containing substantially no silver iodide and contains a color sensitizing dye of the following general formula (I), ##STR1## wherein the terms are as defined in the specification and color developing the exposed material with a color developer, wherein the color developer has a chloride ion content of from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/liter and a bromide ion content of from 1.5.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/liter.Type: GrantFiled: March 25, 1994Date of Patent: May 16, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Naoto Ohshima
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Patent number: 5411840Abstract: A method of forming chromogenic photographic image comprising the steps of:providing an aqueous developable photographic element coated on a single dimensionally stable support, wherein said element comprises in reactive association (1) a developing agent, where said developing agent is a primary amine or a precursor of a primary amine, (2) radiation sensitive silver halide, (3) a color coupler compound that forms or releases a dye upon reaction with the oxidation product of a primary amine developing agent, and (4) a hydrophilic binder;exposing said element to actinic radiation; anddeveloping said image by contacting said element with an applied volume of an aqueous processing solution, wherein said applied volume is limited to less than 800% of the swell volume of said element in equilibrium-mechanical contact with said processing solution or the temporal duration of said contacting is limited to a time less than 500% of the time necessary for said element to swell to 90% of said swell volume.Type: GrantFiled: December 21, 1992Date of Patent: May 2, 1995Assignee: Eastman Kodak CompanyInventors: John Texter, Roland G. Willis
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Patent number: 5385816Abstract: This invention provides a color photographic element comprising, in an adjacent silver halide emulsion layer,(1) a development inhibitor releasing developer (IRD) which comprises a hydrazide, sulphonamidophenol, sulphonamidonaphthol, or hydroquinone moiety attached directly or via a linking group to a development inhibitor moiety which compound is oxidizable during silver halide development enabling release of the development inhibitor moiety under alkaline conditions,(2) a sulphonhydrazide color developing agent, and(3) a color coupler capable of forming image dye with the sulphonhydrazide during silver halide development.Type: GrantFiled: March 11, 1993Date of Patent: January 31, 1995Assignee: Eastman Kodak CompanyInventors: Paul L. R. Stanley, Siu C. Tsoi
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Patent number: 5380627Abstract: A method of processing an imagewise exposed photographic silver halide material in a system which includes circulation and replenishment of the processing solution employed in at least one processing step characterized in that said processing step takes place in a processing tank divided into at least two parts separated by a barrier which reduces the mixing of the solutions in the neighboring parts and in that each part is separately recirculated and replenished to maintain a different concentration of a processing bath component in the first or earlier part than the second or later part.Type: GrantFiled: May 7, 1993Date of Patent: January 10, 1995Assignee: Eastman Kodak CompanyInventor: Andrew D. Grimsey
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Patent number: 5354646Abstract: A method of colour-developing a silver halide colour light-sensitive material having plural silver halide emulsion layers each containing substantially silver chlorobromide. At least one of the layers has a silver chloride content of not less than 20 mol %, and a colour developer being used in the colour developing method contains the compounds each represented by the following formula [I]: ##STR1## According to the processing method, a colour photographic image having a satisfactory colour density can be obtained by a rapid development process and the excellent preservability for a long standing of the colour developer can be displayed.Type: GrantFiled: March 7, 1994Date of Patent: October 11, 1994Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kazuhiro Kobayashi, Shigeharu Koboshi, Masao Ishikawa, Masayuki Kurematsu, Yoko Matsushima
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Patent number: 5284739Abstract: Photographic materials having incorporated sulphonyhdrazide color developing agents. Such photographic materials have at least two color-forming units, each of which has a silver halide emulsion layer and a photographic coupler. A ballasted heterocyclic sulphonhydrazide color developing agent is present in the material in droplets of a high boiling point solvent. A method of forming a photographic color image using such materials is also provided.Type: GrantFiled: November 10, 1992Date of Patent: February 8, 1994Assignee: Eastman Kodak CompanyInventors: David Clarke, John D. Goddard, Paul L. R. Stanley, Nigel E. Milner
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Patent number: 5256525Abstract: A photographic element is disclosed including a support bearing at least one photographic silver halide emulsion layer and at least one non-photosensitive layer between the emulsion layer and the support, wherein the non-photosensitive layer comprises at least one blocked developing agent.Type: GrantFiled: December 19, 1991Date of Patent: October 26, 1993Assignee: Eastman Kodak CompanyInventors: David T. Southby, Jared B. Mooberry, John Texter, John L. Pawlak
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Patent number: 5242783Abstract: A novel blocked photographically useful compound element and process are based on a new blocking group that comprises a beta-ketocarbonyl group that is part of a 5- to 7-member heterocyclic ring containing a hetero-atom not adjacent to the beta-ketocarbonyl group. Such a blocked photographically useful compound provides a photographic material and process enabling more rapid release of the photographically useful group upon processing.Type: GrantFiled: July 23, 1992Date of Patent: September 7, 1993Assignee: Eastman Kodak CompanyInventors: John M. Buchanan, Gary S. Proehl
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Patent number: 5238789Abstract: A method for forming an image, comprising developing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one blue sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one red-sensitive silver halide emulsion layer with a color developer containing at least one aromatic primary amine color developing agent, wherein the red-sensitive silver halide emulsion layer contains a high silver chloride silver halide emulsion having a silver bromide content of from 0.5 to 6 mol%, and the color developer contains from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/l of chloride ion and from 3.0.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/l of bromide ion. The method provides an image having a high maximum density and a low minimum density at high sensitivity while markedly suppressing variations in photographic characteristics, particularly of minimum density, even in rapid and continuous processing.Type: GrantFiled: December 9, 1991Date of Patent: August 24, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Naoto Ohshima
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Patent number: 5221750Abstract: 2-aryl-4-isoxazolin-3-1-derivatives of formula (I), useful as intermediates for positive working compounds in silver halide photographic materials ##STR1## wherein R.sup.1 represents a substituted or unsubstituted alkyl having from 1 to 6 carbon atoms or a substituted or unsubstituted aryl having from 6 to 24 carbon atoms; and R.sup.2, R.sup.3, and R.sup.4, are the same or different, each having up to 20 carbon atoms and each represents hydrogen, a substituted or unsubstituted alkoxy, a substituted or unsubstituted aryloxy, a substituted or unsubstituted acyl, a substituted or unsubstituted alkoxycarbonyl, a substituted or unsubstituted aryloxycarbonyl, halogen, nitro, a substituted or unsubstituted carbamoyl, a substituted or unsubstituted sulfamoyl, a substituted or unsubstituted sulfonyl, cyano, or trifluoromethyl, with the proviso that at least one of said R.sup.2 and R.sup.3 is cyano, a substituted or unsubstituted sulfonyl, trifluoromethyl, or nitro.Type: GrantFiled: January 13, 1992Date of Patent: June 22, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Koki Nakamura, Shigeru Nakamura
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Patent number: 5210007Abstract: A color photographic element for use with a latent or silver image intensification or amplification method which incorporates a blocked color developing agent. The color photographic element includes at least one silver halide emulsion layer which includes at least about 70 mole percent chloride and has a concentration of silver within the range of about 0.1 mg/m.sup.2 to 2000 mg/m.sup.2. The blocked color developing agent is capable of being unblocked during photographic processing by means of reaction with a dinucleophile reagent. A preferred dinucleophile reagent is hydrogen peroxide, which also acts as an oxidant in the latent or silver image intensification method.Type: GrantFiled: December 19, 1991Date of Patent: May 11, 1993Assignee: Eastman Kodak CompanyInventors: John Texter, David Southby, Jared Mooberry, Roland Willis
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Patent number: 5178992Abstract: There is disclosed a method for processing a silver halide color photographic material paper base of which contains at least one of specified sizing agents with a color developer containing a hydroxylamine compound. According to the disclosure edge stain due to penetration of the color developer into the paper base is prevented.Type: GrantFiled: August 29, 1990Date of Patent: January 12, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuaki Yoshida, Hiroshi Fujimoto
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Patent number: 5176987Abstract: A method for processing an imagewise exposed color photographic material using fast developing time while maintaining stable processing conditions, reduced developer replenishing, and light fastness of developed color images. The method comprises developing a color photographic material containing silver halide grains comprising (i) substantially no silver iodide and (ii) at least about 80 mol % silver chloride with a developer comprising (i) substantially no benzyl alcohol and (ii) a p-phenylenediamine derivative represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group having from 1 to 4 carbon atoms and R.sup.2 represents a straight chain or branched alkylene group having 3 or 4 carbon atoms and wherein the developing is for a period of time of less than 30 seconds.Type: GrantFiled: October 16, 1991Date of Patent: January 5, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Koichi Nakamura, Nobutaka Ohki
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Patent number: 5173395Abstract: A method for forming a color image which comprises developing an imagewise exposed silver halide color photographic material with a color developer containing at least one aromatic primary amine developing agent, wherein said silver halide color photographic material comprises a reflective support, whose transmission density in the red region ranges from 0.2 to 0.9, having thereon at least one light-sensitive emulsion layer containing at least one coupler capable of forming a dye on coupling with an oxidation product of the developing agent and silver chlorobromide grains comprising at least 80 mol % of silver chloride and containing substantially no silver iodide, said support having further provided thereon a dye represented by formula (A): ##STR1## wherein R.sub.101 and R.sub.102 each represents --OR.sub.105, --COOR.sub.105, ##STR2## --COR.sub.105, --CN or --R.sub.107, wherein R.sub.105 and R.sub.Type: GrantFiled: October 5, 1989Date of Patent: December 22, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Masahiro Asami
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Patent number: 5153108Abstract: A method for processing a silver halide color photographic material comprising at least one silver halide emulsion layer, which comprises developing the silver halide color photographic material with a color developer containing at least one aromatic primary amine color developing agent, wherein the photographic material contains (a) at least one high silver chloride content emulsion layer with a silver chloride content of 80 mol % or more, and (b) a compound of formula (I): ##STR1## wherein R.sub.1 and R.sub.2 each represents --COOR.sub.5, ##STR2## --COR.sub.5 --CN or a halogenated methane R.sub.3 and R.sub.4 each represents a hydrogen atom or an unsubstituted or substituted alkyl group; R.sub.5 and R.sub.6 each represents a hydrogen atom, an unsubstituted or substituted alkyl group or an unsubstituted or substituted aryl group; Q.sub.1 and Q.sub.2 each represents an aryl group; X.sub.1 and X.sub.2 each represents a chemical bond or a divalent linking group; Y.sub.1 and Y.sub.Type: GrantFiled: November 8, 1991Date of Patent: October 6, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Kazuaki Yoshida
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Patent number: 5153109Abstract: A method for processing a silver halide color photosensitive material, which comprises developing a silver halide color photosensitive material containing at least one compound selected from the group consisting of compounds represented by formula [A], bis or tris compounds and polymers derived therefrom, and alkali unstable precursors thereof, in a color developer which is replenished at a rate of not more than 9 ml per 100 cm.sup.2 of the silver halide color photosensitive material; ##STR1## wherein R.sub.a and R.sub.b each represents a hydrogen atom, a halogen atom, --SO.sub.3 M, --COOM (wherein M represents H, an alkali metal atom or NH.sub.4), an alkyl group, an acylamino group, an alkoxy group, an aryloxy group, an alkythio group, an arylthio group, a sulfonyl group, an acyl group, a carbamoyl group or a sulfamoyl group and they may together form a carbon ring; X represents a --CO-- group or a --SO.sub.2 -- group; R.sub.Type: GrantFiled: August 7, 1990Date of Patent: October 6, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Yoshihiro Fujita, Keiji Mihayashi
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Patent number: 5147764Abstract: Photographic elements are described havinga silver halide emulsion layer,a 2-equivalent 5-pyrazolone coupler is reactive association with said silver halide emulsion, anda competitor for oxidized developer in reactive association with said coupler having the formula: ##STR1## wherein R.sup.1 represents an electron donating group,R.sup.2 represents hydrogen, alkyl, alkoxy, aryl, aryloxy, aralkyl or amino of the formula --NHR.sup.3, where R.sup.3 is phenyl or benzyl, with the proviso that at least one ofthe substitutents R.sup.1 and R.sup.2 (a) represents (1) a ballast group of sufficient size as to render the hydrazide compound non-diffusible in the photographic element prior to development in alkaline processing solution and (b) comprises a polar group, andn is 0, 1 or 2.Type: GrantFiled: April 30, 1991Date of Patent: September 15, 1992Assignee: Eastman Kodak CompanyInventor: Arlyce T. Bowne
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Patent number: 5128238Abstract: A method for producing color images comprising developing a negative silver halide color photographic materials and an internal latent-image type direct positive silver halide color photogaphic material, with the same developer having a pH of 9.0 to 11.5, said direct positive photographic material containing at least one compound represented by formula (N-I) as nucleating agent and at least one compound represented by (I) or (II) as magenta coupler, thereby ensuring high color reproducibility to both photographic materials: ##STR1## wherein the symbols and substituents of said formulae are as defined in the specification.Type: GrantFiled: May 3, 1990Date of Patent: July 7, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Nakazyo, Shinji Ueda, Akira Abe, Noriyuki Inoue
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Patent number: 5118592Abstract: A method for forming an image, which comprises developing a silver halide color photographic material with a color developer containing at least one aromatic primary amine color developing agent, wherein said silver halide color photographic material comprises a silver chloride or silver chlorobromide emulsion having an average silver bromide content of not more than 10 mol % and containing substantially no iodide, with a mean grain size of an emulsion contained in the blue-sensitive layer thereof being controlled to 0.9 .mu.m or smaller, silver halide to coupler ratio in said blue-sensitive layer ranges from 2 to 5 as a molar ratio, and said color developer contains from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/l of a chloride ion and from 3.0.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/l of a bromide ion.Type: GrantFiled: December 24, 1991Date of Patent: June 2, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazunori Hasebe
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Patent number: 5118593Abstract: A method of color image formation is disclosed, comprising imagewise exposing a color photographic light-sensitive material comprising a reflective support having provided thereon at least one light-sensitive layer containing a color coupler capable of forming a color image upon coupling with an oxidation product of an aromatic primary amine developing agent and a silver halide emulsion, and processing the exposed light-sensitive material with a color developing solution containing substantially no benzyl alcohol within a development time of 2 minutes and 30 seconds, wherein said processing is carried out in the pressence of at least one compound represented by formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 each represents a hydrogen atom, a hydroxyl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted alkynyl group, an acyl group, or a sulfonyl group; or R.sup.1 and R.sup.2, or R.sup.3 and R.sup.Type: GrantFiled: September 19, 1991Date of Patent: June 2, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kokichi Waki, Shigeo Hirano
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Patent number: 5110714Abstract: There is disclosed a method for processing a silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent. In the method a silver halide color photographic material having at least one of the layers of which comprises a silver halide emulsion of high chloride containing 80 mol % or over of silver chloride, and containing at least one coupler having relative coupling rate of 0.05 or over in each color-sensitive layer is processed, after exposure to light, with a color developer containing a specified amount of chloride ions and bromide ions.Type: GrantFiled: October 3, 1989Date of Patent: May 5, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Genichi Furusawa, Yasuhiro Yoshioka, Yasufumi Nakai
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Patent number: 5110715Abstract: The present invention relates to a photographic reversal process for the production of positive photographic images by imagewise exposure of the photosensitive material containing at least one silver halide emulsion layer, black-and-white first development of the material, chemical fogging or diffuse second exposure and subsequent color development, characterized in that1. at least one N,N-dialkyl-p-phenylenediamine derivative is used as sole developer in the first development,2. the first development bath contains at least one compound which prevents the developer oxidation product formed during the first development from reacting with the color couplers present in the color photographic reversal material to form image dyes,3.Type: GrantFiled: October 10, 1989Date of Patent: May 5, 1992Assignee: Agfa Gavaert AktiengesellschaftInventors: Ubbo Wernicke, Werner Berthold, Helmut Haseler, Gustav Tappe
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Patent number: 5110713Abstract: A method for continuously processing silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent is disclosed. In the method a silver halide color photographic material at least one of the layers of which contains a silver halide emulsion of a high chloride comprising 80 mol % or over of silver chloride is processed in the presence of a specific heterocyclic compound, after exposure to light, with a color developer that is substantially free from sulfite ions and whose replenishing amount is 120 ml or below per m.sup.2 of the silver halide photographic material, to attain desired photographic characteristics.Type: GrantFiled: March 27, 1991Date of Patent: May 5, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuaki Yoshida, Takatoshi Ishikawa
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Patent number: 5104780Abstract: There is disclosed a light-sensitive silver halide photographic material which comprises containing a compound having ##STR1## group at 4-position of a pyrazole ring, and having a residue of non-diffusion type coupler through an oxygen atom, a sulfur atom or an imino group at the 5-position of the same, wherein A represents a residue of 1-phenyl-3-pyrazolidone derivatives and p is 0 or 1.Type: GrantFiled: November 7, 1990Date of Patent: April 14, 1992Assignee: Konica CorporationInventors: Shuichi Sugita, Shuji Kida, Hidenobu Ohya
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Patent number: 5093227Abstract: There is disclosed a method for processing a silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent. In the method a silver halide color photographic material which comprises a pyrazoloazole-type coupler and an image-dye stabilizer, and has at least one of the layers comprising a silver halide emulsion of a high silver chloride and the total coating amount of silver of 0.75 g/m.sup.2 or below is processed, after exposure to light, with a color developer containing a specified amount of chloride ions and bromide ions, to improve development treatment characteristics, desilvering ability, and stability of an image.Type: GrantFiled: October 3, 1989Date of Patent: March 3, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Nakazyo, Kazuaki Yoshida
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Patent number: 5093226Abstract: A method for forming an image of a silver halide color photograph, which comprises processing a silver halide color photographic material with a color developing solution containing at least one aromatic primary amine color developing agent, comprises: processing a silver halide color photographic material having at least one layer containing a compound represented by formula (S) and a silver halide emulsion comprising at least 80 mol % of silver chloride with a color developing solution containing chlorine ion in an amount of 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/l and bromine ion in an amount of 3.0.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/l: ##STR1## wherein Z.sub.1 represents a nitrogen atom, an oxygen atom, a sulfur atom or a selenium atom; Z.sub.2 represents an oxygen atom, a sulfur atom or a selenium atom; L.sub.1, L.sub.2, L.sub.3, L.sub.4 and L.sub.5 each represents a methine group which may be optionally substituted or may be combined together with another methine group to form a ring; R.Type: GrantFiled: October 3, 1989Date of Patent: March 3, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Naoto Ohshima
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Patent number: 5082765Abstract: A method of processing a light-sensitive silver halide color photographic material wherein a light-sensitive silver halide photographic material having a support and provided thereon at least one silver halide emulsion layer containing a dye-forming coupler and silver halide grains which are sensitized with specific sensitizing dyes, is processed with a color developer solution containing specific aromatic primary amine color developing agents.Type: GrantFiled: October 15, 1990Date of Patent: January 21, 1992Assignee: Konica CorporationInventors: Kaoru Onodera, Keiji Ohbayashi, Mitsuhiro Okumura, Shigeo Chino
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Patent number: 5077180Abstract: A method for continuously processing silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent is disclosed. In the method a silver halide color photographic material at least one of the layers of which contains a silver halide emulsion of a high chloride comprising 80 mol % or over of silver chloride is processed, after exposure to light, with a color developer that is substantially free from sulfite ions and whose replenishing amount is 120 ml or below per m.sup.2 of the silver halide photographic material, to attain desired photographic characteristics.Type: GrantFiled: March 4, 1991Date of Patent: December 31, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazuaki Yoshida, Takatoshi Ishikawa
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Patent number: 5071994Abstract: 2-aryl-4-halomethyl-4-isoxazolin-3-1-derivatives of formula (I), useful as intermediates for positive working compounds in silver halide photographic materials ##STR1## wherein R.sup.1 represents a substituted or unsubstituted alkyl having from 1 to 6 carbon atoms or a substituted or unsubstituted aryl having from 6 to 24 carbon atoms; R.sup.2, R.sup.3, and R.sup.4, are the same or different, each having up to 20 carbon atoms and each represents hydrogen, a substituted or unsubstituted alkoxy, a substituted or unsubstituted aryloxy, a substituted or unsubstituted acyl, a substituted or unsubstituted alkoxycarbonyl, a substituted or unsubstituted aryloxycarbonyl, halogen, nitro, a substituted or unsubstituted carbamoyl, a substituted or unsubstituted sulfamoyl, a substituted or unsubstituted sulfonyl, cyano, trifluoromethyl, or carboxyl, with the proviso that at least one of said R.sup.2 and R.sup.Type: GrantFiled: January 23, 1991Date of Patent: December 10, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Koki Nakamura, Shigeru Nakamura
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Patent number: 5070003Abstract: There is disclosed a method for processing a silver halide color photographic material with a color developer containing at least one aromatic primary amine color-developing agent. In the method a silver halide color photographic material having at least one of the layers of which contains a silver halide emulsion of a high chloride comprising 80 mol % or over of silver chloride and the total coating amount of silver of which is 0.75 g/m.sup.2 or below is processed, after exposure to light, with a color developer containing a specified amount of chloride ions and bromide ions. The silver halide color photographic material contains at least one of yellow couplers specified.Type: GrantFiled: October 3, 1989Date of Patent: December 3, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideaki Naruse, Kazuaki Yoshida
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Patent number: RE33964Abstract: A method of processing a silver halide color photographic material in which the color developer used comprises an aromatic primary amine color developing agent and a compound of formula: ##STR1## wherein X represents a trivalent group necessary to complete a condensed ring;R.sup.1 and R.sup.2 each represents an alkylene group, an arylene group, an alkenylene group, or an aralkylene group;and, if desired, does not contain a substantial amount of benzyl alcohol to achieve improved stability and color developability of the color developer and a reduction of fog generation in the running development process.Type: GrantFiled: September 11, 1990Date of Patent: June 16, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Hiroshi Fujimoto, Nobutaka Ohki, Morio Yagihara