And Coupler Patents (Class 430/376)
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Patent number: 5441854Abstract: A process is disclosed for forming a color photographic image comprising the steps of:(a) providing an integral element comprising one and only one dimensionally stable layer comprising a reflection base or transparent base coating support, and coated thereon in reactive association an imaging layer comprising radiation sensitive silver halide, a diffusible dye forming layer comprising a diffusible dye forming compound, and a barrier layer overlaying said diffusible dye forming layer;(b) exposing this integral element to actinic radiation(c) processing this integral element by contacting this element to an external bath containing compounds selected from the group consisting of color developer compounds, compounds which activate the release of incorporated color developers, and compounds which activate development by incorporated dye developers; and(d) washing this integral element to remove compounds imbibed in step (c). The diffusible dye forming layer is the same or different than the imaging layer.Type: GrantFiled: July 18, 1994Date of Patent: August 15, 1995Assignee: Eastman Kodak CompanyInventors: John Texter, Wayne A. Bowman, Glenn T. Pearce
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Patent number: 5434034Abstract: There is disclosed a silver halide color photographic material and a method for forming a color image using said color photographic material. The silver halide color photographic material comprises silver halide emulsion grains comprising silver chlorobromide having a high silver chloride content and being substantially free from silver iodide, and a cyan dye-forming coupler represented by formula (I) or (II), and said silver halide emulsion grains being formed by adding a water-soluble bromide at the grain formation step, and/or during the period from the completion of the formation of the grains to the coating of the cyan dye-forming layer onto the support: ##STR1## wherein Za and Zb each represent --N.dbd. or --C(R.sub.3).dbd., with one of Za and Zb being --N.dbd. and the other being --C(R.sub.3).dbd.; R.sub.1 and R.sub.2 each represent an electron-attracting group, whose Hammett substituent constant .sigma..sub.p value is 0.20 or more, with the sum of the .sigma..sub.p values of R.sub.1 and R.sub.Type: GrantFiled: April 15, 1993Date of Patent: July 18, 1995Assignee: Fuji Photo Film Co., Ltd.Inventor: Masahiro Asami
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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: 5389506Abstract: A process of producing a viewable photographic image is disclosed wherein an imagewise exposed photographic element containing at least two silver halide emulsion layers capable of recording within the same region of the spectrum and having differing threshold sensitivities produces during photographic processing spectrally distinguishable images. Separate image records are obtained from the emulsion layers, and the image record corresponding to the photographically superior image is preferentially employed in producing a viewable image.Type: GrantFiled: August 25, 1993Date of Patent: February 14, 1995Assignee: Eastman Kodak CompanyInventor: James E. Sutton
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Patent number: 5362616Abstract: The invention is accomplished by forming balanced cyan, magenta, and yellow coupler and emulsion mixes. There is at least one layer in which silver halide emulsion has been sensitized to blue light or silver halide emulsion sensitive to green light. Regardless of the color sensitivity of the silver halide layer that contains silver contains a mix of cyan, magenta, and yellow dye-forming couplers. Further, in order to have a black-and-white image that has a lightness such as observed by the human eye in a scene, it is preferred that the ratios of red sensitive emulsion to green sensitive emulsion to blue sensitive emulsion in the photographic element is about 2:3:1.Type: GrantFiled: November 25, 1992Date of Patent: November 8, 1994Assignee: Eastman Kodak CompanyInventors: James L. Edwards, Paul T. Hahm, Mitchell J. Bogdanowicz, Joseph E. LaBarca
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Patent number: 5362882Abstract: A novel pyrrolotriazole derivative is disclosed, represented by any one of formulae (I), (II), (III), (IV), or (V): ##STR1## A heat transfer dye providing material is also disclosed, comprising a support having thereon a dye providing layer containing a heat migrating dye, said dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any one of formulae (I), (II), (III), or (IV).Type: GrantFiled: June 5, 1992Date of Patent: November 8, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Makoto Suzuki, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
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Patent number: 5354649Abstract: A color photographic silver halide material in which at least one silver halide emulsion consists of 85 to 99 mol-% AgCl, 1 to 10 mol-% AgI and 0 to 5 mol-% AgBr has high sensitivity (camera sensitivity) and can be developed in at most 120 s.Type: GrantFiled: August 4, 1993Date of Patent: October 11, 1994Assignee: Agfa Gevaert AktiengesellschaftInventors: Peter Bell, Jurgen Haekel, Cuong Ly, Reinhart Matejec, Ralf Wichmann
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Patent number: 5342740Abstract: A method of processing an imagewise exposed silver halide color photographic material is disclosed, wherein the photographic material comprises a support having thereon a photosensitive silver halide emulsion layer containing a silver halide emulsion having a silver chloride content of at least 80 mol %. The processing method comprises the steps of color developing the photographic material in a color developing solution, and then bleach-fixing in a bleach-fixing solution, further comprising replenishing the bleach-fixing solution as the photographic material is processed by adding thereto a regenerated bleach-fixing replenisher and collecting the resulting overflow solution from the bleach-fixing tank, the regenerated bleach-fixing replenisher comprising a regenerating agent and the overflow solution from the bleach-fixing tank, and wherein the solids content of the regenerating agent is at least 70 wt % of the total weight of the regenerating agent.Type: GrantFiled: October 2, 1991Date of Patent: August 30, 1994Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Goto, Takatoshi Ishikawa
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Patent number: 5328815Abstract: A method of processing a silver halide color photographic material comprising the steps of: (1) developing a silver halide color photographic material having an alkali consumption of 3.0 mmol/m.sup.2 or less, the silver halide color photographic material comprising (a) a support; (b) at least two layers on at least one side of the support, the at least two layers containing (i) silver halide emulsions being sensitive to different wavelength bands from one another, the silver halide emulsions containing at least 90 mol % silver chloride and (ii) oil soluble couplers that form dyes on coupling with oxidized primary amine color developing agent; and (2) washing the color photographic material for about 45 seconds where water from the washing step is treated with a reverse osmosis membrane and reused in the washing step.Type: GrantFiled: April 12, 1993Date of Patent: July 12, 1994Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroshi Hayashi
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Patent number: 5314794Abstract: A process of producing a viewable photographic image is disclosed wherein an imagewise exposed photographic element containing at least two silver halide emulsion layers capable of recording within the same region of the spectrum and having differing threshold sensitivities produces during photographic processing spectrally distinguishable images. Separate image records are obtained from the emulsion layers, and the image record corresponding to the photographically superior image is preferentially employed in producing a viewable image.Type: GrantFiled: June 26, 1992Date of Patent: May 24, 1994Assignee: Eastman Kodak CompanyInventor: James E. Sutton
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Patent number: 5306604Abstract: Photographic silver halide materials are disclosed comprising a support and a silver halide emulsion layer having associated therewith a coupler having in a non-coupling position a silyl substituent represented by the formula: ##STR1## wherein R.sub.1 through R.sub.4 individually are unsubstituted or substituted aliphatic, aromatic or heterocyclic groups, R.sub.5 is an unsubstituted or substituted aliphatic, aromatic or heterocyclic group which can be bonded to a non-coupling position of a second coupler moiety, and n=0, 1 or 2. In a preferred embodiment, the coupler is a photographic image dye-forming coupler. Processes for developing images in the photographic materials are also disclosed.Type: GrantFiled: December 7, 1992Date of Patent: April 26, 1994Assignee: Eastman Kodak CompanyInventor: Sundaram Krishnamurthy
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Patent number: 5264330Abstract: There is disclosed a method for processing a silver halide color photographic material containing a yellow coupler represented by formula (Y) with a color developer containing an aromatic primary amine color developing agent and a polymer of vinyl alcohol or vinyl pyrrolidone series. The disclosure described provides a method for development processing wherein yellow stain and processing nonuniformity in a running processing can be prevented effectively.Type: GrantFiled: March 13, 1991Date of Patent: November 23, 1993Assignee: Fuji Photo Film Co. Ltd.Inventors: Kazuaki Yoshida, Takatoshi Ishikawa
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Patent number: 5262286Abstract: The invention is generally accomplished by providing a reflection print material having thereon sensitized silver halide containing layers and at least one layer comprising at least one insoluble colored tint, wherein said at least one tint changes the color of said material to be less yellow. In a preferred form, it has been found that a combination of two tints is preferred to provide ready adjustment of the tinting to match the yellowing characteristics of the print material.Type: GrantFiled: July 31, 1992Date of Patent: November 16, 1993Assignee: Eastman Kodak CompanyInventors: John F. Bacilek, Gary J. McSweeney
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Patent number: 5246820Abstract: A photographic element having improved granularity contains a dye-forming coupler containing a carbamic acid precursor capable of being converted into a carbamic acid group during processing, and wherein after processing the carbamic acid group decomposes, leaving the dye substantially non-diffusable.Type: GrantFiled: March 3, 1992Date of Patent: September 21, 1993Assignee: Eastman Kodak CompanyInventors: Jared B. Mooberry, James J. Seifert, Stephen P. Singer
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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: 5219715Abstract: A color negative photographic recording material is described in which low emulsion coverage tabular grain silver halide emulsion imaging units are employed. The silver halide emulsion in at least one of the units comprises grains having a tabularity of between about 50 and 25,000. The imaging unit thickness is less than about 4.0 .mu.m, using a total of no more than 2.0 parts by weight of silver per part of coupler. The imaging unit yields a density of at least 2.0 when exposed and processed.Type: GrantFiled: January 30, 1992Date of Patent: June 15, 1993Assignee: Eastman Kodak CompanyInventors: Allan F. Sowinski, George F. Wu, Thomas B. Brust, James T. Kofron, Gary L. House
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Patent number: 5206120Abstract: A method for forming a color image comprising the step of: developing a silver halide color photographic material for a color developing time of about 20 seconds or less and for a total processing time from color developing to drying of about 100 seconds or less, wherein the silver halide color photographic material comprises (a) a support; and (b) at least two layers on at least one side of the support, each of said at least two layers containing (i) a silver halide emulsion containing at least 90 mol% silver chloride and at least 50% by weight of gelatin as a binder, the gelatin having an isoelectric point of at least 5.3, and (ii) a diffusion resistant oil-soluble coupler that forms a dye by coupling with an oxidation product of an aromatic primary amine developing agent; and (c) the silver halide in the at least two layers differing in sensitivity wavelength range.Type: GrantFiled: December 13, 1990Date of Patent: April 27, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroshi Hayashi
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Patent number: 5200302Abstract: A process for coating development of a silver halide color photosensitive material is provided which comprises coating the silver halide color photosensitive material with a color developer to form a thin film. This process is characterized in that a developer containing a p-phenylenediamine developing agent having a group capable of imparting hydrophilic properties which developer has an ionic strength of 0.8 or below and an electric potential of the immersion bath of -280 mV or below is applied to the photosensitive material to form a coating film which is at most 20 times as thick as the dry photosensitive layer of the photosensitive material.Type: GrantFiled: February 10, 1992Date of Patent: April 6, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Haruhiko Iwano
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Patent number: 5198328Abstract: A silver halide color photographic material comprising a support having thereon at least three photosensitive layers containing a silver chloride emulsion or a silver chlorobromide emulsion having an average silver chloride content of at least 96 mol % and containing substantially no silver iodide, said at least three photosensitive layers comprising a cyan coupler-containing layer, a magenta coupler-containing layer and a yellow coupler-containing layer, wherein said at least three photosensitive layers each has different spectral sensitivity peak in the photosensitive wavelength regions of 650 to 690 nm, 720 to 790 nm and 770 to 850 nm, respectively, and the total coating weight of silver halide is not more than 0.78 g/m.sup.2 in terms of silver, and the above-disclosed material wherein the support is a reflective support comprising a base paper impregnated with a synthetic polymer through the surface of the base paper, and a white pigment-containing water-resistant resin layer coated on the base paper.Type: GrantFiled: August 23, 1991Date of Patent: March 30, 1993Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Tadashi Ogawa
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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: 5173398Abstract: There is disclosed a silver halide color photographic light-sensitive material which is improved in image sharpness, pressure resistance and sweating. The photographic material comprises a support and provided thereon a coupler-containing layer, wherein said coupler-containing layer has substantially no high-boiling solvent; and said coupler-containing layer or another layer comprises a silver halide emulsion containing silver halide grains which are formed by supplying silver halide fine grains.Type: GrantFiled: October 29, 1991Date of Patent: December 22, 1992Assignee: Konica CorporationInventors: Fumie Fukazawa, Hiroshi Takada
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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: 5162196Abstract: The present invention relates to a novel color coupler for photography and a silver halide color photographic material comprising the same, wherein the color coupler is one of the .beta.,.gamma.-unsaturated nitriles represented by formula (I). The invention provides for a color coupler, particularly a cyan coupler, which forms color images less in subsidiary absorption, good in color reproduction, and excellent in fastness, and a silver halide color photographic material having color images as described above. Further the color coupler can be synthesized from inexpensive raw material at a low cost ##STR1## wherein W represents a hydrogen atom or a group capable of being released when the compound is subjected to a coupling reaction with the oxidized product of an aromatic primary amine derivative, R.sub.1 represents a represents a nitrogen atom, R.sub.2 represents a substituent, if V represents ##STR2## R.sub.2 and R.sub.3 each represent substituent, provided that at least one of R.sub.2 and R.sub.Type: GrantFiled: November 20, 1990Date of Patent: November 10, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Sato, Yasuhiro Shimada, Hideaki Naruse
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Patent number: 5155004Abstract: A chitosan or chitin compound having a photographically useful residue. There is also disclosed a method for processing a silver halide photographic material which comprises processing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer in the presence of said chitosan or chitin compound represented by the following general formula (I) ##STR1## wherein the substituents are defined in the instant specification.Type: GrantFiled: March 13, 1991Date of Patent: October 13, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Tetsuro Kojima
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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: 5151344Abstract: A method for processing a silver halide color photographic material is described, comprising a support having thereon at least one of a light-sensitive silver halide emulsion layer and an adjacent layer thereof containing, at least one compound represented by the formula (V), wherein said silver halide color photographic material is subjected to a color-developing-process with a color developing solution which a replenisher is replenished in an amount of 700 ml or less per m.sup.2 of the silver halide color photographic material: ##STR1## wherein A represents a coupler residue; R.sub.11 represents a divalent aliphatic group having from 1 to 4 carbon atoms; and R.sub.12 and R.sub.13 each represents an aliphatic group having from 1 to 4 carbon atoms.According to the method of processing a silver halide color photographic material, processing performance does not change in spite of the reduced replenishing amount of color developing solution.Type: GrantFiled: October 10, 1991Date of Patent: September 29, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Akira Abe, Keiji Mihayashi, Seiji Ichijima
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Patent number: 5147765Abstract: A method for processing silver halide color photographic materials is disclosed, comprising:(1) color-developing an imagewise exposing silver halide color photographic material with a primary aromatic amine based color developing agent, and then(2) desilvering said photographic material by a process comprising the following steps conducted in sequence:(a) treating in a bleaching bath,(b) treating in a bleach-fixing bath, and(c) treating in a fixing bath,wherein said bleaching bath is a bath of a bleaching solution having a pH of not more than 5.0 which contains an aminopolycarboxylic acid ferric complex salt having a redox potential of at least 150 mV, said fixing bath is a bath of a fixing solution having a pH of at least 6.Type: GrantFiled: October 31, 1990Date of Patent: September 15, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Masatoshi Goto, Yoshihiro Fujita, Shigeru Nakamura
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Patent number: 5118594Abstract: This invention relates to novel photographic dye-forming coupler compounds which are non-diffusible as incorporated in a photographic element, but which, during processing, are converted to a form which is removable from the element if the coupler compound has not reacted with oxidized silver halide color developing agent.Type: GrantFiled: April 29, 1991Date of Patent: June 2, 1992Assignee: Eastman Kodak CompanyInventors: Gregory J. Lestina, Jon D. Bass, John W. Harder, Stephen P. Singer
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Patent number: 5118591Abstract: The present inventions relate to a processing method for processing, with a developing time of not more than 180 seconds, a silver halide color photographic light-sensitive material comprising a support, provided thereon, with at least one silver halide emulsion layer, and at least one emulsion layer containing silver iodo-bromide with not less than 0.5 mole % of silver iodine, in particular to an active processing method wherein, a light-sensitive material B not only containing silver iodo-bromide with an iodine content of not less than 0.5 mole % but also a magenta coupler and providing a maximum magenta density, after exposed, and being capable of only satisfying the maximum magenta dye density M of M<2.0 if exposed under specific conditions and then subjected to color developing of a duration of three minutes 15 seconds at 38.degree. C. with a specific developer solution, is capable of offering a maximum magenta density satisfying M.gtoreq.2.Type: GrantFiled: January 25, 1991Date of Patent: June 2, 1992Assignee: Konica CorporationInventors: Shigeharu Koboshi, Satoru Kuse, Masayuki Kurematsu, Moeko Hagiwara
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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: 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: 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: 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: 5093221Abstract: A photosensitive element adapted for the preparation of colored images is disclosed. The photosensitive element comprises: a photosolubilizable layer consisting essentially of an acid-labile polymer and a photosolubilizing agent; an elastomeric layer; and a support. It can be processed by aqueous solvents, preferably ordinary tap water.Type: GrantFiled: August 5, 1991Date of Patent: March 3, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventors: Gwendyline Y. Y. T. Chen, Floyd A. Raymond, Jeffrey J. Patricia, Walter R. Hertler
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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: 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: 5063143Abstract: A process for forming a color image wherein a color photographic material is developed with a processing solution containing a solvent for the silver halide in the presence of an aromatic primary amino color devloping agent. The color photographic material comprises, on a support, at least one layer containing (1) a coupler capable of forming a dye by reaction with an oxidized aromatic primary amino color developing agent and having a dye covering power of at least 0.75 and (2) a silver chlorobromide emulsion or silver chlorobromide emulsion containing at least 90 molar % of silver chloride.Type: GrantFiled: April 9, 1990Date of Patent: November 5, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Hirose, Akira Abe, Kiyoshi Nakazyo
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Patent number: 5063142Abstract: A process for processing a silver halide color photographic material is disclosed, which comprises color developing and bleach-fixing the silver halide color photographic material, and then processing by at least one of washing the material with water and stabilizing the material, the silver halide color photographic material comprising a support having thereon at least one emulsion layer comprising a high silver chloride emulsion having a silver chloride content of 80 mol % or more and a used bleach-fixing solution which has been already used for the bleach-fixing, having a silver ion concentration of 0.02 mol/liter or more being used as a bleach-fixing solution for replenishment.Type: GrantFiled: May 21, 1990Date of Patent: November 5, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Takatoshi Ishikawa
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Patent number: 5051342Abstract: A silver halide photographic light-sensitive material having at least one light-sensitive emulsion layer containing surface latent image-type silver halide grains, coated on a reflective support, in which said at least one emulsion layer contains regular crystal grains of silver chloride or silver chlorobromide having a mean silver chloride content of 80 mol % or more on the basis of the total silver halide grains contained therein and substantially does not contain silver iodide, and in which a colloidal silver-containing layer is located adjacent to said emulsion layer, wherein at least one of said colloidal silver-containing layer, said emulsion layer and an interlayer therebetween contains at least one mercaptoazole compound. The material is, after having imagewise exposed, processed with a color developer within 90 seconds. The material forms an image with excellent sharpness and whiteness.Type: GrantFiled: July 5, 1990Date of Patent: September 24, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Kazunori Hasebe, Seiji Ichijima
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Patent number: 5051343Abstract: This invention relates to novel photographic dye-forming coupler compounds which are non-diffusible as incorporated in a photographic element, but which, during processing, are converted to a form which is removable from the element if the coupler compound has not reacted with oxidized silver halide color developing agent.Type: GrantFiled: June 16, 1989Date of Patent: September 24, 1991Assignee: Eastman Kodak CompanyInventors: Gregory J. Lestina, Jon D. Bass, John W. Harder, Stephen P. Singer
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Patent number: 5026628Abstract: Photographic compound (A) capable of releasing a photographically useful group is represented by the formula: SOL-CAR-LINK-PUG wherein SOL is a water-solubilizing group; CAR is a carrier moiety that, upon reaction with oxidized developing agent, is capable of releasing LINK-PUG and capable of forming a compound that is washed out of the photographic element during photographic processing; LINK-PUG is in turn capable of releasing a photographically useful group (PUG) during photographic processing and LINK-PUG is represented by the formula: ##STR1## wherein X, R.sub.1, R.sub.2, R.sub.3, R.sub.4 and PUG are as defined in the application. The photographic compound (A) enables formation of easily removable compounds in photographic elements and processes that provide images having improved acutance.Type: GrantFiled: February 22, 1990Date of Patent: June 25, 1991Assignee: Eastman Kodak CompanyInventors: William J. Begley, Teh-Hsuan Chen, Kenneth N. Kilminster, Jerrold N. Poslusny, Wojciech Slusarek
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Patent number: 5024924Abstract: A method for continuously processing a silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer with a color developing bath which contains at least one primary aromatic amine color developing agent, wherein at least one compound represented by formular (I) is present in said silver halide emulsion layer in an amount of from 3 to 10 mol % per mol of coupler in the layer in which the compound is added, and said silver halide color photographic material is processed with said color developing bath where the replenishment rate is from 20 ml to 200 ml per square meter of the silver halide color photographic material processed ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.Type: GrantFiled: October 27, 1989Date of Patent: June 18, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Hideaki Naruse, Osamu Takahashi, Nobutaka Ohki, Michio Ono
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Patent number: 5017466Abstract: A color-forming aminopyrimidine coupler represented by formula (I): ##STR1## where R.sub.1, R.sub.2, and R.sub.3 independently represent a hydrogen atom, a halogen atom, an alkoxy group, an aryloxy group, a heterocyclic-oxy group, an alkylthio group, an arylthio group, a heterocyclic-thio group, a substituted or unsubstitued amino group, a heterocyclic group bonding to the pyrimidine ring via a nitrogen atom thereof, an alkyl group or an aryl group; provided that at least one of R.sub.1, R.sub.2 and R.sub.3 is an unsubstituted or substituted amino group, and that when any one of R.sub.1, R.sub.2 or R.sub.3 contains a sulfonic acid group or a salt thereof, R.sub.1 , R.sub.2 or R.sub.3 contains at least one linear or branched alkyl group and that the total carbon atoms in the alkyl group(s) are to be more than 8; and R.sub.Type: GrantFiled: May 23, 1990Date of Patent: May 21, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Kobayashi, Reiichi Ohi, Kei Sakanoue
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Patent number: 5004675Abstract: A method for processing a silver halide color photosensitive material is disclosed.The process step comprises developing a color photographic light-sensitive material composed of a support having thereon at least one light-sensitive silver halide emulsion layer containing a silver halide containing at least 80 mol % silver chloride; at least one emulsion layer thereof containing a dispersion of a mixture of (i) at least one oil-soluble non-diffusible cyan coupler capable of forming a substantially non-diffusible cyan dye by coupling with the oxidized form of a developing agent, and (ii) a water-insoluble polymer;in a color developer solution comprising a primary amine color developing agent, and having a chloride ion concentration of from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/l, and a bromide ion concentration of from 3.0.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/l.Type: GrantFiled: October 3, 1989Date of Patent: April 2, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Yoneyama, Osamu Takahashi, Kazuaki Yoshida, Takatoshi Ishikawa
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Patent number: 5001041Abstract: A method for processing a silver halide color photographic material for prints comprising a color developing step, a bleach-fixing step, and either a stabilizing step or a water washing step is described, wherein the silver halide color photographic material comprises a reflective support having thereon at least one silver halide emulsion layer containing a silver halide having a silver chloride content of not less than 90 mol % and substantially not containing silver iodide, and the color developing step is conducted using a processing solution that does not substantially contain benzyl alcohol.According to the method of the present invention, the amount of water required in a water washing step or a stabilizing step can be greatly reduced without decreasing liquid stability of the water for washing or the stabilizing solution, and color prints having improved preservability are obtained.Type: GrantFiled: September 19, 1988Date of Patent: March 19, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinzo Kishimoto, Shinji Ueda, Kiyoshi Nakazyo
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Patent number: 4973545Abstract: A photographic coupler containing an aryloxysilyl group (--X--O--Y) wherein X is substituted or unsubstituted arylene and Y is a silyl group) is useful in photographic silver halide elements and processes. Such a photographic coupler enables improved dispersibility and improved photographic properties.Type: GrantFiled: September 14, 1989Date of Patent: November 27, 1990Assignee: Eastman Kodak CompanyInventor: Christopher P. Moore
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Patent number: 4966834Abstract: A method of processing a silver halide color photographic material by the steps of (a) developing an imagewise exposed silver halide color photographic material with a color developing solution substantially free from sulfite ions; and (b) immediately contacting the developed silver halide color photographic material with a bleach-fixing solution containing at least one of (i) from 1.times.10.sup.-2 mol to 2 mol of bromide ions and (ii) from 5.times.10.sup.-4 mol to 5.times.10.sup.-2 mol of iodide ions per liter.In accordance with the method of the invention, silver removal is fully accomplished and the formation of leuco dye is prevented even in rapid processing. Further, the formation of color stain is also prevented.Type: GrantFiled: September 1, 1988Date of Patent: October 30, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Shinji Ueda
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Patent number: 4965175Abstract: A method for continuous processing of a silver halide color photosensitive material is disclosed. The process steps comprise developing a color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing a silver halide comprising at least 80 mol % silver chloride, in a color developer solution containing a chloride ion concentration of from 3.5.times.10.sup.-2 to 2.0.times.10.sup.-1 mol/l, said developing step being conducted in a developer bath having a bath opening ratio (S/V) of at most 0.015 cm.sup.-1 wherein S is air-contacting area of the bath in cm.sup.2 and V is a total volume of the bath in cm.sup.3.Type: GrantFiled: October 3, 1989Date of Patent: October 23, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroshi Fujimoto, Kazuaki Yoshida
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Patent number: 4954426Abstract: A method for processing a silver halide color photographic light-sensitive material comprises color developing the light-sensitive material and then subjecting it to bleach-fixing treatment, the amount of bleach-fixing solution replenished being 0.2 to 15 times the volume of the color developer carried over, to the bleach-fixing bath, by the processed light-sensitive material per unit area thereof and not less than 80 mole % of the total non-metallic cations present in the replenisher for the bleach-fixing solution being ammonium ions. This method makes it possible to substantially reduce the magenta stains formed after processing due to the magenta couplers used.Type: GrantFiled: April 28, 1988Date of Patent: September 4, 1990Assignee: Fuji Photo Film Co., Ltd.Inventor: Takatoshi Ishikawa