And Binder, Coating Aid, Solvent, Emulsifier, Hardener, Chemical Sensitizer, Or Optical Sensitizer Patents (Class 430/377)
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Patent number: 5200307Abstract: A silver halide color photographic material containing a support having thereon photographic constitutional layers, which comprises(a) a magenta coupler represented by formula (I) that is contained with a high-boiling organic solvent at a prescribed weight ratio in a magenta coupler containing layer, and(b) a ultraviolet absorbing agent represented by formula (II) that is contained with a hydrophobic polymer in a non-photosensitive layer located at a position farther than a cyan coupler containing emulsion layer for the base: ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituent, Z.sub.a, Z.sub.b, and Z.sub.c each represent a methine, substituted methine, .dbd.N--, or --NH--, Y represents a hydrogen atom or a group capable of being released upon a coupling reaction with the oxidized product of a developing agent, and the compound may form a dimer or higher polymer through R.sub.1, Y, or Z.sub.a, Z.sub.b, or Z.sub.c, that is a substituted methine, ##STR2## wherein R.sub.2, R.sub.3, and R.sub.Type: GrantFiled: September 30, 1991Date of Patent: April 6, 1993Assignee: Fuji Photo Film Co., Ltd.Inventor: Osamu Takahashi
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Patent number: 5192646Abstract: A method of forming color in a silver halide photographic element wherein the silver halide is sensitized with a dye involves reacting an oxidized developing agent with a phenol or naphthol cyan dye-forming coupler or an acylacetamide yellow dye-forming coupler in a sulfoxide coupler solvent. The sulfoxide solvent reduces sensitizer dye staining with the cyan or yellow dye-forming coupler in processed photographic materials (films and papers) due to retained sensitizing dye.Type: GrantFiled: December 9, 1991Date of Patent: March 9, 1993Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, Edward Schofield, Tienteh Chen
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Patent number: 5188926Abstract: A method of forming color in a silver halide photographic element wherein the silver halide is sensitized with a dye involves reacting an oxidized developing agent with a phenol or naphthol cyan dye-forming coupler or an acylacetamide yellow dye-forming coupler in a carbonamide coupler solvent. The carbonamide solvent reduces sensitizer dye staining with the cyan or yellow dye-forming coupler in processed photographic materials (films and papers) due to retained sensitizing dye.Type: GrantFiled: December 9, 1991Date of Patent: February 23, 1993Assignee: Eastman Kodak CompanyInventors: Edward Schofield, Paul B. Merkel, Tienteh Chen
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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: 5162195Abstract: A method for processing a silver halide color photosensitive material is disclosed: (i) subjecting a full-color photographic material to scanning exposure to three lights each having different wavelength; (ii) processing said exposed full-color photographic material with a color developer containing at least one aromatic primary amine color developing agent and containing chloride ion in amount of from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mole/liter and bromide ion in an amount from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mole/liter.Type: GrantFiled: February 14, 1990Date of Patent: November 10, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Yoshio Inagaki
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Patent number: 5153110Abstract: A method of forming colored images by exposing and then developing a silver halide color photographic photosensitive material which has a blue sensitive silver halide emulsion layer, a green sensitive silver halide emulsion layer and a red sensitive silver halide emulsion layer on a support. In the method, silver halide grains which have a silver bromide containing phase of which the silver bromide content is from 10 to 60 mol % localized at the surface or within the grains, and in which from 95 to 99.5 mol % (average value) of the grains as a whole in the emulsion layer consists of silver chloride, the remainder consisting of substantially silver iodide free silver bromide, are included in at least one of the green sensitive and red sensitive silver halide emulsion layers. The material is subjected to a scanning exposure with blue light, green light and red light.Type: GrantFiled: February 12, 1992Date of Patent: October 6, 1992Assignee: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Kawai, Yoji Okazaki
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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: 5108877Abstract: A method for forming a color image is described, using an image-wise exposed silver halide color photographic material comprising, a reflective support having thereon at least one silver halide emulsion layer containing at least one coupler that forms a dye by means of a coupling reaction with the oxidation product of an aromatic primary amine developing agent and silver halide grains comprising silver bromochloride containing not less than 90 mol % silver chloride and substantially not containing silver iodide, said silver halide grains having a localized silver bromide phase having a silver bromide content of not less than 20 mol % and being chemically sensitized at the surface thereof to provide substantially surface latent image type grains, comprising developing the light-sensitive material with a color developing solution containing from 3.5.times.10.sup.-2 to 1.5.times.10.sup.-1 mol/l of chloride ions and from 3.0.times.10.sup.-5 to 1.0.times.10.sup.-3 mol/l of bromide ions.Type: GrantFiled: April 9, 1991Date of Patent: April 28, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Masahiro Asami
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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: 5082764Abstract: There is disclosed a silver halide color photographic material having at least one silver halide emulsion layer on a base, which comprises in the silver halide emulsion layer a silver halide grains of high silver-chloride and an emulsified dispersion containing lipophilic fine particles that have a limited average particle diameter and include a cyan coupler represented by formula (I), a high-boiling organic solvent having a limited viscosity, and a diffusion-resistant compound represented by formula (II) or (III), and a method for forming an image by developing the said silver halide color photographic material. The disclosure as described provides a color photographic material and a method for forming an image being excellent in image quality and preservation property of cyano color image.Type: GrantFiled: October 26, 1990Date of Patent: January 21, 1992Assignee: Fuji Photo Film Co., Ltd.Inventor: Osamu Takahashi
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Patent number: 5081006Abstract: A silver halide photographic light-sensitive material comprising a support having thereon a yellow coupler-containing silver halide emulsion layer, a magenta coupler-containing silver halide emulsion layer and a cyan coupler-containing silver halide emulsion layer, wherein at least one of said silver halide emulsion layers contains silver halide grains having a silver chloride content of not less than 80 mol %, at least one of the sensitizing dyes represented by the following Formula [I] and at least one of the sensitizing dyes represented by the following Formula [II]; and said cyan coupler-containing silver halide emulsion layer contains at least one of the cyan couplers represented by the following Formula [III]: ##STR1##Type: GrantFiled: September 5, 1990Date of Patent: January 14, 1992Assignee: Konica CorporationInventors: Shigeo Tanaka, Masahiro Shibuya
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Patent number: 5063139Abstract: A color photographic light-sensitive material capable of being processed at an ultrahigh speed, which comprises at least two light-sensitive layers on at least one side of a support wherein each layer contains a light-sensitive silver halide emulsion and a nondiffusive oil-soluble coupler capable of coupling with an oxidation proudct of an aromatic primary amine color developing agent to produce a dye, said light-sensitive layers having different sensitive wavelength ranges, said silver halide is silver chloride or silver chlorobromide containing at least 90 mol % of silver chloride, and the alkali-consuming amount of said light-sensitive material is not more than 2.6 mmol/m.sup.2.A process for the formation of color images using the light-sensitive material, which comprises imagewise exposing light-sensitive material, and then subjecting the material to color development for not more than 20 seconds.Type: GrantFiled: June 15, 1990Date of Patent: November 5, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Hiroshi Hayashi
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Patent number: 5057402Abstract: A silver halide photographic material having at least one light-sensitive emulsion layer containing surface latent image type silver halide grains on a support, wherein the emulsion layer contains a silver halide emulsion, in an amount of 50% by weight or more, which is a substantially silver iodide-free silver chlorobromide comprising silver chloride in an amount of 70 mol % or more (as a mean value) of the total silver halide constituting the silver halide grains, which has a silver bromide-localized phase with a silver bromide content of less than 70 mol % in the inside or on the surface of the grains, and which further contains ions on in the grains.Type: GrantFiled: January 18, 1989Date of Patent: October 15, 1991Assignee: Fuji Photo Film Co., Ltd.Inventors: Keisuke Shiba, Kazunori Hasebe, Masahiro Asami
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Patent number: 5024929Abstract: A method of preparing a coupler dispersion in gelatin by separating the auxiliary coupler solvent using a hydrophilic membrane having a pure size less than 175 Angstroms.Type: GrantFiled: April 30, 1990Date of Patent: June 18, 1991Assignee: Eastman Kodak CompanyInventors: Edgar P. Lougheed, Carl B. Richenberg, Stephen P. Chen
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Patent number: 5008179Abstract: The invention is accomplished by providing an aqueous dispersion of a photographic coupler by precipitation from a solvent solution by solvent and/or pH shift. A second aqueous dispersion of an activating permanent solvent for the photographic coupler is also provided. The dispersion of activating permanent solvent and photographic coupler are combined to form a combined dispersion which is mixed with a gelatin dispersion of silver halide particles to form a photographic emulsion suitable for casting as a photographic element. In a preferred method of the invention, the activating solvent is incorporated into a dispersion of latex particles prior to being combined with the dispersion of photographic coupler.Type: GrantFiled: November 22, 1989Date of Patent: April 16, 1991Assignee: Eastman Kodak CompanyInventors: Krishnan Chari, Wayne A. Bowman, Brian Thomas
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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: 5001042Abstract: A method for forming an image which comprises developing an imagewise exposed 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 contains a silver chlorobromide emulsion having an average silver bromide content of from 0.1 to 10 mol % and containing substantially no iodide in at least one layer thereof, at least said silver chlorobromide emulsion containing a gold compound, and said 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.Type: GrantFiled: October 3, 1989Date of Patent: March 19, 1991Assignee: Fuji Photo Film Co., Ltd.Inventor: Kazunori Hasebe
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Patent number: 4990431Abstract: The invention is performed by providing a first flow of water and surfactant, a second flow comprising solvent, base and photographic material, and mixing said first and second streams and either simultaneously or immediately following thereof neutralizing said streams to prevent hydrolysis of a hydrolyzable surfactant and/or premature precipitation of particles before neutralization. The streams then may be immediately treated for formation into photographic materials. In a preferred method the first and second stream may be brought together immediately prior to a mixer with addition of acid directly into the mixer to neutralize the dispersion of fine particles.Type: GrantFiled: January 17, 1989Date of Patent: February 5, 1991Assignee: Eastman Kodak CompanyInventors: Pranab Bagchi, James T. Beck, Lia A. Crede
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Patent number: 4973535Abstract: This invention relates to a color photographic silver halide recording material containing a dye image-forming coupler compound and a sulfonamide compound which is capable of altering the spectral absorption properties of a dye formed by reaction of the coupler compound with oxidized developing agent.Type: GrantFiled: August 12, 1988Date of Patent: November 27, 1990Assignee: Eastman Kodak CompanyInventors: Paul B. Merkel, David J. Giacherio
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Patent number: 4925777Abstract: A direct positive color image forming method which comprises processing an imagewise exposed photographic light-sensitive material with a surface color developing solution containing an aromatic primary amine color developing agent, after fogging treatment and/or during fogging treatment, wherein the photographic light-sensitive material comprises a support having thereon at least one internal latent image type silver halide emulsion layer that has not been previously fogged, a color image forming coupler, colloidal silver, and at least one compound represented by general formula (II): ##STR1## wherein Z represents an atomic group necessary for completing a 5-membered or 6-membered nitrogen-containing heterocyclic ring; D and D', which may be the same or different, each individually represents an atomic group necessary for completing an acidic nucleus and D and D' may be bonded to each other to form a cyclic structure; R.sup.Type: GrantFiled: October 20, 1988Date of Patent: May 15, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Noriyuki Inoue, Takashi Ozawa
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Patent number: 4923783Abstract: A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer containing at least one high boiling point organic solvent and at least one substantially water-insoluble photographically useful reagent both dispersed therein, wherein at least one of the high boiling point organic solvents is a compound represented by formula (I):(ArCOO).sub.n --L (I)(the symbols of which are described herein).By incorporation of a compound of formula (I), reductive fading of cyan dyes formed in the material due to heat, moisture is minimized.A method of processing the silver halide photographic material as imagewise exposed with a color developer containing substantially no benzyl alcohol is also disclosed.Type: GrantFiled: October 14, 1988Date of Patent: May 8, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidetoshi Kobayashi, Hideaki Naruse
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Patent number: 4914007Abstract: An image forming process is disclosed, which comprises, in the photographic processing of silver halide color photographic materials, processing the color photographic material having a swelling degree of the photographic layer(s) of from 1.5 to 4.0 in the water washing step for the total water washing processing time of from 30 to 90 seconds. According to the process of the invention, the storage stability of color images obtained after processing and/or after lapsing a time does not reduce even when the water washing processing time is shortened.Type: GrantFiled: November 7, 1988Date of Patent: April 3, 1990Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Takatoshi Ishikawa
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Patent number: 4914005Abstract: The reduction of cyan image dye to a leuco compound in a color photographic element by ferrous ion contained in a bleach processing solution is inhibited by the presence in the element of a polymeric latex having recurring units that are derived from certain lower alkoxyacrylate monomers optionally copolymerized with recurring units derived from certain acrylic ionomers.Type: GrantFiled: August 11, 1989Date of Patent: April 3, 1990Assignee: Eastman Kodak CompanyInventors: Philip T. S. Lau, Ping W. Tang, Stanley W. Cowan
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Patent number: 4891309Abstract: A process for producing a silver halide photographic paper that has on a support at least one photographic constituent layer incorporating a silver halide developing agent and at least one photographic constituent layer containing both a polymer latex and an emulsified dispersion of an oil-soluble fluorescent brightener dissolved in a high-boiling point organic solvent wherein said emulsified dispersion is preliminarily mixed with said polymer latex, the resulting mixture then being incorporated in a selected photographic constituent layer.Type: GrantFiled: June 3, 1988Date of Patent: January 2, 1990Assignee: Konica CorporationInventors: Yutaka Uesawa, Akira Kobayashi, Isamu Morimoto
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Patent number: 4853321Abstract: A method of forming a color image and a silver halide color photographic material comprising a reflective support having thereon at least one light-sensitive layer containing at least one coupler which forms a dye upon a coupling reaction with an oxidation product of an aromatic primary amine color developing agent and a silver halide emulsion which contains at least 80% by mol of silver chloride and substantially no silver iodide the method comprising processing with a color developing solution which contains not more than 0.002 mol of a bromine ion per liter and substantially no benzyl alcohol for a development time of not more than 2 minutes and 30 seconds in the presence of at least one compound represented by the following formulae (I), (II), or (III), as defined in the specification.The method of forming a color image and the silver halide color photographic material according to the present invention enable rapid processing to be conducted while controlling the fog formation with high sensitivity.Type: GrantFiled: May 19, 1987Date of Patent: August 1, 1989Assignee: Fuji Photo Film, Co., Ltd.Inventors: Yasuhito Momoki, Masahiro Asami, Nobuo Sakai, Shigeaki Otani
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Patent number: 4853318Abstract: A process for processing color photographic papers using a color developer substantially free from benzyl alcohol and containing a compound represented by formula (I) ##STR1## wherein Z represents an atomic group forming an aromatic nucleus is disclosed. In the process, the formation of color stains is greatly reduced even in the case of shortening the processing times for the blix step and the wash and/or stabilization step after color development.Type: GrantFiled: February 17, 1987Date of Patent: August 1, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Yoshihiro Fujita, Hiroshi Fujimoto, Takatoshi Ishikawa, Shinzo Kishimoto
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Patent number: 4851326Abstract: A silver halide color photographic material having at least one silver halide emulsion layer on a reflective support is, after having been imagewise exposed, subjected to color development with a color developer which does not substantially contain benzyl alcohol and which contains a bromide ion in an amount of 4.times.10.sup.-3 mol/liter or less, for a period of time of 2 minutes or less, to obtain a color images with a high colored density. The silver halide color photographic material specifically has at least one silver chlorobromide emulsion layer which does not substantially contain silver iodide and which contains silver chloride in an amount of 50 mol % or more.In the color images thus formed by the present process, the colored density is high and the fog is less.Type: GrantFiled: February 24, 1987Date of Patent: July 25, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Junya Nakajima
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Patent number: 4840878Abstract: A method for forming a color image is disclosed, which comprises imagewise exposing a multi-layer silver halide color photographic material comprising a reflective support having provided thereon at least three silver halide emulsion layers different in color sensitivity, each of which separately contains at least one coupler selected from a specific combination of cyan, magenta, and yellow couplers, and processing the exposed material with a color developing solution containing substantially no benzyl alcohol for a period of not more than 2 minutes and a half. A color image excellent in color reproducibility and preservability can be obtained rapidly without using benzyl alcohol.Type: GrantFiled: September 30, 1988Date of Patent: June 20, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Hirose, Nobuo Furutachi, Kozo Aoki, Kiyoshi Nakazyo, Genichi Furusawa
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Patent number: 4798783Abstract: 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: November 6, 1987Date of Patent: January 17, 1989Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Hiroshi Fujimoto, Nobutaka Ohki, Morio Yagihara
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Patent number: 4797350Abstract: A process for forming a dye image is disclosed, in which a silver halide photographic light-sensitive material having a silver halide emulsion layer is developed by a color developer comprising an aromatic primary amine and an N,N- dialkylhydroxylamine. The silver halide emulsion layer contains a hydrophobic dye-forming coupler and a compound selected from the group consisting of compounds having a sterically hindered phenol group and polyalkylpiperidine compounds or the water soluble acid salt thereof. The dye image having a high maximum density and a high light-fastness can be obtained when the color developer without benzyl alcohol is used.Type: GrantFiled: April 6, 1987Date of Patent: January 10, 1989Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Keiji Ohbayashi, Shigeo Chino, Mitsuhiro Okumura, Kaoru Onodera
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Patent number: 4791048Abstract: A color image is formed by subjecting a silver halide photosensitive material comprising at least a photosensitive silver halide, a two equivalent coupler, a binder, and a substantially water-insoluble basic metal compound on a support, to development with a processing solution comprising a complexing compound capable of complexing reaction with the metal in ionic form of said substantially water-insoluble basic metal compound in the presence of water to release a base.Type: GrantFiled: February 19, 1987Date of Patent: December 13, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Hirai, Yoshiharu Yabuki, Haruhiko Iwano
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Patent number: 4783394Abstract: A color image forming process is described, which comprises developing an imagewise exposed silver halide color photographic material with a color developer containing an aromatic primary amine developing agent and being substantially free of benzyl alcohol for a period of up to about 2 minutes and 30 seconds, wherein the silver halide color photographic material comprises a reflective support having thereon a blue-sensitive silver halide emulsion layer containing a yellow color-forming coupler, a green-sensitive silver halide emulsion layer contaning a magenta color-forming coupler, and a red-sensitive silver halide emulsion layer containing a cyan color-forming coupler in this order, the material further containing light-insensitive hydrophilic colloid layers between the blue-sensitive silver halide emulsion layer and the green-sensitive silver halide emulsion layer and between the green-sensitive silver halide emulsion layer and the red-sensitive silver halide emulsion layer and at least one light-insensitType: GrantFiled: April 10, 1987Date of Patent: November 8, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Takeshi Hirose, Kiyoshi Nakazyo, Hideaki Naruse
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Patent number: 4774167Abstract: A method for processing a silver halide color photographic material is provided, which comprises subjecting an imagewise exposed silver halide color photographic material having at least one silver halide emulsion layer on a reflective support to color development for a period not exceeding 2 minutes and 30 seconds using a color-developing solution containing substantially no benzyl alcohol, a sulfite in a concentration of 8.times.10.sup.-3 mol/liter or less, and a hydroxylamine in a concentration of 1.5.times.10.sup.-2 mol/liter or less, thereby achieving high color densities of the developed images and reduced fog. The effects of this method are particularly significant in photographic paper containing a pyrazoloazole type magenta coupler.Type: GrantFiled: February 24, 1987Date of Patent: September 27, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshio Koshimizu, Takatoshi Ishikawa, Shinji Ueda
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Patent number: 4753868Abstract: A process for processing a silver halide color photographic material is described, comprising developing an imagewise exposed light-sensitive material and then bleach-fixing it, wherein the light-sensitive material contains at least one sensitizing dye selected from three particular types of sensitizing dye compounds, and a bleach-fixing solution contains iodide ions in an amount exceeding 1.2.times.10.sup.-3 gram ion per liter of solution.Type: GrantFiled: April 7, 1987Date of Patent: June 28, 1988Assignee: Fuji Photo Film Co., Ltd.Inventors: Kensuke Goda, Akio Mitsui
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Patent number: 4748105Abstract: A method of processing of a silver halide color photographic light-sensitive material is disclosed. The color photographic material to be processed comprises a support and photographic component layers including a blue-sensitive, green-sensitive and red-sensitive silver halide emulsion layers, and at least one of the photographic emulsion layers comprises a silver halide containing 0.5 to 25 mol % of silver iodide. The total thickness of the photographic component layers is from 8 to 25 .mu.m and the swelling rate T1/2 of this layers is not more than 25 sec. At least one of the emulsion layers contains a specific coupler. The color photographic material is processed with a bleach-fixing solution containing an organic acid ferric complex after a developing treatment.The processing by this invention provides high sensitivity and minimized cyan dye loss of the photographic material.Type: GrantFiled: September 24, 1986Date of Patent: May 31, 1988Assignee: Konisiroku Photo Industry Company, Ltd.Inventors: Shinzi Kadota, Shigeharu Koboshi, Moeko Higuchi
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Patent number: 4738917Abstract: A method for processing a silver halide photographic material by processing a silver halide color photographic light-sensitive material containing at least a silver halide emulsion layer comprising a silver halide grain essentially consisting of silver chlorobromide and a binder having a swelling rate of T 1/2 of 2 sec. to 30 sec. The color developer contains a n-hydroxyalkyl-p-phenylenediamine derivative at a temperature not less than 30.degree. C. for a time not more than 150 sec. The time and temperature are effective to process the silver halide color photographic light-sensitive material without decreasing the stability of the resulting dye image.Type: GrantFiled: May 15, 1986Date of Patent: April 19, 1988Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Shigeharu Koboshi, Satoru Kuse, Kazuhiro Kobayashi, Masao Ishikawa, Masayuki Kurematsu
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Patent number: 4727015Abstract: A photographic element comprising a support having thereon at least one silver halide emulsion layer having associated therewith a dye-forming coupler and an organosilane, nonhydrolyzable in an alkaline medium, wherein:(a) one or two aryloxy groups are attached to the silicon atom of the silane either directly or indirectly through an alkylene group or an alkyleneoxy group, and(b) each aryloxy group is attached directly or indirectly through a single linking group to an aryl group substituted with a hydroxy, hydroxyalkoxy, organosilyloxy, organosilylalkoxy or organosilyloxyalkoxy group.Use of the compounds provides an improvement in density and contrast.Type: GrantFiled: January 2, 1987Date of Patent: February 23, 1988Assignee: Eastman Kodak CompanyInventor: Christopher P. Moore
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Patent number: 4724197Abstract: A color photographic recording material contains at least one silver halide emulsion layer which is divided into a partial layers of different sensitivity, at least one relatively high-sensitivity partial layer containing a synthetic polymer and gelatin in a ratio by weight of from 30:70 to 80:20.Type: GrantFiled: May 30, 1986Date of Patent: February 9, 1988Assignee: Agfa Gevaert AktiengesellschaftInventors: Reinhart Matejec, Wolfgang Himmelmann, Gunter Helling
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Patent number: 4636460Abstract: Photographic recording materials which contain a developer substance or a precursor thereof produce better results if in addition they contain a sulphite, a disulphite or a compound capable of releasing sulphite in the photographic material.Type: GrantFiled: June 11, 1985Date of Patent: January 13, 1987Assignee: Agfa Gevaert AktiengesellschaftInventors: Heinz Meckl, Helmut Kampfer, Helmut Haseler
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Patent number: 4623612Abstract: An improved method of developing silver halide photographic light-sensitive materials comprising at least one silver halide emulsion layer on a support is disclosed. In the improvement, said silver halide emulsion layer contains core/shell type silver halide grains having a shell thickness of 25 to 150 .ANG. wherein the surface of the core is subjected to chemical sensitization treatment and the surface of the shell is not subjected to chemical sensitization, and a developing solution contains a solvent for silver halide. It is possible to carry out spectral sensitization without causing a reduction in intrinsic sensitivity and to provide high-speed silver halide light-sensitive materials which are excellent in anti-fading property of latent images and excellent in stabilization with the passage of time using the above-described improved method.Type: GrantFiled: October 21, 1985Date of Patent: November 18, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshihiro Nishikawa, Hatsumi Tanemura
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Patent number: 4568635Abstract: A silver halide light-sensitive material comprising a support having provided thereon at least one silver halide emulsion layer is disclosed. The emulsion layer contains a silver halide prepared in the presence of a tetrasubstituted thiourea as a silver halide solvent and was hardened with a hardener containing a vinylsulfonyl group. Combined use of the tetrasubstituted thiourea and the hardener of the above-described kinds increases the storability of the light-sensitive material.Type: GrantFiled: January 27, 1984Date of Patent: February 4, 1986Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Yamagami, Kazunori Hasebe, Naoyasu Deguchi, Koki Nakamura, Hiroyuki Mifune
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Patent number: 4540657Abstract: Photographic coupler solvents having at least one terminal epoxy group and at least one ester or amide group are described for incorporation in photographic emulsions and elements. The solvents are preferably employed in the magenta layer to reduce background stain produced by exposure to light, heat and humidity.Type: GrantFiled: June 6, 1984Date of Patent: September 10, 1985Assignee: Eastman Kodak CompanyInventor: Sundaram Krishnamurthy
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Patent number: 4539139Abstract: A process for preparing an oil-in-water emulsion is described, comprising the steps of: adding a mixture of a hydrophobic substance and an emulsifying agent directly or after being dissolved in an organic solvent by heating in a dissolving-emulsifying tank with a high-speed agitation type dispersing means to form a hydrophobic substance solution as an oil phase, introducing water and/or an aqueous solution of gelatin into the tank through submerged inlet under the hydrophobic substance solution to form a water-in-oil emulsion, and further continuing the addition of water and/or an aqueous solution of gelatin to cause the phase inversion, whereupon the desired oil-in-water emulsion is formed. The mean particle size of the emulsion is decreased more than by the conventional emulsification method, and the particle size distribution is narrowed and made sharp.Type: GrantFiled: May 7, 1984Date of Patent: September 3, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yasunori Ichikawa, Shigeru Yamaguchi, Akira Kojima, Kazuhiko Fujiwara
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Patent number: 4430421Abstract: Method of dispersing photographic adjuvants in hydrophilic colloid compositions for forming a water-permeable photosensitive or non-photosensitive colloid layer of a photographic silver halide element with the aid of at least one high-boiling substantially water-insoluble oil-former of the class of dihydroxymethyl(5,2,1,0.sup.2,6)tricyclodecane and the carboxylic, phosphoric, or phosphonic di-ester derivatives thereof.Type: GrantFiled: December 29, 1982Date of Patent: February 7, 1984Assignee: Agfa-Gevaert, N.V.Inventors: Christian C. Van de Sande, Jan J. Vandewalle, Raphael K. Van Poucke, Andre K. Claes
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Patent number: 4430422Abstract: Method of dispersing photographic adjuvants in a hydrophilic colloid composition for forming a water-permeable photosensitive or non-photosensitive colloid layer of a photographic silver halide element with the aid of at least one high-boiling substantially water-insoluble oil-former of the class of 1,3-dialkyloxy-2-propanols and the carboxylic, phosphoric, or phosphonic esters thereof.Type: GrantFiled: December 29, 1982Date of Patent: February 7, 1984Assignee: Agfa-Gevaert, N.V.Inventors: Christian C. Van de Sande, Jan J. Vandewalle, Luc K. Martens, Raphael K. Van Poucke
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Patent number: 4426441Abstract: In a dye-forming imaging material comprising (a) a dye-forming coupler, and (b) an organic reducing agent that is capable in its oxidized form of reacting with the dye-forming coupler to form a dye, improvements are provided by a reducing agent that is a ureidoaniline silver halide developing agent free of strong electron withdrawing groups. Such an imaging material can be a photographic silver halide material. The imaging material can be a photothermographic material for producing a dye image comprising, in reactive association, (a) photographic silver halide, (b) a dye-forming coupler, and (c) an oxidation-reduction image forming combination comprising (1) an organic silver salt oxidizing agent, and (2) an organic reducing agent for the organic silver salt oxidizing agent, wherein the reducing agent is a ureidoaniline which is capable in its oxidized form of reacting with the dye-forming coupler to form a dye.Type: GrantFiled: December 3, 1982Date of Patent: January 17, 1984Assignee: Eastman Kodak CompanyInventors: Anthony Adin, Roy C. DeSelms
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Patent number: 4419440Abstract: The present invention relates to a process for the introduction of water-insoluble photographic additives, especially dye couplers, in aqueous media with the application of high-boiling organic solvents. The purpose of the invention is to develop an improved process for the introduction of hydrophobic photographic additives, especially dye couplers, in gelatin or other hydrophilic bonding agents in order to produce stable dispersions suitable for storage. This invention has the object of creating a new, high-boiling solvent for the dispersion of hydrophobic photographic additives. According to the invention, this aim is achieved by employing phosphonic acid diamides, methane bisphosphonic acid diamides, phosphonic acid esters, methane bisphosphonic acid esters or mixed phosphonic acid esters or methane bisphosphonic acid ester amides as high-boiling solvents.Type: GrantFiled: November 9, 1981Date of Patent: December 6, 1983Assignee: VEB Filmfabrik WolfenInventors: Lothar Kuhnert, Burkhard Costisella, Christoph Roth, Walter Kroha, Wolfgang Baumbach, Renate Hoppe
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Patent number: 4419439Abstract: A process for forming a photographic image comprising imagewise exposing a silver halide photographic light-sensitive material to light and processing the silver halide photographic light-sensitive material with an alkaline processing solution, wherein the improvement comprises the silver halide photographic light-sensitive material contains a compound represented by formula (I) ##STR1## wherein R represents an alkyl group having from 6 to 22 carbon atoms, a substituted alkyl group having from 6 to 22 carbon atoms, an aryl group having from 6 to 22 carbon atoms, a substituted aryl group having from 6 to 22 carbon atoms, an alkenyl group having from 6 to 22 carbon atoms, a substituted alkenyl group having from 6 to 22 carbon atoms or an aralkyl group having from 7 to 22 carbon atoms; X represents an alkyl group having from 1 to 4 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, or a halogen atom; and n represents an integer from 1 to 3.Type: GrantFiled: November 16, 1981Date of Patent: December 6, 1983Assignee: Fuji Photo Film Co., Ltd.Inventors: Shigeru Kuwazima, Eiichi Kato, Minoru Yamada
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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