Open Chain Keto-methylene Coupler Patents (Class 430/556)
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Patent number: 8481252Abstract: Silver halide photographic photosensitive materials are disclosed. A silver halide photographic photosensitive material has a support, and on or above the support, a red-sensitive silver halide emulsion layer, a first interlayer, a green-sensitive silver halide emulsion layer, a second interlayer, and a blue-sensitive silver halide emulsion layer in this order from the support, wherein the first interlayer includes a chelating agent and another silver halide photographic photosensitive material has, in the following order, a support, and provided on or above the support, a first interlayer containing a chelating agent, a blue-sensitive silver halide emulsion layer, a second interlayer, a red-sensitive silver halide emulsion layer, a third interlayer, a green-sensitive silver halide emulsion layer, and a protective layer.Type: GrantFiled: November 27, 2009Date of Patent: July 9, 2013Assignee: FUJIFILM CorporationInventors: Hiroya Yoshioka, Hidekazu Sakai, Shigeru Shibayama
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Patent number: 7687229Abstract: A silver halide color photographic light-sensitive material having, on a support, at least each one light-sensitive silver halide emulsion layers containing yellow-, magenta-, or cyan-dye-forming-coupler, and at least one light-insensitive hydrophilic colloid layer, wherein at least one of the dye-forming couplers is a dye-forming coupler that forms an azomethine dye having a solubility of 1×10?8 mol/L to 5×10?3 mol/L in ethyl acetate; and an image forming method using the light-sensitive material.Type: GrantFiled: August 23, 2005Date of Patent: March 30, 2010Assignee: FUJIFILM CorporationInventors: Yasuaki Deguchi, Kiyoshi Takeuchi, Mamoru Sakurazawa, Makoto Yamada, Takehiko Satou
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Patent number: 7556918Abstract: A silver halide color photographic light-sensitive material, having at least one each of blue-, green-, and red-sensitive emulsion layers containing yellow, magenta, and cyan couplers, respectively, on a support; wherein said blue-sensitive emulsion layer contains at least one coupler of formula (I); and wherein the light-sensitive material satisfies expression a-1) and/or b-1): wherein, Q forms a 5- to 7-membered ring with the —N?C—N(R1)-; R1 and R2 each are a substituent; m is 0 to 5; and X is a hydrogen atom, or a coupling split-off group; 0.5?Dmax(UV)/Dmin(UV)?1.1??a-1) wherein Dmax(UV)/Dmin(UV) is the smallest of the value in a wavelength range of 340 to 450 nm; 1300?(B?C)/A?20000??b-1) wherein B is yellow Dmax, C is yellow Dmin; and A is an amount mol/m2 of the coupler of formula (I).Type: GrantFiled: December 31, 2007Date of Patent: July 7, 2009Assignee: FUJIFILM CorporationInventors: Hiroyuki Yoneyama, Akira Ikeda, Shin Soejima, Kiyoshi Takeuchi, Naoto Matsuda
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Patent number: 7527922Abstract: A silver halide color photographic light-sensitive material having, on a support, at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, characterized in that at least one of the silver halide emulsion layers contains a silver halide emulsion having a silver chloride content of 90 mole % or above, the silver halide emulsion contains at least one kind of selenium compound, and the silver halide emulsion layer containing the silver halide emulsion has a characteristic curve satisfying the following relation (1); 2.0??H/?L?0.5??Relation (1) wherein ? represents a gradient of the characteristic curve, ?H represents a gradient in the case of 1×10?6-second exposure and ?L represents a gradient in the case of 100-second exposure.Type: GrantFiled: March 10, 2005Date of Patent: May 5, 2009Assignee: FUJIFILM CorporationInventors: Shigeru Shibayama, Toshihiro Kariya, Akito Yokozawa, Kenji Naoi, Katsuhisa Ohzeki, Hiroyuki Suzuki
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Patent number: 7429444Abstract: The present invention provides a black and white photothermographic material including at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a binder on a support, wherein the black and white photothermographic material contains a compound represented by the following formula (1) and at least one compound represented by a formula selected from the group consisting of the following formulae (2), (3), (4), and (5): wherein R1, R2, R3, and R4 each independently represent a hydrogen atom or a substituent which substitutes for a hydrogen atom on a benzene ring; and R5 represents an alkyl group, an aryl group, or a heterocyclic group; An image forming method using the black and white photothermographic material and a fluorescent intensifying screen is also provided.Type: GrantFiled: April 24, 2006Date of Patent: September 30, 2008Assignee: FUJIFILM CorporationInventor: Yasuhiro Yoshioka
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Patent number: 7425408Abstract: A silver halide color photographic light-sensitive material, having at least one each of blue-, green-, and red-sensitive emulsion layers containing yellow, magenta, and cyan couplers, respectively, on a support; wherein said blue-sensitive emulsion layer contains at least one coupler of formula (I); and wherein the light-sensitive material satisfies expression a-1) and/or b-1): wherein, Q forms a 5- to 7-membered ring with the —N?C—N(R1)—; R1 and R2 each are a substituent; m is 0 to 5; and X is a hydrogen atom, or a coupling split-off group; 0.5?Dmax(UV)/Dmin(UV)?1.1: ??a-1) wherein Dmax(UV)/Dmin(UV) is the smallest of the value in a wavelength range of 340 to 450 nm; 1300?(B?C)/A?20000: ??b-1) wherein B is yellow Dmax, C is yellow Dmin; and A is an amount mol/m2 of the coupler of formula (I).Type: GrantFiled: November 9, 2006Date of Patent: September 16, 2008Assignee: FUJIFILM CorporationInventors: Hiroyuki Yoneyama, Akira Ikeda, Shin Soejima, Kiyoshi Takeuchi, Naoto Matsuda
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Patent number: 7279271Abstract: The present invention provides a color material and a silver halide color photographic light-sensitive material, particularly, a color material and a silver halide color photographic light-sensitive material which are excellent in a coloring capability, processing stability, dye image fastness and a white background.Type: GrantFiled: March 25, 2003Date of Patent: October 9, 2007Assignee: Konica Minolta Photo Imaging Inc.Inventor: Takeshi Hakii
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Patent number: 7250249Abstract: A black and white photothermographic material including, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a silver salt of a fatty acid, a reducing agent for silver ions, and a binder, wherein the black and white photothermographic material includes a compound represented by the following formula (I) as the reducing agent and a compound represented by the following formula (BC-1) as a coupler: A black and white photothermographic material which exhibits low fog, high image density, excellent image tone, and excellent raw stock storability is provided.Type: GrantFiled: March 15, 2006Date of Patent: July 31, 2007Assignee: FujiFilm CorporationInventor: Yasuhiro Yoshioka
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Patent number: 7244551Abstract: A silver halide color photosensitive material comprising a support and, superimposed thereon, a blue-sensitive layer unit, a green-sensitive layer unit and a red-sensitive layer unit, each of these light-sensitive layer units composed of at least one silver halide emulsion layer, together with at least one non-sensitive layer, wherein compound (A) is contained in at least one layer in the silver halide color photosensitive material, compound (A) being a compound capable of releasing compound (Ac1) by oxidation coupling reaction with a color developing agent, compound (Ac1) being a heterocyclic compound which when added, is capable of enhancing the sensitivity of the photosensitive material as compared with that exhibited when not added, provided that the heterocyclic ring of the heterocyclic compound has 1 or 2 hetero atoms.Type: GrantFiled: December 23, 2005Date of Patent: July 17, 2007Assignee: Fujifilm CorporationInventors: Junichiro Hosokawa, Naoharu Kiyoto, Ryoji Nishimura, Takashi Hoshimiya, Tadashi Inaba
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Patent number: 7189501Abstract: A silver halide color photographic photosensitive material that has, on a support, at least one yellow color-forming photosensitive silver halide emulsion layer, at least one magenta color-forming photosensitive silver halide emulsion layer, and at least one cyan color-forming photosensitive silver halide emulsion layer, wherein at least one specific yellow or magenta dye-forming coupler and at least one compound represented by formula (Ph) are contained in the same layer: wherein Rb1 represents a specific functional group; and Rb2 to Rb5 each independently represent a hydrogen or halogen atom, or a specific functional group.Type: GrantFiled: December 29, 2003Date of Patent: March 13, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Toshiyuki Makuta, Hiroyuki Yoneyama, Nobuo Seto, Kiyoshi Takeuchi
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Patent number: 7175976Abstract: A silver halide color photographic light-sensitive material comprising at least one yellow color developable light-sensitive silver halide emulsion layer, at least one magenta color developable light-sensitive silver halide emulsion layer, and at least one cyan color developable light-sensitive silver halide emulsion layer, each of which is provided on a support: which comprises at least one yellow coupler of formula (I) and at least one cyan coupler of formula (A); wherein Q represents a group of non-metal atoms that form a 5- to 7-membered ring in combination with —N?C—N(R1)-, each of R1 and R2 represents a substituent, m represents an integer of 0 to 5, and X represents a hydrogen atom or a group capable of being split-off upon a coupling reaction; wherein R11 and R12 each represent an alkyl group or an aryl group, J represents an alkylene group, and X represents a hydrogen atom or a group that can split off upon a coupling reaction.Type: GrantFiled: October 21, 2004Date of Patent: February 13, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Hiroyuki Yoneyama, Yasuaki Deguchi, Naoto Ohshima, Kiyoshi Takeuchi, Akira Ikeda, Naoto Matsuda
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Patent number: 7144691Abstract: A color photographic material which contains on a support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, together with customary non-light-sensitive layers, characterized in that at least one layer contains a compound of formula (I) or (II) wherein the R1-radicals and R2-radicals are preferably methyl; and wherein the compounds of formula (II) are preferably (III) R3 is a radical —CH(CH3)—X—D, wherein X is phenylene.Type: GrantFiled: February 25, 2003Date of Patent: December 5, 2006Assignee: Ciba Specialty Chemicals CorporationInventors: Stéphane Biry, Francesco Fuso, Andreas Kramer
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Patent number: 7108963Abstract: A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a combination of a carbonamide compound, a phenolic compound, and an electron-rich compound. Such a combination provides improved dye stability.Type: GrantFiled: April 6, 2005Date of Patent: September 19, 2006Assignee: Eastman Kodak CompanyInventors: Albert J. Mura, Jr., Gary M. Russo, Shari L. Eiff, Brian Thomas
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Patent number: 7090969Abstract: A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I1: wherein L is a linking moiety; X is a heteroatom group selected from O, S, or NR? where R? is H or a substituent; w is 0 or 1; R is hydrogen or a substituent group; n is an integer from 0 to 5; and ST represents a stabilizer selected from the group consisting of: A. a thiomorpholine dioxide; B. a dialkoxy aromatic group linked through a phenolic oxygen; C. a dialkoxy aromatic group linked through the aromatic ring; D. a sulfonamido group; E. a hydroxyphenyl benzotriazole group; and F. a phenolic group.Type: GrantFiled: March 15, 2005Date of Patent: August 15, 2006Assignee: Eastman Kodak CompanyInventors: Albert J. Mura, Shari L. Eiff, Gary M. Russo
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Patent number: 6927020Abstract: A silver halide color photographic material is disclosed, comprising on a support a silver halide emulsion layer comprising an yellow dye forming coupler represented by formula (I): A—B??formula (I) wherein A is represented by formula (Ia), (Ia?), (Ia?), (Ib), (Ic), (Id), (Id?), (Ie), (Ie?), (Ie?), (If) or (If?); and B is represented by formula (II) described in the specification.Type: GrantFiled: February 5, 2004Date of Patent: August 9, 2005Assignee: Konica Minolta Holdings, Inc.Inventors: Rie Sakuragi, Satoru Ikesu, Takatugu Suzuki
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Patent number: 6887657Abstract: A silver halide color photographic photosensitive material, which containes at least one specific compound containing at least one alkenylcarbonyl group, in at least one layer on a support; and an image-forming method using the same.Type: GrantFiled: May 11, 2004Date of Patent: May 3, 2005Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Seto, Toshiyuki Makuta, Hidekazu Sakai, Hiroyuki Yoneyama, Tomonori Ichinose
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Patent number: 6824967Abstract: A method of preparing a dye solution having a high concentration and high stability, wherein a counter ion-free dye and a base having a pKa value of from 6.6 to 9.0 are dissolved in a solvent having a relative dielectric constant of at least 10 at 20° C., and a silver halide emulsion and a silver halide photographic material which are reduced in fogging by the use of the dye solution prepared in accordance with the aforesaid method.Type: GrantFiled: August 18, 2003Date of Patent: November 30, 2004Assignee: Fuji Photo Film Co., Ltd.Inventors: Tetsuo Nakamura, Katsuyuki Takada
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Publication number: 20040157173Abstract: A silver halide color photographic material is disclosed, comprising on a support a silver halide emulsion layer comprising an yellow dye forming coupler represented by formula (I):Type: ApplicationFiled: February 5, 2004Publication date: August 12, 2004Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Rie Sakuragi, Satoru Ikesu, Takatugu Suzuki
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Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound
Publication number: 20040096787Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye that can be derived from the dye-forming coupler: 1Type: ApplicationFiled: October 7, 2003Publication date: May 20, 2004Applicant: Fuji Photo Film Co., Ltd.Inventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki -
Patent number: 6649329Abstract: The present application relates to a photothermographic material comprising, on a side of a support, (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol derivative having the specific structure as reducing compound, (d) a binder, (e) a coupler compound, and (f) a compound represented by Q1—NHNH—V6 wherein Q1 is a 5- to 7-membered unsaturated ring and V6 is a carbamoyl group, etc.Type: GrantFiled: August 3, 2001Date of Patent: November 18, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Toyohisa Oya, Kazunobu Katoh
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Patent number: 6641988Abstract: A photographic element is disclosed, comprising a yellow dye forming coupler, a magenta dye forming coupler and a cyan dye forming coupler, wherein spectral reflection absorption characteristics of a yellow dye, a magenta dye and a cyan dye which are formed of the yellow dye forming coupler, the magenta dye forming coupler and the cyan dye forming coupler, respectively, meet the following requirements: 110≧&lgr;max(M)−&lgr;max(Y)≧95, 80≧&lgr;max(C)−&lgr;max(M)≧70, 0.43≧Abs600(M)≧0.38, and 0.48≧Abs550(C)≧0.35.Type: GrantFiled: January 31, 2002Date of Patent: November 4, 2003Assignee: Konica CorporationInventor: Takeshi Hakii
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Patent number: 6620580Abstract: Disclosed is a photographic element comprising a support bearing a blue light sensitive record containing at least three layers having different levels of light sensitivity arranged in the order slowest to fastest with the slowest layer closest to the support and the fastest layer closest to the light exposure source, wherein (a) all of the blue-sensitive layers are closer to the light exposure source than the layers sensitive to any other color; (b) the slowest blue light sensitive layer is at least 1.0 log E slower than the next fastest blue light sensitive layer when measured at a density of 0.15 above Dmin, and contains a particular type of cyan dye-forming development inhibitor releasing (DIR) coupler; and (c) all of the blue light sensitive layers other than the slowest blue light sensitive layer independently contain a certain type of yellow dye-forming DIR coupler. Embodiments of the invention provide improved color rendition without sacrificing blue density.Type: GrantFiled: November 14, 2001Date of Patent: September 16, 2003Assignee: Eastman Kodak CompanyInventors: Norma B. Platt, Drake M. Michno
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Patent number: 6620562Abstract: The present invention is directed to a method of scanning silver-halide-containing color photographic and photothermographic film. In particular, the present invention comprises a photographic element comprising at least one infrared imaging dye-forming agent in a blue-sensitive color layer of the element, thereby forming at least one image record in the infrared region of the imagewise exposed and developed element. This expedient leads to the formation of high quality images when scanning photographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed.Type: GrantFiled: August 13, 2001Date of Patent: September 16, 2003Assignee: Eastman Kodak CompanyInventors: James H. Reynolds, David H. Levy, Robert W. Kulpinski, Leif P. Olson, Wojciech K. Slusarek
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Patent number: 6610466Abstract: A silver halide photographic lightsensitive material comprising at least one silver halide photographic emulsion layer containing a silver halide photographic emulsion prepared by mixing a dispersion of silver halide grains, the silver halide grains exhibiting such spectral absorption maximum wavelength and light absorption intensity that, when the spectral absorption maximum wavelength is less than 500 nm, the light absorption intensity is 60 or more, while when the spectral absorption maximum wavelength is 500 nm or more, the light absorption intensity is 100 or more, with an emulsified dispersion, wherein the silver halide photographic emulsion, when agitated at 40° C. for 30 min, exhibits a variation of absorption spectrum integrated intensity ranging from 400 nm to 700 nm of 10% or less.Type: GrantFiled: August 28, 2001Date of Patent: August 26, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Masami Sakurada, Kiyoshi Morimoto, Fumitaka Ueda, Toru Yamada
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Patent number: 6599684Abstract: The present invention is directed to a photothermographic element comprising at least one imaging layer with a pyrrolotriazole coupler and a developing agent, or precursor thereof, the combination of which is capable of forming an image record in the infrared region of the light spectrum in response to a selected hue of visible light. This expedient leads to the formation of high quality images, especially when scanning photothermographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed. Also disclosed is a method for photothermographically forming a developed image comprising an infrared image record.Type: GrantFiled: August 13, 2001Date of Patent: July 29, 2003Assignee: Eastman Kodak CompanyInventors: James H. Reynolds, Leif P. Olson, Wojciech K. Slusarek, David H. Levy
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Patent number: 6593069Abstract: A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder and (e) a coupler compound on the same side of a support: wherein, in the formula (1), V1 to V4 each independently represent hydrogen atom or a substituent, and V5 represents a substituted or unsubstituted alkyl group, aryl group or heterocyclic group: Q1—NHNH—V6 (2) wherein, in the formula (2), Q1 represents a 5- to 7-membered unsaturated ring bonding to NHNH—V6 at a carbon atom, and V6 represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfonyl group or a sulfamoyl group.Type: GrantFiled: March 16, 2001Date of Patent: July 15, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Toyohisa Oya, Kazunobu Katoh, Shigeo Hirano
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Patent number: 6586167Abstract: A method for thermally forming images for plate making, which comprises forming an image for plate making by using a thermally processed image recording material comprising a silver salt of an organic acid, a reducing agent, a color image forming material and an organic binder on a support, wherein the image consists essentially of a developed silver image and a color forming dye image and the color forming dye image shows an absorbance for ultraviolet region higher than that for visible region and has a transmission density of 0.3 or more for the region of 360-450 nm. There are provided a thermally processed image recording material and method for thermally forming images that provide significant difference of ultraviolet absorption between image areas and non-image areas suitable for printing plate making.Type: GrantFiled: July 23, 2001Date of Patent: July 1, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Kazunobu Katoh, Toyohisa Oya
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Patent number: 6555306Abstract: Photographic elements are disclosed comprising a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I: wherein n=0-6 and each R is independently hydrogen, an aromatic, cyclic, linear or branched chain hydrocarbon group, NR′R″, or OR′; where R′ is an aromatic, cyclic, linear or branched chain hydrocarbon group and R″ is hydrogen or an aromatic, cyclic, linear or branched chain hydrocarbon group. Photographic elements of the present invention upon exposure and photographic processing exhibit good activity and yield dye images that have unexpected and substantial improvements in the stability of the formed image dyes.Type: GrantFiled: December 21, 2001Date of Patent: April 29, 2003Assignee: Eastman Kodak CompanyInventors: J. Ramon Vargas, Gary M. Russo
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Dye-forming coupler, silver halide photographic light-sensitive material and azomethine dye compound
Publication number: 20030073047Abstract: A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye that can be derived from the dye-forming coupler: 1Type: ApplicationFiled: March 27, 2002Publication date: April 17, 2003Inventors: Kiyoshi Takeuchi, Shigeki Uehira, Mario Aoki, Jun Ogasawara, Yasuhiro Shimada, Seiji Ichijima, Yasuaki Deguchi, Naoto Matsuda, Akira Ikeda, Hisashi Mikoshiba, Masahara Sugai, Taiji Katsumata -
Publication number: 20030064331Abstract: A color photographic silver halide material which can be developed to form a negative, at least 95 mol % of the silver halides of which consist of AgCl, and which contains at least one light-sensitive silver halide emulsion layer, the silver halide of which contains at least one compound of formulae (I), (II) and (III):Type: ApplicationFiled: November 5, 2001Publication date: April 3, 2003Inventors: Cuong Ly, Edgar Draber, Matthias Feigl, Gunter Helling, Thomas Kaluschke, Michael Missfeldt, Maria Nietgen, Heinz-Horst Teitscheid, Ralf Weimann, Heinz Wiesen
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Patent number: 6531270Abstract: This invention involves the use of ionic liquids as coupler solvents in a color or monochrome photothermographic system. The presence of an ionic liquid can increase the amount of density or dye formed. The ionic liquid may be combined with other coupler solvents.Type: GrantFiled: November 21, 2001Date of Patent: March 11, 2003Assignee: Eastman Kodak CompanyInventors: Leif P. Olson, James H. Reynolds
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Patent number: 6531273Abstract: This invention involves dispersions comprising ionic liquids and a non-ionic surfactant, optionally further comprising a photographically useful compound such as a dye-forming coupler. Such dispersions form coatings that are relatively free of physical defects, and show reduced problems such as crystallization of components like the couplers or ion pairs.Type: GrantFiled: November 21, 2001Date of Patent: March 11, 2003Assignee: Eastman Kodak CompanyInventors: Leif P. Olson, John W. Boettcher, James H. Reynolds
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Patent number: 6518006Abstract: The present invention provides a silver halide color photographic photosensitive material having superior image sharpness and film strength. Disclosed is a silver halide color photographic photosensitive material in which a yellow-developing photosensitive silver halide emulsion layer on a support contains at least one dye-forming coupler represented by the following general formula (Y-1), and at least one layer of the non-photosensitive hydrophilic colloid layers on the support contains a dispersion of solid particles of a dye represented by the following general formula [I]. In the general formula (Y-1), Y represents a nitrogen-containing heterocycle; Z represents a substituted aryl group; X represents a hydrogen atom, or a group that leaves by the reaction with an oxidized form of a developing solution. In the general formula [I], D represents a residue of a compound having a chromophoric group; X represents a dissociative hydrogen atom or a group having a dissociative hydrogen atom.Type: GrantFiled: March 12, 2001Date of Patent: February 11, 2003Assignee: Fuji Photo Film Co., Ltd.Inventors: Hidekazu Sakai, Yasuhiro Shimada
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Patent number: 6458521Abstract: The invention provides a color photographic element that contains a coupler useful for forming a neutral silver-based image. Such couplers are particularly useful to provide an auxiliary silver-based image for optically recording a sound track in color motion picture films.Type: GrantFiled: November 14, 2000Date of Patent: October 1, 2002Assignee: Eastman Kodak CompanyInventors: Philip T. Lau, Stephen P. Singer, Janet N. Younathan, Jerrold N. Poslusny, Susan D. Hill, Anabisdally I. Bodden
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Patent number: 6455241Abstract: Disclosed is a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a coupler represented by formula F-1, wherein: R1, R3 and R5 are independently selected from hydrogen or a substituent group and two of them may join to form a ring; X is hydrogen or a coupling-off group, B is hydrogen or a substituent group; Z is a substituent group, and n varies from 0-4. The element exhibits improved dye-forming activity and an improved combination of dye hue and dye stability.Type: GrantFiled: April 27, 2001Date of Patent: September 24, 2002Assignee: Eastman Kodak CompanyInventors: Thomas R. Welter, Frank D. Coms
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Patent number: 6451521Abstract: A color-photography silver halide material having a base and at least one photosensitive silver halide emulsion layer which is applied thereto and whose silver halide comprises at least 95 mol-%, preferably of 98.5%, of AgCl and contains 10−7 to 10−3 mol of at least one metal selected from indium, yttrium, lanthanum and the lanthanides per mol of silver halide is remarkable for improved low-density stability in the unexposed state.Type: GrantFiled: September 27, 2000Date of Patent: September 17, 2002Assignee: AGFA-GevaertInventors: Peter Berthaller, Matthias Feigl, Hans-Ulrich Borst
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Publication number: 20020098449Abstract: A photothermographic material comprising at least (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a reducing compound represented by the following formula (1) or (2), (d) a binder and (e) a coupler compound on the same side of a support: 1Type: ApplicationFiled: March 16, 2001Publication date: July 25, 2002Inventors: Toyohisa Oya, Kazunobu Katoh, Shigeo Hirano
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Patent number: 6413707Abstract: A photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide based yellow dye forming coupler and a compound of the following Formula I: wherein R1, R2 and R3 are each independently aromatic, cyclic, linear, or branched chained hydrocarbon groups. The invention provides photographic elements which exhibit exceptional yellow dye light stability, and which retain desirable properties derived from the use of acetanilide based yellow dye-forming couplers, particularly when used in combination with substituted phenolic and/or thiomorpholine dioxide stabilizers. In addition to stabilizing properties, compounds of Formula I have organic solvent properties, and accordingly may be advantageously used partly or totally in place of conventional high boiling permanent and/or auxiliary organic coupler solvents to disperse the acetanilide-based couplers.Type: GrantFiled: August 30, 2001Date of Patent: July 2, 2002Assignee: Eastman Kodak CompanyInventors: Kurt M. Schroeder, James S. Honan, Brian Thomas, Thomas A. Rosiek, Paul D. Yacobucci
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Publication number: 20020076661Abstract: The present invention provides a system of a digital color proof in which consistent images are obtained while minimizing density variation in spite of various variations of conditions due to the use of a silver halide light-sensitive color material, specifically, the present invention provides a method for forming proof images similar to printed images in terms of various characteristics such as the paper quality of silver halide light-sensitive materials, the dot gain, and the density.Type: ApplicationFiled: September 20, 2001Publication date: June 20, 2002Applicant: KONICA CORPORATIONInventors: Tomonori Kawamura, Shigeo Tanaka, Satoshi Nishino, Hirohide Ito, Naohito Naraoka, Naoyo Suzuki, Shinya Watanabe, Masataka Takimoto, Hideaki Sakata, Junichi Tanabe, Tetsuya Taniguchi, Naoki Nozaki, Yasushi Okubo, Koji Daifuku, Katsuji Kondo, Toshitsugu Suzuki
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Publication number: 20020058212Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith one or more dye-forming couplers and a stabilizer compound of formula (I): 1Type: ApplicationFiled: August 21, 2001Publication date: May 16, 2002Applicant: Eastman Kodak CompanyInventors: David Clarke, Llewellyn J. Leyshon, Christopher P. Moore
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Patent number: 6329130Abstract: Disclosed is a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a yellow dye-forming coupler having formula I: wherein each A is independently a divalent group selected from the divalent groups consisting of aryl and —C(R1)(R2)—, in which each R1 and R2 is independently selected from the group consisting of hydrogen, alkyl, alkoxy, aryloxy, heterocyclic, and aryl groups, and one A can be joined to form a ring with another A or with R3, and m is from 2 to 6; R3 is selected from the group consisting of hydrogen, alkyl, heterocyclic, and aryl groups, provided that R3 may form a ring with A or is a group joined to R4 to form a heterocyclic five- or six-membered ring; R4 is selected from the group consisting of aryl, heterocyclic, and alkyl groups and may form a heterocyclic ring bonded to R3; Y is selected from the group consisting of —SO2—, —C(═O)—, —C(═O)NR9R10—, —C(&boType: GrantFiled: December 22, 2000Date of Patent: December 11, 2001Assignee: Eastman Kodak CompanyInventors: Barbara B. Lussier, Michael J. Proseus, Paul A. Burns, Brian Thomas, Frank D. Coms
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Patent number: 6312881Abstract: In accordance with one embodiment of the invention, a photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide-based yellow dye forming coupler and a stabilizer compound of the formula S-I: wherein R0 represents an aryl or heterocyclic group; Ra is H or a substituent group; L represents an alkylene linking group and p represents 0 or 1; and Rb is a substituent group, provided that substituent groups represented by Ra and Rb may be joined to form a ring. The presence of substituted amine compounds of formula S-I improves the efficiency of dye formation reaction for acetanilide-based couplers. When used in combination with known bis-phenolic stabilizers, substantial improvements in the light stability of the image dyes can be also be obtained.Type: GrantFiled: January 14, 2000Date of Patent: November 6, 2001Assignee: Eastman Kodak CompanyInventors: Danuta Gibson, James S. Honan, Llewellyn J. Leyshon, Thomas A. Rosiek, Brian Thomas
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Patent number: 6221573Abstract: The specification discloses a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a dye-forming coupler having Formula F-1: wherein: (1) W1 is a heteroatom or heterogroup; (2) X is hydrogen or a coupling-off group other than halogen, and Y and Z are independently selected from hydrogen or a substituent; (3) W4 and W5 are, independently, either hydrogen or a substituent; (4) R1 is hydrogen or a substituent group, other than unsubstituted phenyl, and is attached through the oxygen atom to a position meta or para to the carbon link to the heterocycle containing W1; and (5) each R2 is an independently selected substituent, and n is 0 to 4; provided that any substituents may join to form a ring.Type: GrantFiled: October 27, 1999Date of Patent: April 24, 2001Assignee: Eastman Kodak CompanyInventors: Faraj Abu-Hasanayn, Beata Owczarczyk, Thomas R. Welter
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Patent number: 6194131Abstract: A silver halide color photographic lightsensitive material comprising a compound represented by general formula (I): COUP—A—E—B (I) wherein COUP represents a coupler residue capable of coupling with a developing agent in an oxidized form, E represents an electrophilic moiety, A represents a single bond or a divalent connecting group which can release B while forming a 4 to 8-membered ring through an intramolecular nucleophilic substitution reaction between the electrophilic moiety E and a nitrogen atom of a coupling product that is obtained by the reaction of COUP with the developing agent in an oxidized form, wherein the nitrogen atom originates from the developing agent and directly binds to a coupling position of COUP, provided that A may be bound to COUP at the coupling position or position other than the coupling position of COUP, and B represents a photographically inert group.Type: GrantFiled: May 24, 2000Date of Patent: February 27, 2001Assignee: Fuji Photo film Co., Ltd.Inventors: Takayuki Ito, Hidetoshi Kobayashi
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Patent number: 6171773Abstract: A colour photographic material which contains at least one pyrrolo[1,2-b]-1,2,4-triazole cyan coupler of the formula (I) in which R1, X and Y have the meaning stated in the description, is distinguished by excellent reproduction of blue and cyan tones if a 2-equivalent yellow coupler is added to the layer containing the couplers of the formula (I).Type: GrantFiled: May 4, 1999Date of Patent: January 9, 2001Assignee: Agfa N.VInventors: Peter Bergthaller, J{umlaut over (u)}rgen Jung, Edgar Draber, Jörg Hagemann, Ulrich Nickel
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Patent number: 6171776Abstract: A colour photographic silver halide material in which at least one of the blue-sensitive silver halide emulsions is spectrally sensitised with a mixture of at least one seansitising dye of the formula (I) and at least one sensitising dye of the formula (II): in which R1 means an optionally substituted thienyl, pyrroly, indolyl, furamyl or phenyl, in which R5, R6, R7, mean H or R5 and R6 together or R6 and R7 together mean the remaining members of a fused benzo ring and the residual substituent means H and R2, R3, R4, R8, R9, R10 and M have the meaning stated in the description, is distinguished by elevated sensitivity and improved latent image stabilitity.Type: GrantFiled: December 10, 1998Date of Patent: January 9, 2001Assignee: Agfa N.V.Inventors: Cuong Ly, Michael Missfeldt, Heinz-Horst Teitscheid, Edgar Draber
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Patent number: 6156489Abstract: A silver halide photographic light sensitive material comprising a transparent support and provided thereon a light sensitive layer containing a yellow coupler, a magenta coupler and a cyan coupler to form a monochromatic image upon color development after exposure, wherein a relative coupling rate of the magenta coupler with an oxidation product of a color developing agent is higher than that of the yellow or cyan coupler.Type: GrantFiled: June 9, 1998Date of Patent: December 5, 2000Assignee: Konica CorporationInventors: Toshihiko Iwasaki, Masaru Iwagaki
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Patent number: 6140032Abstract: A silver halide color photographic light-sensitive material characterized in that the light-sensitive material contains a yellow coupler represented by the following Formula [I]; ##STR1## wherein R.sub.1 represents an alkyl group, a cycloalkyl group, an amino group, a heterocyclic group or an aryl group, R.sup.2 represents a straight chain or branched unsubstituted alkyl group having not less than 2 carbon atoms, X represents a chlorine atom, an alkoxy group or aryloxy group. Y represents an acylamino group or a chlorine atom when R.sub.1 represents an alkyl group, a cycloalkyl group, an amino group or a heterocyclic group , and Y represents an sulfonylamino group, a chlorine atom or oxycarbonyl group when R.sub.1 represents an aryl group. n represents an integer of 0 to 4. When n is not less than 2, plural Y may be either the same or different.Type: GrantFiled: November 19, 1998Date of Patent: October 31, 2000Assignee: Konica CorporationInventors: Satoru Ikesu, Katsuji Ota, Kazuhiko Kimura
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Patent number: 6127107Abstract: A photographic recording material for use in redox amplification comprises a support having thereon a plurality of emulsion layers, each emulsion layer containing a color-forming coupler, and wherein the activity of the couplers is from 45 to 70% as measured by the citrazinic acid method. These materials may be developed by a redox development step which may be followed by a bleach-fix step without any intervening step. Staining is eliminated with the use of these photographic materials.Type: GrantFiled: February 2, 2000Date of Patent: October 3, 2000Assignee: Eastman Kodak CompanyInventors: Adrian J. Codling, John R. Fyson
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Patent number: 6120981Abstract: Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a dye-foaming coupler compound and a sulfonamido compound (a) bearing on the sulfur atom of the sulfonamido group an alkyl group and (b) bearing on the nitrogen atom of the sulfonamido group both a hydrogen atom that exhibits a pKa value of less than 9 and a second substituent that is either (1) an aryl group containing one or more electron withdrawing substituents for which the sum of the Hammett's values (.SIGMA..sigma..sub.p) is greater than 0.5, or (2) a heteroaryl group.Type: GrantFiled: December 31, 1998Date of Patent: September 19, 2000Assignee: Eastman Kodak CompanyInventors: David Hoke, Jared B. Mooberry, Kathleen M. Yahn, Kevin P. Dockery, David T. Southby