Patents Examined by J. Travis Brown
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Patent number: 4500635Abstract: A color photographic silver halide light-sensitive material is described. The material includes a cyan coupler represented by the general formula (I): ##STR1## (the symbols are as described in the claims). This coupler is easily soluble in high boiling organic solvents, exhibits a high dye-forming rate in developers, and furthermore, provides color images of high fastness.Type: GrantFiled: March 14, 1984Date of Patent: February 19, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Aoki, Akira Ogawa, Osami Tanabe
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Patent number: 4500633Abstract: A silver halide photographic material having formed on a support two or more layers that have different light sensitivities but have substantially the same color sensitivity is disclosed. In the material, the layer having the highest light sensitivity contains only a compound of formula (I) as a DIR compound and at least one of the remaining layers contains at least one compound of formula (II) as a DIR compound:A--TIME--Z (I)A--Z (II)wherein A is a coupling component capable of reaction with the oxidized product of a color developing agent to release the group TIME--Z (wherein TIME represents a timing group and Z represents a development retarder). The photographic material has improved sharpness and granularity and wide latitude for exposure.Type: GrantFiled: February 15, 1983Date of Patent: February 19, 1985Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Hiroshi Menjo, Yoshikazu Watanabe
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Patent number: 4497893Abstract: A silver halide color reversal photographic material comprising a backing layer containing both gelatin of an isoelectric point of 5.5 or more and a cationic polymer is disclosed. By utilizing the particular backing layer the color reversal photographic material has increased retouchability.Type: GrantFiled: January 31, 1984Date of Patent: February 5, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoyasu Deguchi, Koji Kameyama, Taku Nakamura
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Patent number: 4496649Abstract: A color-photographic recording material which, in at least one light-sensitive silver halide emulsion layer, an interlayer and/or a protective layer, contains at least one polyalkylpiperidine compound of the formula I ##STR1## in which R is an OH group and R.sub.1 is a group of the formula II ##STR2## or of the formula ##STR3## and X is a group of the formula ##STR4## or of the formula ##STR5## Color images obtained by imagewise exposure and development of this color-photographic recording material show good stability to the action of visible and ultraviolet light.With respect to the definitions of the substituents and symbols in the formulae, reference is made to the description.Type: GrantFiled: December 15, 1983Date of Patent: January 29, 1985Assignee: Ciba-Geigy AGInventors: David G. Leppard, Jean Rody
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Patent number: 4496650Abstract: A silver halide color photographic light-sensitive material comprised of a support having thereon a silver halide emulsion layer containing a cyan color image forming polymer coupler latex is disclosed. The cyan color image forming polymer coupler latex is comprised of at least one repeating unit capable of forming a dye upon coupling with an oxidation product of an aromatic primary amine developing agent represented by the general formula (Ia) and at least one repeating unit represented by the general formula (II): ##STR1## the substituents within the general formulae are disclosed within the specification. The cyan color image forming polymer coupler latex has excellent color forming properties and the silver halide color photographic light-sensitive material which contains the latex provides a photograph in which the occurrence of color stain due to light is substantially prevented. A method of forming a color image using the silver halide color photographic light-sensitive material is also described.Type: GrantFiled: January 17, 1984Date of Patent: January 29, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Tsumoru Hirano, Makoto Umemoto
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Patent number: 4495272Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing a cyan color image forming polymer coupler latex capable of forming a dye upon coupling with an oxidation product of an artomatic primary amine developing agent wherein the cyan color image forming polymer coupler latex contains at least one repeating unit represented by the general formula (I) described below and at least one repeating unit represented by the general formula (II) described below. ##STR1## wherein R.sub.1 represents a hydrogen atom, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; and Q represents a cyan coupler residue capable of forming a dye upon coupling with an oxidized aromatic primary amine developing agent, ##STR2## wherein R.sub.2 represents a hydrogen atom, a lower alkyl group containing from 1 to 4 carbon atoms or a chlorine atom; and R.sub.3 and R.sub.Type: GrantFiled: July 12, 1983Date of Patent: January 22, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Morio Yagihara, Tsumoru Hirano, Mitsunori Hirano, Makoto Umemoto
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Patent number: 4495273Abstract: Silver halide photographic elements comprising a support on which there is spread a plurality of photosensitive layers of gelatin incorporating silver halides and containing coupling agents, and further being associatd with auxiliary gelatin layers tend to suffer from brittleness. An improved element comprises, spread over said support and under said plurality of photosensitive layers, a layer of gelatin in which there is dispersed a fragility reducing quantity of droplets of a water-immiscible high boiling organic solvent, and an adhesion promoting quantity of a vinyl addition polymer latex.Type: GrantFiled: September 3, 1981Date of Patent: January 22, 1985Assignee: Minnesota Mining and Manufacturing CompanyInventor: Mario Pannocchia
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Patent number: 4493889Abstract: A silver halide photographic light-sensitive material is disclosed. The material is comprised of a support having thereon a red-sensitive silver halide photographic emulsion layer comprising a tetramethine melocyanine dye represented by the general formula (I) and a compound represented by the general formula (II) ##STR1## the substituents within these structural formulae are defined within the specification. The material gives improved results with respect to preventing diffuse sensitization. The material also provides a red-sensitive silver halide photographic emulsion in which a decline of spectro-sensitivity in the lapse of dissolution is relatively small and which has a small amount of dye fog.Type: GrantFiled: January 23, 1984Date of Patent: January 15, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Yuji Mihara, Satoshi Nagaoka, Masaki Okazaki
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Patent number: 4491630Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing at least one kind of compound represented by the following general formula (I): ##STR1## wherein each substituent represented by R.sub.1, R.sub.2, R.sub.3, X, or Ar and m are defined within the specification, said silver halide color photographic light-sensitive material comprises a compound represented by the following general formula (II) in the silver halide emulsion layer containing the compound represented by the above general formula (I) and/or a hydrophilic colloid layer which is positioned at the remoter side than the silver halide emulsion layer from the support: ##STR2## wherein each substituent represented by Y, R.sub.4, R.sub.5, R.sub.6, R.sub.7 or Ar is defined within the specification.Type: GrantFiled: January 24, 1983Date of Patent: January 1, 1985Assignee: Fuji Photo Film Co., Ltd.Inventors: Takatoshi Ishikawa, Akio Mitsui, Masakazu Morigaki, Takashi Nakamura
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Patent number: 4490459Abstract: The invention relates to multi-layered color photosensitive materials having a support, a red photosensitive silver halide emulsion layer containing a non-diffusible cyan coupler, a green photosensitive silver halide emulsion layer containing a non-diffusible yellow coupler and a blue photosensitive silver halide emulsion layer containing a non-diffusible magenta coupler coated on a support in the order recited and wherein the green photosensitive emulsion layer contains a compound capable of reacting with an oxidized color developing agent to release a development inhibiting substance.Type: GrantFiled: May 12, 1983Date of Patent: December 25, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Toshifumi Iijima, Kaoru Onodera, Wataru Fujimatsu
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Patent number: 4490460Abstract: A silver halide color photographic material in which the photographic characteristics do not deteriorate when contacted with formaldehyde.Type: GrantFiled: March 3, 1983Date of Patent: December 25, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Satoru Shimba, Yoshikazu Watanabe, Kazuo Kato, Kiyotoshi Yamashita
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Patent number: 4490462Abstract: There is disclosed a light-sensitive silver halide photographic material comprising at least one hydrophilic colloid layer containing at least one compound represented by the following general formula [I]: ##STR1## wherein R.sup.1, R.sup.2 and R.sup.3 have the same meanings as defined in the specification.The light-sensitive silver halide photographic material according to this invention has excellent bacteriocidal properties and does not adversely affect photographic performance.Type: GrantFiled: March 21, 1983Date of Patent: December 25, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Yasushi Kawaguchi, Kiyomitsu Mine, Keiko Ide, Yukie Yamashita, Soichiro Irie, Yotaro Hirao
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Patent number: 4490463Abstract: Alkanediyl bridged benzimidazolo monomethine cyanine dyes are disclosed wherein at least one benzimidazolo nucleus is provided with an electron-withdrawing group. A disclosed preparation of the dyes includes producing an electron-withdrawing group substituted bis(2-nitrophenyl)-2-R.sup.1 -propanediamide, where R.sup.1 is hydrogen or alkyl; converting the nitro groups to primary amine substituents; removing the elements of water to effect ring closure; and thereafter providing the -CR.sup.1 - linked benzimidazole nuclei so formed with an N,N'-alkanediyl bridging group and quaternizing substituents. Dye synthesis is completed by reducing the -CR.sup.1 - linking group to the corresponding methine. The dyes are useful as sensitizers in silver halide emulsions and photographic elements.Type: GrantFiled: March 3, 1983Date of Patent: December 25, 1984Assignee: Eastman Kodak CompanyInventor: David P. Gilbert
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Patent number: 4489155Abstract: In a silver halide color photographic material is disclosed. The material is comprised of a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer. The granularity of the material is improved by incorporating a non-diffusible coupler capable of forming a properly smearing diffusible dye by causing a reaction with the oxidation product of a color developing agent and a colorless competing compound capable of capturing the oxidation product of a color developing agent in at least one of the foregoing silver halide emulsion layers.Type: GrantFiled: July 5, 1983Date of Patent: December 18, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Kei Sakanoue, Shigeo Hirano, Keiichi Adachi
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Patent number: 4483918Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material having at least one layer containing at least one kind of 5-pyrazolone type 2-equivalent magenta coupler represented by the following general formula (Ia): ##STR1## wherein W represents phenyl substituted with at least one halogen, alkyl, alkoxy, alkoxycarbonyl or cyano; Y represents acylamino or anilino; and Z represents aryloxy, alkoxy, heterocyclic oxy, alkylthio, arylthio, heterocyclic thio, acylthio, acylamino, sulfonamido, alkoxycarbonylamino, aryloxycarbonylamino or nitrogen containing heterocyclic ring which is bonded to the active position of the pyrazolone ring through the nitrogen atom, and at least one kind of compound represented by the following general formula (II): ##STR2## wherein R.sub.1 represents substituted or unsubstituted alkyl, aralkyl, cycloalkyl or alkenyl; R.sub.Type: GrantFiled: December 14, 1982Date of Patent: November 20, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Nobuo Sakai, Yoshimasa Aotani, Yoshiharu Yabuki, Nobuo Furutachi
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Patent number: 4482629Abstract: There is disclosed a light-sensitive silver halide photographic material containing a compound represented by the formula (I): ##STR1## wherein G, R.sub.1, R.sub.2 and X have the same meanings as defined in the specification.The 1-naphthol coupler which is contained in the light-sensitive silver halide photographic material is high in reactivity with an oxidized product of a color forming developing agent and can efficiently impart imagewise photographic effects to light-sensitive silver halide photographic materials.Type: GrantFiled: March 16, 1983Date of Patent: November 13, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Satoshi Nakagawa, Hiroshi Sugita, Shuzi Kida, Morito Uemura, Ken-ichi Kishi
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Patent number: 4481268Abstract: A method of forming a photographic azo or azamethine dye image in an exposed photographic silver halide element, the method of comprising the steps of (a) developing the imagewise exposed material to form an imagewise pattern of oxidized color developing agent, (b) reacting the oxidized color developing agent with a color coupler to produce an image dye, characterized in that at least one of the color developing agent and the color coupler possesses a metal chelating site such that the image dye is capable of forming a bi-, tri- or higher-dentate metallized dye, and (c) contacting the image dye with polyvalent metal ions to form a metallized dye image. Specified color developing agents include heterocyclic substituted hydrazides and specified couplers include benziso-oxazolones and 2H-pyrazolo-[3,4-b]pyridines in addition to more conventional compounds.Type: GrantFiled: April 29, 1983Date of Patent: November 6, 1984Assignee: Eastman Kodak CompanyInventors: Joseph Bailey, David Clarke, Michael W. Crawley, Peter D. Marsden, Jasbir Sidhu
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Patent number: 4481290Abstract: A color photographic silver halide light-sensitive material is described, containing at least one member of the compounds represented by the general formula (I-a) and (I-b) in at least one layer thereof: ##STR1## (wherein all the symbols are defined in the appended claims). This color light-sensitive material can be subjected to rapid photographic processing; i.e., the compounds of the general formula (I-a) and (I-b) act as bleach accelerators, making it possible to perform rapid photographic processing without exerting adverse influences on photographic characteristics.Type: GrantFiled: March 29, 1983Date of Patent: November 6, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Shinzo Kishimoto, Kiyohiko Yamamuro
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Patent number: 4480024Abstract: Photothermographic systems have not been useful in combination with X-ray purposes because of low speed, poor resolution and poor contrast. A particularly designed photothermographic element in combination with a rare-earth intensifying screen provides a high quality, fast, high resolution photothermographic radiographic system.Type: GrantFiled: October 21, 1983Date of Patent: October 30, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventors: Thomas D. Lyons, Gregory J. McCarney
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Patent number: 4480028Abstract: Silver halide photographic material having at least one light sensitive silver halide emulsion layer, at least one non-light sensitive hydrophilic colloidal layer, and optionally a third type of layer, wherein at least one of said emulsion layers, colloid layers, or third type of layers has, in a single layer, both a magenta coupler of Formula I and a development inhibitor releasing compound having a development inhibitor radical of Formula II or III, said Formula is wherein R.sub.1 is selected from benzamido, anilino, and phenylureido, each having a sulfonamido group and R.sub.2 is selected from aryl and heterocyclic groups; said Formula II is ##STR1## wherein R.sub.3 is selected from hydrogen, halogen, acylamino, alkyl, benzothiazolinylidenamino and phenyl substituted alkoxy; said Formula III is ##STR2## wherein X is a group of non-metallic atoms necessary to complete, together with the C.dbd.N group, a five or six membered heterocyclic ring.Type: GrantFiled: January 28, 1983Date of Patent: October 30, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Kazuo Kato, Yoshikazu Watanabe, Kenji Kumashiro, Satoru Shimba