Patents Examined by Travis Brown
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Patent number: 4435503Abstract: A silver halide color photographic light-sensitive material containing a 4-equivalent magenta color image forming polymer coupler latex and at least one compound capable of reacting with and fixing formaldehyde gas. The silver halide color photographic light-sensitive material has good film strength and a reduced layer thickness. It is possible to avoid the decrease in color density and the formation of fog normally present when the silver halide color photographic light-sensitive material is stored for a long period of time in contact with formaldehyde gas.Type: GrantFiled: July 13, 1982Date of Patent: March 6, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Keiji Mihayashi, Tadashi Ogawa, Morio Yagihara
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Patent number: 4434225Abstract: Disclosed is a light-sensitive silver halide color photographic material having at least one light-sensitive silver halide emulsion layer on a support, characterized in that said light-sensitive silver halide emulsion layer contains a cyan coupler represented by the formula [I] shown below, and said light-sensitive silver halide emulsion layer and/or a layer contiguous to said light-sensitive silver halide emulsion layer contains at least one of a timing DIR compound represented by the formula [II] shown below and a non-timing type DIR compound: ##STR1## wherein X, R.sub.1 and R.sub.2 are as defined in the specification; ##STR2## wherein Cp, TIME and Z are as defined in the specification.Type: GrantFiled: February 22, 1983Date of Patent: February 28, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Hiroshi Sugita, Yasuo Tsuda, Kenji Ito, Satoru Shimba
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Patent number: 4433046Abstract: The invention relates to silver halide photographic materials comprising a support and a light sensitive silver halide emulsion layer containing as a cyan-dye-forming coupler a compound of the formula ##STR1## wherein R.sub.1 is a halogen atom, an alkyl, alkoxy or acylamino group; R.sub.2 and R.sub.3 are individually a hydrogen atom, an alkyl or aryl group and R.sub.2 and R.sub.3 may form a heterocyclic group by the condensation thereof; n is an integer of 0-3; R.sub.4 is an alkyl, aryl, acyl or heterocyclic group; R.sub.5 is an alkyl, aryl, alkoxy, amino, acylamino, sulfonamide, carboxy, alkoxycarbonyl, carbamoyl, cyano or halogenated alkyl group; and R.sub.6 is a hydrogen atom or an alkyl, alkoxy, carboxy, carbamoyl, hydroxy, acyloxy, nitro, amino, azo, acylamino, sulfonamide or acyl group.Type: GrantFiled: May 28, 1982Date of Patent: February 21, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Morito Uemura, Kenichi Kishi, Satoshi Nakagawa, Shuji Kida
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Patent number: 4431728Abstract: There is disclosed a silver halide photographic light-sensitive material which comprises a support, a combination of an unfogged surface latent image type silver halide photographic emulsion and a material which is non-diffusible under alkali conditions and which is capable of releasing a diffusible development inhibitor or a precursor thereof as a result of cross oxidation with an oxidized product of a photographic developing agent; and a combination of an internal latent image type silver halide photographic emulsion whose silver halide grains contain therein, prior to development, fog nuclei and a dye image-forming material which is initially non-diffusible under alkaline conditions but which is capable of releasing a diffusible dye or a precursor thereof as a result of being oxidized by the oxidized product of said photographic developing agent.Type: GrantFiled: June 9, 1982Date of Patent: February 14, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Takao Abe, Tatsuhiko Kobayashi
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Patent number: 4430424Abstract: The invention relates to a color photographic light-sensitive material comprising a support and a hydrophilic colloid layer coated thereon, said layer comprising a non-diffusible coupler and a hydrophilic colloid layer having an aromatic primary amine developing agent and/or its precursor and a polymer layer coated thereon wherein said polymer is permeable to an alkaline processing liquid but less permeable to said aromatic primary amine developing agent and/or its precursor, and the diffusion rate of said aromatic primary amine developing agent and/or its precursor, when dissolved in the alkaline processing liquid, in the polymer layer is not greater than 5.times.10.sup.-8 cm.sup.2 /sec per second at room temperature.Type: GrantFiled: September 1, 1982Date of Patent: February 7, 1984Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Ken Okauchi, Tatsuhiko Kobayashi
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Patent number: 4430423Abstract: A color photographic light-sensitive material comprising a cupport having coated thereon at least one silver halide emulsion layer. The color photographic light-sensitive material contains a cyan dye forming coupler represented by the following general formula (I): ##STR1## wherein Z represents ##STR2## R represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; X represents a hydrogen atom or a group capable of being released upon an oxidative coupling reaction with a developing agent; Y represents ##STR3## --O-- or --S--; R.sup.1 and R.sup.Type: GrantFiled: December 20, 1982Date of Patent: February 7, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Aoki, Michio Ono
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Patent number: 4430425Abstract: Color photographic silver halide material which contains in at least one coupler containing silver halide emulsion layer or in a layer adjacent thereto(a) a hydroquinone of the formula ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2, R is a radical of the formula ##STR2## wherein Q is selected from the residues (1) --COZR.sub.4, wherein Z is O or NR.sub.5, and R.sub.4 is hydrogen, alkyl optionally interrupted by oxygen, cycloalkyl, alkenyl, aryl, aralkyl or a heterocyclic ring, and R.sub.5 is hydrogen or alkyl or together with R.sub.4 and the nitrogen atom to which they are bonded form a heterocyclic ring,(2) --OX, wherein X is R.sub.5 or --COR.sub.7, wherein R.sub.7 is hydrogen, alkyl cycloalkyl, alkenyl, aryl or aralkyl,(3) --NR.sub.8 R.sub.9, wherein R.sub.8 is hydrogen or alkyl, and R.sub.9 is hydrogen, alkyl or --COR.sub.7, or R.sub.8 and R.sub.9 together with the nitrogen atom to which they are bonded form a ring,(4) --P(O)(OR.sub.10 ')([O].sub.x R.sub.Type: GrantFiled: June 18, 1982Date of Patent: February 7, 1984Assignee: Ciba-Geigy AGInventor: David G. Leppard
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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: 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: 4427767Abstract: A silver halide color photographic sensitive material is disclosed. The material is comprised of a substrate having a silver halide emulsion layer position thereon and a cyan dye forming coupler. The coupler is reresented by the general formula (I): ##STR1## wherein R represents a substituted or nonsubstituted alkyl group, aryl group or heterocyclic group, X represents a group capable of releasing by an oxidative coupling reaction with a developing agent, and R.sup.1 represents a substituted or nonsubstituted alkyl group or aryl group. The coupler of the invention can be easily dissolved in a high boiling point organic solvent and makes possible production of a light sensitive material having a high dye forming rate, high maximum color density and good fastness to light. Furthermore, the couplers prevent a large decrease in density when the bleaching solution utilized has a weak oxidation ability.Type: GrantFiled: December 6, 1982Date of Patent: January 24, 1984Assignee: Fuji Photo Film Co., Ltd.Inventors: Kozo Aoki, Yoshio Seoka
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Patent number: 4427763Abstract: A color photographic recording material, in which a precursor compound for a yellow mask coupler is contained in a green-sensitive layer or in a layer adjacent thereto and in which a blue-sensitive layer is arranged between this layer and the layer support, permits very good sharpness with satisfactory speed.Type: GrantFiled: August 30, 1982Date of Patent: January 24, 1984Assignee: Agfa-Gevaert AktiengesellschaftInventors: Joachim W. Lohmann, Gunter Renner, Wolfgang Sauerteig
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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: 4425416Abstract: The invention provides a novel color filter used for an image pickup device for a color TV receiver and a method for manufacturing the color filter. More particularly, transparent layers to adhere color pattern layers to each other are not formed below second and third color pattern layers. Meanwhile, the surfaces of the precolored resin layers are exposed to a plasma atmosphere so that surfaces of color pattern layers are polymerized to form intermediate polymerized layers to separate the precolored resin layers. Therefore, blurs are eliminated from the second and third color pattern layers. Further, adhesion of the precolored resin layers is great.Type: GrantFiled: April 13, 1982Date of Patent: January 10, 1984Assignee: Matsushita Electric Industrial Co., Ltd.Inventor: Kazufumi Ogawa
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Patent number: 4425425Abstract: Radiographic elements are disclosed comprised of first and second imaging portions separated by an interposed support capable of transmitting radiation to which the second imaging portion is responsive. At least the first imaging portion includes a silver halide emulsion in which high aspect ratio tabular silver halide grains are present. Spectral sensitizing dye is adsorbed to the surface of the tabular grains. Crossover can be improved in relation to the imaging characteristics.Type: GrantFiled: September 30, 1982Date of Patent: January 10, 1984Assignee: Eastman Kodak CompanyInventors: Thomas I. Abbott, Cynthia Jones
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Patent number: 4425417Abstract: The reproduction of one or more target colors on photographic media directly by use of a light source and a selected group of color filters, such as for preparation of a multi-color pre-press color proof, each of the target colors being reproduced by:(a) illuminating the target color with the given light source or equivalent thereof and determining the proportion of the three primary colors which constitute said target color by comparing the target color to a color reference data base comprising a plurality of colors constituted of said primary colors under illumination by a like light source whereby to select from said data base a reference color most similar to the target color and thereby identify a group of one or more color filter elements usable to reproduce the reference color;(b) determining the exposure time of each color filter element required substantially to reproduce the reference color and thus the target color on the color sensitive photographic material when developed;(c) exposing undevelopedType: GrantFiled: March 1, 1982Date of Patent: January 10, 1984Inventors: Marjorie D. Ingalls, Richard D. Ingalls
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Patent number: 4423126Abstract: A new color-forming 4-(4'-secondary or tertiary-amino)anilino-1-carboxamidonaphthalene dye precursor in a photographic material and process enables formation of a dye image by means of cross-oxidation without the need for a coupling reaction. The color-forming 4-(4'-secondary or tertiary-amino)anilino-1-carboxamidonaphthalene dye precursor is useful in a photographic silver halide material for producing (i) a dye image, or (ii) a dye image and silver image. The exposed photographic material is processed to produce (a) a positive dye image, (b) a negative dye and negative silver image, (c) a negative dye image or (d) a positive dye image and a positive silver image. New naphthoquinoneimide dyes are also described.Type: GrantFiled: May 27, 1982Date of Patent: December 27, 1983Assignee: Eastman Kodak CompanyInventors: James E. Klijanowicz, Csaba A. Kovacs
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Patent number: 4421845Abstract: A silver halide photographic light-sensitive material which comprises at least one of those pyrazole compounds represented by the following general formula: ##STR1## wherein A is a group which can be eliminated in a photographic process condition; X is ##STR2## wherein R.sub.5 is a hydrogen atom or an alkyl, an aryl, an acyl or a sulfone group, which R.sub.5 group may combine together with R.sub.1 to form a condensed ring; R.sub.1 is a hydrogen atom or an alkyl, an aryl, an acyl, a sulfone, an alkoxy, or a heterocyclic residue; R.sub.2 is a hydrogen atom or an alkyl, an aryl, an alkoxy, an amino, an acid amide, a sulfonamide, a carboxyl, an alkoxycarbonyl, a carbamoyl, a cyano, or a halogenated alkyl group, R.sub.3 and R.sub.Type: GrantFiled: March 11, 1982Date of Patent: December 20, 1983Assignee: Konishiroku Photo Industry Co., Ltd.Inventors: Morito Uemura, Kenichi Kishi, Satoshi Nakagawa, Shuji Kida, Hiroshi Sugita
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Patent number: 4421847Abstract: In a process for the chain-lengthening of gelatine the gelatine is brought into contact with a hardening agent which can activate the carboxyl groups of the gelatine. The result is a partially hardened gelatine which has advantageous properties as for the production of photographic layers.Type: GrantFiled: December 11, 1981Date of Patent: December 20, 1983Assignee: Agfa-Gevaert AktiengesellschaftInventors: Heinrich Jung, Ulrich Biskup
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Patent number: 4419425Abstract: Proposed is a method for manufacturing a color filter having the steps of: forming a stripe- or lattice-shaped light-shield pattern on one major surface of a transparent glass substrate; forming a photosensitive base film on the same major surface of the glass substrate on which the light-shield pattern is formed; exposing the photosensitive base film by light radiated from the other major surface of the glass substrate, using the light-shield pattern as a mask, developing the base film to remove a nonexposed portion of the photosensitive base film immediately above the light-shield pattern and to divide the photosensitive base film along the light-shield pattern; and selectively dyeing divided base film portions to form color layers.Type: GrantFiled: May 20, 1982Date of Patent: December 6, 1983Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Kazufumi Ogawa, Isamu Kitahiro
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Patent number: 4419441Abstract: Hydrophobic substances, particularly hydrophobic additive for photographic layers such as couplers may be dispersed in an aqueous medium in a two--or more--stage process using an oil-former. In a main dispersion stage the total quantity of the hydrophobic substance is dispersed in the aqueous medium without oil-former or with only part of the total quantity of oil-former. The residual portion of oil-former is dispersed in the aqueous medium without hydrophobic substance in at least one further dispersion stage preceding or following the main dispersion stage. The oil-former used is preferably a compound or a mixture of compounds selected from triaryl phosphates, dialkyl phthalates, monoesters of .alpha.-substituted succinic acid or of hydrogenated phthalic acids and aliphatic or cycloaliphatic alcohols of at least 10 carbon atoms. The process yields dispersions of improved stability of digestion.Type: GrantFiled: April 11, 1983Date of Patent: December 6, 1983Assignee: Agfa-Gevaert AktiengesellschaftInventors: Fritz Nittel, Helmut Mader