Bypass Or Modification Of Flow Of Gaseous Fluid Mixture To Second Stage Patents (Class 96/56)
  • Patent number: 8961659
    Abstract: An electrically enhanced air filtration system is disclosed which uses rear fiber charging is disclosed. In particular, a fibrous filter may be placed in an upstream position within the system with one or more ionization arrays positioned downstream or to the rear of the fibrous filter in terms of airflow direction. The fibrous filter may include a grounded side and fiber side with the grounded side being upstream of the fiber side. The ionization array may include a plurality of electrodes each extending unidirectionally toward the fibrous filter.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: February 24, 2015
    Assignee: Carrier Corporation
    Inventor: Peter J. McKinney
  • Patent number: 8546026
    Abstract: Disclosed are a gas-liquid separator, a hydrogen generating apparatus, and a fuel cell generation system, having the same. The gas-liquid separator can include an inflow path, into which a fluid material having a liquid and a gas flows; a centrifugal path, connected to the inflow path to receive the fluid material and formed spirally such that the fluid material is separated into the liquid and the gas by difference in centrifugal forces, an outer side of the centrifugal path having stronger affinity for the liquid than an inner side of the centrifugal path; and an outflow path, connected to the centrifugal path and discharging the liquid and the gas, which have been separated in the centrifugal path. With the present invention, it is possible to efficiently separate gas such as hydrogen and liquid such as a electrolyte solution without complex devices.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: October 1, 2013
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Eon-Soo Lee, Jae-Hyuk Jang, Hye-Yeon Cha
  • Patent number: 8182590
    Abstract: A process for forming a porous nanoscale membrane is described. The process involves applying a nanoscale film to one side of a substrate, where the nanoscale film includes a semiconductor material; masking an opposite side of the substrate; etching the substrate, beginning from the masked opposite side of the substrate and continuing until a passage is formed through the substrate, thereby exposing the film on both sides thereof to form a membrane; and then simultaneously forming a plurality of randomly spaced pores in the membrane. The resulting porous nanoscale membranes, characterized by substantially smooth surfaces, high pore densities, and high aspect ratio dimensions, can be used in filtration devices, microfluidic devices, fuel cell membranes, and as electron microscopy substrates.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: May 22, 2012
    Assignee: University of Rochester
    Inventors: Christopher C. Striemer, Philippe M. Fauchet, Thomas R. Gaborski, James L. McGrath
  • Publication number: 20100092818
    Abstract: Disclosed are a gas-liquid separator, a hydrogen generating apparatus, and a fuel cell generation system, having the same. The gas-liquid separator can include an inflow path, into which a fluid material having a liquid and a gas flows; a centrifugal path, connected to the inflow path to receive the fluid material and formed spirally such that the fluid material is separated into the liquid and the gas by difference in centrifugal forces, an outer side of the centrifugal path having stronger affinity for the liquid than an inner side of the centrifugal path; and an outflow path, connected to the centrifugal path and discharging the liquid and the gas, which have been separated in the centrifugal path. With the present invention, it is possible to efficiently separate gas such as hydrogen and liquid such as a electrolyte solution without complex devices.
    Type: Application
    Filed: June 5, 2009
    Publication date: April 15, 2010
    Inventors: Eon-Soo LEE, Jae-Hyuk JANG, Hey-Yeon CHA
  • Publication number: 20090266231
    Abstract: A method and apparatus for the separation of particles from a flow of gas, where both large, heavy and small, light particles can be separated off from the gas by means of the combined effect of an electrostatic attraction force and a centrifugal force in a centrifugal separator (10) of the type that comprises a rotor (14) that has a plurality of adjacent surface elements (16) with intermediate gas flow gaps (48) and that is mounted in such a way that it can rotate in a surrounding casing (12), which casing has an inlet (18) for unclean gas and an outlet (22) for clean gas and an outlet (24) for separated-of f particles. A charging unit (44) ionizes the particles upstream of the rotor (14). An electrical field is generated between adjacent surface elements (16) of the rotor in order to attract the ionized light particles towards a face of the surface elements by means of the electrostatic force.
    Type: Application
    Filed: June 27, 2006
    Publication date: October 29, 2009
    Inventors: Peter Franzen, Claes Inge, Torgny Lagerstedt
  • Patent number: 7435288
    Abstract: The present invention relates to a system for effectively filtering particulate matter from exhaust gas. Exemplary embodiments of the invention provides a system for capturing diesel-powered vehicle particulate matter in exhaust gas, the system including: a detour channel at the interior of the entrance to the diesel particulate filter, an electrode located in front of the detour channel and operable to ionize the particulate matter, and a control unit operable to control operation of the electrode.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: October 14, 2008
    Assignee: Hyundai Motor Company
    Inventor: Kangsoo Lee
  • Patent number: 7377957
    Abstract: A method of utilizing a filter having a filter body removing solid particles from a fluid, in order to extend the life cycle of the filter body before cleaning or replacement thereof is required, characterized in applying to the fluid, upstream of the filter body, an AC electrical field of a frequency and intensity to agglomerate solid particles in the fluid reaching the filter body, such as to reduce the number of smaller particles in the fluid tending to clog the filter body. Also described are a plurality of filter constructions for extending the life cycle of the filter body in accordance with the above method.
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: May 27, 2008
    Assignees: Innovative Defense Technologies Ltd.
    Inventor: Gideon Rosenberg
  • Patent number: 6589314
    Abstract: A size preferential electrostatic agglomerator is provided for agglomerating small particles with larger “carrier” particles. The agglomerator includes an inlet for receiving a gas flow, a separator for separating the gas flow into flow streams based on the size of the particles therein, an ionization region for imparting an opposite electrical charge to each of the flow streams, an agglomeration region receiving the flow streams to facilitate the agglomeration of the oppositely charged particles, and an outlet for exhausting the gas flow containing agglomerated particles to facilitate collection, processing or other activity on the agglomerated particles. The present invention provides an efficient system for gathering large amounts of small particles in a gas flow.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: July 8, 2003
    Assignee: Midwest Research Institute
    Inventors: Andrew E. Page, Plamen Doynov
  • Patent number: 6245131
    Abstract: An electrostatic air cleaner for installation in an air-circulating system, including a flow sensor for sensing the flow of air across the electrostatic air cleaner, and a switch, responsive to the flow sensor, for operating the electrostatic air cleaner only when the flow of air exceeds a predetermined threshold. More particularly, the electrostatic air cleaner includes an electrostatic air cleaner cover unit adapted to be secured over the opening in a frame in the air circulating system which frame contains at least one removable electrostatic air cleaning cell. The cover unit has a baffle for substantially blocking the air flow between the electrostatic air cleaning cell and the cover unit. The baffle has an opening therein, and a bypass tube is aligned with the opening in the baffle. An air flow sensor is disposed in the tube for sensing the air flow through the tube. The air flow sensor preferably includes a self-heating thermistor for sensing the flow in the bypass tube.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: June 12, 2001
    Assignee: Emerson Electric Co.
    Inventors: Dennis M. Rippelmeyer, Jerry W. McElroy
  • Patent number: 4171975
    Abstract: A silver halide emulsion containing an aldehydebis type magenta coupler and an amide compound.
    Type: Grant
    Filed: February 7, 1978
    Date of Patent: October 23, 1979
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Kazuo Kato, Shizuo Saito, Hidenori Kawaguchi
  • Patent number: 4170478
    Abstract: An hydroxylamine and a member selected from the group consisting of alkanolamines which are free of carboxyl substitution, aliphatic monoamino monocarboxylic acids of up to three carbon atoms, and aminobenzoic acids, are employed in combination in a photographic color developing composition comprising a primary aromatic amino color developing agent for the purpose of retarding aerial oxidation of the developing agent. This combination can be used to replace all or part of the sulfite that is commonly employed in color developers, to thereby avoid or reduce the disadvantages resulting from the fact that sulfite competes with couplers for oxidized developing agent.
    Type: Grant
    Filed: March 6, 1978
    Date of Patent: October 9, 1979
    Assignee: Eastman Kodak Company
    Inventors: Nelson S. Case, Danny L. Wyatt
  • Patent number: 4159910
    Abstract: The present invention is related to a color photosensitive material which has a support and a silver halide photosensitive layer and contains a specific compound which acts as a fading inhibitor and also prevents Y-staining.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: July 3, 1979
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Mitsuto Fujiwhara, Takashi Sasaki, Takashi Uchida
  • Patent number: 4159245
    Abstract: A method for removing fogging and/or color mixing components formed in a color developer containing an aromatic primary amine developing agent during the development processing using the color developer which comprises contacting the color developer with an aqueous solution through a continuous fine open-cell porous diaphragm of a hydrophobic material to thereby transfer the fogging and/or color mixing components from the color developer to the aqueous solution.
    Type: Grant
    Filed: August 11, 1977
    Date of Patent: June 26, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Sachio Matsushita, Isao Shimamura, Hiroyuki Hirai, Kazuo Shirasu
  • Patent number: 4155765
    Abstract: This invention involves a color photographic material which contains a support and a hydrophilic layer containing a dye image wherein the material contains a compound represented by the following formula: ##STR1## wherein R represents an alkyl group, an alkenyl group, a cycloalkyl group, an aryl group or a heterocyclic ring; R.sub.1, R.sub.2 and R.sub.3 individually represent hydrogen, halogen, an alkyl group, an alkylthio group, an alkoxy group, an aryl group, an aryloxy group, an arylthio group, an acyl group, an acylamino group, a diacylamino group, an acyloxy group, a sulfonamido group, an alkylamino group, a cycloalkyl group or an alkoxycarbonyl group; and Z represents an atomic group or groups necessary for forming a chroman or coumaran ring; provided that R and R.sub.1 can cooperatively be cyclized to form a chroman or coumaran ring.
    Type: Grant
    Filed: July 28, 1977
    Date of Patent: May 22, 1979
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Mitsuto Fujiwhara, Takashi Sasaki, Takashi Uchida
  • Patent number: 4155764
    Abstract: A photographic color developer composition containing a color developer compound and an antioxidant wherein it contains a water-soluble enolizable .alpha.-aminocarbonyl compound as antioxidant is provided. Resistance to atmospheric oxygen of photographic color developer baths is improved.
    Type: Grant
    Filed: May 17, 1977
    Date of Patent: May 22, 1979
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Arnfried Melzer, Erwin Schon
  • Patent number: 4148657
    Abstract: Hexahydro-4,6-diimino-1,3-pyrimidine-2-thiones having a phenyl group substituent in the 1-position have been found to be antifoggants for silver halide photographic emulsions.
    Type: Grant
    Filed: October 19, 1977
    Date of Patent: April 10, 1979
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Paolo Beretta, Luigi Danello
  • Patent number: 4148656
    Abstract: A color photosensitive material comprising a support and a silver halide photosensitive layer containing compounds as represented by the following formula: ##STR1## wherein R, R.sub.1, R.sub.2, R.sub.3, C.sub.p, and X are as herein defined, is described.
    Type: Grant
    Filed: December 14, 1977
    Date of Patent: April 10, 1979
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Mitsuto Fujiwhara, Takashi Sasaki, Takashi Uchida, Morio Kobayashi
  • Patent number: 4146397
    Abstract: A method of forming a photographic image which comprises image-wise exposing a silver halide photographic element containing at least one compound having a degree of polymerization of about 10 to about 8,000 and represented by the following general formula (I):--a).sub.x (B).sub.y (I)whereinA represents ##STR1## or --CH.sub.2 --CH.sub.2 --O--, R represents ##STR2## or --OH, m is an integer of 3 to 7, R.sub.1 represents an alkyl group having 1 to 6 carbon atoms, and R.sub.2 represents a hydrogen atom or an alkyl group having 1 to 4 carbon atoms;B represents a monomer unit derived from styrene, methacrylic acid ester, acrylic ester, vinyl acetate, acrylonitrile, vinyl alcohol, vinyl chloride, vinyl ether, acrylamide, N,N-dimethylacrylamide, acrylic acid, methacrylic acid, maleic acid, potassium styrenesulfonate, N,N-dialkylaminoalkyl methacrylate, vinylimidazole or vinylpyridine; andX and y represent the mole%, respectively, of A and B, with x + y = 100 and in which x .gtoreq.
    Type: Grant
    Filed: August 8, 1977
    Date of Patent: March 27, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Isao Shimamura, Hiroshi Hara
  • Patent number: 4142895
    Abstract: A color developer composition is provided which has substantially improved protection against oxidation of the color developer and excellent sequestering properties characterized in that the composition comprises an .alpha.-aminocarbonyl compound, an organo-phosphonic acid and an aminocarboxylic acid.
    Type: Grant
    Filed: January 5, 1978
    Date of Patent: March 6, 1979
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventors: Karl Frank, Arnfried Melzer
  • Patent number: 4138259
    Abstract: A color photographic silver halide light-sensitive material capable of providing color images having excellent fastness and free from discoloration at the non-image areas comprising a support having thereon a silver halide photographic emulsion layer having a dye image providing material associated therewith and with the light-sensitive material containing at least one compound represented by the following general formula (I) or a precursor thereof: ##STR1## wherein R and R', which may be the same or different, each represents ##STR2## and at least one phenolic compound having an ether bond at the 4-position thereof.
    Type: Grant
    Filed: October 28, 1977
    Date of Patent: February 6, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiichi Adachi, Tadao Shishido, Hiroshi Hara, Shigeo Hirano
  • Patent number: 4133686
    Abstract: A color photographic light-sensitive element comprising a support having thereon a silver halide emulsion layer containing therein a 3-anilino-2-pyrazolin-5-one magenta color forming coupler, which prevents yellow staining at the unexposed areas after color development processing, and which particularly prevents an increase in yellow staining due to irradiation of light with the magenta color images obtained using the color photographic element containing the magenta coupler maintaining a clear color even after irradiation of light.
    Type: Grant
    Filed: October 27, 1977
    Date of Patent: January 9, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiji Ichijima, Nobuo Furutachi
  • Patent number: 4127413
    Abstract: A method for adding oil-soluble photographic addenda in the form of their solution in a high boiling organic solvent to a hydrophilic colloidal solution for forming a layer of a light-sensitive silver halide photographic material in the homogeneously dispersed state, is described.
    Type: Grant
    Filed: February 2, 1978
    Date of Patent: November 28, 1978
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Masao Ishihara, Ryoichiro Kobayashi, Tugumoto Usui, Takayoshi Omura
  • Patent number: 4124391
    Abstract: A process for processing color photographic materials, which involves color development processing an image wise exposed silver halide color light-sensitive material with a color developer, in which the color developer contains an aromatic primary amine developing agent and at least one monosaccharide selected from the group consisting of a pentose, a methylpentose and a hexose.
    Type: Grant
    Filed: February 15, 1977
    Date of Patent: November 7, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junkiti Ogawa, Isao Shimamura
  • Patent number: 4124394
    Abstract: In a color diffusion transfer photographic material which comprises a photosensitive element containing at least one silver halide emulsion layer having associated therein a non-diffusible dye image-providing material, an image-receiving element for immobilizing therein diffusible dye formed by the oxidation reaction of the dye image-providing material and a primary aromatic amino color developing agent to form dye images, and a processing composition for developing the exposed silver halide in the silver halide emulsion layer and transferring the diffusible dye formed into the image-receiving layer with at least one of the photosensitive elements, the image-receiving element or the processing composition containing a primary aromatic amino color developing agent or a precursor thereof, with the photosensitive element and/or the image-receiving element of the photographic material containing at least one of divinyl sulfone and a divinyl sulfone derivative represented by the formula (I): ##STR1## wherein B rep
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: November 7, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidefumi Sera, Motohiko Tsubota, Sosuke Hanai
  • Patent number: 4121939
    Abstract: A color photographic light-sensitive material comprising a support having thereon at least one layer of a silver halide photographic emulsion with the light-sensitive material containing at least one hydroquinone compound represented by the following general formula (I): ##STR1## wherein R.sup.1 represents a hydrogen atom, ##STR2## or a precursor thereof.
    Type: Grant
    Filed: July 14, 1977
    Date of Patent: October 24, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keiichi Adachi, Akio Mitsui
  • Patent number: 4120723
    Abstract: A color photographic light-sensitive element comprising a support having thereon a photographic layer containing (a) at least one magenta coupler represented by the general formula (II): ##STR1## wherein Y.sub.1 represents a halogen atom, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms; Y.sub.2 and Y.sub.3, which may be the same or different, each represents a hydrogen atom, a halogen atom, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms; R.sub.1 represents R.sub.2 CONH--, R.sub.2 OOC--, R.sub.2 NHSO.sub.2 -- or ##STR2## wherein R.sub.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: October 17, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Hara, Kotaro Nakamura
  • Patent number: 4113495
    Abstract: A color photographic light-sensitive material containing a coupler therein and, in at least one photographic layer, a compound represented by the following general formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or an --X--Y group wherein X represents a carbonyl group or a sulfonyl group, and Y represents a straight chain, branched chain or cyclic alkyl group having 1 to 20 carbon atoms, an aryl group, an aralkyl group, an alkoxy group containing a straight chain, branched chain or cyclic alkyl group having 1 to 20 carbon atoms, an aryloxy group, an aralkoxy group, a straight chain, branched chain or cyclic alkoxycarbonyl group having 2 to 20 carbon atoms, an aryloxycarbonyl group or an aralkoxycarbonyl group; and R.sub.2, R.sub.3 and R.sub.
    Type: Grant
    Filed: June 13, 1977
    Date of Patent: September 12, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadao Shishido, Hiroshi Hara, Atsuaki Arai
  • Patent number: 4113488
    Abstract: A method for improving the light fastness of a magenta color image in a silver halide color photograph which comprises incorporating into a layer containing a magenta color image, which is formed upon reaction of a magenta coupler and an oxidation product of an aromatic primary amine color developing agent, at least one light fastness improving phenolic compound and at least one synergistic light fastness improving agent selected from a sulfide or sulfoxide compound represented by the following general formula (V):x--b--y (v)wherein B represents --S-- or --SO--; X and Y, which may be the same or different, each represents --(CH.sub.2).sub.n --R.sub.1, ##STR1## or ##STR2## and R.sub.1 represents --COOR.sub.3, ##STR3## --OR.sub.6, --O--COR.sub.6, --NHSO.sub.2 R.sub.6, ##STR4## --NHCOR.sub.6, a cyano group, an aryl group or a hydroxy group; R.sub.2 represents an alkyl group of 1 to 30 carbon atoms, an aryl group, an aralkyl group, a hydroxy group, a cyano group or --COOR.sub.3 ; R.sub.3 R.sub.4, R.sub.5 and R.
    Type: Grant
    Filed: May 13, 1976
    Date of Patent: September 12, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Yamada, Tadao Shishido, Atsuaki Arai
  • Patent number: 4083723
    Abstract: A process for color photographic processing, which comprises subjecting an exposed silver halide color light-sensitive material to a color development using a color developer containing(1) an aromatic primary amine developing agent and(2) at least one organic compound having at least one phosphono group and at least one carboxy group in the molecule.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: April 11, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Isao Shimamura, Junkiti Ogawa
  • Patent number: 4080209
    Abstract: A silver halide photographic light-sensitive material comprising a hydrophilic organic colloid layer containing a photographic additive dispersed therein using as a solvent a benzoic acid ester which has a boiling point of greater than 250.degree. C at atmospheric pressure, which is soluble in water in a proportion of less than about 10% by weight, and which dissolves water in a proportion of less than about 5% by weight. The benzoic acid ester does not have any harmful influence on the human body and does not cause environmental pollution.
    Type: Grant
    Filed: July 2, 1976
    Date of Patent: March 21, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuo Mukunoki, Takeshi Mikami, Nobuo Tsuji
  • Patent number: 4069052
    Abstract: A photographic silver halide material containing a new stabilizer compound which is an aromatic compound containing in ortho position two bridging members which are linked to form a spiro structure with a 2'-imidazolidine-4',5'-dione as defined hereinafter.
    Type: Grant
    Filed: December 15, 1975
    Date of Patent: January 17, 1978
    Assignee: AGFA-Gevaert Aktiengesellschaft
    Inventors: Karl Lohmer, Anita VON Konig, Siegismund Schutz, Jurgen Stoltefuss
  • Patent number: 4069048
    Abstract: In a diffusion transfer color photographic material including a photosensitive element comprising silver halide emulsion layers having associated therewith dye image forming materials, an image receiving element, and a liquid processing composition for developing the silver halide emulsion layers after image-wise exposure and diffusing the dye images formed into the image receiving element, the dye images formed are stabilized and the formation of stains at blank areas is effectively prevented by incorporating one or more N-.alpha.-sulfoalkylated amino acids into at least one of the photosensitive element, the image receiving element or the liquid processing composition. A process using the same is also disclosed.
    Type: Grant
    Filed: February 17, 1976
    Date of Patent: January 17, 1978
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Motohiko Tsubota, Sosuke Hanai, Yasushi Oishi, Hidefumi Sera, Nobuo Yamamoto
  • Patent number: 4055426
    Abstract: A process for stabilizing a color developing solution which comprises adding one or more hydroxamic acid compounds represented by the following formula to the color developing solution: ##STR1## wherein X represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms, an unsubstituted or substituted aryl group having 6 to 10 carbon atoms, an amino group, an alkylamino group having 1 to 4 carbon atoms or an arylamino group.
    Type: Grant
    Filed: August 27, 1976
    Date of Patent: October 25, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junkichi Ogawa, Tsumoru Ishii, Isao Shimamura
  • Patent number: 4052216
    Abstract: A color photographic recording material is provided containing at least one dye image or a color coupler for the production of a dye image and the material contains in at least one hydrophilic layer a hydroxyindane as defined hereinafter to reduce the fading of the image dye on exposure to UV or visible light.
    Type: Grant
    Filed: June 8, 1976
    Date of Patent: October 4, 1977
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Johannes Sobel, Alfons Klein, Fritz Nittel, Karlfried Wedemeyer
  • Patent number: 4046574
    Abstract: A color photographic material having a silver halide emulsion layer and containing a thioether compound which is reactable on chromogenic development thereby releasing a diffusible substance which inhibits the development of the silver halide.The thioether compound is a homophthalimide containing a removable mercapto group containing moiety in the 4-position and its nitrogen in the 2-position atom being a tertiary nitrogen.
    Type: Grant
    Filed: January 20, 1976
    Date of Patent: September 6, 1977
    Assignee: AGFA-Gevaert, Aktiengesellschaft
    Inventors: Heinrich Odenwalder, Erwin Ranz, Walter Puschel, Hans Vetter
  • Patent number: 4042394
    Abstract: A photographic element is disclosed comprised of a support and at least one layer containing a photographic imaging dye or its precursor. The imaging dye is chosen to have an absorption peak below 590 nm. An azomethine dye having an absorption peak above 700 nm is associated with the imaging dye or its precursor within the photographic layer. The azomethine dye reduces the rate of fading of the imaging dye upon exposure to visible light. A process for stabilizing a photographic dye image is also disclosed.
    Type: Grant
    Filed: February 3, 1975
    Date of Patent: August 16, 1977
    Assignee: Eastman Kodak Company
    Inventors: Wendell F. Smith, Jr., Kenneth L. Eddy, Donald P. Harnish
  • Patent number: 4032349
    Abstract: A color diffusion transfer photographic material which comprises: (a) a light-sensitive element containing at least one silver halide emulsion layer having a dye image-providing material associated therewith; (b) an image-receiving element capable of imagewise fixing the dye image-providing material as a result of exposure and development of the silver halide emulsion layer; and (c) a processing composition capable of causing development of the silver halide emulsion layer and containing a mercapto compound having a molecular weight of about 230 or higher; with at least one of the light-sensitive element, the image-receiving element and the processing composition containing a developing agent for the silver halide.
    Type: Grant
    Filed: June 25, 1975
    Date of Patent: June 28, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiki Sakanoue, Motohiko Tsubota, Yoshiharu Fuseya, Keiichi Adachi, Tadao Shishido
  • Patent number: 4029503
    Abstract: A diffusible-dye releasing type dye consisting of a radical which reacts with an oxidation product of a color developing principal agent in a color development process to yield a substantially colorless compound and a dye residue carrying water-soluble radicals. Its photographic uses are also disclosed.
    Type: Grant
    Filed: May 7, 1975
    Date of Patent: June 14, 1977
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Mitsuto Fujiwhara, Ryosuke Sato
  • Patent number: 4028129
    Abstract: A heat-developable photosensitive material which comprises a support having one or more layers thereon containing at least (a) an organic silver salt, (b) a catalytic amount of a photosensitive silver halide or a component capable of forming a photosensitive silver halide, (c) a reducing agent and (d) at least one of an inorganic peroxide and a peroxodisulfate.
    Type: Grant
    Filed: January 8, 1975
    Date of Patent: June 7, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Suzuki, Yasuhiro Noguchi, Takao Masuda
  • Patent number: 4026707
    Abstract: Silver halide supersensitized with a mixture of naphthoxazole and benzoxazole carbocyanine dyes.
    Type: Grant
    Filed: August 12, 1976
    Date of Patent: May 31, 1977
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Tadahiko Obikawa, Shigemasa Itoh
  • Patent number: 4021248
    Abstract: A color photographic light-sensitive material comprising a silver halide photographic emulsion containing (1) at least one compound selected from the group consisting of (a) a compound represented by the following general formula (I);cp - Z (I)wherein Cp represents a monovalent residue of a magenta or yellow coupler residue in which one hydrogen atom of the active methylene group is replaced by a coupling off group Z eliminated upon coupling reaction with an oxidation product of an aromatic primary amine color developing agent, and Z represents a nitrogen-containing coupling-off group connected to Cp at a nitrogen atom thereof, and (b) a 4-position unsubstituted 3-arylamino-5-pyrazolone derivative, and (2) at least one compound represented by the following general formula (II);q - sh (ii)wherein Q represents a heterocyclic group, bonded directly or indirectly thereto and containing at least one of a --SO.sub.
    Type: Grant
    Filed: September 3, 1975
    Date of Patent: May 3, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Kiyoshi Nakazyo, Reiichi Ohi, Keiichi Adachi
  • Patent number: 4015990
    Abstract: A tocopherol derivative represented by the general formula, ##STR1## wherein R, R.sub.1 and R.sub.2 represent individually a hydrogen atom or a methyl group; and R.sub.3 represents a straight chain or branched-chain alkyl group having 1 to 18 carbon atoms, or a substituted or unsubstituted aryl group, is incorporated as a light-fading stabilizer into the photosensitive layer of a color photographic lightsensitive material, whereby the photographic material can be prevented not only from fading and discoloration of the finally obtained color image and from discoloration of the non-color-developed portion, but also from formation of fog. Furthermore, the said stabilizer itself is excellent in dispersion stability.
    Type: Grant
    Filed: June 19, 1975
    Date of Patent: April 5, 1977
    Assignee: Mitsubishi Paper Mills, Ltd.
    Inventors: Yaichi Ishida, Hiroshi Ikeda, Shigetoshi Hiraishi
  • Patent number: 4015988
    Abstract: A multilayer color photographic light-sensitive material comprising a support having thereon at least two silver halide emulsion layer units, each of which is sensitive to radiation of a substantially different wavelength region within the wavelength region of from about 220 nm to about 800 nm and contains a color-forming coupler capable of forming a dye on coupling with an oxidized primary aromatic amine developing agent, with at least one of the emulsion layer units containing an ICC coupler represented by the general formula (I) ##STR1## wherein Cp represents a coupler residue; L and M each represents a nitrogen atom or a methine group, V represents a monocyclic or dicyclic aromatic ring of the benzene series, and at least one of L and M represnts a nitrogen atom; which releases a triazole derivative or a diazole derivative on coupling with an oxidized primary aromatic amine developing agent, and with the emulsion layer unit containing the ICC coupler represented by the general formula (I) or another layer
    Type: Grant
    Filed: March 4, 1975
    Date of Patent: April 5, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Takeshi Hirose, Jun Hayashi, Toshiaki Aono
  • Patent number: 4009038
    Abstract: A silver halide color photographic material comprising a support having thereon at least a silver halide emulsion layer containing a hydrophobic phenolic or naphtholic cyan dye forming coupler together with a 2-(2'-hydroxyphenyl)benzotriazole compound. The color photographic material provides a cyan dye image having improved moisture resistance and high fastness to heat.
    Type: Grant
    Filed: May 23, 1975
    Date of Patent: February 22, 1977
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Atsuaki Arai, Reiichi Ohi, Minoru Yamada, Kenji Yokoo, Hiroshi Hara
  • Patent number: 4003748
    Abstract: A photographic silver halide material with at least one halide emulsion layer and at least one substance in heterogeneous contribution emulsified in oilformer compounds and a process of preparing the said photographic silver halide materials. The substances are introduced into photographic emulsions prior to coating by way of adding a hydrophilic phase containing in emulsified form the substances which are emulsified in the hydrophilic phase in form of a solution containing at least one substantially diffusion-resistant, substantially water-insoluble, substantially non-coupling dispersible .beta.-diketo compound with at least 9 carbon atoms, .beta.-keto carboxylic acid ester, .beta.-keto carboxylic acid amide, cyanoacetyl compound or .beta.-dicarboxylic acid ester with at least 13 carbon atoms as oilformer. The photographic material shows advantageous results i.a. with respect of stability of the emulsified substances in the layers and excellent sensitometric results.
    Type: Grant
    Filed: March 3, 1975
    Date of Patent: January 18, 1977
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Hans Langen, Erwin Ranz, Rudolf Meyer, Johannes Sobel
  • Patent number: 3997348
    Abstract: In a method for developing, bleaching and fixing an exposed silver halide photographic material, the improvement which comprises bleaching the photographic material with a bleaching solution containing a ferric salt, then processing the photographic material with a solution containing an organic acid.
    Type: Grant
    Filed: July 15, 1974
    Date of Patent: December 14, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Isao Shimamura, Haruhiko Iwano
  • Patent number: 3973979
    Abstract: Improved 5-pyrazolone couplers of the following formula ##SPC1## wherein R,R.sub.1 R.sub.2,X and A denotes as described hereinafter for use in lightsensitive color photographic materials which are easy to prepare and give rise after chromogenic development to magenta dyes with improved stability to light.
    Type: Grant
    Filed: May 14, 1974
    Date of Patent: August 10, 1976
    Assignee: AGFA-Gevaert, A.G.
    Inventors: Ernst Meier, Hans Glockner, Karl Kuffner, Immo Boie, Karl-Wilhelm Schranz
  • Patent number: 3961963
    Abstract: A photographic material comprising a support having thereon a photosensitive silver halide emulsion layer containing a hydroquinone derivative which releases a development inhibitor or a development accelerator at development and including an absorbing colloid layer for adsorbing the development inhibitor or accelerator containing silver halide particles which are not substantially developed by development on the silver halide emulsion layer or between the silver halide emulsion layer and the support.
    Type: Grant
    Filed: September 13, 1974
    Date of Patent: June 8, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keisuke Shiba, Takeshi Hirose, Toshiaki Aono
  • Patent number: 3960570
    Abstract: A color photographic silver halide light-sensitive material containing a 2-equivalent alpha-acylacetoamide yellow dye-forming coupler and a monoalkylhydroquinone.
    Type: Grant
    Filed: February 11, 1974
    Date of Patent: June 1, 1976
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Oishi, Reiichi Ohi, Yoshio Kosuge
  • Patent number: RE30064
    Abstract: A process for color photographic processing, which comprises subjecting an exposed silver halide color light-sensitive material to a color development using a color developer containing(1) an aromatic primary amine developing agent and(2) at least one organic compound having at least one phosphono group and at least one carboxy group in the molecule.
    Type: Grant
    Filed: July 3, 1978
    Date of Patent: August 7, 1979
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Isao Shimamura, Junkiti Ogawa