Developing In Acid Medium Patents (Class 430/433)
  • Patent number: 9487498
    Abstract: The invention relates to N-hydroxysulfonamide derivatives that donate nitroxyl (HNO) under physiological conditions and are useful in treating and/or preventing the onset and/or development of diseases or conditions that are responsive to nitroxyl therapy, including heart failure and ischemia/reperfusion injury. Novel N-hydroxysulfonamide derivatives release NHO at a controlled rate under physiological conditions, and the rate of HNO release is modulated by varying the nature and location of functional groups on the N-hydroxysulfonamide derivatives.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: November 8, 2016
    Assignees: The Johns Hopkins University, Cardioxyl Pharmaceuticals, Inc.
    Inventors: John P. Toscano, Frederick Arthur Brookfield, Andrew D. Cohen, Stephen Martin Courtney, Lisa Marie Frost, Vincent Jacob Kalish
  • Patent number: 9221780
    Abstract: The invention relates to N-hydroxysulfonamide derivatives that donate nitroxyl (HNO) under physiological conditions and are useful in treating and/or preventing the onset and/or development of diseases or conditions that are responsive to nitroxyl therapy, including heart failure and ischemia/reperfusion injury. Novel N-hydroxysulfonamide derivatives release NHO at a controlled rate under physiological conditions, and the rate of HNO release is modulated by varying the nature and location of functional groups on the N-hydroxysulfonamide derivatives.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: December 29, 2015
    Assignees: The Johns Hopkins University, Cardioxyl Pharmaceuticals, Inc.
    Inventors: John P. Toscano, Frederick Arthur Brookfield, Andrew D. Cohen, Stephen Martin Courtney, Lisa Marie Frost, Vincent Jacob Kalish
  • Publication number: 20090233245
    Abstract: A method and composition for processing color film is described. The color film is processed by developing it using first and second compositions. The second composition is an aqueous composition including a buffer, an antioxidant, a preservative, a hydroxide and a developer selected from the group consisting of a hydroquinone and an ascorbic acid.
    Type: Application
    Filed: June 5, 2006
    Publication date: September 17, 2009
    Inventors: Robert Arthur Olson, Michael Anthony Zacharia, Warren Proulx
  • Patent number: 7163785
    Abstract: A silver halide photographic material, including a support having thereon a silver halide emulsion layer, the silver halide emulsion layer containing silver halide particles having a silver chloride content of more than or equal to 90 mol %, wherein a compound represented by Formula (S) is contained in the interior and on a surface of the silver halide particles and in a binder of the silver halide emulsion layer, and the silver halide particles have more than two silver halide phases therein having different concentration of the compound represented by Formula (S):
    Type: Grant
    Filed: November 20, 2002
    Date of Patent: January 16, 2007
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Toshiya Kondo, Koichiro Kuroda
  • Publication number: 20030190555
    Abstract: An image forming method using a negative type image forming material is disclosed, and said method comprises the steps of exposing a negative type image forming material to infrared laser imagewise, which image forming material comprises a substrate and an image recording layer formed thereon, comprising (A) a radical generator, (B) a radical-polymerizable compound, (C) an infrared absorbing agent, and (D) a binder polymer; and developing the image forming material with an alkaline developing solution comprising a weak acid or a salt thereof having a dissociation constant pka of from 10 to 13.
    Type: Application
    Filed: March 21, 2003
    Publication date: October 9, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Hiroyuki Nagase
  • Patent number: 5998083
    Abstract: An image-forming system for radiological imaging is disclosed said system consisting of an intensifying screen comprising on a support at least one layer of a green-light emitting phosphor and, in operative association therewith, a prehardened light-sensitive photographic silver halide film material, comprising a support and on both sides thereof one or more hydrophilic colloid layers, said layers being hardened to such an extent that their swelling degree is reduced to less than 200% after immersing said material for 2 minutes in demineralised water of 35.degree. C.; further comprising in at least one of said hydrophilic layers chemically ripened, monodisperse essentially cubic silver chloroiodide grains having a mean crystal diameter of from 0.40 mm up to 0.65 mm; wherein said grains have been spectrally sensitised in the wavelength range between 520 and 580 nm, have a maximum absorption between 540 and 500 nm and have been coated in a total amount of silver per sq.m.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: December 7, 1999
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Ann Verbeeck, Freddy Henderickx, Dirk Vandenbroucke, Peter Verrept
  • Patent number: 5607822
    Abstract: Color developing chemicals in the form of granules for a silver halide color photographic material containing a p-phenylenediamine compound, wherein the color developing chemicals further contain a compound represented by the following formula, the chemicals imparting a pH of 5.
    Type: Grant
    Filed: May 3, 1996
    Date of Patent: March 4, 1997
    Assignee: Konica Corporation
    Inventor: Takashi Deguchi
  • Patent number: 5324550
    Abstract: In forming a resist pattern by forming a resist film containing an acid generator on a spin on glass film or a silicon resin film and subsequent exposure of light, an inhomogeneous distribution of an acid in the resist film caused by the spin on glass film or the silicon resin film is remedied by adding an acid generator beforehand into the spin on glass film or the silicon resin film or by using an organic polymer containing an acid generator. As a result, a profile defect in a cross section of the resist pattern caused by inhomogeneous acid distribution is prevented and the resist pattern has a rectangular cross-sectional shape.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: June 28, 1994
    Assignee: Hitachi, Ltd.
    Inventors: Hidenori Yamaguchi, Fumio Murai, Norio Hasegawa, Toshio Sakamizu, Hiroshi Shiraishi
  • Patent number: 5204228
    Abstract: A method of processing a silver halide color photographic light-sensitive material having a silver halide emulsion layer containing silver halie grains having a silver chloride content of not less than 80 mol %, wherein said silver halide color photographic material, after being subjected to color-development, is continuously processed with a bleaching solution comprising at least one of ferric complex salts of compounds represented by the following formula [A] or [B]: ##STR1##
    Type: Grant
    Filed: June 25, 1991
    Date of Patent: April 20, 1993
    Assignee: Konica Corporation
    Inventors: Hiroshi Yoshimoto, Shigeharu Koboshi
  • Patent number: 5204229
    Abstract: A replenishing solution unit for color-developing a color photographic light-sensitive material is disclosed. The replenishing solution unit comprises at least (1) a replenishing solution containing a color developing agent and a sulfinic acid or a salt thereof and the pH of said replenishing solution is 2 to 6 and (2) a replenishing solution containing a replenishing solution component other than the color developing agent. The replenishing solution unit enables the preparation of a concentrated developing solution and has excellent storage stability over a long period of time without the decrease of photographic sensitivity and the increase of D.sub.min. A method for processing a color photographic light-sensitive material with the above replenishing solution unit is also disclosed.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: April 20, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koichi Nakamura, Masato Taniguchi
  • Patent number: 4925778
    Abstract: A process for the rapid development of imagewise exposed silver halide recording materials which contain on a layer support at least three light sensitive silver halide emulsion layers of different spectral sensitivity, with which a cyan coupler, a magenta coupler and a yellow coupler are in each case spectrally associated, comprising the following treatment steps:1. treatment of the photographic material with a solution I of a color developing agent or a salt thereof at pH 1 to 8 over a period of 1 to 10 seconds,2. treatment of the photographic material impregnated with the developing agent with an alkali-containing solution II at pH 10 to 14 over a period of 1 to 10 seconds.produces maximum color densities of the kind otherwise only obtained by conventional development over a period of 45 seconds.
    Type: Grant
    Filed: March 10, 1989
    Date of Patent: May 15, 1990
    Assignee: Agfa-Gevaert Aktiengesellschaft
    Inventor: Ubbo Wernicke
  • Patent number: 4455364
    Abstract: There is disclosed a process for forming a metallic image which comprises treating a composite material for forming a metallic image in the presence of a metal chelating agent. Also disclosed is a composite material for use in the process containing a support, a metallic thin layer and a light-sensitive resin layer, wherein a metal chelating agent is included in at least one layer on the support, and a treating solution for the same wherein the metal chelating agent is included therein.According to the invention, it is possible to obtain a metallic image having highly sharp edges in the etched portions.
    Type: Grant
    Filed: November 5, 1982
    Date of Patent: June 19, 1984
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventor: Nobumasa Sasa
  • Patent number: 4339523
    Abstract: A new method to produce photographic images is provided which comprises:(a) imagewise exposing a photographic assembly which contains at least during the silver halide developing step, in order optionally a supercoat layer, at least one silver halide emulsion layer, a layer containing a substantive azamethine compound and a photobase, there being optionally one or more interlayers between each of said components(b) treating the exposed photographic assembly with an aqueous processing bath so as to provide in the silver halide emulsion layer or layers a solution or dispersion of a bleach developer compound, thereby to develop the latent silver image in the silver halide emulsion(s), and(c) in the non-latent image areas allowing the bleach developer compound to diffuse in a counter-imagewise manner from the silver halide emulsion layer (s) to the layer containing substantive azamethine compound and there to bleach the compound to form a dye image.
    Type: Grant
    Filed: March 21, 1980
    Date of Patent: July 13, 1982
    Assignee: Ciba-Geigy AG
    Inventors: Alexander Psaila, Katerina Kessler
  • Patent number: 4271261
    Abstract: A developer composition for a lithographic printing plate provided with a coated layer composed of a photosensitive polymer having in the main chain thereof groups of formula (I) ##STR1## wherein X and Y independently represent hydrogen, halogen, cyano or nitro, and n is an integer of 1 or 2, comprising ethylene glycol monophenyl ether and at least one acid selected from the group consisting of a mineral acid, an organic carboxylic acid and an organic sulfonic acid.
    Type: Grant
    Filed: December 21, 1979
    Date of Patent: June 2, 1981
    Assignee: Mitsubishi Chemical Industries Limited
    Inventors: Shigeki Shimizu, Hiroshi Ide
  • Patent number: 4252892
    Abstract: A poly(alkyleneimine), such as poly(ethyleneimine), is incorporated in a photographic color developer composition containing a primary aromatic amino color developing agent in order to protect the developing agent against aerial oxidation. The poly(alkyleneimine) also functions to reduce tar formation and retard stain growth and provides a supplemental source of alkalinity in the color developer composition.
    Type: Grant
    Filed: December 10, 1979
    Date of Patent: February 24, 1981
    Assignee: Eastman Kodak Company
    Inventor: Nelson S. Case
  • Patent number: 4250250
    Abstract: A photographic process comprising exposing imagewise a photosensitive layer containing a divalent tin basic salt to actinic rays to form a pattern consisting of non-reducing exposed areas and reducing non-exposed areas and contacting the exposed photo-sensitive layer with a developer capable of forming or erasing color by reduction to thereby form a visible image corresponding to said non-exposed areas or said exposed areas.
    Type: Grant
    Filed: August 10, 1979
    Date of Patent: February 10, 1981
    Assignee: Mita Industrial Company Limited
    Inventors: Nobuhiro Miyakawa, Hiroshi Kokado, Eiichi Inoue
  • Patent number: 4243745
    Abstract: A process for the photographic development of a light sensitive system is provided wherein photographic material having a layer comprising a photosensitive silver salt is imagewise exposed and the silver salt is imagewise developed in an acid processing solution by use of a 1,4-diazine compound reduced at most to the dihydro stage, wherein the said reduced diazine compound is produced during the development process from a 1,4-diazine or a 1,4-diazine-N-oxide by electrolytic reduction.
    Type: Grant
    Filed: April 25, 1979
    Date of Patent: January 6, 1981
    Assignee: Ciba-Geigy AG
    Inventor: Michael W. Fry