Patents Examined by Jack P. Brammer
  • Patent number: 5332655
    Abstract: Disclosed is a silver halide color photographic material. The material comprises a support having thereon at least one photosensitive silver halide emulsion layer and at least one non-photosensitive hydrophilic colloid layer.
    Type: Grant
    Filed: November 26, 1991
    Date of Patent: July 26, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Akiko Shono
  • Patent number: 5332623
    Abstract: A photographic support material includes a base paper and at least one polyolefin layer arranged on the base paper and containing titanium dioxide, and a methyl substituted chinacridone red pigment in the polyolefin which is a chinolino (2,3-b) acridine-7,14-dione-5,12-dihydro-3,10-dimethyl.
    Type: Grant
    Filed: May 18, 1993
    Date of Patent: July 26, 1994
    Assignee: Felix Schoeller jr. Papierfabrik GmbH & Co. KG
    Inventor: Ralf-Burkhard Dethlefs
  • Patent number: 5330884
    Abstract: Disclosed is a photographic element comprising an antihalation dye of formula: ##STR1## wherein X.sup.1, X.sup.2 independently represents --CR.sup.8 R.sup.9 --, --S--, --Se--, --NR.sup.10 --, --CH.dbd.CH-- or --O--;n is an integer of 2 or 3;R.sup.1 and R.sup.2 independently represent alkyl of 1 to 10 carbons or substituted alkyl of 1 to 10 carbons;R.sup.3 represents a ring chosen from the set consisting of aryl, substituted aryl, and a heterocyclic ring;R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently represent hydrogen, alkyl of 1-10 carbons, substituted alkyl of 1-10 carbons, R.sup.4 and R.sup.5 taken together or R.sup.6 and R.sup.7 taken together may represent the atoms necessary to form a 5 or 6-membered aliphatic ring, an aromatic six-membered ring, an aromatic 10-membered ring, a substituted aromatic six-member ring or a substituted aromatic 10-member ring;R.sup.8, R.sup.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: July 19, 1994
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Dietrich M. Fabricius, Thomas Schelhorn
  • Patent number: 5328819
    Abstract: An azomethine dye represented by the following general formula (I) ##STR1## wherein A represents a dye residue formed by removing one hydrogen atom from an indophenol or indoaniline dye; L represents a divalent bonding group; and Z represents a non-metallic atomic group required for forming a three-membered to eight-membered heterocyclic ring together with N, provided that a carbonyl group is not directly bonded to N in the heterocyclic ring. Also disclosed is a silver halide photographic material having an emulsion layer with a covering power of at least 60, and wherein the silver halide photographic material contains at least one member of the dyes of general formula (I) in such an amount that an increase in transmission density in unexposed areas caused by the incorporation of the dye therein after development is not more than 0.06.
    Type: Grant
    Filed: August 12, 1992
    Date of Patent: July 12, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shigeru Ohno, Yukio Miyaki, Shigeru Yamazaki
  • Patent number: 5326688
    Abstract: A solvent mixture of 8 to 30 weight percent of n-propyl acetate 1-methoxy-2-propanol or cyclohexane, 50 to 55 weight percent of acetone and the balance methanol is employed in a coating composition for applying a polymeric antistatic layer.
    Type: Grant
    Filed: May 27, 1993
    Date of Patent: July 5, 1994
    Assignee: Eastman Kodak Company
    Inventors: Ronald M. Stimson, James Skoronski, Thomas M. Smith, Jack J. Holt
  • Patent number: 5326686
    Abstract: A silver halide photographic material is described having a hydrophobic polymer layer which is not substantially swollen with processing solutions on one surface of a support and having at least one light-sensitive silver halide emulsion layer on the other surface of the support, and the material has a hydrophilic colloid layer containing a dispersion of fine solid grains of a dye having an absorption peak wavelength of from 600 nm to 1200 nm between the support and the emulsion layer. The material is exposed with a near infrared ray. The drying property of the processed material is improved, and the material is hardly curled during storage under varying conditions.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: July 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Yoshiharu Yabuki
  • Patent number: 5326687
    Abstract: A microprecipitated dispersion comprising a methine oxonol filter dye is provided which has the formula ##STR1## wherein n is 0, 1, or 2; R.sub.1, R.sub.2, R.sub.3, and R.sub.4 are the same or different substituted or unsubstituted alkyl or aryl groups, one or more of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 contains carboxy substituent --CO.sub.2 Z, wherein Z.sup.+ is a statistical mixture of hydrogen (H.sup.+) and alkali or tetraalkylammonium cations (M.sup.+) such that Z.sup.+ =xH.sup.+ +(1-x)M.sup.+, where x is a decimal ranging from about 0.33 to about 0.95, and photographic elements containing them.
    Type: Grant
    Filed: October 8, 1993
    Date of Patent: July 5, 1994
    Assignee: Eastman Kodak Company
    Inventor: John Texter
  • Patent number: 5322768
    Abstract: An infrared sensitive silver halide photographic element which contains a dye represented by the following formula: ##STR1## wherein R.sub.1 and R.sub.2 each independently represent a sulfoalkyl or a sulfatoalkyl group having 2 to 4 carbon atoms, Q represents the atoms necessary to complete a 5- or 6-membered carbocyclic ring group, R.sub.3 represents an alkyl group, R.sub.4 represents an aryl group, X.sup.- represents an anion, n is an integer of 1 or 2, provided that that n is 1 when the dye forms an intramolecular salt, and Z.sub.1 and Z.sub.2 each independently represent the atoms necessary to complete an indole nucleus.
    Type: Grant
    Filed: October 23, 1992
    Date of Patent: June 21, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Ivano Delprato, Stefano Mana, Antonio Luzzi
  • Patent number: 5320930
    Abstract: An optical recording medium comprising a substrate and a thin organic film containing at least one kind of dye selected from polymethine family dyes, perylium family dyes, and cyanine family dyes, and a recording process comprising scanning the optical recording medium with a high intensity light beam such as a laser beam to form optically detectable pits on the recording medium.
    Type: Grant
    Filed: July 6, 1993
    Date of Patent: June 14, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Kazuharu Katagiri, Yoshihiro Oguchi, Yoshio Takasu
  • Patent number: 5318885
    Abstract: A photographic element according to the invention includes a reflective support, one or more photosensitive silver halide emulsion layers, and a colored antihalation layer interposed between the support and the photosensitive layers. The antihalation layer comprises thin grains of silver in the form of-platelets having a thickness of up to about 20 nm. The platelets are distributed in a suitable matrix or colloidal medium such as gelatin. The thinness of the platelets allows the antihalation layer to be formed effectively at lower silver levels.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: June 7, 1994
    Assignee: Eastman Kodak Company
    Inventor: David C. Shuman
  • Patent number: 5316901
    Abstract: UV-sensitive negative acting silver halide photographic elements for contact processes which can be safely handled under white light and have increased UV exposure latitude, said elements comprising a support base, a hydrophilic colloidal silver halide emulsion layer comprising UV sensitive negative acting silver halide grains, and one or more hydrophilic colloidal layers, wherein said silver halide emulsion is reactively associated with a water-removable UV-absorbing compound having at least 80% of the absorption in the range from 350 to 400 micronmeter.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: May 31, 1994
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Alberto Vacca, Aldo Sgarbi
  • Patent number: 5310869
    Abstract: Planographic printing plates coated with a two-component silicone formulations that consist of a high-molecular-weight silicone component and a low-molecular-weight silicone polymer. The components are combined in varying proportions with a cross-linking agent to produce compositions of varying viscosities and dispersibilities. The high-molecular-weight component is linear polysiloxane compound with a molecular weight of at least 300,000, and preferably 500,000 or higher. The low-molecular-weight component has a similar structure, with a molecular weight no greater than 70,000. Various substitutions are made to facilitate cross-linking among components. The coatings can contain pigments or other materials to enhance imaging performance.
    Type: Grant
    Filed: February 25, 1993
    Date of Patent: May 10, 1994
    Assignee: Presstek, Inc.
    Inventors: Thomas E. Lewis, Michael T. Nowak
  • Patent number: 5310639
    Abstract: A light sensitive photographic element is disclosed having a support bearing at least one light sensitive silver halide emulsion layer and at least one non-light sensitive stress absorbing layer between the emulsion layer and the support, wherein the stress absorbing layer comprises a polymer and a hydrophilic colloid in a mass ratio of greater than or equal to about 1:2, the polymer having a glass transition temperature of less than about 5.degree. C. It has been found that pressure fog can be substantially reduced while maintaining scratch resistence when such a stress absorbing layer is present.
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: May 10, 1994
    Assignee: Eastman Kodak Company
    Inventors: Kenneth J. Lushington, Richard P. Szajewski, Kevin M. O'Connor
  • Patent number: 5308687
    Abstract: Metal oxide heteropolycondensates of tin and boron, particularly heteropolycondensates of this type wherein the major amount of the metal oxide is tin oxide, and a minor amount is boron oxide. The quantity of boron oxide is sufficient to enhance the conductivity of the composition.
    Type: Grant
    Filed: August 26, 1993
    Date of Patent: May 3, 1994
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Melpolder, Bradley K. Coltrain, Sylvia A. Gardner
  • Patent number: 5302497
    Abstract: Compounds of the formula ##STR1## wherein R.sub.o, is hydrogen or alkylene-COOR where R is alkyl or hydroxyalkyl, R.sub.1 is hydrogen, alkyl, hydroxyalkyl, alkenyl or acyl, R.sub.2 and R.sub.3 are independently hydrogen, alkyl, alkenyl or alkoxy, R.sub.6 is hydrogen or alkyl, and X is --CH.sub.2 --, --NH--, --S-- or --O--, are suitable as UV absorbers for use in photosensitive organic materials in combination with a sterically hindered amine or hydroxyphenylbenzotriazole derivative.
    Type: Grant
    Filed: August 19, 1992
    Date of Patent: April 12, 1994
    Assignee: Ciba-Geigy Corporation
    Inventors: Godwin Berner, Andreas Valet
  • Patent number: 5300401
    Abstract: The photopolymerizable resin material of the present invention includes (1) a support, (2) a water soluble intermediate layer of 0.1 to 50 .mu.m in thickness superposed on the support and (3) a photopolymerizable resin layer superposed on the intermediate layer which contains at least one carboxyl group-containing binder in an amount of from 40 to 90% by weight based on the solid content in the photopolymerizable resin layer, wherein the intermediate layer includes a cellulose derivative which has a polymerization degree of from 20 to 1,000 and is selected from the group consisting of an aqueous alkali solution soluble hydroxyalkyl cellulose, carboxyalkyl cellulose and cellulose ether. The present invention is also directed to a process for preparing a printed circuit which includes laminating the photopolymerizable material on a board, peeling off the support and then effecting pattern exposure and development.
    Type: Grant
    Filed: June 9, 1993
    Date of Patent: April 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Sadao Fujikura, Masayuki Iwasaki
  • Patent number: 5300415
    Abstract: The invention provides a photographic element comprising a paper substrate with a polyolefin coating provided on at least one surface, a hydrophilic colloid layer on the polyolefin coating, and at least one light sensitive silver halide emulsion above the hydrophilic colloid layer, wherein said hydrophilic colloid layer comprises a removable antihalation material and from about 20 to 80 percent by weight of a white pigment, and from about 15 to 35 percent by weight of hollow microspheres having a diameter of from about 0.1 to about 1 um.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: April 5, 1994
    Assignee: Eastman Kodak Company
    Inventors: Erika M. Sato, Peter D. Marsden
  • Patent number: 5300417
    Abstract: A light sensitive photographic element is disclosed having a support bearing at least one light sensitive silver halide emulsion layer, an overcoat layer, and at least one non-light sensitive stress absorbing layer between the emulsion layer and the overcoat layer, wherein the stress absorbing layer comprises a polymer and a hydrophilic colloid in a mass ratio of greater than or equal to about 1:1, the polymer having a glass transition temperature of less than about 5.degree. C. It has been found that pressure fog can be substantially reduced when such a stress absorbing layer is present.
    Type: Grant
    Filed: December 10, 1992
    Date of Patent: April 5, 1994
    Assignee: Eastman Kodak Company
    Inventors: Kenneth J. Lushington, Richard P. Szajewski, Kevin M. O'Connor
  • Patent number: 5300416
    Abstract: There is disclosed a silver halide photographic light-sensitive material which is improved in an antistatic property, curling before and after processing, and surface status after processing. The light-sensitive material includes a support having provided thereon at least one light-sensitive silver halide emulsion layer, wherein the material contains an anionic crosslinked polymer dispersion containing a polymer represented by Formula (I), and the material further contains an anionic water soluble polymer represented by Formula (II): ##STR1## wherein A represents a repetitive unit formed by copolymerizing a crosslinking monomer having at least two copolymerizable ethylenically unsaturated groups; B and E each represent a monomer unit formed by copolymerizing copolymerizable ethylenically unsaturated monomers; R.sup.
    Type: Grant
    Filed: July 8, 1992
    Date of Patent: April 5, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichi Yamanouchi, Satoru Toda, Nobuaki Ohmori, Yuichi Ohashi
  • Patent number: 5298364
    Abstract: Sulfonic acid esters of 2,4-bistrichloromethyl-6-(mono- or dihydroxyphenyl)-1,3,5-triazine are disclosed. Also disclosed is a negative-working radiation-sensitive mixture containing such a compound in combination with a compound containing at least two acid-crosslinkable groups, and a water-insoluble polymeric binder which is soluble or at least swellable in aqueous alkaline solutions. The esters are esters of a sulfonic acid or sulfonic acids of the formula R--SO.sub.3 H or R'(--SO.sub.3 H).sub.2 with 2,4-bistrichloromethyl-6-(mono- or dihydroxyphenyl)-1,3,5-triazine of the formulae I and/or II ##STR1## where R is an optionally further substituted (C.sub.1 -C.sub.10)-alkyl, (C.sub.5 -C.sub.10)cycloalkyl, (C.sub.6 -C.sub.10)aryl, (C.sub.6 -C.sub.10)aryl-(C.sub.1 -C.sub.10)alkyl or (C.sub.3 -C.sub.9)heteroaryl radical, R' is an optionally substituted (C.sub.1 -C.sub.10)alkylene, (C.sub.6 -C.sub.10)arylene or (C.sub.3 -C.sub.9)heteroarylene radical, and n may be 1 or 2.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 29, 1994
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Georg Pawlowski, Horst Roeschert, Walter Spiess, Klaus-Juergen Przybilla