Patents Examined by Thomas R. Neville
  • Patent number: 5457017
    Abstract: A base film for a photographic film, wherein (A) the base film is formed of a polyethylene-2,6-naphthalenedicarboxylate copolymer formed from 2,6-naphthalenedicarboxylic acid as a main acid component and ethylene glycol as a main glycol component; (B) a solution of 10 mg/ml of said copolymer in a hexafluoroisopropanol/chloroform mixed solvent having a hexafluoroisopropanol/chloroform weight ratio of 2/3 shows a light transmittance, T.sub.400, of at least 97%/cm at a wavelength of 400 nm; (C) the film has a yellow index, Y.sub.ID, of 5 or less; and (D) the film has a haze value of 2.0% or less.
    Type: Grant
    Filed: April 6, 1994
    Date of Patent: October 10, 1995
    Assignee: Teijin Limited
    Inventors: Manabu Kimura, Hideshi Kurihara, Tetsuo Ichihashi, Satoshi Kitazawa
  • Patent number: 5455152
    Abstract: An ultraviolet absorbing monomer of formula (A): ##STR1## wherein: R.sub.4 and R.sub.5 are, independently, a substituted or unsubstituted alkylene with or without intervening oxygen, sulfur or nitrogen atoms; R.sub.6 is H or a substituted or unsubstituted methyl; and the benzo ring, the hydroxy substituted phenyl ring and the phenyl ring of the styryl group may be further substituted or unsubstituted. A method of making such monomers and photographic elements containing UV absorbing polymers formed from such monomers are also provided.
    Type: Grant
    Filed: September 27, 1994
    Date of Patent: October 3, 1995
    Assignee: Eastman Kodak Company
    Inventor: Lal C. Vishwakarma
  • Patent number: 5453351
    Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support comprising a substrate and an electron beam-cured resin layer provided on a surface of the substrate, and a hydrophilic colloid layer provided on said resin layer. The resin layer comprises an electron beam-curable composition cured by electron beam radiation and a white pigment in an amount of 20% to 70% by weight. The hydrophilic colloid layer includes at least one silver halide emulsion layer and optionally a non-light-sensitive hydrophilic colloid layer, and contains gelatin and an oil component. In the light-sensitive material, the curling degree of the support R m.sup.-1, the coating amount of the gelatin G g/m.sup.2, and the coating amount of the oil component Oi g/m.sup.2 are each -8.ltoreq.R.ltoreq.-1, 2.ltoreq.G.ltoreq.20 and 0.ltoreq.Oi.ltoreq.20, respectively, and a value Y calculated by the following equation is -3.ltoreq.Y.ltoreq.5;Y=0.9G-0.
    Type: Grant
    Filed: August 26, 1994
    Date of Patent: September 26, 1995
    Assignee: Konica Corporation
    Inventors: Eiichi Ueda, Masahito Takada
  • Patent number: 5453352
    Abstract: A silver halide photographic light-sensitive material is disclosed, which comprises a support and provided thereon, a hydrophilic colloid layer comprising a silver halide emulsion layer wherein the hydrophilic colloid layer contains a compound having a solubility of not less than 1 g based on 100 g of water of 25.degree. C.
    Type: Grant
    Filed: February 2, 1995
    Date of Patent: September 26, 1995
    Assignee: Konica Corporation
    Inventor: Noriki Tachibana
  • Patent number: 5451486
    Abstract: Photographic film nucleating agents comprising aryl sulfonamidophenyl hydrazides containing alkene, alkadienyl, alkapolyenyl or cycloalkenyl substituted pyridinium functionality; these nucleators produce better dot quality and superior contrast characteristics in image-wise exposed film elements and wider compatibility with standard rapid access developers and obviate the need to include boosters in the film or in the developer.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: September 19, 1995
    Assignee: Sun Chemical Corporation
    Inventors: John F. Pilot, Syeda Husain, Penny M. Mullen, Burton H. Waxman
  • Patent number: 5451497
    Abstract: The tendency of a photographically useful compound (PUC) to crystallize when dispersed in an aqueous medium is inhibited by codispersing with the PUC a non-color forming, oil-soluble, monomeric or oligomeric organic compound having a glass transition temperature between 0.degree. and 150.degree. C. Preferred organic compounds are oil-soluble sucrose esters, such as sucrose octaacetate, and rosin and derivatives thereof.
    Type: Grant
    Filed: December 30, 1993
    Date of Patent: September 19, 1995
    Assignee: Eastman Kodak Company
    Inventors: David D. Miller, Krishnan Chari
  • Patent number: 5451490
    Abstract: An electronic printing method which comprises subjecting a radiation sensitive silver halide emulsion layer of a recording element to actinic radiation of at least 10.sup.-4 ergs/cm.sup.2 for up to 100 microseconds duration in a pixel-by-pixel mode is disclosed. The radiation sensitive silver halide emulsion layer contains a silver halide grain population comprising at least 50 mole percent chloride, based on silver, forming the grain population projected area. At least 50 percent of the grain population projected area is accounted for by tabular grains that are bounded by {100} major faces having adjacent edge ratios of less than 10, each having an aspect ratio of at least 2.
    Type: Grant
    Filed: January 7, 1994
    Date of Patent: September 19, 1995
    Assignee: Eastman Kodak Company
    Inventors: Jerzy A. Budz, Julie K. Ligtenberg, Michael R. Roberts, Susan K. Mroczek
  • Patent number: 5449599
    Abstract: A silver halide light-sensitive photographic material for applications in the field of mammography is disclosed which has an improved diagnostic value by an enhanced sharpness. The silver halide crystals to be used in the said material show a fog level, a toe contrast and an overall contrast that is, like the image quality, substantially uneffected by the processing conditions. The coating amount of silver halide crystals in the emulsion layer can be reduced to such an amount that an archivability of from 10 to 20 years can be assured in normal storage conditions. The X-ray material is suitable for rapid processing, without loss in sensitivity, within processing cycles of 45 or 38 seconds, wherein hardener-free processing solutions can be used.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: September 12, 1995
    Assignee: Agfa-Gevaert, N.V.
    Inventor: Luc J. Heremans
  • Patent number: 5447820
    Abstract: Disclosed is a silver halide photographic light-sensitive material for plate making which has an excellent rapid processing performance and a high processing stability. The silver halide photographic light-sensitive material comprises a support having provided thereon at least one silver halide light-sensitive emulsion layer, wherein at least one of (i) the at least one emulsion layer and (ii) another hydrophilic colloid layers(s) contains a compound represented by Formula (I).
    Type: Grant
    Filed: June 17, 1994
    Date of Patent: September 5, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Hayakawa, Toshihide Ezoe, Toshiaki Kubo
  • Patent number: 5447817
    Abstract: To eliminate the "pi-line" artefact after processing a method of image formation in a silver halide industrial X-ray photographic material is disclosed wherein said material comprises on at least one side of a support, at least one gelatino silver halide emulsion layer and a total amount of silver halide, corresponding to from 6 to 20 g of silver nitrate per square meter and per side, and at least one non-sensitive protective antistress coating and wherein said method proceeds by the steps of exposing said material to direct X-rays and processing the material in an automatic processing machine by development, fixing, rinsing and drying, characterized in that said material further comprises at least one vinyl sulphone compound as a hardening agent in at least one of its hydrophilic layers, that development occurs in a developer comprising as a surfactant at least one anionic alkylphenoxy and/or alkoxy polyalkyleneoxy phosphate ester, sulphate ester, alkyl carboxylic, sulphonic or phosphonic acid and/or a salt
    Type: Grant
    Filed: April 5, 1994
    Date of Patent: September 5, 1995
    Assignee: AGFA-Gevaert, N.V.
    Inventors: Raymond Florens, Pieter Perdieus, Peter Willems, Freddy Henderickx
  • Patent number: 5445927
    Abstract: A photographic silver halide material for industrial radiography comprises a film support and on one or both sides thereof a silver halide emulsion rich in silver chloride and a silver halide emulsion rich in silver bromide either in admixture in the same layer or in contiguous layers. The ratio by weight of colloid binder, e.g. gelatin, to silver halide (expressed as silver nitrate) is from 3:10 to 6:10 and the amount of silver halide corresponds to from 6 g to 20 g of silver nitrate per square meter and per side. The material has been forehardened to an extent such that when it is immersed in demineralised water of 25.degree. C. for 3 minutes there is absorbed less than 2.5 g of water per gram of binder. The material can be processed within a total processing time of less than 5 minutes with a developer and fixer being substantially free from hardening agents and the fixer being substantially free from ammonium ions.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: August 29, 1995
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Raymond Florens, Pieter Perdieus
  • Patent number: 5441865
    Abstract: This invention describes the use of gelatin-grafted-polymer particles as peptizers for the preparation of silver halide photographic emulsions, whereby the gelatin-grafted-polymer particles remain attached to the AgX crystals after preparation of the emulsions. In an embodiment of this invention, the core polymer particles are loaded with photographically useful agents. When the photographic agent is a dye-forming coupler, multicolor mixed-packet systems can be constructed using the packet emulsions prepared in the manner of this invention.
    Type: Grant
    Filed: January 7, 1993
    Date of Patent: August 15, 1995
    Assignee: Eastman Kodak Company
    Inventors: John D. Lewis, Mark A. Whitson, Thomas J. Dannhauser, Tienteh Chen, Pranab Bagchi
  • Patent number: 5441860
    Abstract: The present invention relates to a silver halide photographic material comprising a support having coated thereon at least one silver halide emulsion layer and at least one light-insensitive hydrophilic colloid layer wherein at least one of said layers comprises a gelatin hardening agent and said hydrophilic colloid layer comprises an alkali-insoluble acrylic polymer particles having an average particle size of from 0.5 to 6 .mu.m and wherein at least 95% by number of said polymer particles have a particle size within .+-.15% of the average particle size.
    Type: Grant
    Filed: February 28, 1994
    Date of Patent: August 15, 1995
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Brunella Fornasari, Giuseppe Bussi, Renzo Torterolo
  • Patent number: 5439776
    Abstract: The inclusion of isothiouronium functionality onto hydrazide derivatives results in the formation of nucleating agents for lithographic films that produce high contrast and speed with excellent dot quality as required for halftone applications. The level of performance of the nucleators of the invention is sufficiently high that the need to incorporate amine boosters in the lithographic film elements or developers is not required. The novel nucleators have the formula ##STR1## wherein R is hydrogen, C.sub.1 -C.sub.10 alkyl, substituted or unsubstituted carbamoyl, or alkoxy or aryloxy carbonyl; Y is substituted or unsubstituted divalent aryl, and Q is an isothiouronium salt moiety.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: August 8, 1995
    Assignee: Sun Chemical Corporation
    Inventors: John F. Pilot, Syeda Husain, Shirley Madamba
  • Patent number: 5439791
    Abstract: New types of modified gelatins are disclosed, modified at part of the free carboxyl groups of the polypeptide chain, by the introduction of a new end-standing amino, sulphinic acid or thiol group. The modified gelatins show an enhanced reactivity towards vinylsulphonyl hardeners. The invention further includes hardened modified gelatin types and hydrophilic elements containing them. In particular, a differentially hardened multilayer element, preferably a photographic element, is disclosed.
    Type: Grant
    Filed: February 10, 1994
    Date of Patent: August 8, 1995
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Piet Kok, Jean-Marie Dewanckele, Johan Loccufier, Eddy Michiels, Frank Michiels
  • Patent number: 5437957
    Abstract: Disclosed is a lithographic printing plate material comprising a support and, provided thereon, at least a silver halide emulsion layer and a physical development nuclei layer wherein the physical development nuclei layer and/or a layer contiguous thereto contains at least one of water-soluble polymers represented by the following formula (I) or at least one of water-soluble polymers represented by the following formula (II): ##STR1## wherein R.sub.1 represents H or an alkyl group, R.sub.2 represents H or an alkali metal atom, n is 1-100 mol %, m is 0-50 mol % and l is 0-5 mol %, ##STR2## wherein R.sub.3 and R.sub.4 each represent a hydrogen atom or a lower alkyl group and A represents a residue of an ethylenically unsaturated monomer, l is 99.9-40 mol %, m is 0.1-10 mol % and n is 0-50 mol %. The polymer of the formula (I) may be used in combination with a water-soluble polysaccharide.
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: August 1, 1995
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Motozo Yamano, Kozo Haino, Akio Yoshida, Hidetoshi Miura
  • Patent number: 5437968
    Abstract: A silver halide color photograph light-sensitive material having an improved push-processing suitability. The material comprises a support having provided thereon at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one red-sensitive emulsion layer. The layers adjacent to each of layer having a color sensitivity contain yellow colloidal silver.
    Type: Grant
    Filed: October 14, 1994
    Date of Patent: August 1, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsurou Nagaoka
  • Patent number: 5436123
    Abstract: A silver halide photographic light-sensitive material comprises a support and provided thereon, a hydrophilic colloid layer comprising a silver halide emulsion layer, wherein said support has a thickness of 70 to 120 .mu.m and Young's modulus of not less than 550 kg/mm.sup.2 and said hydrophilic colloid layer has a degree of swelling of not more than 80%, said degree of swelling being obtained by the following equation:Degree of swelling=(B-A).times.100 Awherein A represents a dry thickness .mu.m of the hydrophilic colloid layer and B represents a thickness .mu.m of the hydrophilic colloid layer after the material was immersed for 15 minutes at 35.degree. C. in developer (b).
    Type: Grant
    Filed: June 20, 1994
    Date of Patent: July 25, 1995
    Assignee: Konica Corporation
    Inventor: Akiko Suzuki
  • Patent number: 5436121
    Abstract: Disclosed is a silver halide color photographic light-sensitive material which includes, on a support, at least one blue-sensitive silver halide emulsion layer containing a yellow coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and at least one red-sensitive silver halide emulsion layer containing a cyan coupler, and in which a weight-averaged wavelength (.lambda..sub.-R) of a spectral sensitivity distribution of magnitude of an interimage effect which the silver halide emulsion layers except for all of the red-sensitive silver halide emulsion layers have on the red-sensitive layers over a range of 500 to 600 nm is 500 nm<.lambda..sub.-R <560 nm, and a difference between weight-averaged wavelength (.lambda..sub.G) of a spectral sensitivity distribution of at least one green-sensitive silver halide emulsion layer and .lambda..sub.-R is .lambda..sub.G -.lambda..sub.-R .ltoreq.
    Type: Grant
    Filed: November 22, 1994
    Date of Patent: July 25, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Suga, Junji Nishigaki, Takanori Hioki
  • Patent number: 5434039
    Abstract: The support member for photographic printing paper of the present invention has a coating layer which comprises white pigment and hydrophobic binder soluble in an organic solvent on a base material, whereby voids are formed in said coating layer. The support member increases whiteness degree and gives an image with excellent sharpness.
    Type: Grant
    Filed: July 28, 1994
    Date of Patent: July 18, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kozo Nagata, Yasuhiro Ogata, Tetsuro Fuchizawa