Silver Salt Of Organic Acid Patents (Class 430/620)
  • Publication number: 20030162134
    Abstract: A photothermographic material that comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more radiation absorbing compounds that provide a total absorbance of greater than 0.6 and up to and including 3 in the thermally-developable imaging layer(s). These photothermographic materials exhibit reduced mottle without significant loss in sensitivity.
    Type: Application
    Filed: December 5, 2001
    Publication date: August 28, 2003
    Applicant: Eastman Kodak Company
    Inventors: Bryan V. Hunt, Steven H. Kong, William D. Ramsden, Gary E. Labelle
  • Publication number: 20030162140
    Abstract: A heat-developable image recording material comprises a support; a photosensitive silver halide; a reducing agent for a silver ion; a hinder; and a non-photosensitive organic silver salt grain, wherein the non-photosensitive organic silver salt grain has: 1) a silver stearate content of 1 mol % or less; 2) a length/width ratio of 1 to 9; 3) an aspect ratio of 1.1 to 30; and 4) an equivalent-sphere diameter of 0.05 to 1 &mgr;m.
    Type: Application
    Filed: December 26, 2001
    Publication date: August 28, 2003
    Inventors: Takayoshi Oyamada, Itsuo Fujiwara
  • Patent number: 6610469
    Abstract: The present invention provides a photothermographic material having an image-forming layer that contains a non-photosensitive silver salt of an organic acid, a photosensitive silver halide, a specific nucleating agent, a compound represented by the formula (1) and a binder on at least one side of a support: wherein P represents an oxygen atom, a sulfur atom or NH, Q represents an oxygen atom or a sulfur atom, Y represents OH, OM (M represents a counter ion) or NH2, L represents a divalent bridging group, and Z represents an alkyl group, an aryl group or a heterocyclic group.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: August 26, 2003
    Assignee: Fuji Photo Film, Co., Ltd.
    Inventor: Makoto Ishihara
  • Publication number: 20030157442
    Abstract: Disclosed is a photothermographic material containing a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on one surface of a support, wherein a ratio of twin crystal grains of the photosensitive silver halide is 1.0% or less with respect to the total grain number of the photosensitive silver halide. This photothermographic material shows high sensitivity, low fog, high Dmax (maximum density) and little increase of fog during storage.
    Type: Application
    Filed: June 7, 2002
    Publication date: August 21, 2003
    Inventor: Tokuju Oikawa
  • Patent number: 6607872
    Abstract: A photothermographic recording material comprising a photo-addressable thermally developable element coatable from aqueous media comprising a substantially light-insensitive organic silver salt, photosensitive silver halide in catalytic association with the substantially light-insensitive organic silver salt and a reducing agent in thermal working relationship with the substantially light-insensitive organic silver salt and a binder, characterized in that the binder comprises a water-soluble polymer, a water-dispersible polymer or a mixture of a water-soluble polymer and a water-dispersible polymer and particles of the photosensitive silver halide are non-aggregating in the photo-addressable thermally developable element and are uniformly distributed over and between particles of the substantially light-insensitive organic silver salt, at least 80% by number of the particles having a diameter, determined by transmission electron microscopy, of ≦40 nm; and a recording process therefor.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: August 19, 2003
    Assignee: Agfa-Gevaert
    Inventors: Herman Uytterhoeven, Yvan Gilliams, Johan Loccufier, Sabine Emmers, Ronny De Clercq
  • Patent number: 6605418
    Abstract: Thermally developable compositions such thermographic and photothermographic emulsions include certain quaternary phthalazine compounds. These emulsions can be used in thermally developable materials such as thermographic and photothermographic materials to provide improved sensitometric and post processing properties. Such materials can have imaging layers on one or both sides of the support.
    Type: Grant
    Filed: October 28, 2002
    Date of Patent: August 12, 2003
    Assignee: Eastman Kodak Company
    Inventors: William D. Ramsden, Chaofeng Zou
  • Publication number: 20030143499
    Abstract: Spectral sensitizing dyes represented by the following formulas (1) to (4) are disclosed; silver halide photographic materials and thermally developable photosensitive materials containing the dyes are also disclosed.
    Type: Application
    Filed: April 10, 2002
    Publication date: July 31, 2003
    Inventors: Nobuaki Kagawa, Noriyasu Kita, Tatsuo Tanaka, Hiroshi Kashiwagi
  • Publication number: 20030143500
    Abstract: A heat-developable photosensitive material comprises: a support; a light-sensitive silver halide; a reducing agent for a silver ion; a binder; and a light-insensitive organic silver salt grain, wherein the light-insensitive organic silver salt grain contains a silver behenate in an specific amount.
    Type: Application
    Filed: June 27, 2002
    Publication date: July 31, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Takayoshi Oyamada, Kouta Fukui, Toyohisa Oya, Eiichi Okutsu, Yasuhiro Yoshioka
  • Patent number: 6599685
    Abstract: Thermally developable photothermographic materials comprise a backside layer that includes a toner as a backside stabilizer. Useful backside stabilizers include pyridazine, phthalazine, phthalazinone, benzoxazine dione, benzthiazine dione, or quinazoline dione compounds, or derivatives of any of these compounds to provide improved shelf stability. These backside stabilizers can be provided particularly in non-photosensitive compositions that include an antihalation composition.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: July 29, 2003
    Assignee: Eastman Kodak Company
    Inventor: Steven H. Kong
  • Publication number: 20030139292
    Abstract: A black and white thermographic recording material comprising a thermosensitive element and a support, the thermosensitive element containing at least one substantially light-insensitive organic silver salt, a binder and optionally photosensitive silver halide, characterized in that the thermosensitive element further contains deliberately added metal nano-particles in a molar ratio with respect to the total molar concentration of the at least one substantially light-insensitive organic silver salt in the range of 0.05:1 to 10−6:1; and the use for the purpose of increasing the ratio of Dmax to the quantity of said substantially light-insensitive organic silver salts per unit area of the above-mentioned thermographic recording material.
    Type: Application
    Filed: November 27, 2002
    Publication date: July 24, 2003
    Applicant: AGFA-GEVAERT
    Inventors: Ingrid Geuens, Luc Verberckt, Ivan Hoogmartens, Frank De Voeght, Iris Vanwelkenhuysen
  • Publication number: 20030138738
    Abstract: A photothermographic material that comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more radiation absorbing compounds that provide a total absorbance of greater than 0.6 and up to and including 3 in the thermally-developable imaging layer(s). These photothermographic materials are independently coated and dried while the material is conveyed at a rate of at least meters per minute.
    Type: Application
    Filed: December 5, 2001
    Publication date: July 24, 2003
    Applicant: Eastman Kodak Company
    Inventors: Bryan V. Hunt, Steven H. Kong, William D. Ramsden, Gary E. Labelle
  • Publication number: 20030138739
    Abstract: A photothermographic material comprises: a support; a binder; an organic silver salt; a reducing agent for silver ion; and a photosensitive silver halide grain, wherein said photothermographic material contains a solvent in an amount of from 5 to 1,000 mg/m2 and the intensity of an odor generated from said photothermographic material is from −3 to 1 at 120° C.
    Type: Application
    Filed: September 10, 2002
    Publication date: July 24, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Senzo Sasaoka, Yutaka Tamura
  • Publication number: 20030138744
    Abstract: Disclosed is a photothermographic material having one or more image-forming layer and one or more layers on the outermost image-forming layer, wherein at least one of the layers on the outermost image-forming layer is a non-photosensitive layer having a thickness of 2.8-8 &mgr;m and at least one layer prepared by applying a coating solution containing 30 weight % or more of an organic solvent is formed between the support and the non-photosensitive layer. The photothermographic material shows little fluctuation of image line width and little generation of density unevenness and can form an image of high contrast and high maximum density with heat development under a highly humid environment.
    Type: Application
    Filed: August 2, 2002
    Publication date: July 24, 2003
    Inventor: Tadashi Ito
  • Publication number: 20030138740
    Abstract: A photothermographic material comprising: a transparent support; and a photosensitive layer comprising a photosensitive silver halide, a non-photosensitive organic silver salt, a thermal developer and a binder, wherein the photosensitive silver halide comprises silver iodide in a ratio of 5% by mole or more, the non-photosensitive organic silver salt comprises silver behenate in a ratio of 30% by mole or more and less than 80% by mole, and the binder has a glass transition temperature of 45° C. or more.
    Type: Application
    Filed: October 4, 2002
    Publication date: July 24, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Sumito Yamada
  • Publication number: 20030134238
    Abstract: A photothermographic material comprising: a reflective support; a photosensitive silver halide; a non-photosensitive organic silver salt; a reducing agent for silver ions; a binder; and an organic polyhalogen compound.
    Type: Application
    Filed: October 18, 2002
    Publication date: July 17, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Yasuhiro Yoshioka
  • Patent number: 6593076
    Abstract: A photothermographica material is disclosed, comprising an organic silver salt and a light sensitive silver halide, wherein the photothermographic material contains a hydrophilic binder of 0.5 to 2 g per mol of the organic silver salt and the organic silver salt having been formed in the presence of the silver halide of 7×1015 to 3×1017 grains per mol of the organic salt.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: July 15, 2003
    Assignee: Konica Corporation
    Inventors: Keiko Maeda, Tetsuo Shima, Kazuyoshi Goan
  • Publication number: 20030129550
    Abstract: Disclosed is a photothermographic material having a support, at least one photosensitive layer containing a silver halide and a reducing agent and a non-photosensitive layer containing aggregates of a dye, wherein a transmission absorption spectrum of the aggregates has a maximum absorption wavelength within the range of 600-750 nm. The photothermographic material is easy to handle and provide an image having sufficient definition without residual color after development. The photothermographic material is suitable for light exposure with a red laser.
    Type: Application
    Filed: August 2, 2002
    Publication date: July 10, 2003
    Inventors: Ryo Suzuki, Keiichi Suzuki, Yoshiharu Yabuki
  • Publication number: 20030129551
    Abstract: A silver halide color photographic light-sensitive material containing a compound of the formula: 1
    Type: Application
    Filed: July 18, 2002
    Publication date: July 10, 2003
    Inventors: Osamu Uchida, Toshio Kawagishi, Masaaki Tsukase, Kazuhiko Matsumoto
  • Publication number: 20030129553
    Abstract: The present invention provides a heat developable photosensitive material comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions and binder on one surface of a support.
    Type: Application
    Filed: October 16, 2002
    Publication date: July 10, 2003
    Inventors: Yasuhiro Yoshioka, Takayoshi Oyamada, Eiichi Okutsu
  • Publication number: 20030124473
    Abstract: A silver salt photothermographic material is disclosed, comprising a support having provided thereon a light-sensitive layer containing light-sensitive silver halide, a light-insensitive organic silver salt and a binder, wherein the photothermographic material exhibits a gradation of 2.0 to 5.0 within the density region of 0.5 and 2.0 on a photographic characteristic curve obtained when the photothermographic material is subjected to exposure of 50 &mgr;J/cm2 and thermal development at 124° C. for 16 sec.; the light-sensitive layer comprises lower and upper layers and a glass transition temperature of a binder contained in the lower layer being higher than that of a binder contained in the upper layer.
    Type: Application
    Filed: June 5, 2002
    Publication date: July 3, 2003
    Inventor: Tsuyoshi Mitsuhashi
  • Patent number: 6586167
    Abstract: A method for thermally forming images for plate making, which comprises forming an image for plate making by using a thermally processed image recording material comprising a silver salt of an organic acid, a reducing agent, a color image forming material and an organic binder on a support, wherein the image consists essentially of a developed silver image and a color forming dye image and the color forming dye image shows an absorbance for ultraviolet region higher than that for visible region and has a transmission density of 0.3 or more for the region of 360-450 nm. There are provided a thermally processed image recording material and method for thermally forming images that provide significant difference of ultraviolet absorption between image areas and non-image areas suitable for printing plate making.
    Type: Grant
    Filed: July 23, 2001
    Date of Patent: July 1, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazunobu Katoh, Toyohisa Oya
  • Publication number: 20030118954
    Abstract: Disclosed is a photothermographic material having an image-forming layer containing a silver salt of an organic acid, photosensitive silver halide grains and a reducing agent on a support, wherein ratio of scratch strength measured before heat development and scratch strength measured 30 minutes after the heat development is in the range of 1:1-1:3 for a surface of the image-forming layer side. The photothermographic material shows improved film strength after heat development.
    Type: Application
    Filed: August 2, 2002
    Publication date: June 26, 2003
    Inventor: Makoto Ishihara
  • Publication number: 20030118955
    Abstract: A photothermographic imaging material comprising a support having thereon a photosensitive layer, wherein the photosensitive layer has a silver coverage of 0.8 to 2.
    Type: Application
    Filed: August 12, 2002
    Publication date: June 26, 2003
    Applicant: KONICA CORPORATION
    Inventors: Hirobumi Yamashita, Toshihisa Takeyama
  • Publication number: 20030118953
    Abstract: The heat-developable photosensitive material of the present invention comprises a support, a photosensitive silver halide, a non-photosensitive organic silver salt, a heat developer and a binder, wherein the photosensitive silver halide is a specific photosensitive silver halide.
    Type: Application
    Filed: July 10, 2002
    Publication date: June 26, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Katsutoshi Yamane, Yasuhiko Goto
  • Patent number: 6582897
    Abstract: A heat developable light-sensitive material high in heat development activity, excellent in image keeping quality, high in sensitivity and rapidly developable, comprising a support having provided on one side thereof a light-sensitive silver halide, a light-insensitive organic silver salt, a reducing agent for a silver ion and a binder, wherein the reducing agent is a compound represented by the formula (I), and an aromatic carboxylic acid compound represented by the formula (A) and a hydrogen bonding compound are further provided on the same side where the light-sensitive silver halide is provided.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: June 24, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yasuhiro Yoshioka
  • Patent number: 6582892
    Abstract: A black-and-white photothermographic material that is sensitive at a wavelength greater than 700 nm, and comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more indolenine dyes as post-processing stabilizing compounds and one or more merocyanine dyes or cyanine spectral sensitizing dyes that comprise one or more thioalkyl, thioaryl, or thioether groups.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: June 24, 2003
    Assignee: Eastman Kodak Company
    Inventors: Steven H. Kong, Bryan V. Hunt, William D. Ramsden
  • Patent number: 6582896
    Abstract: A photothermographic material includes on a support a non-photosensitive sliver salt, a photosensitive sliver halide, a nucleation agent, and a binder, and a layer containing specific compounds is formed on an outer side of the image forming layer. Thus, there are obtained such images optimal for photomechanical processes as having a high Dmax (maximum density), a low fog, a good coated surface condition, and less surface defects such as repellency, coating lines or the like.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: June 24, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Ito, Yasuo Mukunoki
  • Patent number: 6579671
    Abstract: A recording material comprising a support and a thermosensitive element containing one or more of silver behenate, silver palmitate, and silver stearate, an organic reducing agent therefor in thermal working relationship therewith and a binder, wherein the silver behenate, palmitate, or stearate is not associated with mercury and/or lead ions, production processes for particles of substantially light-insensitive organic silver salt primarily comprising silver behenate, silver palmitate, or stearate, with described X-ray characteristics in the substantial absence of organic solvent.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: June 17, 2003
    Assignee: AGFA-Gevaert
    Inventors: Sabine Emmers, Bartholomeus Horsten, Ingrid Geuens, Yvan Gilliams, Dirk Bollen, Ivan Hoogmartens, Andre Bellens
  • Patent number: 6576411
    Abstract: The invention is directed to a color photothermographic film in which particles comprising an organic silver salt is treated with a dye that functions as a passivating agent. In particular, the present invention involves passivating the organic silver salts with a dye that blocks the surface of the organic silver salt or ligand, resulting in a reduction of speed loss. The invention is also directed to a method of making a photothermographic element to improve raw stock keeping.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: June 10, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, Gregg P. Bryant, JoAnn D. Hanna, Mark R. Mis, Nancy B. Liebert
  • Patent number: 6576414
    Abstract: The present invention is directed to a photothermographic element comprising silver halide, a blocked developer, a coupler, and core/shell particles, each such particle comprising a mixture of at least two non-photosensitive organic silver salts, which particle comprises a center portion comprising a non-photosensitive first organic silver salt and at least one shell portion covering the center portion, the shell comprising a non-photosensitive second organic silver salt. The organic silver salt in the shell has a lower pKsp relative to the organic silver salt in the core. This invention also provides a composition comprising the core/shell non-photosensitive organic silver salt particles, and a method of making the particles.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: June 10, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, David H. Levy, Bernard D. Stich, Mark R. Mis, Stephen Swingley, Donald L. Black
  • Patent number: 6576415
    Abstract: A process for producing an aqueous dispersion comprising: preparing a dispersion of photosensitive silver halide and a binder or a surfactant in an aqueous medium; and subsequently either (a) adding a first silver salt to the silver halide dispersion and then adding a second silver salt; or (b) adding the second silver salt to the silver halide dispersion and then adding the first silver salt, wherein the aqueous dispersion is substantially free of a water-soluble metal or ammonium salt of an aliphatic carboxylic acid with greater than 12 carbon atoms, the first silver salt is a substantially light-insensitive and substantially water-insoluble silver salt of an organic carboxylic acid, and the second silver salt has a water-solubility greater than 0.1 g in 1 L of water at 20° C.; an aqueous dispersion obtainable therewith; a photothermographic recording material prepared with the aqueous dispersion; and a process for preparing the photothermographic recording material.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: June 10, 2003
    Assignee: AGFA-Gevaert
    Inventors: Herman Uytterhoeven, Johan Loccufier, Yvan Gilliams
  • Patent number: 6576410
    Abstract: High-speed black-and-white photothermographic emulsions and materials comprise chemically sensitized photosensitive silver halide grains, at least 70% of the total photosensitive silver halide projected area being provided by tabular silver halide grains comprising at least 70 mole % bromide (based on total silver halide). The tabular grains have an average thickness of at least 0.02 &mgr;m and up to and including 0.10 &mgr;m, an equivalent circular diameter of at least 0.5 &mgr;m and up to and including 8 &mgr;m, and an aspect ratio of at least 5:1. These high-speed materials can be imaged in any suitable fashion using ultraviolet, visible, infrared, or X-radiation. In one embodiment, they have one or more thermally developable layers on both sides of the support and can be imaged using X-radiation with or without a phosphor intensifying screen in an imaging assembly.
    Type: Grant
    Filed: July 11, 2002
    Date of Patent: June 10, 2003
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Robert D. Wilson, Richard L. Daubendiek, Timothy R. Gersey
  • Publication number: 20030104327
    Abstract: A photothermographic material of the present invention comprises: a support; a photosensitive silver halide; a non-photosensitive organic silver salt; a heat developer; a binder; and a fluorine compound containing a specific structure.
    Type: Application
    Filed: August 8, 2002
    Publication date: June 5, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yasuhiro Yoshioka, Takahiro Ishizuka, Terukazu Yanagi
  • Patent number: 6566045
    Abstract: A non-photosensitive silver dimer compound comprises two different silver salts, provided that when the two different silver salts comprise straight-chain, saturated hydrocarbon groups as the silver coordinating ligands, those ligands differ by at least 6 carbon atoms. Many of these silver dimer compounds can be represented by the following Structure I: wherein each E is independently oxygen, sulfur, nitrogen, selenium, or tellurium, R and R′ are different alkyl groups, aryl groups, aromatic heterocyclic groups, or halo atoms, provided that when E is oxygen, R and R′ are both straight-chain, saturated hydrocarbon groups, those hydrocarbon groups differ from each other by at least 6 carbon atoms. These silver dimer compounds are useful in thermally-developable imaging materials including thermographic and photothermographic materials.
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: May 20, 2003
    Assignee: Eastman Kodak Company
    Inventor: David R. Whitcomb
  • Publication number: 20030091943
    Abstract: A black-and-white photothermographic material that is sensitive at a wavelength greater than 700 nm, and comprises a support having thereon one or more thermally-developable imaging layers comprising a binder and in reactive association, a photosensitive silver halide, a non-photosensitive source of reducible silver ions, and a reducing composition for the non-photosensitive source reducible silver ions. The thermally-developable layers further comprises one or more indolenine dyes as post-processing stabilizing compounds and one or more merocyanine dyes or cyanine spectral sensitizing dyes that comprise one or more thioalkyl, thioaryl, or thioether groups.
    Type: Application
    Filed: June 29, 2001
    Publication date: May 15, 2003
    Applicant: Eastman Kodak Company
    Inventors: Steven H. Kong, Bryan V. Hunt, Wiliam D. Ramsden
  • Publication number: 20030091947
    Abstract: A heat-developable image recording material having excellent image preservability, comprises a support having thereon a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ion and a specific binder.
    Type: Application
    Filed: April 5, 2002
    Publication date: May 15, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yoshihisa Tsukada, Hajime Nakagawa, Seiji Hatano, tomokazu Yasuda
  • Publication number: 20030087211
    Abstract: A photothermographic recording material comprising on one side of a support an image recording layer comprising a light-insensitive organic silver salt, a photosensitive silver halide, a reducing agent for silver ions and a binder, wherein the difference in specular glossiness at an angle of 60° between a thermally developed exposed area of the image recording layer and the bottom support surface opposite the exposed area of the recording material is at least 15.
    Type: Application
    Filed: April 18, 2002
    Publication date: May 8, 2003
    Applicant: KONICA CORPORATION
    Inventor: Toshiyuki Matsumura
  • Publication number: 20030087204
    Abstract: The present invention is directed to a heat-developable photosensitive material and an image-forming process using the heat-developable photosensitive material. The material generally includes at least one photosensitive silver halide, a reducing agent for silver ions, a binder, and non-photosensitive organic silver salt particles on one surface of a support. The non-photosensitive organic silver salt particles are specified and the reducing agent is specified. The material may include specific non-photosensitive organic silver salt particles and a development accelerator.
    Type: Application
    Filed: April 22, 2002
    Publication date: May 8, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Takayoshi Oyamada, Kouta Fukui, Toyohisa Oya
  • Patent number: 6555309
    Abstract: In the case where multiple slide hopper is used for simultaneous multilayer bead coating of photosensitive material, streak defect is occasionally cause, particularly in the case of coating photothermographic material, especially when the outermost layer includes materials capable of increasing optical density such as toner it more frequently happens. It is found that streak defect is restrained when meniscus curvature of upper side bead becomes less than 7.2 mm−1. This condition can be kept by selecting a proper value of clearance between the web surface and the lip of the slide hopper, that is from 0.10 mm to 0.40 mm, and a proper value of pressure in a lower side of the bead, that is from −100 Pa to −700 Pa.
    Type: Grant
    Filed: December 11, 2001
    Date of Patent: April 29, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Akifumi Kato
  • Publication number: 20030073026
    Abstract: Photothermographic materials prepared using aqueous formulations include silver halides that are chemically sensitized using certain tellurium-containing compounds.
    Type: Application
    Filed: August 6, 2001
    Publication date: April 17, 2003
    Applicant: Eastman Kodak Company
    Inventors: Henry J. Gysling, David A. Dickinson, Mark Lelental, John W. Boettcher
  • Patent number: 6548236
    Abstract: The present invention is directed to a photothermographic element comprising silver halide, a blocked developer, a coupler, and core/shell particles, each such particle comprising a mixture of at least two non-photosensitive organic silver salts, which particle comprises a center portion comprising a non-photosensitive first organic silver salt and at least one shell portion covering the center portion, the shell comprising a non-photosensitive second organic silver salt. The organic silver salt in the shell has a higher pKsp relative to the organic silver salt in the core. This invention also provides a composition comprising core/shell non-photosensitive organic silver salt particles, and a method of making the particles.
    Type: Grant
    Filed: November 21, 2001
    Date of Patent: April 15, 2003
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, David H. Levy, JoAnn D. Hanna, Stephen Swingley, Donald L. Black, Stephen C. Stoker
  • Patent number: 6548233
    Abstract: Aqueous-based thermally sensitive emulsions and imaging materials include two or more hindered phenol silver ion reducing agents in a non-crystalline reducing agent composition. Such compositions can be provided as evaporated dispersions and can be formulated in aqueous coating compositions to provide thermally developable materials such as thermographic and photothermographic materials.
    Type: Grant
    Filed: March 28, 2002
    Date of Patent: April 15, 2003
    Assignee: Eastman Kodak Company
    Inventors: John W. Boettcher, Paul L. Zengerle, Roger L. Klaus
  • Publication number: 20030068568
    Abstract: The present invention is directed to a method of scanning silver-halide-containing color photographic and photothermographic film. In particular, the present invention comprises a photographic element comprising at least one infrared imaging dye-forming agent in a blue-sensitive color layer of the element, thereby forming at least one image record in the infrared region of the imagewise exposed and developed element. This expedient leads to the formation of high quality images when scanning photographic elements in which the silver halide, metallic silver, and/or any organic silver salts have not been removed.
    Type: Application
    Filed: August 13, 2001
    Publication date: April 10, 2003
    Inventors: James H. Reynolds, David H. Levy, Robert W. Kulpinski, Leif P. Olson, Wojciech K. Slusarek
  • Publication number: 20030068586
    Abstract: Disclosed is a photothermographic material containing at least a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on one surface of a support, wherein the material contains a compound producing imagewise a chemical species that can form development initiation points on and in the vicinity of the non-photosensitive silver salt of an organic acid or the like and an organic gold compound and the photosensitive silver halide has a mean grain size of 0.12 &mgr;m or less. This photothermographic material shows high sensitivity, low fog, high Dmax (maximum density), little increase of fog during storage and low temperature and humidity dependency during development.
    Type: Application
    Filed: January 29, 2002
    Publication date: April 10, 2003
    Inventor: Tokuju Oikawa
  • Publication number: 20030064328
    Abstract: A photothermographic recording material comprising a support and a photo-addressable thermally developable element, the photo-addressable thermally developable element containing a mixture of a substantially light-insensitive silver salt of a monocarboxylic acid and a substantially light-insensitive compound exclusive of silver succinate represented by formula (I): 1
    Type: Application
    Filed: March 19, 2002
    Publication date: April 3, 2003
    Applicant: AGFA-GEVAERT
    Inventor: Horst Friedel
  • Publication number: 20030064330
    Abstract: A photothermographic material comprising a photosensitive silver halide, a reducible silver salt, a phenolic reducing agent, a binder and a compound represented by the following formula on the same surface of a support: 1
    Type: Application
    Filed: March 29, 2002
    Publication date: April 3, 2003
    Inventors: Hirokazu Kyota, Toshihide Ezoe, Minoru Sakai, Toyohisa Oya
  • Publication number: 20030054261
    Abstract: A photothermographic material and its processing method are disclosed, the photothermographic material comprising a support and provided on one side of the support, one or more image forming layers containing a binder, an organic silver salt, silver halide, and a reducing agent, wherein the variation in the maximum surface roughness Rt of the surface on the image forming layer side between the materials before heat treatment and after heat treatment is not more than 1.5 &mgr;m.
    Type: Application
    Filed: February 28, 2002
    Publication date: March 20, 2003
    Inventor: Takeshi Sampei
  • Patent number: 6534251
    Abstract: A silver salt photothermographic dry imaging material comprising a support having thereon a photosensitive layer comprising silver aliphatic carboxylate grains and photosensitive silver halide grains, a reducing agent for silver ions, a binder and a cross-linking agent, wherein the photothermographic material has a silver coverage of 1.0 to 1.7 g/m2; the photosensitive silver halide grains have a mean grain size of 0.03 to 0.055 &mgr;m and a degree of grain size dispersity of not more than 30%; after the dry imaging material has been subjected to photothermographic processing at a temperature of 100 to 200° C. for 5 to 50 seconds, the photosensitive layer exhibits a thermal transition temperature of 46 to 200° C.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: March 18, 2003
    Assignee: Konica Corporation
    Inventors: Keiko Maeda, Tetsuo Shima
  • Patent number: 6534258
    Abstract: A method for producing grains of aliphatic acid silver salt by mixing a solution containing silver ions and a solution of aliphatic acid alkali metal salt to attain reaction of them, wherein (1) 95-100% of the total molar number to be added of the aliphatic acid alkali metal salt is added under a condition that dilution factor of the solution of aliphatic acid alkali metal salt becomes 10-fold or higher at 1 second after the addition, (2) 95-100% of the total amount to be added of silver in the solution containing silver ions is added under a condition that dilution factor of the solution containing silver ions becomes 20-fold or higher at 1 second after the addition, and (3) 50-100% of the total amount to be added of the solution of aliphatic acid alkali metal salt is added simultaneously with the solution containing silver ions.
    Type: Grant
    Filed: December 7, 2000
    Date of Patent: March 18, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takayoshi Oyamada, Naoyuki Kawanishi
  • Publication number: 20030049573
    Abstract: The problem of the present invention is to clear the packaging material and the presence/absence detecting method of the residual photothermographic image recording sheet, which are improved so that the concave section or the notched section provided on the bottom plate does not exercise a bad influence, caused by the exhalation of the organic solvent, on the recording sheet stacked on the lowermost position. Packaging material of the recording sheets, having a detecting means of the recording sheet, wherein there is provided the concave section or the notched section on a section where a part of a vacuum head comes into contact with a bottom plate located on a bottom section of the packaging material, and wherein there is arranged a filler formed with a soft material having air permeability and neither absorbs nor transmits organic solvent, in the concave section or the notched section.
    Type: Application
    Filed: September 6, 2002
    Publication date: March 13, 2003
    Applicant: KONICA CORPORATION
    Inventors: Katsunori Goi, Mamoru Umeki, Wataru Tachikawa