Silver Salt Of Organic Acid Patents (Class 430/620)
  • Patent number: 9901850
    Abstract: Provided is a fluid filtration unit including a housing accommodating a stationary cylindrical filter element, defining a raw fluid chamber extending between an inlet of the housing and raw fluid face of the cylindrical filter element, and a filtered fluid chamber extending between a filtered fluid face of the filter element and an outlet from the housing. A flushing and backspraying assembly includes at least one flushing pipe coupled to a lower pressure source and extending within the raw fluid chamber, and configured with a plurality of flushing nozzles disposed in close proximity with the raw fluid face of the filter element, and at least one backspraying arm coupled to a pressurized fluid source and extending within the filtered fluid chamber and configured with an array of backspraying nozzles disposed in close proximity with the filtered fluid face of the filter element, and a driving mechanism for selectively imparting the flushing and backspraying assembly with rotary and linear motion.
    Type: Grant
    Filed: December 1, 2011
    Date of Patent: February 27, 2018
    Assignee: AMIAD WATER SYSTEMS LTD.
    Inventors: Boaz Zur, Rudolph Kaner, Ruven Shtekelmacher, Yitzhak Sabag
  • Patent number: 8043800
    Abstract: A photosensitive material for forming a conductive film including a silver salt-containing emulsion layer, and a conductive layer containing conductive fibers, wherein the amount of the conductive fibers in the conductive layer is 0.005 g/m2 to 0.2 g/m2.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: October 25, 2011
    Assignee: FUJIFILM Corporation
    Inventor: Kenji Naoi
  • Patent number: 8012676
    Abstract: It is to provide a process for preparing a conductive material in which transparency and conductivity are both high, and storage stability is high, and further, in a process for preparing a conductive material utilizing ultra fine silver particles, to provide a process for preparing a conductive material having high conductivity without requiring a calcination step which has conventionally been required. A process for preparing a conductive material having a conductive pattern containing silver on a support, which process for preparing a conductive material comprises acting at least one of the following mentioned (I) to (IV) on the pattern portion containing silver provided on the support: (I) a reducing substance, (II) a water-soluble phosphorus oxo acid compound, (III) a water-soluble halogen compound, (IV) warm water of 55° C. or higher.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: September 6, 2011
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Takenobu Yoshiki, Shigeki Shino, Kazuhisa Kobayashi
  • Patent number: 7977040
    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: Grant
    Filed: October 16, 2002
    Date of Patent: July 12, 2011
    Assignee: Fujifilm Corporation
    Inventors: Yasuhiro Yoshioka, Takayoshi Oyamada, Eiichi Okutsu
  • Patent number: 7829270
    Abstract: A photosensitive material includes a support and an emulsion layer containing a silver salt emulsion, the photosensitive material is capable of forming a conductive metal film by exposing and developing the emulsion layer, wherein the emulsion layer has a swelling rate of 150% or more.
    Type: Grant
    Filed: May 26, 2006
    Date of Patent: November 9, 2010
    Assignee: FUJIFILM Corporation
    Inventor: Shinichi Nakahira
  • Patent number: 7682780
    Abstract: An industrial X-ray photosensitive material including at least one silver halide emulsion layer on both sides of a transparent support, wherein the silver halide emulsion layer contains tabular silver halide particles having an average particle thickness of less than 0.2 ?m and an aspect ratio of more than 8, a core of the particles which is a core having a volume of 1% or more and less than 3% of a particle volume does not contain Ir or Rh, and a shell of the particles which is a shell having a volume of 97% or more and less than 99% of a particle volume contains at least Ir or Rh. An industrial X-ray photosensitive material having rapid processing suitability, as well as high sensitivity and high contrast is provided.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: March 23, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Masayoshi Fujita, Yoshihisa Hashi
  • Patent number: 7622247
    Abstract: Mixtures of an alkyl vinyl ether/maleic anhydride copolymer or an alkylethylene/maleic anhydride copolymer with cellulose acetate provide protective overcoats for thermally developable materials. These protective overcoats exhibit good adhesion to the emulsion layer, are physically hard, and have good optical clarity while maintaining the sensitometric properties of the materials.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: November 24, 2009
    Assignee: Carestream Health, Inc.
    Inventors: William Donald Ramsden, Chaofeng Zou, Doreen Catherine Lynch, Stacy Marie Ulrich, Sharon Mary Simpson
  • Patent number: 7608391
    Abstract: The present invention provides a photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and a non-photosensitive layer, wherein the non-photosensitive layer includes at least a polymer matting agent having a refractive index of from 1.51 to 1.56 and a glass transition temperature of 90° C. or higher. A photothermographic material which is excellent in film surface properties and photographic properties is provided.
    Type: Grant
    Filed: October 23, 2006
    Date of Patent: October 27, 2009
    Assignee: FUJIFILM Corporation
    Inventor: Yasuhiro Yoshioka
  • Patent number: 7524621
    Abstract: Silver salts of long chain carboxylic acids are prepared from long chain carboxylic acids by sequential addition of at least two different alkali metal hydroxides, one of which is lithium hydroxide, followed by converting the mixture of alkali metal carboxylates to silver carboxylates. Photothermographic materials prepared from such silver carboxylates display improved Dmin aging with little if any affect on other sensitometric properties.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: April 28, 2009
    Assignee: Carestream Health, Inc.
    Inventors: Lilia P. Burleva, David R. Whitcomb
  • Patent number: 7504200
    Abstract: A photothermographic material is disclosed, comprising on one side of a support a light-sensitive layer comprising a light sensitive silver halide, light-insensitive silver salts of aliphatic carboyxlic acids, a reducing agent and a binder resin and a light-insensitive layer and on the other side of the support a light-insensitive layer, wherein the light-insensitive layer on the light-sensitive layer side and the light-insensitive layer on the other side of the support comprises a silicon-containing polymer lubricant and a fluorine-containing compound represented by formula (SF): [Rf-(L1)m1-]p-(L2)n1-(A)q??Formula (SF).
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: March 17, 2009
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Narito Goto, Kiyokazu Morita, Keiko Itaya
  • Patent number: 7498117
    Abstract: A radiation image-able coating includes a curable polymer matrix, a metal complex disposed in the curable polymer matrix, wherein the metal complex is configured to form localized metallic particles when exposed to heat.
    Type: Grant
    Filed: October 31, 2005
    Date of Patent: March 3, 2009
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: William Dorogy, Sterling Chaffins, Michael J Day
  • Patent number: 7468241
    Abstract: Use of certain compounds in black-and-white photothermographic materials improves processing latitude particularly under conditions of high humidity.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: December 23, 2008
    Assignee: Carestream Health, Inc.
    Inventors: Doreen C. Lynch, William D. Ramsden, Sharon M. Simpson, Chaofeng Zou
  • Patent number: 7465533
    Abstract: A photothermographic material having a support, an image forming layer which is disposed on the support and contains at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, at least one non-photosensitive layer which is disposed on the same side of the support as the image forming layer and farther from the support than the image forming layer, and a back layer which includes at least another non-photosensitive layer and is disposed on the opposite side of the support from the image forming layer, wherein the back layer contains a fluorocarbon polymer having a monomer component represented by the following (M2): (M2) a monomer containing a fluorine atom and having an unsaturated bond capable of radical polymerization. An image forming method is also provided.
    Type: Grant
    Filed: March 26, 2007
    Date of Patent: December 16, 2008
    Assignee: FUJIFILM Corporporation
    Inventors: Minoru Sakai, Yoshihisa Tsukada
  • Patent number: 7455961
    Abstract: Disclosed is a photothermographic material comprising on support a light-insensitive silver salt of an aliphatic carboxylic acid, a light-sensitive silver halide and a reducing agent for silver ions, wherein the photothermographic material further comprises a copolymer comprising a backbone comprising a chain having a monomeric repeating unit, represented by formula (1) and a chain having a monomeric repeating unit, represented by formula (2).
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: November 25, 2008
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Rie Sakuragi, Osamu Ishige, Kiyoshi Fukusaka
  • Patent number: 7455960
    Abstract: The invention provides a photothermographic material having, on both sides of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, which is to be exposed with X-rays using a fluorescent intensifying screen, wherein (1) a coating amount of the photosensitive silver halide per one side is from 0.01 g/m2 to 0.45 g/m2 in terms of silver amount; and (2) a crossover (%) is 30% or more, or when parallel light having the same wavelength as a main emission peak wavelength of the fluorescent intensifying screen is incident perpendicular to the surface of the photothermographic material, the parallel light component of transmitted light comprises 5% or more of the incident light. A photothermographic material for medical use having high sensitivity and high image quality is provided.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: November 25, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Takeshi Funakubo
  • Patent number: 7419775
    Abstract: A method of manufacturing a micro-particle dispersion having a hydrophobic protective colloid comprising the steps of: (a) dispensing micro-particles in a hydrophilic dispersant to form a hydrophilic micro-particle dispersion having the hydrophilic dispersant as a protective colloid, and (b) adding a dispersant to the hydrophilic micro-particle dispersion, the dispersant having a functional group capable of ion bonding with a hydrophilic group of the hydrophilic dispersant.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: September 2, 2008
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Hiroto Ito, Kazuhito Ihara
  • Patent number: 7410752
    Abstract: A method of producing an organic silver salt dispersion, the method comprising: mixing a first aqueous solution including a water-soluble silver ion supplier and a second aqueous solution including an alkali metal salt of an organic acid to form an organic silver salt dispersion; wherein, the mixing is conducted in the presence of at least one compound selected from polyacrylamide and derivatives of polyacrylamide, and at least 10 mass % (in terms of silver quantity) of the organic silver salt in the organic silver salt dispersion is formed by simultaneous addition of the first aqueous solution and the second aqueous solution to an aqueous medium followed by mixing.
    Type: Grant
    Filed: September 21, 2005
    Date of Patent: August 12, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Itsuo Fujiwara
  • Patent number: 7407741
    Abstract: The present invention provides a photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a first non-photosensitive organic silver salt, a reducing agent, and a binder, and a non-photosensitive layer including a second non-photosensitive organic silver salt which is different from the first non-photosensitive organic silver salt, wherein particles of the second non-photosensitive organic silver salt have a mean equivalent circular diameter of from 0.03 ?m to 0.5 ?m. A photothermographic material, which exhibits improved color tone of developed silver images, improved resistance to damage from fingerprints, and high resistance to image defects, is provided.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: August 5, 2008
    Assignee: Fujifilm Corporation
    Inventor: Kouta Fukui
  • Patent number: 7396641
    Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducing agent for silver ions, wherein the reducing agent for silver ions is a compound represented by the following formula (PP) and having a molecular weight of from 450 to 3000, and the black and white photothermographic material further comprises a compound represented by the following formula (II).
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: July 8, 2008
    Assignee: Fujifilm Corporation
    Inventor: Kouta Fukui
  • Patent number: 7393625
    Abstract: The present invention provides a photothermographic material having, on one side of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for the organic silver salt, and a binder, and at least one non-photosensitive layer and, on the other side of the support, a non-photosensitive back layer, wherein a total amount of ammonia contained in the two sides is from 5×10?4 mol/m2 to 2×10?2 mol/m2, and a molar ratio (A2/A1) of an ammonia content of the non-photosensitive back layer (A2) to an ammonia content of the layer on the image forming layer side (A1) is from 0.3 to 5.0; or a photothermographic material according to the above, wherein the non-photosensitive back layer includes an ammonium salt, and an ammonia content of the non-photosensitive back layer is from 2 mg/m2 to 100 mg/m2.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: July 1, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Minoru Sakai, Seiichi Yamamoto, Takayoshi Oyamada
  • Patent number: 7384597
    Abstract: An organic silver salt composition used for thermally developable photothermographic material is disclosed, comprising at least two organic acids differing in melting point and their silver salts, wherein a silver salt of a lower-melting organic acid account for 10 to 80 mol % of the silver salts and the lower melting organic acid accounting for 0 to 30 mol % of the acids. A method of manufacturing an organic silver salt compositions also disclosed.
    Type: Grant
    Filed: September 7, 2005
    Date of Patent: June 10, 2008
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Satoshi Ito, Kazuhiko Fujikura
  • Patent number: 7381520
    Abstract: Provided is a photothermographic material comprising, on a support, at least a non-photosensitive layer, and an image forming layer comprising at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, wherein a content of the binder in the image forming layer is from approximately 55.6% to approximately 47.6% by mass ratio. A photothermographic material capable of rapid thermal development and having excellent film quality is provided.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: June 3, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Hajime Nakagawa, Yoshihisa Tsukada
  • Patent number: 7364841
    Abstract: A silver salt photothermographic dry imaging material wherein said material has photographic speeds (1) and (2) determined based on the predetermined conditions and the photographic speed (2) is not more than 1/10 of the photographic speed (1), and the coefficient of determination value R2 of the linear regression line is 0.998-1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscicca and b* is used as the coordinate of the CIE 1976 (L*a*b*) color space, b* of the intersection point of the linear regression line with the ordinate is ?5-5, and gradient (a*/b*) is 0.7-2.5.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: April 29, 2008
    Assignee: Konica Minolta & Medical Graphic, Inc.
    Inventors: Tetsuya Suzuki, Hideki Takiguchi, Toshiyuki Marui, Kazuhiko Fujikura, Kazuhito Ihara, Yasuo Taima, Kenji Ohnuma, Hiroto Ito
  • Patent number: 7358038
    Abstract: The present invention provides a black and white photothermographic material having, on at least one side of a support, an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, as well as an image forming method. The black and white photothermographic material is characterized in that 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having a (111) face as a major face; the tabular grains have at least 2 parallel twin crystal planes in a grain; and a variation coefficient of a distribution of distances between closest twin crystal planes is 20% or less. Also provided is an image forming method that includes image exposure using fluorescent intensifying screens and thermal development.
    Type: Grant
    Filed: January 30, 2006
    Date of Patent: April 15, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Kazutaka Takahashi, Takeshi Funakubo, Kiyoteru Miyake
  • Patent number: 7335466
    Abstract: A silver salt photothermographic dry imaging material including non-photosensitive aliphatic carboxylic acid silver salts; a photosensitive emulsion containing photosensitive silver halide grains; a silver ion reducing agent; a binder; and a cyan coloring leuco dye. A percentage of the photosensitive silver halide grains having a mean particle size of 0.01 or more ?m and 0.04 ?m or less is 5% or more by mass and 50% or less by mass of total photosensitive silver halide grains by conversion into a silver amount.
    Type: Grant
    Filed: May 22, 2006
    Date of Patent: February 26, 2008
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • Patent number: 7332267
    Abstract: Disclosed is a photothermographic material comprising an image forming layer containing at least a light-sensitive silver halide, a light-insensitive organic silver salt, a reducing agent and a binder and a non-image forming layer on at least one surface of a support, wherein 50% by weight or more of the binder is a hydrophilic binder, the light-sensitive material further comprising a metal phthalocyanine compound represented by the following formula (PC-1): wherein M represents a metal atom, R1, R4, R5, R8, R9, R12, R13 and R16 respectively represent a hydrogen atom or a substituent where at least one of R1, R4, R5, R8, R9, R12, R13 and R16 is an electron attractive group and R2, R3, R6, R7, R10, R11, R14 and R15 respectively represent a hydrogen atom or a substituent.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: February 19, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Hajime Nakagawa, Seiichi Yamamoto, Masahiko Taniguchi
  • Patent number: 7326527
    Abstract: A method of processing a photothermographic material by a thermal processor is disclosed, wherein the photothermographic material comprises on one side of a support a light-sensitive layer containing an organic silver salt, silver halide grains, a binder and a reducing agent and a light-insensitive layer and on the other side of the support a back coating layer; the thermal processor uses a transport system in which a feed roller is disposed with being in contact with a bundle of plural stacked film sheets of the photothermographic material so as to feed the uppermost film sheet of the bundle of film sheets through rotation of the feed roller to expose and develop the fed film sheet; and the back coating layer contains a matting agent of an organic resin.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: February 5, 2008
    Assignee: Konica Minolta Medical & Graphic, Inc
    Inventors: Narito Goto, Makoto Sumi
  • Patent number: 7309564
    Abstract: A photothermographic material including, on at least one surface of a support, at least a photosensitive silver halide containing a silver iodide at 40 mol % or more, a non-photosensitive organic silver salt, and a reducing agent, wherein the photothermographic material contains two or more kinds of the reducing agent at the mixing ratio to satisfy at least one of a), b), c) and d): a) a difference between a sensitivity or b) a difference between a maximum density is 0.10 or less, when developed at 120° C. for 10 sec and a sensitivity when developed at 120° C. for 14 sec; c) a difference between a sensitivity or d) a difference between a maximum density is 0.10 or less, when developed at 117° C. for 12 sec and a sensitivity when developed at 123° C. for 12 sec. An image forming method using the photothermographic material is also provided.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: December 18, 2007
    Assignee: Fujifilm Corporation
    Inventors: Yasuhiro Yoshioka, Katsutoshi Yamane, Yasuhiko Goto
  • Patent number: 7309565
    Abstract: Disclosed is an image forming process having the steps of exposing by an exposure device a photothermographic dry imaging material with a support having thereon an image forming layer containing photosensitive silver halide, a reducing agent for silver ions, a binder and a light-insensitive organic silver salt, and developing the photothermographic dry imaging material by a developing device, while the photothermographic dry imaging material is transported, wherein a surface having the image forming layer is brought into contact with sticky rollers during or before each of exposing and developing so as to make an amount of peel-off static electrification between the photothermographic dry imaging material and the sticky roller to be from ?5 to +5 kV.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: December 18, 2007
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventor: Hiroyuki Yanagisawa
  • Patent number: 7303865
    Abstract: A photothermographic material including, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, and a non-photosensitive layer, wherein the photothermographic material contains a metal phthalocyanine dye represented by formula (I): wherein, M represents a metal atom; R1, R2, R3, R4, R5, R6, R7, and R8 each independently represent a hydrogen atom or a substituent, with at least one of them being a substituent; X1, X2, X3, and X4 each independently represent a hydrogen atom or a substituent; and at least one of R1, R2, R3, R4, R5, R6, R7, R8, X1, X2, X3, and X4 is an oil-soluble group. The invention provides a photothermographic material which exhibits preferable image tone and excellent image storability.
    Type: Grant
    Filed: October 19, 2005
    Date of Patent: December 4, 2007
    Assignee: FUJIFILM Corporation
    Inventor: Yasuhiro Yoshioka
  • Patent number: 7303864
    Abstract: The invention provides a black and white photothermographic material comprising an image forming layer containing on at least one side of a support at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, wherein: the non-photosensitive organic silver salt comprises at least one compound selected from a silver salt of an azole compound or a silver salt of a mercapto compound; and the photothermographic material further comprises, a compound that can be one-electron-oxidized to provide a one-electron oxidation product which releases one or more electrons, and an adsorptive redox compound having a group adsorbable to the silver halide and a reducing group in the molecule. The invention provides a black and white photothermographic material having high image quality and an excellent storability, and an image forming method.
    Type: Grant
    Filed: March 28, 2005
    Date of Patent: December 4, 2007
    Assignee: FUJIFILM Corporation
    Inventor: Tomoyuki Ohzeki
  • Patent number: 7279273
    Abstract: The present invention provides a photothermographic material having, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a first non-photosensitive organic silver salt, a reducing agent, and a binder, and a non-photosensitive layer including a second non-photosensitive organic silver salt that is different from the first non-photosensitive organic silver salt on the same side of the support as the image forming layer and farther from the support than the image forming layer, wherein the photothermographic material further has a non-photosensitive intermediate layer between the image forming layer and the non-photosensitive layer, and 50% by weight or more of a binder in the non-photosensitive intermediate layer is a polymer latex. A photothermographic material, which exhibits improved image storability and improved resistance to image defects, is provided.
    Type: Grant
    Filed: August 21, 2006
    Date of Patent: October 9, 2007
    Assignee: Fujifilm Corporation
    Inventor: Kouta Fukui
  • Patent number: 7267933
    Abstract: An image forming method using a photothermographic material including, on at least one surface of a support, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, in which (1) the photothermographic material is exposed and thermally developed during transportation at a transportation speed of 23 mm/sec or faster, (2) the non-photosensitive organic silver salt contains 30 mol % to 85 mol % of silver behenate and an amount of the time until a leading end of the photothermographic material reaches a thermal development station after a power source for ae thermal developing apparatus is turned on is 15 minutes or less, or (3) a coating amount of silver inf the photothermographic material is 1.9 g/m2 or less and a thermal development time is 12 sec or less.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: September 11, 2007
    Assignee: Fujifilm Corporation
    Inventors: Takayoshi Oyamada, Senzo Sasaoka, Katsutoshi Yamane
  • Patent number: 7264920
    Abstract: A photothermographic material having, on both sides of a support, an image forming layer including at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for silver ions, and a binder, and an image forming method utilizing the same, characterized in that the image forming layer on a first side has an infectious development property, and the image forming layer on the other side does not have an infectious development property or has an infectious development property that is smaller than that of the image forming layer on the first side. The invention provides a double-sided type photothermographic material having improved photographic properties and an image forming method utilizing the same.
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: September 4, 2007
    Assignee: Fujifilm Corporation
    Inventors: Tomoyuki Ohzeki, Fumito Nariyuki
  • Patent number: 7264919
    Abstract: A mono-sheet heat-developable photosensitive material, which comprises a layer containing a light-sensitive silver halide, a light-insensitive organic fatty acid silver salt, a thermal developer and a binder on a support, and exhibits substantially no sensitivity after being subjected to heat-development.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: September 4, 2007
    Assignee: Fujifilm Corporation
    Inventors: Katsutoshi Yamane, Masatoshi Nakanishi, Fumito Nariyuki
  • Patent number: 7261999
    Abstract: 1,3-Diaryl-substituted urea compounds have been found to function as post-processing stabilizers in photothermographic materials. These compounds can be presented by the following Structure (I): wherein R1 and R2 are the same or different substituted or unsubstituted aryl group.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: August 28, 2007
    Assignee: Carestream Health, Inc.
    Inventors: Bryan V. Hunt, Kumars Sakizadeh
  • Patent number: 7232652
    Abstract: A photothermographic material including, on at least one side of a support, an image forming layer including at least a photosensitive silver halide, a first organic silver salt, a reducing agent, and a binder, and at least one non-photosensitive layer which is disposed on the same side as the image forming layer and farther from the support than the image forming layer, wherein 50% or more of a total projected area of the photosensitive silver halide is occupied by tabular grains having a silver iodide content of 40 mol % or higher and an aspect ratio of 2 or more, and the non-photosensitive layer comprises a second organic silver salt, and an image forming method using the same. The invention provides a photothermographic material and an image forming method excellent in image tone and image storability.
    Type: Grant
    Filed: November 7, 2005
    Date of Patent: June 19, 2007
    Assignee: Fujifilm Corporation
    Inventor: Kouta Fukui
  • Patent number: 7229752
    Abstract: A photothermographic imaging material containing a support having thereon: (i) a photosensitive layer containing photosensitive silver halide grains, light-insensitive organic silver salt grains, a binder, and a reducing agent for silver ions; and (ii) one or more non-photosensitive layers, wherein a powder compound which is preliminarily dried at a lower temperature than a temperature used for thermal development is incorporated in the photosensitive layer or in the non-photosensitive layer.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: June 12, 2007
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Koji Kuwano, Takayuki Sasaki
  • Patent number: 7229751
    Abstract: A photothermographic imaging material including a support having thereon an image forming layer containing light-insensitive organic silver salt grains, photosensitive silver halide grains, a reducing agent for silver ions and a binder, wherein: (i) each of the photosensitive silver halide grains produces a larger number of latent images in a surface portion of the grain than in an inner portion of the grain by exposure to light; (ii) each of the photosensitive silver halide grains produces a larger number of latent images in the inner portion of the grain than in the surface portion of the grain after being subjected to a thermal development; (iii) a surface photographic speed of each of the photosensitive silver halide grains decreases after being subjected to the thermal development; and (iv) the photothermographic imaging material contains a reducible silver salt compound represented by Formula (I) described in the specification.
    Type: Grant
    Filed: November 16, 2004
    Date of Patent: June 12, 2007
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Soc Man Ho Kimura, Narito Goto
  • Patent number: 7226728
    Abstract: The present invention provides a photothermographic material having: a support and an image-forming layer including a photosensitive silver halide, a non-photosensitive organic silver salt, a reducer, and a binder on at least one surface of the support, wherein the photothermographic material further contains a dye having a half breadth of 100 nm or less at a maximum absorbance peak, and 50 mass % or more of a binder in an outermost layer on a dye-containing surface is a polymer latex.
    Type: Grant
    Filed: September 12, 2005
    Date of Patent: June 5, 2007
    Assignee: Fujifilm Corporation
    Inventor: Rikio Inoue
  • Patent number: 7220536
    Abstract: A photothermographic imaging material comprising a support having thereon, (a) a photosensitive layer containing an organic silver salt, photosensitive silver halide grains, a reducing agent and a binder, (b) a light-insensitive layer, and (c) a protective layer, wherein a weight reducing value from 25° C. to 100° C. by a heat drying weight measurement of the photographic imaging material is not more than 0.4% based on a weight value at 25° C.
    Type: Grant
    Filed: October 17, 2005
    Date of Patent: May 22, 2007
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Koji Kuwano, Takayuki Sasaki, Kazuhiro Kido
  • Patent number: 7214464
    Abstract: The present invention is directed to a method of forming a positive image in a photothermographic assembly comprising a photothermographic material and an intensifying means for converting ionizing radiation, wherein the assembly has been imagewise exposed to ionizing radiation to form a latent image in the photothermographic material. The photothermographic material has at least one imaging layer comprising a potentially negative-working emulsion, wherein thermal development of unexposed silver salts in exposed areas relative to unexposed areas is inhibiting when thermally developing the imagewise exposed assembly, thereby producing a positive image. The present invention is also directed to a photothermographic assembly that can be used in the present process in which a positive image characterized by high speed and discrimination is formed when exposed and thermally heated above 150° C.
    Type: Grant
    Filed: April 29, 2004
    Date of Patent: May 8, 2007
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Roberts, Kurt D. Sieber, Paul B. Gilman, Jr.
  • Patent number: 7211374
    Abstract: A package of thermographic or photothermographic materials has a primary packaging enclosure, and optionally a secondary packaging enclosure, containing one or more of the materials (such as individual sheets). A non-photosensitive indicator device is associated with either or both of the packaging enclosures. This non-photosensitive indicator device is adapted to provide a visually observable indication of a predetermined cumulative thermal exposure and a predetermined temperature event (that is, single temperature event) of the package. This indicator device is able to provide information as to the time-temperature history of the package.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: May 1, 2007
    Assignee: Eastman Kodak Company
    Inventors: Mark E. Irving, David H. Levy, James H. Reynolds
  • Patent number: 7211373
    Abstract: A photothermographic material comprising a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for a silver ion and a binder on one surface of a support, wherein a silver behenate-content of the non-photosensitive organic silver salt is 40 to 70 mol %, and the photothermographic material comprises a compound that can be one-electron-oxidized to provide a one-electron oxidation product, which further releases at least 1 electron, one of during and after a subsequent reaction.
    Type: Grant
    Filed: April 1, 2003
    Date of Patent: May 1, 2007
    Assignee: Fujifilm Corporation
    Inventors: Tomoyuki Ohzeki, Kohzaburoh Yamada
  • Patent number: 7208264
    Abstract: A photothermographic material wherein at least an image-forming layer on at least one surface of a support, the image-forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder, wherein, an outermost layer is provided as a layer most remote from the support on the side of the support where the image-forming layer is provided, a non-photosensitive intermediate layer A containing a binder and provided in adjacent with the image-forming layer and between the image-forming layer and the outermost layer, wherein the binder of the non-photosensitive intermediate layer A contains 80% by mass or more of a polymer formed by copolymerizing a monomer represented by Formula (M), a non-photosensitive intermediate layer B containing a binder and provided between the non-photosensitive intermediate layer A and the outermost layer, and the binder of the non-photosensitive intermediate layer B contains 50% by mass or more of a hydrophilic polymer derive
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: April 24, 2007
    Assignee: FujiFilm Corporation
    Inventors: Keiichi Suzuki, Kouta Fukui, Minoru Sakai
  • Patent number: 7202018
    Abstract: A silver salt photothermographic material is disclosed, comprising light-insensitive organic silver salt grains and light-sensitive silver halide grains, a reducing agent for silver ions and a binder, wherein the reducing agent is a compound represented by the following formula (1) and the light-sensitive layer further comprises a hindered phenol represented by the following formula (2)
    Type: Grant
    Filed: September 8, 2003
    Date of Patent: April 10, 2007
    Assignee: Konica Corporation
    Inventors: Kazuaki Nakamura, Ryohei Iwamoto, Norio Miura, Kiyoshi Fukusaka
  • Patent number: 7195865
    Abstract: Disclosed are a method for preparing grains of silver salt of an organic acid by reacting a solution containing silver ions and a solution containing an alkali metal salt of an organic acid, in which the reaction is performed in sealed mixing means and which comprises steps of supplying the solution containing silver ions into a reaction field solution before introduced into the sealed mixing means, and supplying the solution containing an alkali metal salt of an organic acid into the reaction field solution or sealed mixing means to which the solution containing silver ions has been supplied, etc. According to the present invention, high quality grains of silver salt of an organic acid can be efficiently produced at low cost.
    Type: Grant
    Filed: April 2, 2004
    Date of Patent: March 27, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoyuki Kawanishi, Takashi Ando, Yoichi Nagai
  • Patent number: 7192694
    Abstract: A photothermographic material containing, on a substrate, at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder in which the total silver iodide content of the photosensitive silver halide is 40 mol % or more and 100 mol % or less, and the coating amount of the photosensitive silver halide, in terms of an amount of silver, is 0.0005 g/m2 or more and 0.4 g/m2 or less, as well as an image forming method for the photothermographic material which comprises exposing the photothermographic material by using a semiconductor laser having an emission peak intensity at a wavelength of from 350 nm to 450 nm as a light source.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: March 20, 2007
    Assignee: Fujifilm Corporation
    Inventor: Fumito Nariyuki
  • Patent number: 7186501
    Abstract: The present invention provides a photothermographic material, having a support and an image-forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, and a reducer for the organic silver salt on at least one surface of the support, wherein the image-forming layer contains a hydrophilic polymer which has a vinyl monomer unit containing a quaternary nitrogen atom-containing group or a nitrogen-containing heterocyclic group.
    Type: Grant
    Filed: September 19, 2005
    Date of Patent: March 6, 2007
    Assignee: Fujifilm Corporation
    Inventor: Seiichi Yamamoto
  • Patent number: 7183024
    Abstract: The present invention is directed to a method of forming a positive image in a photothermographic element comprising a potentially negative-working emulsion wherein fog density development is imagewise inhibited in exposed areas of the image upon thermal development. In one embodiment of the invention, a density-inhibiting agent is released during thermal development which agent inhibits the thermal development of unexposed silver salts in the exposed areas relative to the unexposed areas. The method preferably comprises imagewise exposing the film with a non-solarizing amount of radiation/energy to form a latent image and thermally developing the latent image in a single development step to produce a positive image in the element. The present invention is also directed to a photothermographic element that can be used in the present process in which a positive image characterized by high speed and discrimination is formed when exposed and thermally heated above 150° C.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: February 27, 2007
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Roberts, Paul B. Gilman, Donald L. Black, Kurt M. Schroeder