Silver Salt Of Organic Acid Patents (Class 430/620)
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Patent number: 9901850Abstract: 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: GrantFiled: December 1, 2011Date of Patent: February 27, 2018Assignee: AMIAD WATER SYSTEMS LTD.Inventors: Boaz Zur, Rudolph Kaner, Ruven Shtekelmacher, Yitzhak Sabag
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Patent number: 8043800Abstract: 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: GrantFiled: September 17, 2010Date of Patent: October 25, 2011Assignee: FUJIFILM CorporationInventor: Kenji Naoi
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Patent number: 8012676Abstract: 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: GrantFiled: June 22, 2007Date of Patent: September 6, 2011Assignee: Mitsubishi Paper Mills LimitedInventors: Takenobu Yoshiki, Shigeki Shino, Kazuhisa Kobayashi
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Patent number: 7977040Abstract: 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: GrantFiled: October 16, 2002Date of Patent: July 12, 2011Assignee: Fujifilm CorporationInventors: Yasuhiro Yoshioka, Takayoshi Oyamada, Eiichi Okutsu
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Patent number: 7829270Abstract: 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: GrantFiled: May 26, 2006Date of Patent: November 9, 2010Assignee: FUJIFILM CorporationInventor: Shinichi Nakahira
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Patent number: 7682780Abstract: 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: GrantFiled: June 18, 2009Date of Patent: March 23, 2010Assignee: FUJIFILM CorporationInventors: Masayoshi Fujita, Yoshihisa Hashi
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Patent number: 7622247Abstract: 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: GrantFiled: January 14, 2008Date of Patent: November 24, 2009Assignee: Carestream Health, Inc.Inventors: William Donald Ramsden, Chaofeng Zou, Doreen Catherine Lynch, Stacy Marie Ulrich, Sharon Mary Simpson
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Patent number: 7608391Abstract: 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: GrantFiled: October 23, 2006Date of Patent: October 27, 2009Assignee: FUJIFILM CorporationInventor: Yasuhiro Yoshioka
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Patent number: 7524621Abstract: 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: GrantFiled: September 21, 2007Date of Patent: April 28, 2009Assignee: Carestream Health, Inc.Inventors: Lilia P. Burleva, David R. Whitcomb
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Patent number: 7504200Abstract: 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: GrantFiled: January 24, 2008Date of Patent: March 17, 2009Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Narito Goto, Kiyokazu Morita, Keiko Itaya
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Patent number: 7498117Abstract: 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: GrantFiled: October 31, 2005Date of Patent: March 3, 2009Assignee: Hewlett-Packard Development Company, L.P.Inventors: William Dorogy, Sterling Chaffins, Michael J Day
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Patent number: 7468241Abstract: Use of certain compounds in black-and-white photothermographic materials improves processing latitude particularly under conditions of high humidity.Type: GrantFiled: September 21, 2007Date of Patent: December 23, 2008Assignee: Carestream Health, Inc.Inventors: Doreen C. Lynch, William D. Ramsden, Sharon M. Simpson, Chaofeng Zou
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Patent number: 7465533Abstract: 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: GrantFiled: March 26, 2007Date of Patent: December 16, 2008Assignee: FUJIFILM CorporporationInventors: Minoru Sakai, Yoshihisa Tsukada
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Patent number: 7455960Abstract: 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: GrantFiled: October 5, 2006Date of Patent: November 25, 2008Assignee: FUJIFILM CorporationInventor: Takeshi Funakubo
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Patent number: 7455961Abstract: 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: GrantFiled: September 21, 2007Date of Patent: November 25, 2008Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Rie Sakuragi, Osamu Ishige, Kiyoshi Fukusaka
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Patent number: 7419775Abstract: 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: GrantFiled: November 8, 2005Date of Patent: September 2, 2008Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Hiroto Ito, Kazuhito Ihara
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Patent number: 7410752Abstract: 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: GrantFiled: September 21, 2005Date of Patent: August 12, 2008Assignee: FUJIFILM CorporationInventor: Itsuo Fujiwara
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Patent number: 7407741Abstract: 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: GrantFiled: July 17, 2006Date of Patent: August 5, 2008Assignee: Fujifilm CorporationInventor: Kouta Fukui
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Patent number: 7396641Abstract: 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: GrantFiled: September 14, 2007Date of Patent: July 8, 2008Assignee: Fujifilm CorporationInventor: Kouta Fukui
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Patent number: 7393625Abstract: 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: GrantFiled: March 13, 2007Date of Patent: July 1, 2008Assignee: FUJIFILM CorporationInventors: Minoru Sakai, Seiichi Yamamoto, Takayoshi Oyamada
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Patent number: 7384597Abstract: 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: GrantFiled: September 7, 2005Date of Patent: June 10, 2008Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Satoshi Ito, Kazuhiko Fujikura
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Patent number: 7381520Abstract: 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: GrantFiled: March 14, 2006Date of Patent: June 3, 2008Assignee: FUJIFILM CorporationInventors: Hajime Nakagawa, Yoshihisa Tsukada
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Patent number: 7364841Abstract: 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: GrantFiled: August 30, 2006Date of Patent: April 29, 2008Assignee: Konica Minolta & Medical Graphic, Inc.Inventors: Tetsuya Suzuki, Hideki Takiguchi, Toshiyuki Marui, Kazuhiko Fujikura, Kazuhito Ihara, Yasuo Taima, Kenji Ohnuma, Hiroto Ito
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Patent number: 7358038Abstract: 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: GrantFiled: January 30, 2006Date of Patent: April 15, 2008Assignee: FUJIFILM CorporationInventors: Kazutaka Takahashi, Takeshi Funakubo, Kiyoteru Miyake
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Patent number: 7335466Abstract: 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: GrantFiled: May 22, 2006Date of Patent: February 26, 2008Assignee: Konica Minolta Holdings, Inc.Inventors: Hiroshi Kashiwagi, Narito Goto
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Patent number: 7332267Abstract: 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: GrantFiled: July 21, 2006Date of Patent: February 19, 2008Assignee: FUJIFILM CorporationInventors: Hajime Nakagawa, Seiichi Yamamoto, Masahiko Taniguchi
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Patent number: 7326527Abstract: 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: GrantFiled: February 20, 2007Date of Patent: February 5, 2008Assignee: Konica Minolta Medical & Graphic, IncInventors: Narito Goto, Makoto Sumi
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Patent number: 7309565Abstract: 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: GrantFiled: October 19, 2006Date of Patent: December 18, 2007Assignee: Konica Minolta Medical & Graphic, Inc.Inventor: Hiroyuki Yanagisawa
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Patent number: 7309564Abstract: 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: GrantFiled: November 9, 2005Date of Patent: December 18, 2007Assignee: Fujifilm CorporationInventors: Yasuhiro Yoshioka, Katsutoshi Yamane, Yasuhiko Goto
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Patent number: 7303864Abstract: 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: GrantFiled: March 28, 2005Date of Patent: December 4, 2007Assignee: FUJIFILM CorporationInventor: Tomoyuki Ohzeki
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Patent number: 7303865Abstract: 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: GrantFiled: October 19, 2005Date of Patent: December 4, 2007Assignee: FUJIFILM CorporationInventor: Yasuhiro Yoshioka
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Patent number: 7279273Abstract: 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: GrantFiled: August 21, 2006Date of Patent: October 9, 2007Assignee: Fujifilm CorporationInventor: Kouta Fukui
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Patent number: 7267933Abstract: 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: GrantFiled: May 30, 2003Date of Patent: September 11, 2007Assignee: Fujifilm CorporationInventors: Takayoshi Oyamada, Senzo Sasaoka, Katsutoshi Yamane
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Patent number: 7264919Abstract: 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: GrantFiled: April 25, 2003Date of Patent: September 4, 2007Assignee: Fujifilm CorporationInventors: Katsutoshi Yamane, Masatoshi Nakanishi, Fumito Nariyuki
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Patent number: 7264920Abstract: 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: GrantFiled: February 28, 2005Date of Patent: September 4, 2007Assignee: Fujifilm CorporationInventors: Tomoyuki Ohzeki, Fumito Nariyuki
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Patent number: 7261999Abstract: 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: GrantFiled: November 22, 2005Date of Patent: August 28, 2007Assignee: Carestream Health, Inc.Inventors: Bryan V. Hunt, Kumars Sakizadeh
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Patent number: 7232652Abstract: 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: GrantFiled: November 7, 2005Date of Patent: June 19, 2007Assignee: Fujifilm CorporationInventor: Kouta Fukui
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Patent number: 7229751Abstract: 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: GrantFiled: November 16, 2004Date of Patent: June 12, 2007Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Soc Man Ho Kimura, Narito Goto
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Patent number: 7229752Abstract: 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: GrantFiled: August 2, 2005Date of Patent: June 12, 2007Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Koji Kuwano, Takayuki Sasaki
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Patent number: 7226728Abstract: 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: GrantFiled: September 12, 2005Date of Patent: June 5, 2007Assignee: Fujifilm CorporationInventor: Rikio Inoue
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Patent number: 7220536Abstract: 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: GrantFiled: October 17, 2005Date of Patent: May 22, 2007Assignee: Konica Minolta Medical & Graphic, Inc.Inventors: Koji Kuwano, Takayuki Sasaki, Kazuhiro Kido
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Patent number: 7214464Abstract: 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: GrantFiled: April 29, 2004Date of Patent: May 8, 2007Assignee: Eastman Kodak CompanyInventors: Michael R. Roberts, Kurt D. Sieber, Paul B. Gilman, Jr.
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Patent number: 7211373Abstract: 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: GrantFiled: April 1, 2003Date of Patent: May 1, 2007Assignee: Fujifilm CorporationInventors: Tomoyuki Ohzeki, Kohzaburoh Yamada
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Patent number: 7211374Abstract: 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: GrantFiled: February 25, 2005Date of Patent: May 1, 2007Assignee: Eastman Kodak CompanyInventors: Mark E. Irving, David H. Levy, James H. Reynolds
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Patent number: 7208264Abstract: 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 deriveType: GrantFiled: March 4, 2005Date of Patent: April 24, 2007Assignee: FujiFilm CorporationInventors: Keiichi Suzuki, Kouta Fukui, Minoru Sakai
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Patent number: 7202018Abstract: 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: GrantFiled: September 8, 2003Date of Patent: April 10, 2007Assignee: Konica CorporationInventors: Kazuaki Nakamura, Ryohei Iwamoto, Norio Miura, Kiyoshi Fukusaka
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Patent number: 7195865Abstract: 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: GrantFiled: April 2, 2004Date of Patent: March 27, 2007Assignee: Fuji Photo Film Co., Ltd.Inventors: Naoyuki Kawanishi, Takashi Ando, Yoichi Nagai
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Patent number: 7192694Abstract: 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: GrantFiled: November 7, 2003Date of Patent: March 20, 2007Assignee: Fujifilm CorporationInventor: Fumito Nariyuki
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Patent number: 7186501Abstract: 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: GrantFiled: September 19, 2005Date of Patent: March 6, 2007Assignee: Fujifilm CorporationInventor: Seiichi Yamamoto
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Patent number: 7183024Abstract: 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: GrantFiled: June 12, 2003Date of Patent: February 27, 2007Assignee: Eastman Kodak CompanyInventors: Michael R. Roberts, Paul B. Gilman, Donald L. Black, Kurt M. Schroeder