Polyhetero Atom Ring Patents (Class 430/614)
  • Patent number: 7455959
    Abstract: The invention provides a color photographic element comprising at least one light-sensitive silver halide emulsion layer or a non silver-containing light-insensitive layer, in which at least one of these layers contains a colorless imidazole compound of formula (I) that undergoes less than 10% chemical or redox reaction with oxidized developer and which enables the photographic speed of the element to be increased by at least 0.
    Type: Grant
    Filed: October 1, 2004
    Date of Patent: November 25, 2008
    Assignee: Eastman Kodak Company
    Inventors: Bernard A. Clark, Philip A. Allway, Tania Zuberi, Stephen P. Singer, Charles E. Heckler, Louis E. Friedrich
  • Patent number: 7384731
    Abstract: A method for forming color images comprising subjecting a silver halide color photosensitive material to a development processing in the presence of a compound (A) defined below, wherein the silver halide color photosensitive material having a blue-sensitive unit, a green-sensitive unit and a red-sensitive unit, each of which comprises at least one silver halide emulsion layer, and at least one non-light-sensitive layer on a support, compound (A): a heterocyclic compound having one or two hetero atoms, the heterocyclic compound being capable of increasing speed of the silver halide color photosensitive material by the presence thereof in comparison to the case where the heterocyclic compound is absent.
    Type: Grant
    Filed: September 21, 2004
    Date of Patent: June 10, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Junichiro Hosokawa, Naoharu Kiyoto, Yoshio Ishii, Takanori Hioki, Katsumi Kobayashi, Takashi Hoshimiya
  • Patent number: 7303851
    Abstract: Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.
    Type: Grant
    Filed: September 29, 2003
    Date of Patent: December 4, 2007
    Assignee: Fujifilm Corporation
    Inventors: Mitsunori Hirano, Kunio Ishigaki, Tokuju Oikawa
  • Patent number: 7267935
    Abstract: Incorporating a crown ether-alkali metal complex cation of an enolate anion of an aldehyde having at least one electron withdrawing group in the alpha (?) position, provides thermally developable materials with imaging properties that have little change with changes in humidity. Both photothermographic and thermographic materials are provided, and particularly photothermographic materials having lower silver coverage.
    Type: Grant
    Filed: June 19, 2006
    Date of Patent: September 11, 2007
    Assignee: Carestream Health, Inc.
    Inventors: Sharon M. Simpson, Kumars Sakizadeh
  • Patent number: 7258970
    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: Grant
    Filed: August 8, 2002
    Date of Patent: August 21, 2007
    Assignee: Fujifilm Corporation
    Inventors: Yasuhiro Yoshioka, Takahiro Ishizuka, Terukazu Yanagi
  • 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: 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: 7175977
    Abstract: A black and white monosheet thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one five-membered heterocyclic ring compound selected from the group consisting of optionally substituted, optionally annelated 1-thia-2,3-diazole compounds; optionally substituted, optionally annelated 1-thia-2,5-diazole compounds; optionally substituted 1-thia-2,4-diazole compounds; optionally substituted 1-thia-3,4-diazole compounds; optionally substituted thiatriazole compounds; optionally substituted, optionally annelated 1-seleno-2,3-diazole compounds; optionally substituted, optionally annelated 1-seleno-2,5-diazole compounds; optionally substituted 1-seleno-2,4-diazole compounds; optionally substituted 1-seleno-3,4-diazole compounds; and optionally substituted selenotriazole compounds, with the provi
    Type: Grant
    Filed: November 30, 2004
    Date of Patent: February 13, 2007
    Assignee: Agfa-Gevaert
    Inventors: Ingrid Geuens, Johan Loccufier
  • Patent number: 7153638
    Abstract: A silver halide color photosensitive material comprising a support and, superimposed thereon, a blue-sensitive layer unit, a green-sensitive layer unit and a red-sensitive layer unit, each of these light-sensitive layer units composed of at least one silver halide emulsion layer, together with at least one nonphotosensitive layer, wherein at least one compound (A) and at least one compound (B) are contained, the compound (A) being a heterocyclic compound of less than 4.5 C log P which when added, is capable of enhancing the sensitivity of the silver halide color photosensitive material as compared with that exhibited when not added, the compound (B) being a heterocyclic compound of 4.5 or greater C log P which when added, is capable of enhancing the sensitivity of the silver halide color photosensitive material as compared with that exhibited when not added.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: December 26, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichiro Hosokawa, Takanori Hioki
  • Patent number: 7125657
    Abstract: The present invention provides a photothermographic material including a support having disposed thereon an image-forming layer that contains at least a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent and a binder, and further including a compound represented by the following formula (I): A-(W)n-P??(I) wherein A represents an atomic group having at least two mercapto groups as the substituent; W represents a divalent linking group; n represents 0 or 1; and P represents a pyrazolidone group.
    Type: Grant
    Filed: December 16, 2003
    Date of Patent: October 24, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuyuki Watanabe, Hiroyuki Mifune
  • Patent number: 7097963
    Abstract: Black-and-white, aqueous-based, silver halide-containing photothermographic materials have increased stability after imaging with the incorporation of at least 0.0002 mol/m2 of a halogen-substituted tetraazaindene compound.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: August 29, 2006
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Kumars Sakizadeh, George J. Burgmaier, Roger L. Klaus
  • Patent number: 7094524
    Abstract: Thermally developable photothermographic materials comprise a backside layer that includes a backside stabilizer to reduce fog formation in high humidity conditions, thereby providing improved shelf stability. Useful backside stabilizers include an amine organic base whose conjugate acid has a pKa greater than 5. These backside stabilizers can be provided particularly in non-photosensitive compositions that include an antihalation composition.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: August 22, 2006
    Assignee: Eastman Kodak Company
    Inventors: Steven H. Kong, Kumars Sakizadeh, William D. Ramsden
  • Patent number: 7060425
    Abstract: A color photographic material is described containing a compound of formula (I) wherein, if n=1, R1 is, inter alia, a radical of formula (II), and, if n=2, R1 is unsubstituted or C1–C4alkyl- or hydroxy-substituted phenylene or naphthylene; or —R12—X—R13—, and other residues are as defined in claim 1. The compound of formula (I) is effective as scavenger of the oxidized form of the developer (Dox scavenger), especially when contained in an interlayer between light sensitive layers. Selected compounds of this class can also be used as additives, for example as dye stabilizer, in color photographic materials, or as an antioxidant for organic materials.
    Type: Grant
    Filed: October 11, 1999
    Date of Patent: June 13, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Suruliappa Gowper Jeganathan, Stéphan Biry, Peter Nesvadba, David George Leppard
  • Patent number: 7037641
    Abstract: A silver halide emulsion sheet for detecting track of charged elementary particles, in which emulsion at least one silver halide emulsion layer and at least one hydrophilic protective colloid layer are applied on both surfaces of a transparent support, and a compound selected from benzotriazoles is contained in said at least one silver halide emulsion layer. A processing method for processing the above-described silver halide emulsion sheet with a developer comprising a developing agent represented by formula (A): wherein R1 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group. A developer for use in developing the above-described silver halide emulsion sheet, comprising a developing agent represented by the above-mentioned formula (A).
    Type: Grant
    Filed: May 18, 2005
    Date of Patent: May 2, 2006
    Assignee: Fuji Photo Film Co.,Ltd.
    Inventor: Ken-ichi Kuwabara
  • Patent number: 7029834
    Abstract: Thermally developable photothermographic materials comprise a backside layer that includes a backside stabilizer to reduce fog formation in high humidity conditions, thereby providing improved shelf stability. Useful backside stabilizers are nitrogen-containing aromatic heterocyclic compounds. These backside stabilizers can be provided particularly in non-photosensitive compositions that include an antihalation composition.
    Type: Grant
    Filed: October 15, 2003
    Date of Patent: April 18, 2006
    Assignee: Eastman Kodak Company
    Inventors: Steven H. Kong, Kumars Sakizadeh
  • Patent number: 7026109
    Abstract: The present invention provides a photothermographic material, comprising a photosensitive silver halide, a non-photosensitive organic solvent salt, a reducing agent for a silver ion, and a binder on one face of a support, for being applied by using an organic solvent, the photothermographic material further comprising at least one compound selected from the group of compounds consisting of: a compound represented by the following general formula (1), a compound having a ?-lactam ring, a compound having a group that is adsorptive to a silver halide and a group that reduces a silver halide and a precursor thereof:
    Type: Grant
    Filed: August 4, 2003
    Date of Patent: April 11, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tomoyuki Ohzeki, Hiroyuki Mifune, Tadashi Inaba, Kohzaburoh Yamada, Katsuyuki Watanabe
  • Patent number: 7014989
    Abstract: Black-and-white, aqueous-based, silver halide-containing photothermographic materials have increased stability after imaging with the incorporation of at least 0.00005 mol/m2 of a 4-substituted urazole.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: March 21, 2006
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Simpson, Kumars Sakizadeh
  • Patent number: 6964842
    Abstract: Aqueous-based photothermographic materials comprise a hydrophilic binder, preformed silver halides, an organic silver salt, a reducing agent composition, and one or more benzothiazolium, benzoselenazolium, or benzotellurazolium salts as antifoggants. These photothermographic materials can be used in combination with phosphor intensifying screens for radiographic imaging.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: November 15, 2005
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Roger L. Klaus
  • Patent number: 6951711
    Abstract: A silver halide color photographic lightsensitive material containing at least one compound capable of increasing photographic speed, the compound having at least three heteroatoms in its molecule, and wherein at least one layer of the silver halide emulsion layers comprises an emulsion, the emulsion consisting of a lightsensitive silver halide emulsion wherein 50% or more in number of all the silver halide grains are occupied by tabular grains having (111) faces as main planes, the tabular grains (i) composed of silver iodobromide or silver chloroiodobromide, (ii) having an equivalent circle diameter of 1.0 ?m or more and a thickness of 0.15 ?m or less, and (iii) composed of core portions of 0.1 ?m or less thickness free of growth ring structure and composed of silver iodobromide and shell portions having ten or more dislocation lines.
    Type: Grant
    Filed: October 23, 2003
    Date of Patent: October 4, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaaki Miki, Yoshiyasu Inami, Junichiro Hosokawa
  • Patent number: 6929906
    Abstract: A silver halide color photosensitive material comprises at least one light-sensitive silver halide emulsion layer and at least one nonlight-sensitive layer. At least one of the nonlight-sensitive layers contains colloidal silver. The colloidal silver-containing nonlight-sensitive layer or a nonlight-sensitive layer adjacent to the colloidal silver-containing nonlight-sensitive layer contains a compound capable of releasing a development inhibitor or a precursor thereof by a coupling reaction with an oxidized developing agent. At least one layer selected from the group consisting of the light-sensitive silver halide emulsion layer and the nonlight-sensitive layer contains a compound (B), which is a compound having at least three hetero atoms and capable of enhancing the photographic speed of the photosensitive material in comparison to the same photosensitive materials without the compound.
    Type: Grant
    Filed: October 30, 2003
    Date of Patent: August 16, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoshio Ishii, Koji Takaku
  • Patent number: 6924089
    Abstract: An object of the present invention is to provide a novel heat-developable photosensitive material which hardly exerts an influence on the image color tone and exhibits high sensitivity. Disclosed is a heat-developable photosensitive material comprises, on the same surface of a substrate, at least (a) photosensitive silver halide, (b) a reducible silver salt, (c) a compound represented by the general formula (5), (d) a binder, (e) a compound represented by the general formula (6) or (7), and (f) a compound represented by the general formula (3).
    Type: Grant
    Filed: August 1, 2002
    Date of Patent: August 2, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toyohisa Oya, Hirokazu Kyota, Kouta Fukui
  • Patent number: 6916600
    Abstract: A silver halide emulsion sheet for detecting track of charged elementary particles, in which emulsion at least one silver halide emulsion layer and at least one hydrophilic protective colloid layer are applied on both surfaces of a transparent support, and a compound selected from benzotriazoles is contained in said at least one silver halide emulsion layer. A processing method for processing the above-described silver halide emulsion sheet with a developer comprising a developing agent represented by formula (A): wherein R1 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group. A developer for use in developing the above-described silver halide emulsion sheet, comprising a developing agent represented by the above-mentioned formula (A).
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: July 12, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Ken-ichi Kuwabara
  • Patent number: 6887656
    Abstract: Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer containing a compound that does not react with oxidized developer, has a Log Kow high enough to improve speed, compared to the same layer without the compound, and comprises (1) a thiadiazole, or (2) an oxadiazole, or (3) a 1,2,4 triazole bearing an amido substituent, and does not contain a hydroxyl or thiol group or their tautomeric equivalents on the azole ring.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: May 3, 2005
    Assignee: Eastman Kodak Company
    Inventors: Louis E. Friedrich, Philip A. Allway, Judith A. Bogie, Bernard A. Clark, Charles E. Heckler, Stephen P. Singer
  • Patent number: 6821719
    Abstract: A process for producing a deformed image comprising the steps of: digitally exposing a color photographic silver halide material, said color photographic silver halide material comprising on a deformable plastic support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler; conventionally processing said exposed color photographic material to produce an image; and deforming said color photographic material.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: November 23, 2004
    Assignee: AGFA-Gevaert
    Inventors: Ly Cuong, Markus Geiger, Leon Vermeulen, Arno Schmuck
  • Patent number: 6818390
    Abstract: A deformable color photographic silver halide material, said color photographic silver halide material comprising on a deformable plastic support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler can be deformed without loss in image quality and is suitable for large formats and automatic processing.
    Type: Grant
    Filed: November 14, 2003
    Date of Patent: November 16, 2004
    Assignee: AGFA-Gevaert
    Inventors: Ly Cuong, Markus Geiger, Leon Vermeulen, Arno Schmuck
  • Publication number: 20040146815
    Abstract: This invention relates to a silver halide photographic element comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein at least one of the dye image forming units contains layers of differing sensitivities, and the layer of highest sensitivity contains a development promoting agent or a specific coupler as described herein, or a combination thereof, and a silver halide emulsion comprising tabular silver halide grains having associated therewith at least two dye layers comprising (a) an inner dye layer adjacent to the silver ha
    Type: Application
    Filed: January 17, 2003
    Publication date: July 29, 2004
    Inventors: Sharon G. Johnston, Stephen P. Singer, Drake M. Michno, James A. Friday, David R. Foster
  • Publication number: 20040142288
    Abstract: This invention relates to a silver halide photographic element comprising a support bearing a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, wherein said photographic element has an ISO speed rating of 800 or greater and has an integrated RMS green granularity equal to or less than 11.2.
    Type: Application
    Filed: January 17, 2003
    Publication date: July 22, 2004
    Inventors: James A. Friday, Roger A. Weiss, Anabisdally I. Bodden
  • Patent number: 6764816
    Abstract: The present invention provides a thermally developable photosensitive material including a support, the image-forming layer containing a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent, a binder and a compound represented by the following formula (I), wherein after the material is exposed and thermally developed at 121° C.
    Type: Grant
    Filed: March 22, 2002
    Date of Patent: July 20, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tomoyuki Ohzeki
  • Publication number: 20040131982
    Abstract: A black and white monosheet substantially light-insensitive thermographic recording material comprising a support and a thermosensitive element, the thermosensitive element containing a substantially light-insensitive organic silver salt, an organic reducing agent therefor in thermal working relationship therewith, a binder and at least one toning agent, wherein the at least one toning agent is selected from compounds represented by formula (I): 1
    Type: Application
    Filed: December 18, 2003
    Publication date: July 8, 2004
    Applicant: AGFA-GEVAERT
    Inventors: Ingrid Geuens, Johan Loccufier, Vera Drieghe
  • Publication number: 20040126721
    Abstract: Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.
    Type: Application
    Filed: September 29, 2003
    Publication date: July 1, 2004
    Inventors: Mitsunori Hirano, Kunio Ishigaki, Tokuju Oikawa
  • Publication number: 20040126723
    Abstract: The present invention provides a photothermographic material including a support having disposed thereon an image-forming layer that contains at least a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent and a binder, and further including a compound represented by the following formula (I):
    Type: Application
    Filed: December 16, 2003
    Publication date: July 1, 2004
    Inventors: Katsuyuki Watanabe, Hiroyuki Mifune
  • Publication number: 20040106075
    Abstract: A process for producing a deformed image comprising the steps of: digitally exposing a colour photographic silver halide material, said colour photographic silver halide material comprising on a deformable plastic support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler; conventionally processing said exposed colour photographic material to produce an image; and deforming said colour photographic material.
    Type: Application
    Filed: November 14, 2003
    Publication date: June 3, 2004
    Applicant: Agfa-Gevaert
    Inventors: Ly Cuong, Markus Geiger, Leon Vermeulen, Arno Schmuck
  • Publication number: 20040106076
    Abstract: A deformable colour photographic silver halide material, said colour photographic silver halide material comprising on a deformable plastic support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler can be deformed without loss in image quality and is suitable for large formats and automatic processing.
    Type: Application
    Filed: November 14, 2003
    Publication date: June 3, 2004
    Applicant: Agfa-Gevaert
    Inventors: Ly Cuong, Markus Geiger, Leon Vermeulen, Arno Schmuck
  • Patent number: 6737227
    Abstract: Thermally developable compositions such thermographic and photothermographic emulsions include certain heterocyclic disulfide compounds and ascorbic acid or reductone reducing agents. These compositions can be used in thermally developable materials such as thermographic and photothermographic materials to provide increased image density and shortened development time, and to allow development at lower temperatures. Such materials can have imaging layers on one or both sides of the support.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: May 18, 2004
    Assignee: Eastman Kodak Company
    Inventors: Doreen C. Lynch, Stacy M. Ulrich
  • Patent number: 6733959
    Abstract: Photothermographic materials prepared using aqueous formulations include silver halides that are chemically sensitized using certain tellurium-containing compounds. Such tellurium-containing chemical sensitizing compounds are generally provided in aqueous solution or in an aqueous solid particulate dispersion and can be represented by the following Structure I, II, or III: Te(L)m(X1)n  (II) Pd(X2)2[Te(R′)2]2  (III) wherein X represents the same or different COR, CSR, CNRRa, CR, PRRa, or P(OR)2 groups, R and Ra are independently alkyl, alkenyl, or aryl groups, L is a ligand derived from a neutral Lewis base, X1 and X2 independently represent a halo, OCN, SCN, S2CNRRa, S2COR, S2CSR S2P(OR)2, S2PRRa, SeCN, TeCN, CN, SR, OR, alkyl, aryl, N3, or O2CR group, R′ is an alkyl or aryl group, p is 2 or 4, m is 0, 1, 2, or 4, and n is 2 or 4 provided that when m is 0 or 2, n is 2 or 4, and when m is 1 or 4, n is 2.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: May 11, 2004
    Assignee: Eastman Kodak Company
    Inventors: Henry J. Gysling, David A. Dickinson, Mark Lelental, John W. Boettcher
  • Publication number: 20040086812
    Abstract: A silver halide color photographic lightsensitive material containing at least one compound capable of increasing photographic speed, the compound having at least three heteroatoms in its molecule, and wherein at least one layer of the silver halide emulsion layers comprises an emulsion, the emulsion consisting of a lightsensitive silver halide emulsion wherein 50% or more in number of all the silver halide grains are occupied by tabular grains having (111) faces as main planes, the tabular grains (i) composed of silver iodobromide or silver chloroiodobromide, (ii) having an equivalent circle diameter of 1.0 &mgr;m or more and a thickness of 0.15 &mgr;m or less, and (iii) composed of core portions of 0.1 &mgr;m or less thickness free of growth ring structure and composed of silver iodobromide and shell portions having ten or more dislocation lines.
    Type: Application
    Filed: October 23, 2003
    Publication date: May 6, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Masaaki Miki, Yoshiyasu Inami, Junichiro Hosokawa
  • Patent number: 6709809
    Abstract: A silver salt photothermographic material is disclosed, comprising at least a light sensitive layer and at least a light insensitive layer, the light sensitive layer comprising organic silver salt grains, a light sensitive emulsion containing light sensitive silver halide grains and medium, a reducing agent and a binder, wherein at least one of the light sensitive layer and the light insensitive layer contains a silver-saving agent and the photothermographic material which has been subjected to thermal development at 123° C. for 13.5 sec. exhibits an average contrast of 2.0 to 6.0 within the density range of 0.25 to 2.0 on a characteristic curve of the photothermographic material.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: March 23, 2004
    Assignee: Konica Corporation
    Inventors: Hiroyuki Yanagisawa, Socman Ho Kimura
  • Patent number: 6696234
    Abstract: A silver halide photosensitive material contains a compound of the following general formula (I): wherein A1a represents a group selected from among CR1aR2a, NR1a, an oxygen atom and sulfur atom, A1b represents a group selected from among CR1bR2b, NR1b, an oxygen atom and sulfur atom, and each of R1a, R2a, R1b, R2b and R3 represents a hydrogen atom or a substituent, provided that, in the groups of CR1aR2a and CR1bR2b, R1aR2a and R1bR2b may represent a single divalent substituent, n represents an integer of 1 to 4, provided that, when n is 2 or more, a plurality of A1bs may be the same or different.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: February 24, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Inaba, Masaru Takasaki, Atsushi Matsunaga, Mamoru Sakurazawa, Shinichi Ichikawa
  • Publication number: 20040023174
    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: Application
    Filed: April 1, 2003
    Publication date: February 5, 2004
    Inventors: Tomoyuki Ohzeki, Kohzaburoh Yamada
  • Publication number: 20040013984
    Abstract: Organic solvent-based photothermographic materials comprise one or more mercaptotriazoles represented by the following Structure I as toner(s): 1
    Type: Application
    Filed: July 11, 2002
    Publication date: January 22, 2004
    Applicant: Eastman Kodak Company
    Inventors: Doreen C. Lynch, Stacy M. Ulrich, Chaofeng Zou
  • Publication number: 20040009441
    Abstract: The present invention relates to, a thermally developable photosensitive material containing a non-photosensitive organic silver salt, photosensitive silver halide and a reducing agent on at least one surface of a transparent substrate, wherein a fog density value immediately after thermal developing treatment is 0.20 or less, a value of b0* in the following equation (1) at a fog density portion satisfies −20≦b0* <−4, and a change in an image tone from immediately after thermal developing treatment to after a point when an amount of time has passed as a value of a color difference &Dgr;E as defined in the equation (1) is any one of (a) 1.2 or less at 9 months under an environment of 30° C. and 60% RH, (b) 1.2 or less at 3 months under an environment of 40° C. and 40% RH, or (c) 0.9 or less at 1 week under an environment of 45° C. and 40% RH.
    Type: Application
    Filed: March 28, 2003
    Publication date: January 15, 2004
    Inventors: Makoto Ishihara, Yasuhiro Yoshioka
  • Publication number: 20040002025
    Abstract: Provided are a silver halide photographic emulsion containing a metal complex represented by the following formula (I):
    Type: Application
    Filed: August 27, 2002
    Publication date: January 1, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Tadashi Inaba, Takahiro Matsuno, Tadanobu Sato
  • Publication number: 20040002027
    Abstract: A thermographic recording element having at least one image forming layer contains an organic silver salt, a reducing agent, and optionally, a photosensitive silver halide. The element further contains a substituted alkene derivative of specific structure and preferably a specific hydrazine derivative. The element can be processed in a fully dry basis to produce images having high Dmax and gradation and free of black pepper.
    Type: Application
    Filed: May 30, 2003
    Publication date: January 1, 2004
    Applicant: Fuji Photo Film Co., Ltd.
    Inventors: Kohzaburoh Yamada, Toshiaki Kubo, Hiroyuki Suzuki
  • Publication number: 20030232288
    Abstract: Disclosed are photothermographic materials having, on a support, a layer that contains at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent and a binder, in which the mean silver iodide content of the photosensitive silver halide falls between 5 and 100 mol %, preferably between 40 and 100 mol %.
    Type: Application
    Filed: November 1, 2002
    Publication date: December 18, 2003
    Inventors: Yutaka Oka, Tomoyuki Ohzeki, Katsutoshi Yamane, Seiichi Yamamoto, Sumito Yamada, Hiroyuki Mifune, Tadashi Inaba, Kohzaburoh Yamada, Katsuyuki Watanabe
  • Publication number: 20030232294
    Abstract: The invention relates to a photothermographic material, comprising a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, and a binder on a same surface of a support, wherein the non-photosensitive organic silver salt is the non-photosensitive organic silver salt in a dispersion that has been subjected to an annealing treatment at 30° C. or more.
    Type: Application
    Filed: June 4, 2003
    Publication date: December 18, 2003
    Inventor: Takayoshi Oyamada
  • Publication number: 20030232289
    Abstract: Disclosed is a colour photographic element containing one or more cyan dye-forming couplers, a UV absorber and a specific class of stabiliser, and an imaging process used therewith. The element exhibits improved stability.
    Type: Application
    Filed: October 11, 2002
    Publication date: December 18, 2003
    Applicant: Eastman Kodak Company
    Inventors: Danuta Gibson, Llewellyn J. Leyshon, David Clarke
  • Publication number: 20030228544
    Abstract: A method for forming images on a silver halide color photographic photosensitive material having a substrate and photographic structural layers thereon, including, at least three silver halide color photosensitive layers having different photosensitive regions, respectively, and at least one non-photosensitive hydrophilic colloid layer is disclosed. At least one of the photosensitive layers contains 90 mol % or more of silver chloride. Shortly after the silver halide color photographic photosensitive material has been scan-exposed with laser beams, the material is rapid-processed with a low replenishing amount.
    Type: Application
    Filed: April 14, 2003
    Publication date: December 11, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Naoto Ohshima, Akito Yokozawa, Naoya Shibata
  • Publication number: 20030224307
    Abstract: A photothermographic material including a substrate carrying on one surface thereof an image forming layer containing at least a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for a silver ion, and a binder, wherein the photosensitive silver halide has a silver iodide content of 40 to 100 mol %, and an average particle size of 5 to 80 nm, and the photothermographic material contains a compound of the following general formula (1);
    Type: Application
    Filed: April 14, 2003
    Publication date: December 4, 2003
    Inventors: Seiichi Yamamoto, Eiichi Okutsu, Tomoyuki Ohzeki
  • Publication number: 20030224309
    Abstract: A silver halide photosensitive material comprises at least one light sensitive silver halide emulsion layer on a support. The silver halide photosensitive material contains at least one compound capable of undergoing a one-electron oxidation to thereby form a one-electron oxidation product thereof, the one-electron oxidation product being capable of releasing further one or more electrons, and at least one reducing compound having a C/H value of 3 or less, and another reducing compound having a C/H value of more than 3, the C/H value representing a ratio of (the number of Group IV elements)/(the sum of Groups III, V, VI and VII elements).
    Type: Application
    Filed: March 10, 2003
    Publication date: December 4, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Naoki Asanuma, Kohzaburoh Yamada, Yasuhiro Shimada
  • Publication number: 20030224299
    Abstract: A photothermographic material comprising: a support; and a photosensitive silver halide, a nonphotosensitive organic silver salt, a reducing agent and a binder, wherein the photosensitive silver halide comprises 90% by mole or more of a silver iodide and has a silver iodobromide structure having an average silver iodide content of 35% by mole or less in vicinity of a surface thereof.
    Type: Application
    Filed: April 21, 2003
    Publication date: December 4, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: Fumito Nariyuki