Fogging Or Nucleating Agent Containing Patents (Class 430/598)
  • Patent number: 7741017
    Abstract: The present invention relates to a silver halide color photographic light-sensitive material wherein at least one of light-sensitive silver halide emulsion layers includes a silver halide emulsion having a silver chloride content of at least 95 mol % and a silver iodide content of 0.05 mol % to 0.75 mol % and/or a silver bromide content of 0.05 mol % to 4.00 mol % and further at least one compound represented by the following formula (I): X-(L)n-Y??Formula (I) wherein X represents a group adsorptive to a silver halide, L represents a divalent connecting group comprising one of an atom and an atomic group including at least one of a carbon atom, a nitrogen atom, a sulfur atom and an oxygen atom, Y denotes a reducible group and n denotes an integer of 0 or 1.
    Type: Grant
    Filed: June 3, 2008
    Date of Patent: June 22, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Atsushi Matsunaga, Tadashi Inaba, Shinichi Ichikawa
  • Patent number: 7482113
    Abstract: Incorporating a combination of a trisphenol reducing agent (developer) and a substituted olefinic co-developer having a phosphonium cation in photothermographic materials improves image tone in resulting images.
    Type: Grant
    Filed: December 18, 2006
    Date of Patent: January 27, 2009
    Assignee: Carestream Health, Inc.
    Inventors: Sharon M. Simpson, Kumars Sakizadeh
  • 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: 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: 7303863
    Abstract: A silver halide emulsion, which is chemically sensitized by a compound of formula (1): wherein Ch represents a sulfur, selenium, or tellurium atom; X1 represents NR1 or N+(R2)R3Y?; R1 represents a hydrogen atom or a substituent; R2 and R3 each represent an alkyl group or another substituent; Y? represents an anionic ion; X2 represents OR4, N(R5)R6, or another substituent; R4 to R6 each represent a hydrogen atom or a substituent; and E is a group selected from groups represented by formula (2) to (5): wherein, in formulas (2) to (5), Z represents a hydrogen atom or a substituent; A1 and A2 each represent an oxygen atom, etc.; and R10 to R16 each represent a hydrogen atom or a substituent; W represents a substituent; n is an integer from 0 to 4; L represents a divalent linking group; and EWG represents an electron withdrawing group.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: December 4, 2007
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Suzuki, Toshihiro Kariya
  • 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: 7244550
    Abstract: A silver halide color photographic photosensitive material having, on a support, at least one layer of a blue sensitive emulsion layer unit containing a yellow color forming coupler, a green sensitive emulsion layer unit containing a magenta color forming coupler, and a red sensitive emulsion layer unit containing a cyan color forming coupler, wherein 70% or more of the projection area of the entire silver halide grains has at least one layer of a silver halide photographic emulsion layer containing silver halide grains satisfying the following (a) to (c), and (1) the photosensitive material contains at least one inter-image effect providing layer, or (2) the photosensitive material contains a compound represented by the following Formula (I): (a) the material comprises a tabular silver halide host grain with an aspect ratio of 5 or more having two principal surfaces parallel with each other and a protrusion portion of silver halide epitaxially joined onto the surface of the tabular silver halide host grain,
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: July 17, 2007
    Assignee: Fujifilm Corporation
    Inventors: Hiroshi Fukuzawa, Yutaka Maeno, Kazumi Nii
  • Patent number: 7241561
    Abstract: Bis phenol reducing agents incorporating bicyclic and tricyclic substituents ortho to the hydroxyl groups on the aromatic rings have been found to provide photothermographic materials with improved silver efficiency and stability without significant loss in sensitometric properties.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: July 10, 2007
    Assignee: Carestream Health, Inc.
    Inventors: Doreen C. Lynch, William D. Ramsden, Andrea L. Hansen, Stacy M. Ulrich
  • Patent number: 7229750
    Abstract: A silver halide emulsion chemically sensitized by a compound of formula (1), (6-1), (6-2) or (7); and a silver halide photographic light-sensitive material containing the silver halide emulsion: Formula (1) E1-Ch-E2 Formula (6-1) W1 . . . AuX2m Formula (6-2) [W1 . . . Au . . . W2]X2m Formula (7) E5-Ch-Au . . . (L2)1 wherein Ch is a sulfur, selenium or tellurium atom; E1, E2, and E5 each are, for example, a specific methylene group having a substituent; Au is a monovalent or trivalent gold ion; W1 and W2 each are a specific chalcogen compound; X2 is a monovalent anion; m is 1, 2 or 3; L2 is a compound that can coordinate with gold through a nitrogen, sulfur, selenium, tellurium or phosphorous atom; and l is 0, 1, 2 or 3.
    Type: Grant
    Filed: August 26, 2004
    Date of Patent: June 12, 2007
    Assignee: Fujifilm Corporation
    Inventors: Hiroyuki Suzuki, Masami Sakurada, Toshihiro Kariya
  • Patent number: 7189502
    Abstract: A radiographic material containing tabular silver halide grains also includes an amido compound as an antifoggant precursor that can slowly release an antifoggant over time. These compounds are present in reactive association with the silver halide in tabular silver halide emulsion layers, and are present in an amount of at least 0.5 mmol/mol of silver. The radiographic materials are protected from fog during storage particularly in high temperature environments.
    Type: Grant
    Filed: October 3, 2005
    Date of Patent: March 13, 2007
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, George J. Burgmaier, Steven P. Szatynski, Stephen A. Hershey
  • Patent number: 7144694
    Abstract: A photothermographic imaging material including a support; an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support; and a cyan coloring leuco dye.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: December 5, 2006
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • Patent number: 7129031
    Abstract: A green-sensitized black-and-white silver halide negative working photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer containing tabular silver halide grains, further comprising in said emulsion layer or in a layer adjacent thereto, a heteroatomic sulfinic acid compound, a disulfide compound or a combination thereof, wherein each of said compounds has a solubilizing group having a pKa-value of 10 or less.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: October 31, 2006
    Assignee: Agfa-Gevaert
    Inventors: Johan Loccufier, Dirk Bollen
  • Patent number: 7115359
    Abstract: A photothermographic material having a support provided on at least one side of the support light-sensitive silver halide particles, an organic silver salt and a reducing agent, as well as a leuco dye of a specific structure and a compound of a specific structure.
    Type: Grant
    Filed: July 15, 2004
    Date of Patent: October 3, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Yasushi Usagawa, Takeshi Habu
  • Patent number: 7112398
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: September 26, 2006
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
  • Patent number: 7018790
    Abstract: A photothermographic imaging material including a support; an image forming layer containing an organic silver salt, a photosensitive silver halide, a binder and a silver ion reducing agent, the image forming layer being provided on the support; and a cyan coloring leuco dye.
    Type: Grant
    Filed: December 2, 2003
    Date of Patent: March 28, 2006
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • Patent number: 7005251
    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: November 20, 2003
    Date of Patent: February 28, 2006
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • 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: 6913876
    Abstract: A photothermographic material is disclosed, comprising a support, an organic silver salt, a light-sensitive silver halide, a reducing agent and a contrast-increasing agent, wherein the photothermographic material further comprises a secondary or tertiary amino group-containing alkoxysilane compound and a polyethyleneimine. A light-shielding package of the photothermographic material is also disclosed.
    Type: Grant
    Filed: July 24, 2003
    Date of Patent: July 5, 2005
    Assignee: Konica Corporation
    Inventor: Yasunobu Kobayashi
  • Patent number: 6824962
    Abstract: Disclosed is a photothermographic material containing at least a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on one surface of a support, wherein the material contains a compound producing imagewise a chemical species that can form development initiation points on and in the vicinity of the non-photosensitive silver salt of an organic acid or the like and an organic gold compound and the photosensitive silver halide has a mean grain size of 0.12 &mgr;m or less. This photothermographic material shows high sensitivity, low fog, high Dmax (maximum density), little increase of fog during storage and low temperature and humidity dependency during development.
    Type: Grant
    Filed: January 29, 2002
    Date of Patent: November 30, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tokuju Oikawa
  • Patent number: 6815127
    Abstract: A method of electronic processing of an imagewise exposed dispersed particle photoconductive material imaging element employing pulsed radiation and radio frequency photoconductivity apparatus having a sample capacitor with a gap is described, comprising the steps of: a) placing the imagewise exposed photoconductive material imaging element in an electromagnetic field adjacent the sample capacitor; b) scanning the element through the gap in the sample capacitor with a pulsed, focused beam of radiation; c) directly measuring the photoelectron response of the element and recording the resulting signals from the radio frequency photoconductivity apparatus; and d) advancing the element past the capacitor and repeating steps b) and c); wherein the photoconductive material imaging element comprises photoconductive particles which contain deep electron trapping agents which in an unfilled state effectively decrease the photoconductivity of the photoconductor particles, and wherein imagewise exposure of the photocond
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: November 9, 2004
    Assignee: Eastman Kodak Company
    Inventors: Lillian M. Kellogg, Joe E. Maskasky, Dale E. Hamilton
  • Patent number: 6800431
    Abstract: There is disclosed photothermographic material exhibiting superior photographic performance and having improved latitude for variation in thermal developing conditions, comprising on a support an organic silver salt, light-sensitive silver halide and a reducing agent for silver ions, wherein the reducing agent is represented by the following formula in which R1 through R4, L1, X1, X2 n and m have the meaning stated in the specification.
    Type: Grant
    Filed: April 15, 2003
    Date of Patent: October 5, 2004
    Assignee: Konica Corporation
    Inventors: Norio Miura, Ryohei Iwamoto, Kazuaki Nakamura, Hiroyuki Yasukawa, Kiyoshi Fukusaka
  • Patent number: 6800430
    Abstract: A photothermographic material comprising a photosensitive silver halide, a reducible silver salt, a phenolic reducing agent, a binder and a compound represented by the following formula on the same surface of a support: wherein X1 is a substituent, X2 to X4 are a hydrogen atom or a substituent, and R1 is an alkyl group etc. The photothermographic material shows high sensitivity, high Dmax and low fog and can provide images suitable for use in photomechanical process.
    Type: Grant
    Filed: March 29, 2002
    Date of Patent: October 5, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirokazu Kyota, Toshihide Ezoe, Minoru Sakai, Toyohisa Oya
  • Patent number: 6787299
    Abstract: A silver salt photothermographic imaging material is disclosed, comprising a light-sensitive aliphatic acid silver salt, a light-sensitive emulsion containing light-sensitive halide grains, a reducing agent for silver ions, a binder and a cross-linking agent, wherein the cross-linking agent is an aromatic polyisocyanate compound and the photothermographic material further comprises a compound selected from compounds represented by the following formulas.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: September 7, 2004
    Assignee: Konica Corporation
    Inventors: Hirobumi Yamashita, Toshihisa Takeyama
  • Patent number: 6783925
    Abstract: A thermally processed image forming material containing elsewhere on a support a reducing agent, a binder and non-photosensitive fatty silver salt grains was disclosed, in which (1) the non-photosensitive fatty acid silver salt grains are prepared by mixing and reacting a silver ion-containing solution, the solvent of which being water or a mixture of water and an organic solvent, with a solution of a fatty acid alkali metal salt, the solvent of which being water, an organic solvent, or a mixture of water and an organic solvent, in a closed mixing means, or (2) the non-photosensitive fatty acid silver salt grains are prepared by micro-dispersing the reaction mixture at an operating pressure of 1,800 kg/cm2 or above using a ultrahigh pressure dispersion apparatus. Such thermally processed image forming material is excellent in the coated surface quality, and can afford an image which is low in fog and high in Dmax (maximum density).
    Type: Grant
    Filed: July 14, 2000
    Date of Patent: August 31, 2004
    Assignee: Fuji Photo Film Co., LTD
    Inventor: Shoji Yasuda
  • Patent number: 6780578
    Abstract: The thermally developable photosensitive material of the present invention has a support and including on at least one surface of the support a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent for thermal development, a binder and a compound represented by the following general formula (1): wherein R1 represents a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X represents a chalcogen atom; and Y represents an amino group, an N-alkylamino group, an N,N-dialkylamino group, an anilino group, a hydroxyl group, an alkoxy group, an aryloxy group, an acylamino group or a sulfonamide group, and wherein when Y represents an alkoxy group, an alkylamino group, a dialkylamino group, an acylamino group or a sulfonamide group, Y and R1 may be bonded to each other to form a 5- to 7-membered ring.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: August 24, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasuhiro Yoshioka, Keiichi Suzuki
  • 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
  • Patent number: 6759187
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: July 6, 2004
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
  • Patent number: 6756192
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein: the substituents are as defined in the application.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: June 29, 2004
    Assignee: Eastman Kodak Company
    Inventors: Wojciech K. Slusarek, Xiqiang Yang, Mark E. Irving, David H. Levy, Jared B. Mooberry, James J. Seifert, James H. Reynolds, Lyn M. Irving
  • Patent number: 6753121
    Abstract: A photoconductive material imaging element is described comprising a support and a silver halide emulsion imaging layer comprising silver halide grains which have not been chemically sensitized to optimize formation of latent image Agno, centers upon imagewise exposure and which are doped with at least 500 deep electron trapping agent dopant centers per grain. In accordance with a preferred embodiment, the photoconductive material imaging element includes a planar support and the non-chemically sensitized, deep electron trapping agent doped silver halide grains comprise tabular grains, preferably with an average grain size equivalent circular diameter of greater than 2 &mgr;m, with the long dimensions of the tabular grains primarily oriented parallel to the plane of the support.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: June 22, 2004
    Assignee: Eastman Kodak Company
    Inventors: Lillian M. Kellogg, Joe E. Maskasky, Dale E. Hamilton
  • Publication number: 20040106074
    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 &mgr;m and 0.04 &mgr;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: Application
    Filed: November 20, 2003
    Publication date: June 3, 2004
    Applicant: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • Publication number: 20040101794
    Abstract: A photothermographic imaging material having a support; a photosensitive layer containing photosensitive silver halide particles on one face of the support; and a non-photosensitive layer provided on a side of the support where the photosensitive layer is provided. At least one of the photosensitive layer and the non-photosensitive layer contains an organic silver salt, a reducing agent, a compound represented by the Formula (1) and a compound represented by the Formula (2a).
    Type: Application
    Filed: October 15, 2003
    Publication date: May 27, 2004
    Applicant: Konica Minolta Holdings, Inc.
    Inventors: Yasushi Usagawa, Narito Goto, Takeshi Habu
  • Publication number: 20040096786
    Abstract: A photographic element is described comprising a support bearing one or more hydrophilic colloid layers including at least one photographic silver halide emulsion layer, wherein a photographically useful compound is incorporated into at least one hydrophilic colloid layer in the form of an intercalation composition comprising a layered host material having molecules of the photographically useful compound inserted as guest molecules between the layers of the host material. The invention provide novels materials and a method of incorporating active chemistry compounds such as developers or development inhibitors directly into a photographic imaging element with improved stability and keeping response versus known methods for incorporating active chemistry compounds.
    Type: Application
    Filed: December 21, 2001
    Publication date: May 20, 2004
    Applicant: Eastman Kodak Company
    Inventors: Joseph F. Bringley, Krishnamohan Sharma, Kenneth J. Lushington
  • Patent number: 6689552
    Abstract: A color photographic silver halide material which can be developed to form a negative, at least 95 mol % of the silver halides of which consist of AgCl, and which contains at least one light-sensitive silver halide emulsion layer, the silver halide of which contains at least one compound of formulae (I), (II) and (III): [IrClnF6-n]2−M2+  (I) wherein n denotes 0 or an integer from 1 to 6 and M2+ denotes 1 or 2 cations with a total number of 2 positive charges, [Fe(CN)6]m−Mm+  (II) wherein m denotes 2 or 3 and Mm+ denotes 1 to 3 cations with a total number of m positive charges, wherein o denotes 0, 1 or 2 and R denotes an alkyl, aryl or aralkyl, is distinguished under scanning exposure and on analogue exposure by sharp contrast which is independent of exposure time and by a stable latent image.
    Type: Grant
    Filed: November 5, 2001
    Date of Patent: February 10, 2004
    Assignee: Agfa-Gevaert
    Inventors: Cuong Ly, Edgar Draber, Matthias Feigl, G√ľnter Helling, Thomas Kaluschke, Michael Missfeldt, Maria Nietgen, Heinz-Horst Teitscheid, Ralf Weimann, Heinz Wiesen
  • Publication number: 20040018458
    Abstract: The present invention provides a photothermographic material including a support having disposed on one surface of the support, at least one image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, a development accelerator and a binder, and at least one protective layer on the identical surface, wherein 50% by mass or more of the binder contained in the image forming layer is a water soluble binder, and the reducing agent is contained in the form of a solid dispersion.
    Type: Application
    Filed: May 15, 2003
    Publication date: January 29, 2004
    Inventor: Hajime Nakagawa
  • Publication number: 20040005511
    Abstract: The present invention relates to an ultrahigh contrast photographic material comprising a support bearing a silver halide emulsion layer, containing at least one hydrazide nucleating agent in the emulsion layer and/or a hydrophilic colloid layer, wherein the nucleating agent comprises 2 to 4 hydrazide moieties which are linked directly to one another or to one another by a linking group. The material optionally contains a booster compound in the emulsion layer or hydrophilic colloid layer to enhance the ultrahigh contrast and to promote activity, or a booster compound may be present in the developer solution.
    Type: Application
    Filed: June 19, 2003
    Publication date: January 8, 2004
    Applicant: Eastman Kodak Company
    Inventors: John D. Goddard, Llewellyn J. Leyshon
  • Patent number: 6673508
    Abstract: A planographic printing plate material and a method of preparing a planographic printing plate are disclosed, the planographic printing plate material comprising a support and provided thereon, one or more structural layers containing light sensitive silver halide grains, organic silver salt grains, a reducing agent, a contrast-increasing agent and a physical developing nucleus.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: January 6, 2004
    Assignee: Konica Corporation
    Inventor: Takeshi Sampei
  • Patent number: 6649329
    Abstract: The present application relates to a photothermographic material comprising, on a side of a support, (a) a photosensitive silver halide, (b) a reducible silver salt, (c) a phenol derivative having the specific structure as reducing compound, (d) a binder, (e) a coupler compound, and (f) a compound represented by Q1—NHNH—V6 wherein Q1 is a 5- to 7-membered unsaturated ring and V6 is a carbamoyl group, etc.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: November 18, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toyohisa Oya, Kazunobu Katoh
  • Patent number: 6627375
    Abstract: A silver halide photographic material is disclosed, comprising a support having provided thereon at least a silver halide emulsion layer, which contains at least one compound represented by the following formula (I), and has a characteristic curve of gamma value being 5.0 or more in optical density of from 0.3 to 3.0 on the characteristic curve shown on the orthogonal axis of coordinates having equal unit length expressed by logarithmic exposure amount (x axis) and optical density (y axis): (X)l—(L)m—(A—B)n  (I) wherein X represents a silver halide-adsorptive group having at least one of N, S, P, Se and Te atom, or a light absorptive group; L represents a divalent linking group having at least one of C, N, S and O atom; A represents an electron donative group; B represents a releasing group or a hydrogen atom, which forms radical A. by releasing or deproton after oxidation; l and m each represents an integer of from 0 to 3; and n represents 1 or 2.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: September 30, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Shoji Yasuda
  • Patent number: 6610469
    Abstract: The present invention provides a photothermographic material having an image-forming layer that contains a non-photosensitive silver salt of an organic acid, a photosensitive silver halide, a specific nucleating agent, a compound represented by the formula (1) and a binder on at least one side of a support: wherein P represents an oxygen atom, a sulfur atom or NH, Q represents an oxygen atom or a sulfur atom, Y represents OH, OM (M represents a counter ion) or NH2, L represents a divalent bridging group, and Z represents an alkyl group, an aryl group or a heterocyclic group.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: August 26, 2003
    Assignee: Fuji Photo Film, Co., Ltd.
    Inventor: Makoto Ishihara
  • Publication number: 20030129549
    Abstract: A direct positive silver halide photographic light-sensitive material is used for forming a light-absorbing layer of a lenticular lens sheet that includes a film-form substrate and a plurality of light input lenses provided on a light input side of the substrate, the light absorbing layer (black stripes) being provided on a light output side of the substrate in a region other than a condensing region of each of the light input lenses, the silver halide photographic light-sensitive material including a support, and at least one light-sensitive layer having light-sensitive silver halide grains with a grain size of 1 &mgr;m or less at a silver coat weight of 1.5 g/m2 or more on one side of the support, wherein on the side of the support opposite the light-sensitive layer there is no light absorbing layer, and by developing after exposing, from the side opposite the light-sensitive layer via the light input lenses, the light absorbing layer is formed based on a silver image.
    Type: Application
    Filed: November 14, 2002
    Publication date: July 10, 2003
    Inventors: Junji Miyata, Kenichi Yasuda, Yasufumi Morimoto, Kumpei Oda, Masashi Nishiyama
  • Patent number: 6586170
    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: Grant
    Filed: April 28, 1998
    Date of Patent: July 1, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kohzaburoh Yamada, Toshiaki Kubo, Hiroyuki Suzuki
  • Patent number: 6582896
    Abstract: A photothermographic material includes on a support a non-photosensitive sliver salt, a photosensitive sliver halide, a nucleation agent, and a binder, and a layer containing specific compounds is formed on an outer side of the image forming layer. Thus, there are obtained such images optimal for photomechanical processes as having a high Dmax (maximum density), a low fog, a good coated surface condition, and less surface defects such as repellency, coating lines or the like.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: June 24, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Ito, Yasuo Mukunoki
  • Patent number: 6573021
    Abstract: The invention relates to an ultrahigh contrast photographic material comprising a support bearing a silver halide emulsion layer, containing a combination of two or more hydrazide nucleating agents in the emulsion layer and/or a hydrophilic colloid layer, characterized in that the combination comprises a nucleating agent(s) of formulae (I) and/or (I) with a nucleator of formula (III), in which the nucleating agent of formula (I) comprises (a) two nicotinamide moieties, which may be the same or different, which are linked by a linking group, and (b) a hydrazide moiety linked to only one of those nicotinamide moieties; the nucleating agent of formula (II) comprises a dimeric molecule comprising two monomers linked by a linking group, each monomer of which (a) may be the same or different and (b) comprises a hydrazide moiety and a nicotinamide moiety; and the nucleating agent of formula (III) comprises an aryl sulfonamido aryl hydrazide.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: June 3, 2003
    Assignee: Eastman Kodak Company
    Inventors: Julie Baker, Ian Barford, Philip J. Coldrick, Dawn J. Jenkins, Roger H. Piggin
  • Publication number: 20030096188
    Abstract: A planographic printing plate material and a method of preparing a planographic printing plate are disclosed, the planographic printing plate material comprising a support and provided thereon, one or more structural layers containing light sensitive silver halide grains, organic silver salt grains, a reducing agent, a contrast-increasing agent and a physical developing nucleus.
    Type: Application
    Filed: March 12, 2002
    Publication date: May 22, 2003
    Inventor: Takeshi Sampei
  • Patent number: 6566034
    Abstract: A high contrast photographic material is disclosed containing a new type of hydrazine compound characterized in that said hydrazine compound comprises a redox moiety capable of developing an exposed silver halide crystal. Preferably the photographic material is a graphic arts material for pre-press applications. The developed photographic material shows high gradation, and excellent dot quality and exposure latitude.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: May 20, 2003
    Assignee: AGFA-Gevaert
    Inventors: Johan Loccufier, Stefaan Lingier
  • Patent number: 6558896
    Abstract: A silver salt photothermographic material is disclosed, comprising on a support (a) a light-insensitive organic silver salt, (b) light-sensitive silver halide and (c) a reducing agent capable of reducing a silver ion of the organic silver salt to silver upon heating, wherein when the exposed and thermally processed photothermographic material having a density of 3.0 have been kept at 50° C. and 50% RH for 120 hr., the photothermographic material exhibits a variation of density from 3.0 being within ±0.2.
    Type: Grant
    Filed: October 16, 2001
    Date of Patent: May 6, 2003
    Assignee: Konica Corporation
    Inventor: Hideki Komatsu
  • Patent number: 6548240
    Abstract: Disclosed is a photothermographic material containing a non-photosensitive silver salt, a photosensitive silver halide and a binder on a support, which comprises a nucleating agent and a surfactant represented by the following formula (F): [Rf-(Rc)n]m-Z  Formula (F): wherein Rf represents a perfluoroalkyl group, Rc represents an alkylene group, and Z represents a group having an anionic group, cationic group, betaine group or nonionic group required for imparting surface activity, n is 0 or 1 and m is 1, 2 or 3. According to the present invention, there is provided a photothermographic material, in particular, for photomechanical processes, more specifically, for scanners and image setters, which shows low fog and high Dmax (maximum density), and exhibits little increase of fog even after the photosensitive material after development is stored for a long period of time.
    Type: Grant
    Filed: September 26, 2001
    Date of Patent: April 15, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tetsuo Yamaguchi
  • Publication number: 20030068586
    Abstract: Disclosed is a photothermographic material containing at least a photosensitive silver halide, a non-photosensitive silver salt of an organic acid, a reducing agent for silver ions and a binder on one surface of a support, wherein the material contains a compound producing imagewise a chemical species that can form development initiation points on and in the vicinity of the non-photosensitive silver salt of an organic acid or the like and an organic gold compound and the photosensitive silver halide has a mean grain size of 0.12 &mgr;m or less. This photothermographic material shows high sensitivity, low fog, high Dmax (maximum density), little increase of fog during storage and low temperature and humidity dependency during development.
    Type: Application
    Filed: January 29, 2002
    Publication date: April 10, 2003
    Inventor: Tokuju Oikawa
  • Patent number: 6544725
    Abstract: A lightsensitive silver halide photographic emulsion comprises silver halide grains, a sensitizing dye having a given maximum absorption wavelength and an organic compound exhibiting no absorption in a visible light region. The addition amount of the organic compound is in the range of 1 to 50 mol % based on the sensitizing dye, and a maximum absorption wavelength of the photographic emulsion exhibited by the sensitizing dye in the presence of the organic compound is at least 2 nm shorter than the maximum absorption wavelength exhibited by the sensitizing dye in the absence of the organic compound.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: April 8, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Kiyoshi Morimoto
  • Publication number: 20030064330
    Abstract: A photothermographic material comprising a photosensitive silver halide, a reducible silver salt, a phenolic reducing agent, a binder and a compound represented by the following formula on the same surface of a support: 1
    Type: Application
    Filed: March 29, 2002
    Publication date: April 3, 2003
    Inventors: Hirokazu Kyota, Toshihide Ezoe, Minoru Sakai, Toyohisa Oya