Noble Metal Or Compound Thereof Patents (Class 430/605)
  • Patent number: 7732124
    Abstract: A color-image forming method in a silver halide color photographic light-sensitive material, having the steps of: performing exposure of the light-sensitive material cut into sheets; and subjecting the exposed light-sensitive material sheets to photographic processing, while conveying them with conveying rollers, with the sheet conveying speed being 40.0 to 100 mm/sec; wherein the light-sensitive material to be exposed contains any of: 1) a dye-forming coupler of formula (IA), 2) a compound of formula (I), and 3) 1.4 mg/m2 or more of a compound of formula (II); wherein R? and R? are a substituent; Z is a hydrogen atom, or a coupling split-off group; A is an alkyl group, M is a cation, and R is an atom or group having 100 or lower total molecular weight.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: June 8, 2010
    Assignee: Fujifilm Corporation
    Inventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
  • Patent number: 7682780
    Abstract: An industrial X-ray photosensitive material including at least one silver halide emulsion layer on both sides of a transparent support, wherein the silver halide emulsion layer contains tabular silver halide particles having an average particle thickness of less than 0.2 ?m and an aspect ratio of more than 8, a core of the particles which is a core having a volume of 1% or more and less than 3% of a particle volume does not contain Ir or Rh, and a shell of the particles which is a shell having a volume of 97% or more and less than 99% of a particle volume contains at least Ir or Rh. An industrial X-ray photosensitive material having rapid processing suitability, as well as high sensitivity and high contrast is provided.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: March 23, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Masayoshi Fujita, Yoshihisa Hashi
  • Patent number: 7674575
    Abstract: A silver halide color photosensitive material for being subjected to a color development within nine seconds of being imagewise exposed, and comprising a support and a photograph constitution layer provided on the support, the photograph constitution layer containing at least one layer that comprises a yellow dye-forming coupler, at least one layer that comprises a magenta dye-forming coupler, at least one layer that comprises a cyan dye-forming coupler, and at least one non-photosensitive hydrophilic colloid layer. The coupler-comprising layers respectively include silver halide emulsions, and at least one of the silver halide emulsions has the characteristics of: (i) a silver chloride content of 90 mol % or more; and (ii) containing at least one specific metal complexes. The color development is preferably completed within 28 seconds.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: March 9, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Naoto Oshima, Tadanobu Sato, Akito Yokozawa
  • Patent number: 7527923
    Abstract: A silver halide color photographic light-sensitive material, having photographic constituting layers including, on a support, at least one blue-sensitive layer containing a silver halide emulsion, at least one green-sensitive layer containing a silver halide emulsion, at least one red-sensitive layer containing a silver halide emulsion, and at least one hydrophilic colloidal layer, in which a silver chloride content is 95 mol % or more and a silver iodide content is from 0.05 to 0.3 mol % in the silver halide emulsion of the red-sensitive layer, and in which the difference between spectral sensitivities at wavelength of 685 nm and 590 nm is from 1.2 to 2.5 log E or the difference between spectral sensitivities at wavelength of 660 nm and 590 nm is 0.8 to 2.0 log E, for a distribution of the spectral sensitivities when the material is exposed to lights equal in energy at each wavelength.
    Type: Grant
    Filed: September 29, 2005
    Date of Patent: May 5, 2009
    Assignee: FUJIFILM Corporation
    Inventor: Shinji Ikari
  • Patent number: 7465534
    Abstract: A silver halide emulsion containing silver halide grains with a silver chloride content of at least 95 mole %, being sensitized with selenium and gold, and further containing at least two compounds each having a function of oxidizing metallic silver clusters; a silver halide photographic material containing the same; and a silver halide photographic material having red-, green, and blue-sensitive silver halide emulsion layers, wherein one of the emulsion layers contains a silver halide emulsion with a silver chloride content of at least 95 mole %, and the silver halide emulsion contains a selenium compound and a metal complex of formula (D1); [MD1XD1nLD1(6-n)]m??formula (D1) wherein MD1 represents Cr, Mo, Re, Fe, Ru, Os, Co, Rh, Pd, or Pt; XD1 represents a halogen ion; LD1 represents a ligand other than XD1; n represents 3, 4, 5, or 6; and m represents 4-, 3-, 2-, 1-, 0 or 1+.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: December 16, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Katsuhisa Ohzeki, Hiroyuki Suzuki, Toshihiro Kariya
  • Patent number: 7396640
    Abstract: A silver halide color photographic light-sensitive material, which is for use in movie projection, and which has: on a transparent support, at least three light-sensitive silver halide emulsion layers which are different from each other in color developability and color sensitivity; and at least one non-light-sensitive hydrophilic colloid layer, wherein the light-sensitive silver halide emulsion layer nearest to the support includes silver halide emulsion grains having a silver chloride content of 95 mol % or more, wherein the silver halide color photographic light-sensitive material further contains at least one non-light-sensitive hydrophilic colloid layer containing black colloidal silver between the support and the light-sensitive silver halide emulsion layer nearest to the support, and wherein an amount of Fe in the silver halide color photographic light-sensitive material is 6×10?5 mol/m2 or less.
    Type: Grant
    Filed: March 27, 2007
    Date of Patent: July 8, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Hidekazu Sakai
  • Patent number: 7393626
    Abstract: The invention provides a photothermographic material including, on a same surface of a substrate, photosensitive silver halide grains, a non-photosensitive organic silver salt, a reducing agent and a binder, in which the photosensitive silver halide grains include iridium and a metal of groups 3 to 10 of the periodic table other than iridium, and 90% or more of the total iridium amount within the grain are contained in a core of 50% or less of the grain.
    Type: Grant
    Filed: July 8, 2003
    Date of Patent: July 1, 2008
    Assignee: FUJIFILM Corporation
    Inventor: Seiichi Yamamoto
  • Patent number: 7351523
    Abstract: The use of a red-sensitising trinuclear merocyanine dye and an osmium dopant according to formula (I): [Os(NZ)L5]r wherein Z is sulphur or oxygen, L is a ligand and r is 0, ?1, ?2 or ?3, in photographic silver halide emulsions for use in photographic materials, result in a reduction and/or prevention of speed gain in the emulsion over time without significant speed loss.
    Type: Grant
    Filed: November 14, 2004
    Date of Patent: April 1, 2008
    Assignee: Eastman Kodak Company
    Inventors: Nicholas E. Grzeskowiak, Colin J. Gray
  • Patent number: 7332265
    Abstract: A silver halide color photographic light-sensitive material, having at least one yellow dye image-forming layer, at least one magenta dye image-forming layer, and at least one cyan dye image-forming layer, each provided on a transparent support, which shows 3.0 or more maximum transmission densities for the respective layers upon area exposure with an exposure time of 10?4 sec, and shows a transmission density in a range of 0.95 to 1.05 when color development is started in 30 minutes after exposure with an exposure amount that gives a density of 1.0, when the light-sensitive material is subjected to color development started in 5 minutes after exposure; and an image-forming-method using the same.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: February 19, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Jun Matsumoto, Shinichi Nakahira, Hidekazu Sakai
  • Patent number: 7262002
    Abstract: A silver halide emulsion containing silver halide grains with a silver chloride content of at least 95 mole %, being sensitized with selenium and gold, and further containing at least two compounds each having a function of oxidizing metallic silver clusters; a silver halide photographic material containing the same; and a silver halide photographic material having red-, green, and blue-sensitive silver halide emulsion layers, wherein one of the emulsion layers contains a silver halide emulsion with a silver chloride content of at least 95 mole %, and the silver halide emulsion contains a selenium compound and a metal complex of formula (D1); [MD1XD1nLD1(6-n)]m ??formula (D1) wherein MD1 represents Cr, Mo, Re, Fe, Ru, Os, Co, Rh, Pd, or Pt; XD1 represents a halogen ion; LD1 represents a ligand other than XD1; n represents 3, 4, 5, or 6; and m represents 4?, 3?, 2?, 1?, 0, or 1+.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: August 28, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Katsuhisa Ohzeki, Hiroyuki Suzuki, Toshihiro Kariya
  • Patent number: 7258969
    Abstract: A silver halide emulsion which exhibits high sensitivity, high contrast, little sensitivity variation with humidity conditions at the time of exposure, and excellent reciprocity law properties at high illumination intensities. Also, a method of preparing the emulsion in a stable manner, and a silver halide color photographic photosensitive material and an image forming method that use the emulsion. The emulsion includes a mesoionic compound having a thiolate structure or a protonated thiolate structure, and the emulsion is sensitized by an Au (III) compound. The emulsion preferably contains an oxidatively dimerized form of a mesoionic compound having a thiolate structure, and a silver chloride content of at least 90 mol %.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: August 21, 2007
    Assignee: Fujifilm Corporation
    Inventors: Hirotomo Sasaki, Hideki Maeta, Naoto Ohshima
  • Patent number: 7241564
    Abstract: A silver halide-holographic sensitive material is provided and has a support and at least one photosensitive emulsion layer, with the photosensitive emulsion layer containing silver halide particles whose number average projected-area diameter is from 10 nm to 80 nm.
    Type: Grant
    Filed: August 2, 2005
    Date of Patent: July 10, 2007
    Assignee: FUJIFILM Corporation
    Inventor: Mikio Ihama
  • Patent number: 7238468
    Abstract: To provide a silver halide color photographic light-sensitive material having higher sensitivity and higher contrast and free of reciprocity failure over a wide range of exposure illuminance, A silver halide emulsion comprising a silver halide grain containing at least two metal complexes each giving an average electron releasing time of 10?5 to 3 seconds, the ratio in the average electron releasing time between these two metal complexes being at least 3 times or more and in these metal complexes, the content of the metal complex having a shorter average electron releasing time being 3 times or more as the molar ratio to the content of the metal complex having a longer average electron releasing time.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: July 3, 2007
    Assignee: Fujifilm Corporation
    Inventors: Naoto Ohshima, Tadanobu Sato, Tadashi Inaba
  • Patent number: 7235352
    Abstract: The present invention provides a photothermographic material including a support having disposed on one surface thereof at least one image-forming layer containing a binder, an organic silver salt, a reducing agent for reducing silver ions, an organic polyhalogen compound and a photosensitive silver halide, wherein the photosensitive silver halide has a silver iodide content ranging from 10 mol % to 100 mol %. The silver halide further contains at least one metal selected from a first metal group and one metal selected from a second metal group, with a proviso that none of the at least one metal selected from the first metal group and the at least one metal selected from the second metal group are the same.
    Type: Grant
    Filed: June 25, 2003
    Date of Patent: June 26, 2007
    Assignee: Fujifilm Corporation
    Inventors: Yutaka Oka, Seiichi Yamamoto
  • Patent number: 7229749
    Abstract: A silver halide photographic emulsion, wherein 70% or more of the total projected area of silver halide grains is occupied by silver halide grains satisfying the following requirements (a) to (d). (a) It is composed of a tabular silver halide host grain with an aspect ratio of 12 or more having two mutually parallel principal planes and a silver halide protrusion portion bonded by epitaxial junction on the surface of the host grain. (b) The silver bromide content rates of the host grain and the protrusion portion both are 70 mol % or more. (c) When the average silver iodide content rate of all grains is I mol %, the average silver iodide content rate of the region of 8%, based on the silver amount of the host grain, of the outer shell of the host grain is (I+12) mol % or less.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: June 12, 2007
    Assignee: Fujifilm Corporation
    Inventor: Yasushi Miyamoto
  • Patent number: 7226727
    Abstract: A silver halide color photographic light-sensitive material having, on a support, a yellow dye-forming light-sensitive silver halide emulsion layer, a magenta dye-forming light-sensitive silver halide emulsion layer and a cyan dye-forming light-sensitive silver halide emulsion layer, and a light-insensitive hydrophilic colloid layer that does not develop a color, wherein a total amount of a hydrophilic binder on the emulsion layer-coating side of the support is 6.0 g/m2 or less, and at least one of said silver halide emulsion layers contains at least one compound selected from metal complexes represented by formula (I) set forth below and a silver halide emulsion of a 90 mole % or more silver chloride content with a silver bromide-containing phase formed in a layer form.
    Type: Grant
    Filed: November 1, 2005
    Date of Patent: June 5, 2007
    Assignee: FUJIFILM Corporation
    Inventors: Naoto Ohshima, Shigeru Shibayama, Naoya Shibata
  • Patent number: 7220537
    Abstract: This invention provides a silver halide emulsion, a silver halide photographic material and an image forming method, which is excellent in high sensitivity, good gradation, coating composition store stability and latent image store stability regardless exposing method, particularly excellent latent image store stability at high intensity and shot period exposure of digital exposure, and by which a high quality print is obtained. The silver halide emulsion contains silver halide grains having silver chloride content of at least 90 mol %, silver iodide content of 0-2.0 mol %, and silver bromide content of 0.02-5.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: May 22, 2007
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Toshiya Kondo, Shuji Murakami, Koichiro Kuroda
  • Patent number: 7189501
    Abstract: A silver halide color photographic photosensitive material that has, on a support, at least one yellow color-forming photosensitive silver halide emulsion layer, at least one magenta color-forming photosensitive silver halide emulsion layer, and at least one cyan color-forming photosensitive silver halide emulsion layer, wherein at least one specific yellow or magenta dye-forming coupler and at least one compound represented by formula (Ph) are contained in the same layer: wherein Rb1 represents a specific functional group; and Rb2 to Rb5 each independently represent a hydrogen or halogen atom, or a specific functional group.
    Type: Grant
    Filed: December 29, 2003
    Date of Patent: March 13, 2007
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiyuki Makuta, Hiroyuki Yoneyama, Nobuo Seto, Kiyoshi Takeuchi
  • Patent number: 7163784
    Abstract: A silver halide emulsion including silver halide grains and a binder and satisfying Requirement (1) of 0<B/A<0.2, wherein A (mol %) is an iridium content at a surface of the silver halide grains, and B (mol %) is an average iridium content at a subsurface of the silver halide grains.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: January 16, 2007
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventor: Toshiya Kondo
  • Patent number: 7157216
    Abstract: A silver halide emulsion is disclosed, comprising silver halide grains, wherein at least 50% by number of the silver halide grains is accounted for by cubic grains having a chloride content of not less than 90 mol %, an iodide content of from 0 to 2 mol % and a bromide content of from 0.1 to 10 mol % and containing dislocation lines in the edge region or the corner region of the grains.
    Type: Grant
    Filed: March 18, 2005
    Date of Patent: January 2, 2007
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Toshiya Kondo, Katsuya Yabuuchi, Rieko Ren
  • Patent number: 7157219
    Abstract: Photothermographic materials are designed with increased photospeed by chemical sensitizing the photosensitive silver halide grains with a combination of compounds. A first chemical sensitizer is a specific gold(III)-containing compound and a second chemical sensitizer is a sulfur-containing compound that is a diphenylphosphine sulfide. The molar ratio of the gold(III)-containing compound to the sulfur-containing compound is at least 1:1.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: January 2, 2007
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Simpson, Lilia P. Burleva, Kumars Sakizadeh
  • Patent number: 7153643
    Abstract: The present invention provides a silver halide color photographic photosensitive material including a substrate, and photographic constituent layers having at least one each of an yellow color-developing blue light-sensitive silver halide emulsion layer, a magenta color-developing green light-sensitive silver halide emulsion layer, a cyan color-developing red light-sensitive silver halide emulsion layer and a non-photosensitive hydrophilic colloid layer, wherein the at least one yellow color-developing blue light-sensitive silver halide emulsion layer includes a silver halide emulsion having a sphere-corresponding diameter of 0.7 ?m or less, and a silver chloride content of 90 mol % or higher, which silver halide emulsion has been subjected to selenium and gold sensitizations, and the total gelatin amount in the photographic constituent layers is from 3 to 6 g/m2, or the total silver coating amount in the photographic constituent layers is from 0.2 to 0.5 g/m2, and an image-forming method using the same.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: December 26, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Naoto Ohshima
  • Patent number: 7153647
    Abstract: A black and white thermographic recording material comprising a thermosensitive element and a support, the thermosensitive element containing at least one substantially light-insensitive organic silver salt, a binder and optionally photosensitive silver halide, characterized in that the thermosensitive element further contains deliberately added metal nano-particles in a molar ratio with respect to the total molar concentration of the at least one substantially light-insensitive organic silver salt in the range of 0.05:1 to 10?6:1; and the use for the purpose of increasing the ratio of Dmax to the quantity of said substantially light-insensitive organic silver salts per unit area of the above-mentioned thermographic recording material.
    Type: Grant
    Filed: May 18, 2004
    Date of Patent: December 26, 2006
    Assignee: Agfa Gevaert
    Inventors: Ingrid Geuens, Luc Verberckt, Ivan Hoogmartens, Frank DeVoeght, Iris Vanwelkenhuysen
  • Patent number: 7105287
    Abstract: A silver halide emulsion is disclose, containing silver halide grains, in which at least 50% by number of the silver halide grains is accounted for by (1) cubic grains (2) having a chloride content of not less than 90 mol %, (3) an iodide content of from 0 to 2 mol % and (4) a bromide content of from 0.1 to 10 mol %, and (5) containing dislocation lines in the peripheral region and (6) having rounded corners.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: September 12, 2006
    Assignee: Konica Minolta Photo Imaging, Inc.
    Inventors: Toshiya Kondo, Katsuya Yabuuchi, Rieko Ren
  • Patent number: 7087367
    Abstract: A photothermographic material is disclosed, comprising on a support a light-sensitive layer comprising a light-insensitive silver salt of an aliphatic carboxylic acid, light-sensitive silver halide grains, a reducing agent for silver ions and a binder, wherein the light-sensitive layer further comprises nonaqueous dispersion particles insoluble in organic solvents.
    Type: Grant
    Filed: January 20, 2005
    Date of Patent: August 8, 2006
    Assignee: Konica Minolta Medical & Graphic, INC
    Inventors: Takayuki Sasaki, Akihisa Nakajima, Kiyokazu Morita
  • Patent number: 7083907
    Abstract: A silver halide emulsion which exhibits high sensitivity, high contrast, little sensitivity variation with humidity conditions at the time of exposure, and excellent reciprocity law properties at high illumination intensities. Also, a method of preparing the emulsion in a stable manner, and a silver halide color photographic photosensitive material and an image forming method that use the emulsion. The emulsion includes a mesoionic compound having a thiolate structure or a protonated thiolate structure, and the emulsion is sensitized by an Au (III) compound. The emulsion preferably contains an oxidatively dimerized form of a mesoionic compound having a thiolate structure, and a silver chloride content of at least 90 mol %.
    Type: Grant
    Filed: December 18, 2003
    Date of Patent: August 1, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirotomo Sasaki, Hideki Maeta, Naoto Ohshima
  • Patent number: 7083905
    Abstract: A silver halide color photographic light-sensitive material having, on a support, a yellow dye-forming light-sensitive silver halide emulsion layer, a magenta dye-forming light-sensitive silver halide emulsion layer and a cyan dye-forming light-sensitive silver halide emulsion layer, and a light-insensitive hydrophilic colloid layer that does not develop a color, wherein a total amount of a hydrophilic binder on the emulsion layer-coating side of the support is 6.0 g/m2 or less, and at least one of said silver halide emulsion layers contains at least one compound selected from metal complexes represented by formula (I) set forth below and a silver halide emulsion of a 90 mole % or more silver chloride content with a silver bromide-containing phase formed in a layer form.
    Type: Grant
    Filed: June 30, 2003
    Date of Patent: August 1, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoto Ohshima, Shigeru Shibayama, Naoya Shibata
  • Patent number: 7022469
    Abstract: A silver halide emulsion is disclosed, comprising at least one monovalent Au(I) complex coordinated with a compound represented by the following formula (1): R1—Ch—R2??(1) wherein R1 and R2 each independently represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, R1 and R2 may combine with each other to form a 3-, 4-, 5-, 6- or 7-membered ring, and Ch represents a sulfur atom, a selenium atom or a tellurium atom.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: April 4, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Suzuki, Hirotomo Sasaki
  • Patent number: 6969582
    Abstract: A silver halide emulsion comprising radiation sensitive silver halide grains exhibiting a face centered cubic crystal lattice structure containing a hexacoordination complex of an iridium ion in which at least half of the coordination sites in the hexacoordination complex are provided by halogen or pseudohalogen ligands, and at least one coordination site is provided by a ligand comprising a azole ring containing a chalcogen atom and a nitrogen atom, wherein the azole ring is substituted at the 5-position with a halide ion. The invention provides emulsions containing with a preferred class of iridium dopants which are especially useful for improving reciprocity performance in silver halide emulsions with minimal or no impact on other aspects of photographic performance. These dopants give a superior balance of reciprocity and other photographic properties compared to other iridium dopants exemplified in the prior art.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: November 29, 2005
    Assignee: Eastman Kodak Company
    Inventors: Myra T. Olm, Woodrow G. McDugle, Jr., Jeffrey C. Hansen, Thomas D. Pawlik, John D. Lewis, Jerzy Z. Mydlarz, Robert D. Wilson, Eric L. Bell
  • Patent number: 6962773
    Abstract: A black and white thermographic recording material comprising a thermosensitive element and a support, the thermosensitive element containing at least one substantially light-insensitive organic silver salt, a binder and optionally photosensitive silver halide, characterized in that the thermosensitive element further contains deliberately added metal nano-particles in a molar ratio with respect to the total molar concentration of the at least one substantially light-insensitive organic silver salt in the range of 0.05:1 to 10?6:1; and the use for the purpose of increasing the ratio of Dmax to the quantity of said substantially light-insensitive organic silver salts per unit area of the above-mentioned thermographic recording material.
    Type: Grant
    Filed: November 27, 2002
    Date of Patent: November 8, 2005
    Assignee: Agfa Gevaert
    Inventors: Ingrid Geuens, Luc Verberckt, Ivan Hoogmartens, Frank De Voeght, Iris Vanwelkenhuysen
  • Patent number: 6949333
    Abstract: The present invention provides a photosensitive silver halide photographic emulsion comprising a silver iodide content of 41 mol % or more and 100 mol % or less and including a silver halide to which reduction sensitization is applied in the course of particle formation, and silver halide photographic emulsion comprising 41 mol % to 100 mol % of silver iodide and subjected to at least one of chalcogen sensitization and gold sensitization to the insides of particles.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: September 27, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroyuki Mifune
  • Patent number: 6911303
    Abstract: A light-sensitive silver halide grain having an absorption band in a wavelength region of visible light is prepared to provide a silver halide photographic material having high spectral sensitivity in the visible region. The silver halide photographic material contains the light-sensitive silver halide grain having a metal complex dopant having an absorption band which has a molar absorption coefficient of 10,000 or more in a wavelength region of visible light in an ultraviolet-visible absorption spectrum of a solution thereof.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: June 28, 2005
    Assignee: Fuji Photo Film, Co., Ltd.
    Inventors: Tadanobu Sato, Tadashi Inaba
  • Patent number: 6902879
    Abstract: Provided are a silver halide photographic emulsion containing a metal complex represented by the following formula (I): Mm[IrCln(L1)k(L2)6-n-k]??(I) wherein, M represents a cation or anion, m represents an integer of 0 to 4, n represents an integer of 3 to 5, k represents an integer of 0 to 3, L1 represents a ligand selected from the group consisting of pyrroles, thiophenes, pyrazoles, isoxazoles, isothiazoles, imidazole, oxazoles, furazanes, heterocycles having at least 3 hetero atoms and ureas, L2 represents an inorganic ligand other than Cl with the proviso that when k represents 0, L2 represents none of F, Br, I, NO, H2O, CO and C2O4; and a metal complex represented by the following formula (IV): Nk?[IrX6-n?Qn?]??(IV) wherein, N represents a counter cation; X represents a halogen ion; Q represents a compound which contains at least three atoms selected from nitrogen and sulfur atoms, and 5 or less carbon atoms, may contain another atom, and exhibits a ratio of (the number of carbon atoms)/(the total n
    Type: Grant
    Filed: August 27, 2002
    Date of Patent: June 7, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Inaba, Takahiro Matsuno, Tadanobu Sato
  • Patent number: 6902878
    Abstract: A silver halide photographic emulsion is disclosed, comprising silver chloroiodide grains or silver chloroiodobromide grains, having 90 mol % or more of a silver chloride content, wherein the silver chloroiodide grains or silver chloroiodobromide grains have a layer having a silver iodide content of decreasing in the depth direction from the grain surface.
    Type: Grant
    Filed: December 9, 2003
    Date of Patent: June 7, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Satoshi Aiba, Osamu Yonekura
  • Patent number: 6890707
    Abstract: A print material having a support, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler and at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, characterised in that the silver halide crystals of the red-sensitive layer have a chloride content of at least 95 mol %, contain 20 to 500 nmol of iridium per mol of silver halide and the cyan coupler is of the formula in which R1 means a hydrogen atom or an alkyl group, R2 means an alkyl, aryl or hetaryl group, R3 means an alkyl or aryl group, R4 means an alkyl, alkenyl, alkoxy, aryloxy, acyloxy, acylamino, sulfonyloxy, sulfamoylamino, sulfonamido, ureido, hydroxycarbonyl, hydroxycarbonylamino, carbamoyl, alkylthio, arylthio, alkylamino or arylamino group or a hydrogen atom and Z means a hydrogen atom or a group eliminable under the conditions of chromogenic development, is dis
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: May 10, 2005
    Assignee: Agfa-Gevaert
    Inventors: Ralf Weimann, Markus Geiger, Cuong Ly, Klaus Sinzger, Beate Weber, Heinz Wiesen
  • Patent number: 6887657
    Abstract: A silver halide color photographic photosensitive material, which containes at least one specific compound containing at least one alkenylcarbonyl group, in at least one layer on a support; and an image-forming method using the same.
    Type: Grant
    Filed: May 11, 2004
    Date of Patent: May 3, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobuo Seto, Toshiyuki Makuta, Hidekazu Sakai, Hiroyuki Yoneyama, Tomonori Ichinose
  • Patent number: 6864045
    Abstract: A radiographic silver halide film comprises a cubic grain silver halide emulsion layer on one side of the support and a tabular grain silver halide emulsion layer on the other side. The cubic grain silver halide emulsion layer comprises a combination of first and second spectral sensitizing dyes that provides a combined maximum J-aggregate absorption on the cubic silver halide grains of from about 540 to about 560 nm. The first spectral sensitizing dye is an anionic benzimidazole-benzoxazole carbocyanine, the second spectral sensitizing dye is an anionic oxycarbocyanine. The cubic grain silver halide emulsion layer also includes a mixture of gelatin or a gelatin derivative and a second hydrophilic binder other than gelatin or a gelatin derivative at a weight ratio of first to second hydrophilic binder of from about 2:1 to about 5:1. The cubic silver halide grains comprise from about 1 to about 20 mol % chloride and from about 0.25 to about 1.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: March 8, 2005
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, William E. Moore, David J. Steklenski
  • Patent number: 6852481
    Abstract: A silver halide emulsion is disclosed, comprising at least one monovalent Au(I) complex coordinated with a compound represented by the following formula (1): R1-Ch-2??(1) wherein R1 and R2 each independently represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, R1 and R2 may combine with each other to form a 3-, 4-, 5-, 6- or 7-membered ring, and Ch represents a sulfur atom, a selenium atom or a tellurium atom.
    Type: Grant
    Filed: August 7, 2003
    Date of Patent: February 8, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroyuki Suzuki, Hirotomo Sasaki
  • Patent number: 6852478
    Abstract: A silver halide color photographic light-sensitive material with a magenta emulsion layer containing a pyrazolotriazole magenta dye-forming coupler and containing an emulsion whose silver chloride content is 98 mol % or more, with a light-insensitive hydrophilic colloidal layer containing a solid fine-particle dispersion of a dye. The magenta emulsion layer is a light-sensitive silver halide emulsion layer most apart from the light-insensitive hydrophilic colloidal layer among all the light-sensitive silver halide emulsion layers. A silver halide color photographic light-sensitive material for cinema, in which light-sensitive silver halide particles have a silver chloride content of 95 mol % or more, a total coated amount of silver is 1.7 g/m2 or less, a thickness of the film on the support on the side of layers containing the light-sensitive silver halide is 12.0 ?m or less, and the swelling rate to water is 200% or less.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: February 8, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidekazu Sakai, Tatsuya Ishizaka, Katsuyuki Takada
  • Patent number: 6828088
    Abstract: Disclosed is a silver halide photographic light-sensitive material comprising at least one silver halide emulsion layer on a support, wherein 40 mol % or more of silver halide contained in the silver halide emulsion layer is silver bromide and the silver halide contains 1×10−6 mole or more per mole of silver of a metal complex containing one or more cyanide ligands, and the silver halide photographic light-sensitive material has a characteristic curve drawn in orthogonal coordinates of logarithm of light exposure (x-axis) and optical density (y-axis) using equal unit lengths for the both axes, on which gamma is 4.0 or more for the optical density range of 0.1-1.5. There is provided a silver halide photographic light-sensitive material showing high contrast and high sensitivity.
    Type: Grant
    Filed: November 26, 2002
    Date of Patent: December 7, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tokuju Oikawa
  • Patent number: 6828089
    Abstract: This invention relates to a silver halide photographic emulsion in which a silver emulsion high in silver iodide content of 80% by mol to 100% by mol based on the silver iodide content is chemically sensitized by at least one of methods of chalcogen sensitization and gold sensitization under the conditions that pAg is from 1.5 to 7.0, as well as a thermally developable photosensitive material having at least one image forming layer containing at least a non-photosensitive organic silver salt, a photosensitive silver halide, a reducing agent and a binder on a support, and having at least one non-image recording protection layer to the image forming layer on the side remote from the support, and exposed by a laser beam in which the material contains the silver emulsion high in silver iodide content.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: December 7, 2004
    Assignee: Fuji Photo Film Co., LTD
    Inventor: Hiroyuki Mifune
  • Patent number: 6828077
    Abstract: A method of mammography imaging includes exposing a patient to a peak voltage greater than 29 kVp. The film used in this method comprises a cubic grain silver halide emulsion layer on one side of the support and a tabular grain silver halide emulsion layer on the other side. The cubic grain silver halide emulsion layer comprises a combination of first and second spectral sensitizing dyes that provides a combined maximum J-aggregate absorption on the cubic silver halide grains of from about 540 to about 560 nm. The first spectral sensitizing dye is an anionic benzimidazole-benzoxazole carbocyanine, the second spectral sensitizing dye is an anionic oxycarbocyanine. The cubic grain silver halide emulsion layer also includes a mixture of gelatin or a gelatin derivative and a second hydrophilic binder other than gelatin or a gelatin derivative. The cubic silver halide grains comprise from about 1 to about 20 mol % chloride and from about 0.25 to about 1.
    Type: Grant
    Filed: November 19, 2002
    Date of Patent: December 7, 2004
    Assignee: Eastman Kodak Company
    Inventors: Robert E. Dickerson, William E. Moore, David J. Steklenski
  • Patent number: 6818374
    Abstract: Disclosed are a silver halide photographic light-sensitive material comprising silver halide containing a metal complex having a cyanide ligand in a silver halide emulsion layer and comprising a hydrazine compound having an onium group in the molecule, and a method of developing the silver halide photographic light-sensitive material with a developer having a pH of 9.0-11.0. The silver halide photographic light-sensitive material of the present invention can provide high sensitivity, high processing stability and high contrast images.
    Type: Grant
    Filed: March 21, 2003
    Date of Patent: November 16, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tokuju Oikawa, Tadashi Ito, Katsuyuki Watanabe, Mitsunori Hirano, Yasutomo Kawanishi
  • 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: 6815152
    Abstract: A silver halide color photographic photosensitive material comprising: a transmitting support; at least three types of photosensitive hydrophilic colloid layers disposed on the support, each type including at least one of a yellow, a magenta and a cyan color forming coupler; silver halide emulsion particles, which have a color sensitivity different from the other types, wherein at least one of the color sensitivities comprises green-sensitivity; and an Fe content of no more than 2×10−5 moles/m2; each silver halide emulsion particle including a halogen composition, which comprises at least one of silver chlorobromide, silver chloroiodide, silver chloroiodide bromide and silver chloride having a silver chloride content ratio of 95% by mole or more, an average sphere-equivalent particle diameter of the green-sensitive silver halogen emulsion particles comprising no more than 0.25 &mgr;m and at least one type of the green-sensitive silver halogen emulsion particles being doped with Ir.
    Type: Grant
    Filed: September 26, 2002
    Date of Patent: November 9, 2004
    Assignee: Fuji Photo Film. Co., Ltd.
    Inventors: Kiyohito Takada, Hidekazu Sakai, Terukazu Yanagi
  • Patent number: 6808870
    Abstract: A light-sensitive silver halide grain containing at least one metal complex, wherein when an a-axis, a b-axis and a c-axis of a silver halide crystal lattice are each established taking as an origin a central metal of the metal complex incorporated into the silver halide grain, the metal complex has in a ligand thereof a site which can form any bond of a covalent bond, a dative bond and an ionic bond, or a bond in a mixed form of these bonds with a silver ion on a lattice point which does not exist on any of the a-axis, the b-axis and the c-axis. The silver halide photographic material has no reciprocity failure over a wide range of exposure illuminations without desensitization and decrease of contrast on the low intensity side.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: October 26, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadanobu Sato, Takahiro Matsuno, Masaru Takasaki, Tadashi Inaba
  • Publication number: 20040202974
    Abstract: A silver halide emulsion is disclosed, comprising at least one monovalent Au(I) complex coordinated with a compound represented by the following formula (1):
    Type: Application
    Filed: April 16, 2004
    Publication date: October 14, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hiroyuki Suzuki, Hirotomo Sasaki
  • Patent number: 6787296
    Abstract: Silver halide emulsions are disclosed comprising tabular silver halide grains containing dislocation lines in the peripheral region of the major faces; the tabular grains comprising a high iodide phase which is internal to and along the dislocation lines and an internal region which is surrounded by the high iodide phase and comprised of substantially homogeneous silver halide phase and having an average iodide content of not more than 1 mol %. Silver halide photographic materials by the use of the emulsion are also disclosed.
    Type: Grant
    Filed: May 20, 2002
    Date of Patent: September 7, 2004
    Assignee: Konica Corporation
    Inventors: Rieko Ren, Tomoyuki Nakayama
  • Patent number: 6780579
    Abstract: A silver halide emulsion having a silver chloride content of 90 mol % or more which has been chemically sensitized with a compound capable of releasing an AuICh− ion is described, wherein grains of the silver halide contain in the shell portion thereof 0.01 to 0.50 mol % of silver iodide per mol of the total silver, with Ch representing S, Se or Te.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: August 24, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirotomo Sasaki, Hiroyuki Suzuki, Tomoki Tasaka, Masafumi Mizuno, Hiroyuki Mifune, Atsushi Matsunaga
  • Patent number: RE40603
    Abstract: The present invention provides a silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion contained in the silver halide emulsion layer comprises silver halide grains having a silver chloride content of 90 mol % or more, and the silver halide emulsion further contains a metal complex having H2O as a ligand. It also provides a silver halide photographic light-sensitive material comprising a support having thereon at least one silver halide emulsion layer, wherein the silver halide emulsion contained in the silver halide emulsion layer contains a metal complex having O2? as a ligand.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: December 9, 2008
    Assignee: FUJIFILM Corporation
    Inventors: Tomonori Owaki, Tadanobu Sato, Takahiro Matsuno