Noble Metal Or Compound Thereof Patents (Class 430/605)
  • 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: 6534255
    Abstract: A light-sensitive silver halide photographic element comprising a support and at least one hydrophilic colloid layer comprising a binder and a vinylsulfonyl type hardener coated thereon, wherein at least one of said hydrophilic colloid layers is a silver halide emulsion layer containing tabular silver halide grains having an average diameter:thickness ratio of at least 3:1, characterized in that said tabular silver halide grains are chemically sensitized by at least one gold sensitizer and at least one thiosulfonate sensitizer in the presence of a palladium compound added during chemical sensitization. The silver halide photographic elements of the present invention can be advantageously developed in hardener free developer and used in high temperature rapid processing in automatic processors which include transporting rollers, have good photographic and physical characteristics and are free from surface defects.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: March 18, 2003
    Assignee: Eastman Kodak Company
    Inventors: Gerolamo Delfino, Roberta Ganduglia
  • Patent number: 6531274
    Abstract: A radiation-sensitive emulsion comprised of silver halide grains (a) containing greater than 50 mole percent chloride, based on silver, (b) having greater than 50 percent of their surface area provided by {100} crystal faces, and (c) having a central portion accounting for up to 99 percent of total silver and containing a first dopant of Formula (I) and a second dopant of Formula (II): [RuL6]n  (I) wherein n is zero, −1, −2, −3 or −4, and L6 represents bridging ligands which can be independently selected, provided that at least four of the ligands are anionic ligands, and at least one of the ligands is a cyano ligand or a ligand more electronegative than a cyano ligand; [TE4(NZ)E′]r  (II) wherein T is Os or Ru; E4 represents bridging ligands which can be independently selected; E′ is E or NZ; r is zero, −1, −2 or −3; and Z is oxygen or sulfur; wherein the dopant of Formula (II) is selected from hexacoor
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: March 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Jerzy Z. Mydlarz, Woodrow G. McDugle, Raymond S. Eachus
  • Patent number: 6518009
    Abstract: A method of imaging employing sensitized high chloride silver halide emulsions which exhibit improved speed and high intensity reciprocity performance for use with short duration, high intensity exposure optical and digital exposure systems. The method comprising providing a photographic element comprising at least one high chloride silver halide emulsion layer, exposing said element utilizing a high intensity actinic radiation exposure for an exposure time of less than {fraction (1/100)} second, and developing said element to produce a photographic image, wherein the high chloride silver halide emulsion layer is comprised of silver halide emulsion grains containing at least 90 mole percent chloride, based on silver, obtained by providing a high chloride host emulsion, bringing a Lippmann emulsion comprising primarily fine silver bromide grains doped with iridium into contact with said high chloride host emulsion, and subsequently chemically sensitizing the high chloride emulsion.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: February 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Jerzy Z. Mydlarz, Roger L. Klaus
  • Publication number: 20020197571
    Abstract: A fluorocompound denoted by general formula (1) below 1
    Type: Application
    Filed: February 25, 2002
    Publication date: December 26, 2002
    Inventors: Junichi Yamanouchi, Terukazu Yanagi, Tomokazu Yasuda, Nobuo Hamamoto
  • Patent number: 6489091
    Abstract: A photothermographic material disclosed, comprising on a support a light sensitive layer containing an organic silver salt, light sensitive silver halide grains and a solvent, wherein the organic silver salt comprises tabular organic silver salt grains exhibiting an average needle ratio of not less than 1.1 and less than 10.0, the light sensitive silver halide grains having been subjected to chemical sensitization.
    Type: Grant
    Filed: February 28, 2001
    Date of Patent: December 3, 2002
    Assignee: Konica Corporation
    Inventor: Hideki Takiguchi
  • Publication number: 20020155394
    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: Application
    Filed: October 1, 2001
    Publication date: October 24, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hirotomo Sasaki, Hideki Maeta, Naoto Ohshima
  • Patent number: 6461803
    Abstract: A silver halide color photographic lightsensitive material comprising at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer on a support, wherein the lightsensitive material has an ISO speed of 640 or more, and has a variation, in terms of a SNGR ratio, of magenta and cyan colors of 0 dB or more when the lightsensitive material is subjected to each of white light exposure, white fluorescent lamp exposure and three band fluorescent lamp exposure.
    Type: Grant
    Filed: September 6, 2000
    Date of Patent: October 8, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yoichi Suga, Takanori Hioki, Jun Okamoto
  • Publication number: 20020127503
    Abstract: A radiographic silver halide film material and a radiographic screen/film combination has been disclosed, said material having in at least one light-sensitive layer thereof an emulsion comprising {111} tabular silver halide grains rich in silver bromide, spectrally sensitive to irradiation in the wavelength range between 540 and 555 nm by the presence of a combination of at least one J-aggregating spectrally sensitizing cyanine dye according to the formula (I) and of at least one additional cyanine dye providing a shift of maximum absorption wavelength of said combination of less than 10 nm versus in the absence thereof, wherein said additional cyanine dye is at least one monomethine cyanine dye according to the formula (II), essentially having a solubilizing group or a latent solubilizing group, said dyes having been given in the description and in the claims of the present invention.
    Type: Application
    Filed: November 28, 2001
    Publication date: September 12, 2002
    Inventors: Kathy Elst, Paul Callant, Ilse Mans
  • Patent number: 6440649
    Abstract: X-radiation sensitive photothermographic imaging materials contain X-radiation sensitive phosphors in association with photosensitive silver halide. These phosphors provide an increase in imaging sensitivity and improved image contrast. Both intensifying and storage phosphors can be used.
    Type: Grant
    Filed: May 30, 2001
    Date of Patent: August 27, 2002
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Simpson, William E. Moore
  • Publication number: 20020102505
    Abstract: Disclosed are a silver halide emulsion and a silver halide photosensitive material copmrising a support and at least one photosensitive layer comprising the silver halide emulsion. The photosensitive emulsion comprises silver halide grains, wherein the silver chloride content is 90 mole % or more; the silver halide grains contain (I) at least one member of a six-coordinated complex in which iridium (Ir) is a central metal having halogen atom and O, H2O, thiazole or substituted thiazole as ligands and (II) at least one member of a six-coordinated complex in which iridium (Ir) is a central metal having halogen atom as a ligand; and the iridium compound (II) is present in a localized silver bromide phase.
    Type: Application
    Filed: November 27, 2001
    Publication date: August 1, 2002
    Applicant: FUJI PHOTO FILM CO., LTD
    Inventors: Shinichi Nakahira, Tatsuya Ishizaka
  • Publication number: 20020098453
    Abstract: The Silver halide grains in the silver halide emulsion is disclosed, comprising silver halide grains containing three or more kinds of transition metal complexes each having a different electron-releasing time respectively classified into any of Class A (100 seconds or more), Class B (more than {fraction (1/10)} seconds and less than 100 seconds), Class C (more than {fraction (1/1000)} seconds and {fraction (1/10)} seconds or less) and Class D ({fraction (1/1000)} seconds or less).
    Type: Application
    Filed: November 14, 2001
    Publication date: July 25, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Tadanobu Sato, Tomonori Owaki, Takahiro Matsuno, Tadashi Inaba
  • Patent number: 6423481
    Abstract: Photothermographic materials have increased photospeed provided by gold(III)-containing chemical sensitizers that are used combination with sulfur- and/or tellurium-containing chemical sensitizers. Increased photographic speed is achieved with minimal increase in Dmin. The gold(III)-containing chemical sensitizers are represented by the following Structure GOLD: Au(III)L′rYq GOLD wherein L′ represents the same or different ligands, each ligand comprising at least one heteroatom that is capable of forming a bond with gold, Y is an anion, r is an integer of from 1 to 8, and q is an integer of from 0 to 3.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: July 23, 2002
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Simpson, David R. Whitcomb, Steven M. Shor
  • Patent number: 6413710
    Abstract: Photothermographic emulsions and materials that are highly sensitive to imaging radiation and that provide high contrast images are provided by making the emulsions with photosensitive silver halide grains that have been formed in the presence of a hydroxytetrazaindene or an N-heterocyclic compound comprising at least one mercapto group, such as a mercapto tetrazole. Such grains can then be chemically sensitized before or after mixing with an organic silver salt using a sulfur-, tellurium-containing, or gold-containing chemical sensitizing compound, or mixtures thereof.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: July 2, 2002
    Assignee: Eastman Kodak Company
    Inventors: Steven M. Shor, Chaofeng Zou, Sharon Simpson, Stacy M. Ulrich
  • Patent number: 6403276
    Abstract: A film material has been provided with emulsions comprising {111} tabular silver halide grains rich in silver bromide, spectrally sensitive to irradiation in the wavelength range shorter than 420 nm by the presence of at least one blue spectral sensitizer and of at least one azacyanine dye, the formula of which has been given in the description and in the claims. A radiographic screen/film combination or system has also been provided comprising a duplitized film sandwiched between a pair of supporting or self-supporting X-ray intensifying screens, characterized in that i) said pair of supported or self-supporting X-ray intensifying screens essentially consists of luminescent phosphor particles emitting at least 50% and more preferably at least 80% of their emitted radiation in the wavelength range shorter than 420 nm, ii) said film corresponds with the film material disclosed hereinbefore.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: June 11, 2002
    Assignee: Agfa-Gevaert
    Inventors: Kathy Elst, Paul Callant, Ann Verbeeck
  • Patent number: 6403294
    Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one silver halide emulsion layer, wherein said silver halide emulsion comprises a metal complex in which a majority of coordination sites of the metal ion is occupied by ligands containing a chain or cyclic hydrocarbon as a parent compound, or ligands in which carbon atoms or hydrogen atoms in the chain or cyclic hydrocarbon as a parent compound are partially replaced by other atoms or atomic groups.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: June 11, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tadanobu Sato
  • Publication number: 20020064725
    Abstract: A system has been disclosed for use in radiographic industrial non-destructive testing materials and personal monitoring, making use therefor, of tabular silver brom(oiod)ide emulsion grains having {111} major faces, an average equivalent circular diameter of at least 0.5 &mgr;m and an average thickness of less than 0.30 &mgr;m, having been chemically sensitized by the steps of adding at least a gold salt in order to provide the surface of said tabular grains with at least 6000 atoms of gold per &mgr;m2 of its grain surface and per (0.1 &mgr;m of thickness)2; and at least a sulfite salt in such an amount that the ratio of the number of gold atoms per &mgr;m2 and (concentration of said sulfite salt, expressed in mmole per mole of silver)2 is at least 200000.
    Type: Application
    Filed: September 19, 2001
    Publication date: May 30, 2002
    Inventors: Marc Van Den Zegel, Marleen De Vester
  • Publication number: 20020051949
    Abstract: A silver halide emulsion is disclosed, comprising silver halide grains having a chloride content of not less than 90 mol% and internally doped with an iridium compound (A) and a compound (B) forming a stronger electron trap than said iridium compound (A), the silver halide grains meeting the following requirement:
    Type: Application
    Filed: July 13, 2001
    Publication date: May 2, 2002
    Applicant: KONICA CORPORATION
    Inventor: Koichiro Kuroda
  • Patent number: 6372419
    Abstract: A silver halide photographic material comprising a support having provided thereon at least a silver halide emulsion layer, wherein the material contains at least one metal complex contained in any of groups A, B and C: group A: an optically active metal complex; group B: a metal complex comprising a metal ion selected from the group consisting of transition metallic elements belonging to period 4 to 6 and group III to XI of the Periodic Table, and typical metallic elements belonging to period 4 to 6 and group XII to XIV of the Periodic Table, and at least one ligand represented by the following formula (I): wherein Z represents an atomic group to form a 5- or 6-membered ring; A represents a carbon atom or a nitrogen atom; X represents O31, S31 , NR1R2 or COO−; R1 and R2 each represents a hydrogen atom or an alkyl group; R represents a substituent; and n represents 0 or an integer of from 1 to 6; group C: a metal complex selected from a porphyrin complex, a porphycene complex, a pht
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: April 16, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Inaba, Tadanobu Sato, Kohzaburoh Yamada, Takahiro Matsuno
  • Patent number: 6368781
    Abstract: The invention relates to a photographic element comprising a support and a silve halide emulsion layer wherein the silver halide emulsion contains at least one absorber dye and at least one sensitizing dye. The wavelength of maximum absorbance of said absorber dye and the wavelength of maximum sensitivity of the emulsion provided by the spectral sensitizing dye are substantially the same. The emulsion is chemically sensitized with a stable and water soluble AuI) complex. This provides manufacturing improvements, improved detail and sharpness, improved dodging and burning and lower cost without an unwanted increase in heat sensitivity.
    Type: Grant
    Filed: October 20, 1999
    Date of Patent: April 9, 2002
    Assignee: Eastman Kodak Company
    Inventors: Pamela M. Ferguson, Roger Lok, Alton L. Chitty, Norman R. Oneal
  • Patent number: 6352823
    Abstract: The present invention provides a silver halide photographic material free of cyanide ions but having a higher photographic speed than ever. A novel silver halide photographic material is provided comprising a support having thereon at least one silver halide emulsion layer, wherein there is contained a complex in which an organic compound having no electric charge which doesn't form coordinate bond with metals or metal ions other than the central metals or metal ions occupies more than half of the central metals or metal ions as coordination site.
    Type: Grant
    Filed: February 15, 2000
    Date of Patent: March 5, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Tadanobu Sato
  • Patent number: 6350567
    Abstract: A silver halide photographic element comprising a silver halide emulsion which is greater than 50 mole-% silver chloride, said emulsion containing an isothiazolone compound represented by the formula wherein R1 is a substituent; and Z contains the carbon atoms necessary to form a substituted or unsubstituted non-aromatic ring, wherein the isothiazolone compound was added before or during precipitation of the emulsion.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: February 26, 2002
    Assignee: Eastman Kodak Company
    Inventors: Benjamin T. Chen, Roger L. Klaus, Jeri L. Mount
  • Patent number: 6346372
    Abstract: A silver halide photographic light-sensitive material is disclosed, comprising a support having thereon at least one silver halide emulsion layer, which contains at least one compound represented by formula (1) or (A-1).
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: February 12, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masaru Yoshikawa, Hirotomo Sasaki, Atsushi Matsunaga
  • Publication number: 20020009681
    Abstract: A silver halide photographic lightsensitive material comprises at least one lightsensitive silver halide emulsion layer on a support. The lightsensitive material exhibits a speed at 3×10−9 sec exposure time being lower than a speed at 10−5 sec exposure time by 30 or more in terms of speed unit.
    Type: Application
    Filed: March 29, 2001
    Publication date: January 24, 2002
    Inventor: Naoharu Kiyoto
  • Publication number: 20020009682
    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: Application
    Filed: June 13, 2001
    Publication date: January 24, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Tomonori Owaki, Tadanobu Sato, Takahiro Matsuno
  • Patent number: 6335154
    Abstract: There is disclosed a silver halide photographic emulsion comprising silver halide grains, wherein 50% or more of the projected area of the silver halide grains to be contained is occupied by tabular grains having an aspect ratio of 2 or more and a grain thickness of 0.2 &mgr;m or less, with the tabular grains each having a phase with the content of silver bromide being 10% or more, and wherein in the phase, the tabular grains each contain a metal complex dopant in an amount necessary to increase the density of a dislocation. This emulsion produces high contrast and better granularity while it has high sensitivity. Further, there is also disclosed a silver halide photographic emulsion, wherein the average equivalent-circle diameter of the total tabular grains among the silver halide grains contained is 2.0 to 4.0 &mgr;m, and the tabular grains contain at least one metal complex having, as a ligand, a heterocyclic compound in a number more than half of the coordination number of the metal atom.
    Type: Grant
    Filed: March 22, 2000
    Date of Patent: January 1, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masahiro Asami, Makoto Kikuchi, Tadanobu Sato
  • Publication number: 20010055736
    Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one silver halide emulsion layer, wherein said silver halide emulsion comprises a metal complex in which a majority of coordination sites of the metal ion is occupied by ligands containing a chain or cyclic hydrocarbon as a parent compound, or ligands in which carbon atoms or hydrogen atoms in the chain or cyclic hydrocarbon as a parent compound are partially replaced by other atoms or atomic groups.
    Type: Application
    Filed: November 1, 1999
    Publication date: December 27, 2001
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventor: TADANOBU SATO
  • Patent number: 6322960
    Abstract: A silver halide emulsion is disclosed, containing silver halide grains having a chloride content of not less than 90 mol %, wherein the silver halide grains each are internally doped with compound (A), compound (B) and compound (C); compounds (A) and (B) each meeting specified requirements and compound (C) being an iridium compound.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: November 27, 2001
    Assignee: Konica Corporation
    Inventors: Shuji Murakami, Koichiro Kuroda, Yumiko Osawa, Junji Ito, Shinichi Suzuki
  • Patent number: 6322961
    Abstract: A color reversal photographic element is disclosed comprising a support having coated thereon a silver halide emulsion layer comprising a silver halide emulsion chemically sensitized in the presence of an organomercapto Au(I) complex having the formula [L—Au—L]M wherein M is a cationic counter ion and each L is an organomercapto ligand which has antifogging, stabilizing or sensitizing properties, and a rapid sulfiding agent represented by structure SS-1 wherein each of the R1, R2, R3, and R4 groups independently represents an alkylene, cycloalkylene, carbocyclic arylene, heterocyclic arylene, alkarylene or aralkylene group; or taken together with the nitrogen atom to which they are attached, R1 and R2 or R3 and R4 can complete a 5- to 7-membered heterocyclic ring; and each of the B1, B2, B3, and B4 groups independently is hydrogen or represents a carboxylic, sulfinic, sulfonic, hydroxamic, mercapto, sulfonamido or primary or secondary amino nucleophilic group, with th
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: November 27, 2001
    Assignee: Eastman Kodak Company
    Inventors: Wai K. Lam, Roger Lok, David W. Sandford
  • Patent number: 6316178
    Abstract: Disclosed is a silver halide emulsion comprising gold-sensitized silver halide grains having a silver chloride content of 95 mole % or more, wherein from 8% to 50% of the amount of gold existing on the part of the silver halide grains is in the state of metal gold. The silver halide emulsion is an emulsion having a high silver chloride content that has high sensitivity and low fogging, and reduced both high illumination intensity reciprocity law failure and regression of latent image in the initial stage after exposure.
    Type: Grant
    Filed: November 30, 2000
    Date of Patent: November 13, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Seiji Yamashita
  • Patent number: 6312880
    Abstract: The invention relates to a multilayer photographic element comprising a reflective support wherein the color record 1 adjacent to the support comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; and wherein color record 2 above said color record 1 comprises at least one light sensitive layer and at least two non-light sensitive dye-forming interlayers and wherein color record 3 above said color record 2 comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; and a top overcoat layer comprising gelatin and ultraviolet absorbing material; and wherein each interlayer is substantially scavenger free, and color records 1, 2, and 3 comprise silver halide grains comprising greater than 90% silver chloride, and wherein the reciprocity characteristics of the silver halide grains are such that for a separation exposure of 1 microsecond and 0.4 sec, at least one color record develops to a density of at least 2.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: November 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Roberts, Hwei-Ling Yau, Glenn M. Brown
  • Patent number: 6296998
    Abstract: The invention relates to an emulsion comprising bromide grains wherein said grains are chemically sensitized with a water soluble Au(I) complex having the formula [L—Au—L]M wherein the complex is symmetrical; L is an organomercapto ligand which has antifogging, stabilizing, or sensitizing properties, and M is a cationic counter ion and a rapid sulfiding agent represented by structure SS-1: wherein each of the R1, R2, R3, and R4 groups independently represents an alkylene, cycloalkylene, carbocyclic arylene, heterocyclic arylene, alkarylene or aralkylene group; or taken together with the nitrogen atom to which they are attached, R1 and R2 or R3 and R4 can complete a 5- to 7-membered heterocyclic ring; and each of the B1, B2, B3, and B4 groups independently is hydrogen or represents a carboxylic, sulfinic, sulfonic, hydroxamic, mercapto, sulfonamido or primary or secondary amino nucleophilic group, with the proviso that at least one of the B1R1 to B4R4 groups contains
    Type: Grant
    Filed: September 21, 2000
    Date of Patent: October 2, 2001
    Assignee: Eastman Kodak Company
    Inventors: Jon N. Eikenberry, Roger Lok, Robert D. Wilson
  • Patent number: 6296995
    Abstract: The invention relates to A reflective base photographic element comprising a support material comprising a microvoided biaxially oriented polymer sheet having an upper surface L* of at least 93.5 and imaging layers wherein said imaging layers have an exposure range of between 125 to 0.5 when there is a Status A reflection density shoulder loss of no more than 8 percent as a function of the cyan record, wherein said photographic element has an exposure range of at least 125 nanoseconds to 0.5 seconds when there is a Status A reflection density shoulder loss of no more than 8 percent as a function of the magenta color record, wherein said photographic element has an exposure range of at least 125 nanoseconds to 0.5 seconds when there is a Status A reflection density shoulder loss of no more than 4 percent as a function of the yellow color record, and wherein said photographic element has a Status A reflection density minimum of less than 0.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: October 2, 2001
    Assignee: Eastman Kodak Company
    Inventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais
  • Publication number: 20010021492
    Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the material is contained at least one complex selected from complexes having a compound represented by the following formula (I) as at least one of their respective ligands or complexes having a diketone compound as at least one of their respective ligands: 1
    Type: Application
    Filed: February 22, 2001
    Publication date: September 13, 2001
    Inventors: Tadanobu Sato, Takahiro Matsuno, Tadashi Inaba
  • Patent number: 6284450
    Abstract: A photosensitive image-forming element is provided comprising on a support at least one photosensitive layer containing silver halide crystals which are internally doped with a transition metal complex forming centers which are able to interact with photocharges, wherein said transition metal complex is represented by the general formula (1): [ML6−nFn]m−  (1) as disclosed in the claims and in the description. A method for the preparation of a silver halide containing image-forming element, wherein the silver halide comprises said transition metal complex, has also been described.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: September 4, 2001
    Assignee: AGFA-Gevaert
    Inventors: Dirk Vandenbroucke, Matthias Höhling, Ingo Reese
  • Patent number: 6280916
    Abstract: The invention relates to a multilayer photographic element comprising a reflective support wherein the color record 1 adjacent to the support comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; and wherein color record 2 above said color record 1 comprises at least one light sensitive layer and at least two non-light sensitive dye-forming interlayers and wherein color record 3 comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; an optional UV dye containing interlayer; and top overcoat; and wherein each interlayer is substantially scavenger free, silver halide grains comprising greater than 90% silver chloride, and wherein the reciprocity characteristics of the silver halide grains are such that for a separation exposure of 1 microsecond and 0.4 sec, each color record develops to a density of at least 2.0 within a log exposure range of 1.2 or less relative to the exposure point producing a density 0.04 above Dmin.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: August 28, 2001
    Assignee: Eastman Kodak Company
    Inventor: Michael R. Roberts
  • Patent number: 6277551
    Abstract: In a screen/film system offering a suitable method for radiological image formation the film material comprises a {111} tabular silver chlor(oiod)ide emulsion comprising a binder and silver chlor(oiod)ide crystals having at least 90 mole % of silver chloride, accounting for at least 50% of the total projective surface of said crystals, further having an average thickness of less than 0.3 &mgr;m, an average crystal diameter of more than 0.5 &mgr;m and an average aspect ratio more of than 2:1, wherein said tabular crystals have been spectrally sensitized with blue and/or green spectral sensitizers, characterized in that said crystals have been doped with at least one of a hexa-coordinated metal complex ion having at least 4 fluorine atoms according to the formula (I) as explained more in detail in the description and in the claims [ML6−nFn]m−  (I).
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: August 21, 2001
    Assignee: Agfa-Gevaert
    Inventor: Dirk Vandenbroucke
  • Patent number: 6277552
    Abstract: A light-sensitive silver halide photographic emulsion has been disclosed, said emulsion comprising a binder and core-shell tabular grains, wherein said core is more rich in silver bromide than said shell, characterized in that said grains contain, in the core thereof representing an amount of precipitated silver halide extending up to less than 50% of all precipitated silver halide, a ruthenium complex compound as a sole complex compound providing shallow electron traps.
    Type: Grant
    Filed: May 8, 2000
    Date of Patent: August 21, 2001
    Assignee: Agfa-Gevaert
    Inventors: Kathy Elst, Yves Vanmeenen, Dirk Vandenbroucke
  • Patent number: 6268116
    Abstract: The invention relates to a multilayer photographic element comprising a reflective support wherein the color record 1 adjacent to the support comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; and wherein color record 2 above said color record 1 comprises at least one light sensitive layer and at least two non-light sensitive dye-forming interlayers and wherein color record 3 comprises at least one light sensitive layer and a non-light sensitive dye-forming interlayer; an optional UV dye containing interlayer and a top overcoat; and wherein each interlayer is completely or substantially scavenger free, silver halide grains comprising greater than 90% silver chloride, and wherein the reciprocity characteristics of the silver halide grains are such that for a separation exposure of 1 microsecond and 0.4 sec, each color record develops to a density of at least 2.0 within a log exposure range of 1.2 or less relative to the exposure point producing a density 0.
    Type: Grant
    Filed: December 27, 1999
    Date of Patent: July 31, 2001
    Assignee: Eastman Kodak Company
    Inventors: Michael R. Roberts, Gary J. McSweeney, Alphonse D. Camp
  • Publication number: 20010006768
    Abstract: A silver halide photographic emulsion in which tabular grains each having an equivalent-circle diameter of 0.6 &mgr;m or more, a thickness of 0.
    Type: Application
    Filed: December 22, 1998
    Publication date: July 5, 2001
    Applicant: Yoichi Maruyama
    Inventor: YOICHI MARUYAMA
  • Patent number: 6245498
    Abstract: A silver halide emulsion is disclosed, comprising tabular grains having an aspect ratio of 5 or more, the tabular grains further having dislocation lines of 30 or more per a grain, in a fringe portion of the grain and the tabular grains each containing silver iodide, the content of which gradually and continuously varies in the direction of from the grain center to the edge.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: June 12, 2001
    Assignee: Konica Corporation
    Inventors: Katsuhiko Suzuki, Hiromoto Ii, Sadayasu Ishikawa
  • Publication number: 20010003037
    Abstract: Disclosed is a silver halide emulsion comprising gold-sensitized silver halide grains having a silver chloride content of 95 mole % or more, wherein from 8% to 50% of the amount of gold existing on the part of the silver halide grains is in the state of metal gold.
    Type: Application
    Filed: November 30, 2000
    Publication date: June 7, 2001
    Inventor: Seiji Yamashita
  • Patent number: 6242171
    Abstract: This invention concerns tabular photographic emulsions and their preparation. According to the invention, high bromide tabular emulsion is precipitated and then a non-sensitized fine grain emulsion comprising grains exhibiting {100} crystal faces is added, before sensitization. The resulting emulsion exhibits improved speed/fog performance.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: June 5, 2001
    Assignee: Eastman Kodak Company
    Inventor: Luc R. Gourlaouen
  • Patent number: 6214531
    Abstract: A light-sensitive silver halide photographic emulsion has been described comprising a binder and tabular grains rich in silver bromide, characterized in that said grains contain as a dopant RhClx(SCN)y, wherein each of x and y are integers having a value of at least 1 and less than 6 so that x+y equals 6.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: April 10, 2001
    Assignee: Agfa-Gevaert
    Inventors: Kathy Elst, Dirk Vandenbroucke, Gina De Lamper
  • Patent number: 6200744
    Abstract: Disclosed is a silver halide photographic light-sensitive material comprising at least one photosensitive silver halide emulsion layer on a support, and containing a Pd(II) complex represented by formula (I-1): where Z1 represents an alkylene group, an arylene group, or a divalent heterocyclic group, Q represents an ion which neutralizes electric charge of the Pd complex, m represents an integer of from 0 to 4, R1 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an alkylsulfonyl group, or an arylsulfonyl group, each of X1 and X2 represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic group, and each of Y1 and Y2 represents an organic or inorganic ligand wherein Y1 and Y2 may be combined to form a ring together with Pd.
    Type: Grant
    Filed: February 10, 2000
    Date of Patent: March 13, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hirotomo Sasaki, Hiroshi Takeuchi
  • Patent number: 6197485
    Abstract: A photographic assemblage comprising a silver halide photographic light-sensitive element comprising at least one sulfur and gold sensitized silver halide emulsion layer, said element comprising chlorinated s-triazine hardeners and photographically useful chemical compounds containing cyano groups, and a closed vessel in which the element is closed and stored at a constant relative humidity, is protected against HCN gas, which may evolve from photographic addenda included in the light-sensitive element to cause fog in the silver halide emulsion layers, by the addition of a palladium compound, in a silver halide emulsion layer and/or an adjacent layer thereto, as scavenger for HCN gas released from the element.
    Type: Grant
    Filed: September 27, 1993
    Date of Patent: March 6, 2001
    Assignee: Minnesota Mining & Manufacturing Company
    Inventors: Luigi Cellone, Brunella Fornasari, Giovanni Giusto
  • Patent number: 6194135
    Abstract: A negatively developing color photographic silver halide material having a support and 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, at least 95 mol % of the silver halides of which consist of AgCl, and in which at least one silver halide emulsion layer exhibits solarization on analogue exposure, is distinguished on scanning exposure by elevated color density and on analogue exposure by contrast which is independent of exposure time.
    Type: Grant
    Filed: October 22, 1999
    Date of Patent: February 27, 2001
    Assignee: Agfa-Gevaert Naamloze Vennootschap
    Inventors: Cuong Ly, Stefan Amann, Jürgen Jung, Dieter Rockser
  • Patent number: 6183946
    Abstract: A silver halide emulsion is disclosed, which is a silver chlorobromide or silver chloroiodobromide emulsion having a silver chloride content of 90 mol % or more, wherein the silver halide grain in said emulsion has, in the vicinity of the grain surface, a silver bromide-rich phase containing an iridium compound and, the silver bromide-rich phase comprises an inner part region and an outer side part region, wherein the inner side part region has a higher iridium compound density than the outer side part region has.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: February 6, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Yoshiro Ochiai
  • Patent number: 6162599
    Abstract: A photosensitive image-forming element has been provided, comprising on a support at least one photosensitive layer containing silver halide crystals which are internally doped with a transition metal complex (more preferably a metal halide chalcogenic cyanate complex, further called a `MHCC`-complex) forming a deep and permanent electron trap, wherein said transition metal complex satisfies the general formula (1) as disclosed in the claims and in the description.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: December 19, 2000
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Dirk Vandenbroucke, Kathy Elst, Gina De Lamper
  • Patent number: 6159676
    Abstract: The invention relates to an emulsion comprising tabular grains of greater than or equal to about 3.7 .mu.m area weighted mean equivalent circular diameter and thiourea sensitizer having the structural formula: ##STR1## wherein each of R.sub.1, R.sub.2, R.sub.3, and R.sub.4 independently can represent an alkylene, cycloalkylene, carbocyclic arylene or heterocyclic arylene, alarylene or aralkylene group; or taken together with the nitrogen atom to which they are attached, R.sub.1 and R.sub.2 or R.sub.3 and R.sub.4 can complete a 5- to 7-member heterocyclic ring; andeach of A.sub.1, A.sub.2, A.sub.3, and A.sub.4 independently is hydrogen or represents a carboxylic, sulfinic, sulfonic, hydroxamic, mercapto, sulfonamido or primary or secondary amino nucleophilic group;with the proviso that at least one of A.sub.1 R.sub.1 to A.sub.4 R.sub.4 contains a nucleophilic group bonded to a urea nitrogen atom through a 2- or 3-member chain.
    Type: Grant
    Filed: December 5, 1997
    Date of Patent: December 12, 2000
    Assignee: Eastman Kodak Company
    Inventors: Ming Jye Lin, Kenneth J. Lushington, Frederick C. Derks, Joseph C. Deaton