And Antifoggant Or Color Stabilizer Patents (Class 430/551)
  • Patent number: 7687229
    Abstract: A silver halide color photographic light-sensitive material having, on a support, at least each one light-sensitive silver halide emulsion layers containing yellow-, magenta-, or cyan-dye-forming-coupler, and at least one light-insensitive hydrophilic colloid layer, wherein at least one of the dye-forming couplers is a dye-forming coupler that forms an azomethine dye having a solubility of 1×10?8 mol/L to 5×10?3 mol/L in ethyl acetate; and an image forming method using the light-sensitive material.
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: March 30, 2010
    Assignee: FUJIFILM Corporation
    Inventors: Yasuaki Deguchi, Kiyoshi Takeuchi, Mamoru Sakurazawa, Makoto Yamada, Takehiko Satou
  • Patent number: 7579139
    Abstract: A silver halide color photographic light-sensitive material, in which a non-light-sensitive hydrophilic colloidal layer, on a transmission-type support, contains a solid fine-particle dispersion of a dye represented by formula (I), any one of photographic constituting layers contains a compound represented by formula (A) and/or a compound represented by formula (B) or (FS-2), and the light-sensitive material does not contain any compound represented by formula (C): in formulas (I), (A), (B) and (C), D represents a group to give a compound having a chromophore; X represents a dissociable hydrogen or a group having a dissociable hydrogen; y is an integer from 1 to 7; R1 represents a substituted or unsubstituted alkyl or alkoxy group; R2 and R3 each independently represent a substituted or unsubstituted alkyl group; R4 represents a substituted or unsubstituted alkyl group; M, M1, M2 and M3 each independently represent a cation; n represents an integer of 1 to 7; A and B each independently represent a fluor
    Type: Grant
    Filed: December 26, 2006
    Date of Patent: August 25, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Hidekazu Sakai, Shin Soejima, Shinji Tanaka
  • Patent number: 7556918
    Abstract: A silver halide color photographic light-sensitive material, having at least one each of blue-, green-, and red-sensitive emulsion layers containing yellow, magenta, and cyan couplers, respectively, on a support; wherein said blue-sensitive emulsion layer contains at least one coupler of formula (I); and wherein the light-sensitive material satisfies expression a-1) and/or b-1): wherein, Q forms a 5- to 7-membered ring with the —N?C—N(R1)-; R1 and R2 each are a substituent; m is 0 to 5; and X is a hydrogen atom, or a coupling split-off group; 0.5?Dmax(UV)/Dmin(UV)?1.1??a-1) wherein Dmax(UV)/Dmin(UV) is the smallest of the value in a wavelength range of 340 to 450 nm; 1300?(B?C)/A?20000??b-1) wherein B is yellow Dmax, C is yellow Dmin; and A is an amount mol/m2 of the coupler of formula (I).
    Type: Grant
    Filed: December 31, 2007
    Date of Patent: July 7, 2009
    Assignee: FUJIFILM Corporation
    Inventors: Hiroyuki Yoneyama, Akira Ikeda, Shin Soejima, Kiyoshi Takeuchi, Naoto Matsuda
  • Patent number: 7335466
    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: May 22, 2006
    Date of Patent: February 26, 2008
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Hiroshi Kashiwagi, Narito Goto
  • 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: 7279271
    Abstract: The present invention provides a color material and a silver halide color photographic light-sensitive material, particularly, a color material and a silver halide color photographic light-sensitive material which are excellent in a coloring capability, processing stability, dye image fastness and a white background.
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: October 9, 2007
    Assignee: Konica Minolta Photo Imaging Inc.
    Inventor: Takeshi Hakii
  • Patent number: 7241563
    Abstract: A silver halide color photographic light-sensitive material having a silver halide emulsion layer, and (1) a substantially light-insensitive dye-forming-coupler-containing layer, and (2) at least one layer selected from a non-color-forming intermediate layer containing a color-mixing inhibitor and a non-color-forming intermediate layer substantially free of color-mixing inhibitor, wherein i) when the light-insensitive dye-forming-coupler-containing layer is included, the layer is positioned adjacent to the silver halide emulsion layer, and ii) when the non-color-forming intermediate layer containing a color-mixing inhibitor and the non-color-forming intermediate layer substantially free of color-mixing inhibitor are included, these layers are positioned adjacent to each other.
    Type: Grant
    Filed: November 8, 2004
    Date of Patent: July 10, 2007
    Assignee: FUJIFILM Corporation
    Inventors: Mamoru Sakurazawa, Jun Arakawa
  • 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: 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: 7153640
    Abstract: A silver halide light sensitive photographic element comprising a support bearing at least one cyan image forming hydrophilic colloid layer comprising cyan image dye forming coupler of Formula I and a saturated alcoholic high boiling solvent or mixture of solvents of Formula II: Formula I wherein R1 is an alkyl group, R2 is a ballast group, and X is hydrogen or a coupling-off group; Formula II wherein R3 represents an alkyl group, and R4 and R5 individually represent hydrogen or an alkyl group, or R3 and R4 may be joined to form a cycloalkyl group, provided that the total number of carbon atoms contained in R3, R4, and R5 is at least 10 and that the alcoholic solvent or mixture of solvents of Formula II is liquid at 37° C.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: December 26, 2006
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Zengerle, Christopher J. Haller
  • Patent number: 7153638
    Abstract: A silver halide color photosensitive material comprising a support and, superimposed thereon, a blue-sensitive layer unit, a green-sensitive layer unit and a red-sensitive layer unit, each of these light-sensitive layer units composed of at least one silver halide emulsion layer, together with at least one nonphotosensitive layer, wherein at least one compound (A) and at least one compound (B) are contained, the compound (A) being a heterocyclic compound of less than 4.5 C log P which when added, is capable of enhancing the sensitivity of the silver halide color photosensitive material as compared with that exhibited when not added, the compound (B) being a heterocyclic compound of 4.5 or greater C log P which when added, is capable of enhancing the sensitivity of the silver halide color photosensitive material as compared with that exhibited when not added.
    Type: Grant
    Filed: February 25, 2005
    Date of Patent: December 26, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Junichiro Hosokawa, Takanori Hioki
  • Patent number: 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: 7144691
    Abstract: A color photographic material which contains on a support at least one blue-sensitive silver halide emulsion layer containing at least one yellow coupler, at least one green-sensitive silver halide emulsion layer containing at least one magenta coupler, at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, together with customary non-light-sensitive layers, characterized in that at least one layer contains a compound of formula (I) or (II) wherein the R1-radicals and R2-radicals are preferably methyl; and wherein the compounds of formula (II) are preferably (III) R3 is a radical —CH(CH3)—X—D, wherein X is phenylene.
    Type: Grant
    Filed: February 25, 2003
    Date of Patent: December 5, 2006
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Stéphane Biry, Francesco Fuso, Andreas Kramer
  • Patent number: 7138225
    Abstract: A silver salt photothermographic dry imaging material wherein said material has photographic speeds (1) and (2) determined based on the predetermined conditions and the photographic speed (2) is not more than 1/10 of the photographic speed (1), and the coefficient of determination value R2 of the linear regression line is 0.998–1.000, which is obtained from the predetermined density points having a* and b* arranged in two-dimensional coordinates in which a* is used as the abscissa and b* is used as the coordinate of the CIE 1076 (L*a*b*) color space, b* of the intersection point of the linear regression line with the ordinate is ?5–5, and gradient (a*/b*) is 0.7–2.5.
    Type: Grant
    Filed: September 2, 2004
    Date of Patent: November 21, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Tetsuya Suzuki, Hideki Takiguchi, Toshiyuki Marui, Kazuhiko Fujikura, Kazuhito Ihara, Yasuo Taima, Kenji Ohnuma, Hiroto Ito
  • Patent number: 7122299
    Abstract: A silver halide photographic photosensitive material, containing at least one residual-color-reducing agent having at least one aromatic ring or aromatic heterocycle in its molecule; a processing method thereof; and an image-forming method.
    Type: Grant
    Filed: November 5, 2003
    Date of Patent: October 17, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Takanori Hioki, Naoto Matsuda
  • Patent number: 7108963
    Abstract: A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a combination of a carbonamide compound, a phenolic compound, and an electron-rich compound. Such a combination provides improved dye stability.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: September 19, 2006
    Assignee: Eastman Kodak Company
    Inventors: Albert J. Mura, Jr., Gary M. Russo, Shari L. Eiff, Brian Thomas
  • Patent number: 7090969
    Abstract: A photographic element comprises a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I1: wherein L is a linking moiety; X is a heteroatom group selected from O, S, or NR? where R? is H or a substituent; w is 0 or 1; R is hydrogen or a substituent group; n is an integer from 0 to 5; and ST represents a stabilizer selected from the group consisting of: A. a thiomorpholine dioxide; B. a dialkoxy aromatic group linked through a phenolic oxygen; C. a dialkoxy aromatic group linked through the aromatic ring; D. a sulfonamido group; E. a hydroxyphenyl benzotriazole group; and F. a phenolic group.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: August 15, 2006
    Assignee: Eastman Kodak Company
    Inventors: Albert J. Mura, Shari L. Eiff, Gary M. Russo
  • Patent number: 7060425
    Abstract: A color photographic material is described containing a compound of formula (I) wherein, if n=1, R1 is, inter alia, a radical of formula (II), and, if n=2, R1 is unsubstituted or C1–C4alkyl- or hydroxy-substituted phenylene or naphthylene; or —R12—X—R13—, and other residues are as defined in claim 1. The compound of formula (I) is effective as scavenger of the oxidized form of the developer (Dox scavenger), especially when contained in an interlayer between light sensitive layers. Selected compounds of this class can also be used as additives, for example as dye stabilizer, in color photographic materials, or as an antioxidant for organic materials.
    Type: Grant
    Filed: October 11, 1999
    Date of Patent: June 13, 2006
    Assignee: Ciba Specialty Chemicals Corp.
    Inventors: Suruliappa Gowper Jeganathan, Stéphan Biry, Peter Nesvadba, David George Leppard
  • Patent number: 7022470
    Abstract: A photothermographic imaging material having high sensitivity and superior temporal storage stability. The photothermographic imaging material includes silver halide on at least one side of a support, and includes at least one kind of the compounds represented by the following general formula (1).
    Type: Grant
    Filed: March 24, 2004
    Date of Patent: April 4, 2006
    Assignee: Konica Minolta Medical & Graphic, Inc.
    Inventors: Kiyoshi Fukusaka, Kazuaki Nakamura, Ryouhei Iwamoto, Norio Miura, Nobuaki Kagawa, Soc Man Ho Kimura
  • 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: 7014989
    Abstract: Black-and-white, aqueous-based, silver halide-containing photothermographic materials have increased stability after imaging with the incorporation of at least 0.00005 mol/m2 of a 4-substituted urazole.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: March 21, 2006
    Assignee: Eastman Kodak Company
    Inventors: Sharon M. Simpson, Kumars Sakizadeh
  • Patent number: 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: 6974663
    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: Grant
    Filed: December 21, 2001
    Date of Patent: December 13, 2005
    Assignee: Eastman Kodak Company
    Inventors: Joseph F. Bringley, Krishnamohan Sharma, Kenneth J. Lushington
  • Patent number: 6900007
    Abstract: A photographic element comprises a light-sensitive silver halide emulsion layer having associated therewith (a) a 1H-pyrazolo[1,5-b][1,2,4]triazole dye-forming coupler; (b) a sulfonamide compound free of aromatic substituents directly linked to the sulfonamide nitrogen or sulfur atoms and (c) a dialkoxy substituted aromatic compound.
    Type: Grant
    Filed: August 4, 2004
    Date of Patent: May 31, 2005
    Assignee: Eastman Kodak Company
    Inventors: Albert J. Mura, Jr., Gary M. Russo, Shari L. Eiff
  • Patent number: 6900006
    Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating compound at least one heterocyclic cyan dye-forming coupler of a specified formula and an aromatic stabilizer of a particular formula. The combination provides improved image stability.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: May 31, 2005
    Assignee: Eastman Kodak Company
    Inventors: Danuta Gibson, David Clarke, Christopher J. Winscom, Michael W. Crawley
  • Patent number: 6893810
    Abstract: A photographic material, comprising a support having thereon at least one yellow, cyan, and magenta color-forming light-sensitive silver halide emulsion layer, and at least one light-insensitive non-color forming hydrophilic colloid layer. At least one cyan emulsion layer contains a cyan dye-forming coupler [C-1] and at least one light-insensitive colloid layer exists between the support and a light-sensitive emulsion layer most adjacent thereto. Also, a photographic material, comprising a transparent support having thereon at least three kinds of light-sensitive hydrophilic colloid layers each containing any of yellow, magenta and cyan dye-forming couplers and containing silver halide grains different from each other in color sensitivity, and at least one light-insensitive hydrophilic colloid layer. Any layer contains a compound [XI], at least one colloid layer contains a solid fine particle dispersion of a dye [I], and said material has a film pH from 4.6 to 6.4.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: May 17, 2005
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hidekazu Sakai, Osamu Takahashi, Kiyohito Takada, Keizo Kimura
  • Patent number: 6893809
    Abstract: This invention relates to a negative silver halide photographic element comprising a support and a silver halide imaging layer containing a light sensitive silver halide imaging emulsion, said silver halide imaging layer further comprising a separately precipitated non-imaging intentionally fogged fine grain emulsion and an electron transfer agent releasing compound represented by formula (I): CAR1-(L)n-ETA??(I) wherein: CAR1 is a carrier moiety which is capable of releasing -(L)n-ETA on reaction with oxidized developing agent; L is a divalent linking group, n is 0, 1 or 2; and ETA is a releasable electron transfer agent, and (optionally) a development accelerator releasing compound represented by the formula (II): CAR2—(SAM)-NX1—NX2X3??(II) wherein: CAR2 is a carrier moiety which is capable of releasing —(SAM)-NX1—NX2X3 on reaction with oxidized developing agent; SAM is a silver absorbable moiety attached to the carrier moiety and is released on reaction with oxidized development agent; and —NX1—NX2X
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: May 17, 2005
    Assignee: Eastman Kodak Company
    Inventors: Kenneth J. Reed, James A. Friday, John E. Keevert, Stephen P. Singer, Mary C. Brick
  • 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: 6887656
    Abstract: Disclosed is a color photographic element comprising at least one light sensitive silver halide emulsion layer containing a compound that does not react with oxidized developer, has a Log Kow high enough to improve speed, compared to the same layer without the compound, and comprises (1) a thiadiazole, or (2) an oxadiazole, or (3) a 1,2,4 triazole bearing an amido substituent, and does not contain a hydroxyl or thiol group or their tautomeric equivalents on the azole ring.
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: May 3, 2005
    Assignee: Eastman Kodak Company
    Inventors: Louis E. Friedrich, Philip A. Allway, Judith A. Bogie, Bernard A. Clark, Charles E. Heckler, Stephen P. Singer
  • Patent number: 6846620
    Abstract: Photographic elements are disclosed comprising a silver halide emulsion layer having associated therewith a dye forming coupler and a compound of the following Formula I: R1R2N—C(O)—(R)p—C(O)—NR3R4 wherein R represents a hydrocarbon linking group; p=0 or 1; and each of R1, R2, R3 and R4 independently represents an aromatic, cyclic, linear or branched chain hydrocarbon group, or R1 and R2 or R3 and R4 combine together to form a ring with the associated nitrogen atom to which they are attached; with the proviso (i) at least one of R1, R2, R3 and R4 comprises an aromatic, cyclic, secondary alkyl, or otherwise or branched hydrocarbon group, or (ii) at least R1 and R2 or R3 and R4 combine together to form a ring with the associated nitrogen atom. Photographic elements of the present invention upon exposure and photographic processing exhibit good activity and yield dye images that have unexpected and substantial improvements in the stability of the formed image dyes.
    Type: Grant
    Filed: June 27, 2003
    Date of Patent: January 25, 2005
    Inventors: Albert J. Mura, Jr., Gary M. Russo, J. Ramon Vargas, Shari L. Eiff
  • Patent number: 6841344
    Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating hydrogen bond donating and hydrogen bond accepting compound and at least one pyrazole fused ring derivative coupler. The combination provides improved colour reproduction.
    Type: Grant
    Filed: December 4, 2002
    Date of Patent: January 11, 2005
    Assignee: Eastman Kodak Company
    Inventors: Danuta Gibson, David Clarke, Christopher J. Winscom
  • Patent number: 6824936
    Abstract: The present invention relates to an imaged element comprising at least one imaged layer comprising at least one yellow dye and a support, wherein said support comprises at least one face side resin layer comprising a material capable of improving the yellow dark stability of said imaged element, wherein said materials has the formula:
    Type: Grant
    Filed: August 5, 2003
    Date of Patent: November 30, 2004
    Assignee: Eastman Kodak Company
    Inventors: Thomas A. Rosiek, Elizabeth K. Priebe
  • Patent number: 6806042
    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 red-sensitive layer contains at least one oil former, 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, and the ratio by weight of oil former to cyan coupler is less than 1:1, is distinguished by exc
    Type: Grant
    Filed: July 2, 2003
    Date of Patent: October 19, 2004
    Assignee: Agfa-Gevaert
    Inventors: Ralf Weimann, Markus Geiger, Cuong Ly, Klaus Sinzger, Beate Weber, Heinz Wiesen
  • Patent number: 6790602
    Abstract: This invention relates to a method of spectrally sensitizing a silver halide emulsion comprising the following steps in the following order a) providing a silver halide emulsion comprising tabular silver halide grains having an inner dye layer adjacent to the silver halide grain, said dye layer comprising at least one dye (Dye 1) that is capable of spectrally sensitizing silver halide, b) adding to the emulsion at least one dye (Dye 2) capable of providing a second dye layer adjacent to the inner dye layer, and c) adding to the emulsion a non-cationic surfactant or a scavenger for oxidized developer, or a combination of the two, to form a silver halide emulsion comprising silver halide grains having associated therewith two dye layers, wherein the dye layers are held together by non-covalent forces or by in situ bond formation; the outer dye layer adsorbs light at equal or higher energy than the inner dye layer; and the energy emission wavelength of the outer dye layer overlaps with the energy absorption
    Type: Grant
    Filed: January 17, 2003
    Date of Patent: September 14, 2004
    Assignee: Eastman Kodak Company
    Inventors: David R. Foster, Stephen P. Singer, William J. Harrison, Alan R. Pitt
  • Patent number: 6770431
    Abstract: A silver halide color photosensitive material comprising a 1H-pyrazolo[3,2-c]-1,2,4-triazole type coupler having, in its molecule, at least one substituent represented by the following general formula (I): wherein R1 represents a substituent; m represents an integer of 0 to 4; and R2 represents an alkyl group, alkenyl group or aryl group.
    Type: Grant
    Filed: December 27, 2002
    Date of Patent: August 3, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yuki Mizukawa, Masaaki Tsukase, Toshio Kawagishi, Hiroshi Fukuzawa
  • Publication number: 20040126721
    Abstract: Disclosed is a silver halide photographic light-sensitive material wherein a silver halide emulsion layer and/or a hydrophilic colloid layer contains at least one hydrazine derivative, and a silver halide emulsion is spectrally sensitized with a particular dye, and which contains a benzotriazol compound. There is provided a silver halide photographic light-sensitive material that exhibits superior residual color property and can provide stable photographic performance even after a long term running with a reduced silver amount.
    Type: Application
    Filed: September 29, 2003
    Publication date: July 1, 2004
    Inventors: Mitsunori Hirano, Kunio Ishigaki, Tokuju Oikawa
  • Patent number: 6756189
    Abstract: Disclosed is a colour photographic element containing one or more cyan dye-forming couplers, a UV absorber and a specific class of stabiliser, and an imaging process used therewith. The element exhibits improved stability.
    Type: Grant
    Filed: October 11, 2002
    Date of Patent: June 29, 2004
    Assignee: Eastman Kodak Company
    Inventors: Danuta Gibson, Llewellyn J. Leyshon, David Clarke
  • Publication number: 20040110103
    Abstract: A colour photographic silver halide material comprising a substrate, 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 %, the cyan coupler corresponding to formula 1
    Type: Application
    Filed: July 2, 2003
    Publication date: June 10, 2004
    Applicant: Agfa-Gevaert (Belgium)
    Inventors: Ralf Weimann, Markus Geiger, Cuong Ly, Klaus Sinzger, Beate Weber, Heinz Wiesen
  • Publication number: 20040101792
    Abstract: A silver halide color photosensitive material comprising a 1H-pyrazolo[3,2-c]-1,2,4-triazole type coupler having, in its molecule, at least one substituent represented by the following general formula (I): 1
    Type: Application
    Filed: December 27, 2002
    Publication date: May 27, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Yuki Mizukawa, Masaaki Tsukase, Toshio Kawagishi, Hiroshi Fukuzawa
  • Patent number: 6720134
    Abstract: A silver halide photographic emulsion comprising grains, wherein 70% or more of the total projected area of the grains is occupied by silver halide grains each meeting requirements (a) to (d) below (a) the grain is composed of a tabular silver halide host grain having two mutually parallel main planes and aspect ratio of 2 or more, and a silver halide protrusion portion epitaxially junctioned on the surface of the host grain; (b) the silver bromide contents of both the host grain and the protrusion portion are 70 mol % or more; (c) the percentage of the silver amount in the protrusion is 12% or less of the silver amount in the host grain; and (d) the grain has a shallow electron-trapping zone.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: April 13, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Yasushi Miyamoto, Toshihiro Nishikawa, Nobuyuki Haraguchi, Hideo Ikeda, Takayoshi Mori
  • Publication number: 20040058284
    Abstract: A silver halide color photographic light-sensitive material, having at least one each of blue-, green-, and red-sensitive emulsion layers containing yellow, magenta, and cyan couplers, respectively, on a support;
    Type: Application
    Filed: February 28, 2003
    Publication date: March 25, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Hiroyuki Yoneyama, Akira Ikeda, Shin Soejima, Kiyoshi Takeuchi, Naoto Matsuda
  • Patent number: 6696234
    Abstract: A silver halide photosensitive material contains a compound of the following general formula (I): wherein A1a represents a group selected from among CR1aR2a, NR1a, an oxygen atom and sulfur atom, A1b represents a group selected from among CR1bR2b, NR1b, an oxygen atom and sulfur atom, and each of R1a, R2a, R1b, R2b and R3 represents a hydrogen atom or a substituent, provided that, in the groups of CR1aR2a and CR1bR2b, R1aR2a and R1bR2b may represent a single divalent substituent, n represents an integer of 1 to 4, provided that, when n is 2 or more, a plurality of A1bs may be the same or different.
    Type: Grant
    Filed: September 24, 2002
    Date of Patent: February 24, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tadashi Inaba, Masaru Takasaki, Atsushi Matsunaga, Mamoru Sakurazawa, Shinichi Ichikawa
  • Patent number: 6689553
    Abstract: A silver halide photographic emulsion that comprises silver halide grains. The emulsion was prepared in the presence of at least one halogen oxoacid salt represented by formula (I) below: M(XOn)m  (I) wherein M represents an alkali metal ion or alkaline-earth metal ion, X represents a halogen atom, n represents 2 or 3, and m represents 1 or 2. A silver halide photographic light-sensitive material that has at least one silver halide emulsion layer on a support. The material contains the above silver halide photographic emulsion.
    Type: Grant
    Filed: March 1, 2001
    Date of Patent: February 10, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Mamoru Sakurazawa, Takeshi Funakubo, Hirotomo Sasaki, Kiyoshi Morimoto
  • Publication number: 20040023171
    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 red-sensitive layer contains at least one oil former, the cyan coupler is of the formula 1
    Type: Application
    Filed: July 2, 2003
    Publication date: February 5, 2004
    Applicant: Agfa-Gevaert N.V. (Belgium)
    Inventors: Ralf Weimann, Markus Geiger, Cuong Ly, Klaus Sinzger, Beate Weber, Heinz Wiesen
  • Patent number: 6686138
    Abstract: A silver halide light sensitive motion picture photographic print element comprising a support having a front side and a back side and bearing on the front side thereof in order a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, and a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler; said element further comprising an antistatic layer containing vanadium pentoxide on either side of the support, and a raw stock keeping stabilizer compound present in at least one emulsion layer or a hydrophilic colloid layer in reactive association with at least one emulsion layer, wherein the stabilizer compound comprises Au2S or
    Type: Grant
    Filed: December 30, 2002
    Date of Patent: February 3, 2004
    Assignee: Eastman Kodak Company
    Inventor: Kathleen R. C. Gisser
  • Patent number: 6670112
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): wherein R1 represents a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R2 represents an alkyl group, a cycloalkyl group, a linear or branched unsubstituted alkenyl group having 3-14 carbon atoms, R3 represents a group capable of being substituted on the benzene ring, and m represents an integer from 0 to 4. This may be use as a light-sensitive material which can provide a stable color-image.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: December 30, 2003
    Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
  • Publication number: 20030232289
    Abstract: Disclosed is a colour photographic element containing one or more cyan dye-forming couplers, a UV absorber and a specific class of stabiliser, and an imaging process used therewith. The element exhibits improved stability.
    Type: Application
    Filed: October 11, 2002
    Publication date: December 18, 2003
    Applicant: Eastman Kodak Company
    Inventors: Danuta Gibson, Llewellyn J. Leyshon, David Clarke
  • Publication number: 20030194663
    Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon one or more layers including at least one light-sensitive silver halide emulsion layer comprising at least one coupler which undergoes a coupling reaction with an oxidized product of an aromatic primary amine developer to form a dye, wherein at a least one of the layer(s) on said support comprises at least one compound represented by the following formula (I): 1
    Type: Application
    Filed: May 25, 2000
    Publication date: October 16, 2003
    Inventors: Hiroo Takizawa, Yasuhiro Yoshioka, Masakazu Morigaki
  • Publication number: 20030186178
    Abstract: The invention relates to a photographic element comprising at least one light-sensitive silver halide emulsion layer having associated therewith in the same dispersion a certain de-aggregating compound at least one heterocyclic cyan dye-forming coupler of a specified formula and an aromatic stabilizer of a particular formula. The combination provides improved image stability.
    Type: Application
    Filed: December 4, 2002
    Publication date: October 2, 2003
    Applicant: Eastman Kodak Company
    Inventors: Danuta Gibson, David Clarke, Christopher J. Winscom, Michael W. Crawley
  • Patent number: 6613502
    Abstract: A silver halide color photographic light-sensitive material having at least one blue-sensitive emulsion layer, at least one green-sensitive emulsion layer, and at least one red-sensitive emulsion layer on a transparent support, wherein the transparent support is a plastic support having two surfaces undercoated with an undercoat solution containing at least one compound selected from the group consisting of a water-miscible organic solvent except for alcohols, a substituted phenol having a molecular weight of 200 or less, and a substituted acetic acid in which at least one hydrogen atom on a methyl group of acetic acid is substituted with a halogen atom, and at least one photosensitive emulsion layer contains a specific coupler.
    Type: Grant
    Filed: December 17, 2002
    Date of Patent: September 2, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Naoto Matsuda, Hisashi Mikoshiba