Stabilizing Patents (Class 430/372)
  • Patent number: 9620817
    Abstract: The present invention is to provide: a liquid electrolyte for batteries, which has excellent stability to lithium metals; a method for producing the liquid electrolyte; and a lithium battery comprising the liquid electrolyte. Presented is a liquid electrolyte for lithium batteries, wherein the liquid electrolyte comprises a mesoionic compound represented by the following general formula (1): wherein R1 is an aliphatic hydrocarbon group having 1 to 3 carbon atoms, and R2 is a group represented by any one of the following general formulae (2), (3) and (4): General Formula (2): —ClH2l—(OCH2)m—CnH2n+1; General Formula (3): —CxH2x—(CH2OCH2)y—CzH2z+1; and General Formula (4): —CpH2p—(C2H4OCH2)q—CrH2r+1.
    Type: Grant
    Filed: September 9, 2013
    Date of Patent: April 11, 2017
    Assignees: NAGOYA INSTITUTE OF TECHNOLOGY, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tsunehisa Hirashita, Shuki Araki, Hirofumi Nakamoto, Atsushi Shirasawa
  • Patent number: 9540531
    Abstract: This invention relates to radiation curable ink compositions comprising one or more mono-functional monomers, optionally one or more oligomers, one or more antioxidants capable to react with peroxy radicals to generate radicals to propagate polymerization, and one or more photoinitiators comprising at least an acylphosphine oxide, wherein the ratio of the antioxidants to acylphpsphine is 1:1 to 1:20 by weight. The ink composition provides tack-free surface cure without requiring nitrogen or other inert gas during curing.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: January 10, 2017
    Assignee: Electronics for Imaging, Inc.
    Inventors: Lianhui Cong, Terrill Scott Clayton
  • Patent number: 9063354
    Abstract: Thermal control devices, photonic systems and methods of stabilizing a temperature of a photonic system are provided. A thermal control device thermally coupled to a substrate includes a waveguide for receiving light, an absorption element optically coupled to the waveguide for converting the received light to heat and an optical filter. The optical filter is optically coupled to the waveguide and thermally coupled to the absorption element. An operating point of the optical filter is tuned responsive to the heat from the absorption element. When the operating point is less than a predetermined temperature, the received light is passed to the absorption element via the optical filter. When the operating point is greater than or equal to the predetermined temperature, the received light is transmitted out of the thermal control device via the optical filter, without being passed to the absorption element.
    Type: Grant
    Filed: February 7, 2012
    Date of Patent: June 23, 2015
    Assignee: Sandia Corporation
    Inventors: Peter T. Rakich, Michael R. Watts, Gregory N. Nielson
  • 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: 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: 7611829
    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: January 27, 2005
    Date of Patent: November 3, 2009
    Assignee: Fujifilm Corporation
    Inventors: Yasuaki Deguchi, Shin Soejima, Naoto Ohshima, Tatsuya Ishizaka, Katsuyuki Takada, Futoshi Yoshida, Atsushi Maruhashi, Yoshinori Morimoto, Takehisa Ohno
  • Publication number: 20080138748
    Abstract: Provided are methods of removing bisulfite material from a composition that contains a bisulfite material and an enzyme. The method includes contacting the composition with a compound containing at least one aldehyde functional group to form an aldehyde-bisulfite complex, whereby the aldehyde-bisulfite complex may be separated from the composition.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 12, 2008
    Inventors: John Brahms, James G. Masters
  • Patent number: 7223519
    Abstract: Imaging compositions and methods of using the compositions are disclosed. The imaging compositions are sensitive to low levels of energy such that upon application of the low levels of energy the compositions change color or shade. The compositions may be applied to a work piece to mark it and removed from the work piece by peeling.
    Type: Grant
    Filed: July 13, 2005
    Date of Patent: May 29, 2007
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, Corey O'Connor
  • Patent number: 7144676
    Abstract: Imaging compositions and methods of using the compositions are disclosed. The imaging compositions are sensitive to low levels of energy such that upon application of the low levels of energy the compositions change color or shade. The compositions may be applied to a work piece to mark it and removed from the work piece by peeling.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: December 5, 2006
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Robert K. Barr, Corey O'Connor
  • 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: 7112400
    Abstract: An image forming method including a step of imagewise exposing a silver halide color photographic photosensitive material having, on a support, photographic constituent layers including at least one blue sensitive silver halide emulsion layer, at least one green sensitive silver halide emulsion layer, at least one red sensitive silver halide emulsion layer, and at least one non-photosensitive hydrophilic colloid layer, a color developing step, a bleach-fixing step and a rinsing step.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: September 26, 2006
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shin Soejima, Kentaro Okazaki
  • 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: 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: 20040043340
    Abstract: A rinse-processing composition of the present invention comprises a compound represented by R—(OC2H4)n—OH, wherein R is an alkyl group containing 8 to 13 carbon atoms and n is an integer of 10 to 30, but comprises neither aldehyde compounds nor hexamethylenetetramine derivatives, and a processing method and a processing apparatus of the present invention uses such a rinse-processing composition.
    Type: Application
    Filed: August 23, 2002
    Publication date: March 4, 2004
    Inventor: Hiroyuki Seki
  • Patent number: 6660461
    Abstract: An amplified color developing composition is stabilized with a cyclicaminomethanediphosphonic acid or salt thereof alone of in combination with other stabilizing compounds. This composition also comprises a color developing agent, a redox oxidizing agent (such as hydrogen peroxide), and a hydroxylamine antioxidant for the color developing agent. The amplified color developing composition can be formulated using a two- or three-part processing kit. The composition can be used to provide images in various color photographic silver halide materials such as color photographic papers.
    Type: Grant
    Filed: November 1, 2002
    Date of Patent: December 9, 2003
    Assignee: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston, Richard R. Horn, Anthony Jarkowski
  • Publication number: 20030224300
    Abstract: A photographic processing composition for silver halide color photographic lightsensitive material, comprising at least one compound represented by the formula (I):
    Type: Application
    Filed: June 18, 2003
    Publication date: December 4, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Makoto Suzuki, Yasufumi Nakai, Yoshiharu Yabuki
  • Publication number: 20030198902
    Abstract: A photographic processing composition, containing at least one compound of formula (I) or (II):
    Type: Application
    Filed: January 24, 2003
    Publication date: October 23, 2003
    Inventors: Makoto Suzuki, Yasufimi Nakai
  • Publication number: 20030157443
    Abstract: A silver halide color photographic photosensitive material comprising, on a reflective support, at least one yellow-coloring photosensitive silver halide emulsion layer, at least one magenta-coloring photosensitive silver halide emulsion layer, at least one cyan-coloring photosensitive silver halide emulsion layer and at least one non-photosensitive, non-coloring hydrophilic colloid layer. Reflective density A(&lgr;) at a wavelength &lgr; at an unexposed portion of the material after a color development treatment is 0.08 or less for 450 nm, 0.10 or less for 550 nm, and 0.08 or less for 650 nm. Alternatively, chromaticity at the unexposed portion of the material after the color development treatment satisfies the condition: 91≦L*≦96, 0≦a*≦2.0, −9.0≦b*≦−3.0. Also provided is a process for forming an image using the silver halide color photographic photosensitive material.
    Type: Application
    Filed: May 22, 2002
    Publication date: August 21, 2003
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Toshiyuki Makuta, Shin Soejima, Hiroyuki Yoneyama
  • Patent number: 6596461
    Abstract: A compound of formula (I) wherein n is e.g. a number from 2 to 50; R5′ and R5″ are e.g. a group of formula (II); G1, G2, G3 and G4 are e.g. C1-C4akyl; R1 is e.g. hydrogen or C1-C4alkyl; R2 is e.g. methylene; R3′ is e.g. hydrogen and R3″ is e.g. hydrogen or C1-C4alkyl; R4 is e.g. C2-C8alkylene; and X is e.g. —N(R7)R8) with R7 and R8 being independently of one another hydrogen or C1-C8alkyl, is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: July 22, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Dario Lazzari, Mirko Rossi, Graziano Zagnoni, Alessandro Zedda, Valerio Borzatta, Stephen Mark Andrews
  • Publication number: 20030096201
    Abstract: The invention relates to a method for processing an exposed color reversal photographic film. This method comprises the step of circulating the exposed film in a fixing bath, in and then a final washing zone comprises at least one washing bath. Each washing bath of this zone comprising a buffer prepared from a weak acid and its conjugated base, with a conjugated base concentration more than 1 g/l, said buffer being chosen to maintain the pH between 4.5 and 6. The method comprises then the step of collecting the contents of the washing baths of this zone and the passage of said contents through a nanofiltration device comprising a membrane, whose cut-off threshold is more than the molar mass of the weak acid and the conjugated base making up the buffer, to give a permeate that is recycled in the final washing zone.
    Type: Application
    Filed: July 18, 2002
    Publication date: May 22, 2003
    Applicant: Eastman Kodak Company
    Inventor: Didier J. Martin
  • Publication number: 20030077547
    Abstract: The present invention relates to a material and a method for treating of photographic effluents in order to eliminate micro-organisms and pollutant by-products so as to control bacterial growth and thereby obtain effluents that comply with regulatory requirements. The method for preparing an oxidizing material according to the invention comprises the dispersion in colloidal form of a metal or metal compound in an aqueous solution of an inorganic aluminosilicate polymer, said aluminosilicate being able to form an inorganic gel, and said metal or metal compound being able to cause the oxidation of oxidizable products and (or) micro-organisms to be eliminated, followed by the addition of a base to cause said aluminosilicate to gel. The metal is preferably silver in a powder form that is able to form a colloid when it is dispersed. The oxidizing material of the invention is efficient especially for the treatment of photographic baths, in particular wash baths placed after the fixing step.
    Type: Application
    Filed: May 31, 2002
    Publication date: April 24, 2003
    Applicant: Eastman Kodak Company
    Inventors: Danielle M. Wettling, Olivier J. Poncelet
  • Publication number: 20030031963
    Abstract: The invention provides an opaque reflective photographic material eg paper whose non image side is coated with a mordant in an amount to absorb during washing of the photographic material dyes that would contribute to staining of the final image.
    Type: Application
    Filed: May 21, 2002
    Publication date: February 13, 2003
    Applicant: Eastman Kodak Company
    Inventor: Henry H. Adam
  • Patent number: 6506545
    Abstract: A process for removing stain in a photographic material is described which process comprises incorporation of at least one compound of formula (I) wherein X is O or NH; n is 1 or 2, p is 0, 1 or 2, M is hydrogen, an alkali metal atom, ammonium or a cation formed from an amine; each R1, independently, is an amimoacid residue from which a hydrogen atom on the amino group has been removed; each R2, independendy, is hydrogen, C1-C8alkyl, C1-C8alkoxy, halogen, cyano, COOR, wherein R is hydrogen or C1-C3alky1, CONH—R in which R has its previous significance, SO2NH—R in which R has its previous significance, NH—COR in which R has its previous significance, or SO3M, wherein M has its previous significance, or, if n is 1, R2 can also be CO—R3 in which R3 is C1-C3alkyl or phenyl, in that photographic material.
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: January 14, 2003
    Assignee: Ciba Specialty Chemicals Corporation
    Inventors: Christophe Bulliard, Georges Metzger, Sonia Megert
  • Patent number: 6497997
    Abstract: A method of providing an image in an imagewise exposed photographic silver halide material comprising at least one silver halide emulsion layer, which method comprises developing the silver halide and fixing the remaining silver halide by contacting it with a molten composition comprising a silver halide complexing agent which is present in sufficient amount to render the silver halide substantially clear. The photographic silver halide material may comprise at least one silver halide emulsion layer on a support wherein the material also comprises a layer of a composition comprising a silver halide complexing agent which is liquefiable by heat and which, when molten, is in reactive association with the silver halide. The image formed may be scanned to produce an electronic rendition of the image.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: December 24, 2002
    Assignee: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Patent number: 6458520
    Abstract: A color image formation method is disclosed, comprising developing a photographed silver halide color photographic light-sensitive material, photoelectrically reading the image information obtained to convert it into a digital image information, and taking out the digital image information to a printer, wherein the development processing is performed under the condition satisfying at least one of the following conditions (1) to (4): (1) the color developing agent concentration in the color developer is from 0.02 to 0.2 mol/l; (2) the bromide ion concentration in the color developer is from 0.015 to 0.1 mol/l; (3) the color development time is from 45 seconds to 2 minutes; and (4) the color development temperature is from 40 to 55° C.
    Type: Grant
    Filed: July 28, 1998
    Date of Patent: October 1, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Hideaki Nomura
  • Patent number: 6444412
    Abstract: The invention relates to a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith one or more dye-forming couplers and a stabilizer compound of formula (I): wherein R1 and R2 are independently selected from hydrogen or an unsubstituted or substituted alkyl, aryl, alkoxy, aryloxy or amino group or may combine to complete a 5-10 membered heterocyclic ring which may contain in addition to the silicon atom one or more heteroatoms selected from nitrogen, oxygen and sulfur, which ring is unsubstituted or substituted; each Z independently represents the atoms necessary to complete a substituted or unsubstituted arene or heteroaromatic ring system; X is a single bond or a linking group having a single atom which connects the arene rings or heteroaromatic ring systems; or X forms, together with substituents ortho to X on the arene rings or heteroaromatic ring systems, a fused unsubstituted or substituted 5-, 6- or 7-membered ring, which may cont
    Type: Grant
    Filed: August 21, 2001
    Date of Patent: September 3, 2002
    Assignee: Eastman Kodak Company
    Inventors: David Clarke, Llewellyn J. Leyshon, Christopher P. Moore
  • Publication number: 20020009678
    Abstract: A method of providing an image in an imagewise exposed photographic silver halide material comprising at least one silver halide emulsion layer, which method comprises developing the silver halide and fixing the remaining silver halide by contacting it with a molten composition comprising a silver halide complexing agent which is present in sufficient amount to render the silver halide substantially clear. The photographic silver halide material may comprise at least one silver halide emulsion layer on a support wherein the material also comprises a layer of a composition comprising a silver halide complexing agent which is liquefiable by heat and which, when molten, is in reactive association with the silver halide. The image formed may be scanned to produce an electronic rendition of the image.
    Type: Application
    Filed: June 5, 2001
    Publication date: January 24, 2002
    Applicant: Eastman Kodak Company
    Inventor: Michael J. Simons
  • Publication number: 20020004183
    Abstract: A color image formation method is disclosed, comprising developing a photographed silver halide color photographic light-sensitive material, photoelectrically reading the image information obtained to convert it into a digital image information, and taking out the digital image information to a printer, wherein the development processing is performed under the condition satisfying at least one of the following conditions (1) to (4):
    Type: Application
    Filed: July 28, 1998
    Publication date: January 10, 2002
    Inventors: TAKATOSHI ISHIKAWA, HIDEAKI NOMURA
  • Patent number: 6200741
    Abstract: The present invention provides a photographic element comprising a support bearing a light-sensitive silver halide emulsion layer in association with an image dye-forming coupler and having associated therewith a compound of general formula wherein R1 is an unsubstituted or substituted alkyl group, aryl group or 5-10 membered heterocyclic ring group containing one or more heteroatoms selected from N, O and S; each R2 is independently selected from hydrogen, halogen, and substituted or unsubstituted alkyl, aryl, alkyl- or aryl-sulfamoyl, alkyl- or aryl-sulfonamido, alkyl- or aryl-carbamoyl, alkyl- or aryl-carbonamido, alkenyloxy or 5-10 membered heterocyclic ring group containing one or more heteroatoms selected from N, O and S; each Y is independently selected from the groups consisting of —NHSO2 and —SO2NH; wherein the hydrogen therein has a pKa value of less than 9; n is an integer from 1 to 20; x is an integer from 1 to 6 and wherein the compound is ballasted.
    Type: Grant
    Filed: November 19, 1999
    Date of Patent: March 13, 2001
    Assignee: Eastman Kodak Company
    Inventors: Paul L. Stanley, John D. Goddard
  • Patent number: 6180327
    Abstract: A conditioning solution or bleach accelerating solution can be used to process color photographic films, especially color reversal films, to minimize magenta dye fade. This solution contains an antimicrobial composition that consists essentially of a polyaminocarboxylic acid or salt thereof as the sole antimicrobial agent. This agent is present in an amount of less than about 3 g/l.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: January 30, 2001
    Assignee: Eastman Kodak Company
    Inventors: Hugh Gerald McGuckin, John Stuart Badger, Mary Ellen Craver
  • Patent number: 6153364
    Abstract: Specific aromatic compounds having an extended planar .pi. system are useful as spectral sensitizing dye stain reducing agents in photographic processing compositions and methods for providing color or black-and-white images in various photographic silver halide materials. These compounds are devoid of diaminostilbene fragments or fused triazole nuclei. They are particularly useful in fixing and bleaching compositions in the processing of color photographic silver halide materials, but can be used in various other processing compositions.
    Type: Grant
    Filed: December 16, 1999
    Date of Patent: November 28, 2000
    Assignee: Eastman Kodak Company
    Inventors: Ramanuj Goswami, Harry J. Price, Mary E. Craver
  • Patent number: 6071686
    Abstract: Disclosed is a silver halide photographic element comprising a support bearing a light sensitive silver halide emulsion layer having associated therewith a cyclic azole dye forming coupler and a stabilizer combination comprising:i) a compound having the following Formula I: ##STR1## and ii) a compound having the following Formula S: ##STR2## wherein R.sub.3 is an alkyl, alkenyl, or aryl group; R.sub.5 is an alkyl group; and R.sub.4 and R.sub.6 are substituents; m is an integer of 0 to 5; and n is an integer of 0 to 4.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: June 6, 2000
    Assignee: Eastman Kodak Company
    Inventors: Stanley W. Cowan, Albert J. Mura
  • Patent number: 6040123
    Abstract: A final rinsing solution designed for the photographic processing of silver halide photographic products that comprises an anionic surfactant and a non-ionic surfactant the solution had a static surface tension less than or equal to 32 mN/m and a dynamic surface tension less than 50 mN/m. The solution is used in a method for processing silver halide photographic products such as color reversal products.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: March 21, 2000
    Assignee: Eastman Kodak Company
    Inventors: Cecile A. Maudhuit, Jacques Bulou
  • Patent number: 6037113
    Abstract: Disclosed is a photographic element comprising a light sensitive silver halide emulsion layer having in association therewith at least one dye- forming coupler of Formula (1a): ##STR1## wherein: R.sub.1 is an alpha-branched alkyl group with greater than 10 carbon atoms;R.sub.5, R.sub.6, R.sub.7, and R.sub.8 are each independently a hydrogen atom or a substituent;Z is a hydrogen atom or a group which can be split off by the reaction of the coupler with an oxidized color developing agent.The element exhibits improved dye light stability.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: March 14, 2000
    Assignee: Eastman Kodak Company
    Inventors: Leslie Shuttleworth, Rakesh Jain, John W. Harder
  • Patent number: 6030760
    Abstract: The disclosure describes a photographic element comprising a support on which is coated at least one green-sensitized silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler of Formula (1a) and at least one compound of Formula (2) ##STR1## wherein: R.sub.1 is an alkyl group;R.sub.5, R.sub.6, R.sub.7, and R.sub.8 each independently represent a hydrogen atom or a substituent;Z is a hydrogen atom or a group that can be split off by the reaction of the coupler with an oxidized color-developing agent; ##STR2## wherein: Z.sub.1 and Z.sub.2 are alkylene groups of 1-3 carbon atoms;R is an aryl or heterocyclic group, andq is 1 or 2.
    Type: Grant
    Filed: August 14, 1998
    Date of Patent: February 29, 2000
    Assignee: Eastman Kodak Company
    Inventors: Leslie Shuttleworth, Michael W. Crawley, Stanley W. Cowan
  • Patent number: 6022674
    Abstract: Color photographic films are processed using a final dye image stabilizing solution containing certain aromatic or heterocyclic aldehydes, acetals or hemiacetals, and a mixture of specific surfactants. One surfactant is a nonionic polyethoxylated, nonfluorinated compound, or an anionic non-fluorinated sulfate or sulfonate, and the second surfactant is a nonionic or anionic fluorinated compound. This processing solution provides processed films, with or without a magnetic backing layer, that are free of scum or other residues, non-tacky, and resistant to abrasion and fingerprinting. The stabilizing solution can be provided in concentrated form, particularly when a glycol is included. The color films can be more rapidly processed, for example, within 60 seconds for the stabilizing step.
    Type: Grant
    Filed: August 18, 1998
    Date of Patent: February 8, 2000
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, John S. Badger, Brad M. Boersen, Richard R. Horn
  • Patent number: 6015653
    Abstract: A method for processing a transparent silver halide color photographic material is disclosed. The transparent silver halide photographic light-sensitive material is treated with a processing solution containing a compound represented by Formula (I).Formula I ##STR1## wherein Q is a group of atoms necessary for forming a nitrogen-containing heterocyclic ring (including one condensed with a 5- or 6-member unsaturated ring), R.sub.11 is a hydrogen atom, an alkali metal atom, ##STR2## or an alkyl group, Q' is a synonym for Q.sub.1. After the treating, a ratio (E/G) of a light absorbance E of unexposed area of the light-sensitive material at 650 nm to an amount of silver G mg/m.sup.2 remaining in the light-sensitive material is within the range of from 3.0.times.10.sup.-4 to 1.5.times.10.sup.-3 in the silver halide photogrpahic light-sensitive material,A transparent silver halide color photographic material is also disclosed.
    Type: Grant
    Filed: April 26, 1999
    Date of Patent: January 18, 2000
    Assignee: Konica Corporation
    Inventors: Manabu Nakahanada, Wataru Satake
  • Patent number: 6010819
    Abstract: A method for improving light fastness of an image, which comprises releasing or forming an image forming dye or a precursor thereof corresponding or counter-corresponding to silver development and allowing an image formed by transferring said image forming dye or precursor thereof to coexist with a compound represented by general formula (I) in an image forming material ##STR1## The symbols in formula (I) are defined in the description. Also disclosed is an image forming material for use in the method.
    Type: Grant
    Filed: August 24, 1998
    Date of Patent: January 4, 2000
    Assignee: Fuji Photo Film., Ltd.
    Inventors: Hiroshi Arakatsu, Nobuo Seto, Yoshisada Nakamura, Hironori Hiyoshi, Hiroyuki Watanabe, Takayoshi Kamio
  • Patent number: 6004731
    Abstract: A method for processing a silver halide color photographic light-sensitive material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, the method comprising the steps of: exposing the light-sensitive material; color developing the light-sensitive material; and desilvering the light-sensitive material, the desilvering step comprising processing the light-sensitive material with a desilvering processing solution containing at least one compound represented by formula (I) or a salt thereof: ##STR1## wherein Z represents --NR.sub.5 (R.sub.6) or --OR.sub.7, R represents an alkylene group, n represents 0 or 1, R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each independently represents a hydrogen atom, an aliphatic group or an aromatic group, and R.sub.7 represents an aliphatic group or an aromatic group, provided that any two of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 may be combined with each other to form a ring, that the total carbon number of R.sub.5 and R.
    Type: Grant
    Filed: May 6, 1996
    Date of Patent: December 21, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Hayashi, Tetsuro Kojima, Shinichi Ichikawa
  • Patent number: 5998108
    Abstract: This invention relates to a process for the treatment of a seasoned stabilization bath containing at least 2 g/l of thiosulfate carried over from the fixing or bleach-fixing bath wherein said stabilization bath is treated by means of a nanofiltration system to yield a photographically useful permeate. The process in this invention allows the volume of photographic effluents to be significantly reduced.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: December 7, 1999
    Assignee: Eastman Kodak Company
    Inventor: Didier J. Martin
  • Patent number: 5968715
    Abstract: A method for processing a silver halide photographic light-sensitive material is disclosed.
    Type: Grant
    Filed: July 16, 1997
    Date of Patent: October 19, 1999
    Assignee: Konica Corporation
    Inventors: Yutaka Ueda, Masao Ishikawa, Satoru Kuse
  • Patent number: 5968716
    Abstract: Color photographic films are processed using a final dye image stabilizing solution containing certain aromatic or heterocyclic aldehydes, acetals or hemiacetals, and a mixture of specific surfactants. One surfactant is a nonionic polyethoxylated, nonfluorinated compound, or an anionic non-fluorinated sulfate or sulfonate, and the second surfactant is a nonionic or anionic fluorinated compound. This processing solution provides processed films, with or without a magnetic backing layer, that are free of scum or other residues, non-tacky, and resistant to abrasion and fingerprinting. The stabilizing solution can be provided in concentrated form, particularly when a glycol is included.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: October 19, 1999
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, John S. Badger, Brad M. Boersen, Richard R. Horn
  • Patent number: 5958663
    Abstract: The invention relates to a colour-photographic recording material which comprises a magenta coupler and, as stabilizer, at least one compound of the formula ##STR1## where the radicals are as defined in claim 1, and to the novel stabilizers.
    Type: Grant
    Filed: March 18, 1998
    Date of Patent: September 28, 1999
    Assignee: Ciba Specialty Chemicals Corporation
    Inventor: Suruliappa Jeganathan
  • Patent number: 5952158
    Abstract: Color photographic materials are processed using a final rinse solution containing a water-soluble or water-dispersible glycol, and a mixture of specific surfactants. One surfactant is a nonionic polyethoxylated, nonfluorinated compound, or an anionic non-fluorinated sulfate or sulfonate, and the second surfactant is a nonionic or anionic fluorinated compound. This solution provides processed materials, with or without a magnetic backing layer, that are free of scum or other residues, non-tacky, and resistant to abrasion and fingerprinting. The final rinse solution can be provided in concentrated form, particularly because the glycol is included.
    Type: Grant
    Filed: February 4, 1998
    Date of Patent: September 14, 1999
    Assignee: Eastman Kodak Company
    Inventors: Hugh G. McGuckin, John S. Badger, Brad M. Boersen
  • Patent number: 5869224
    Abstract: In reversal processing, washing between the first development and the reversal bath can be avoided without any loss of photographic quality if the reversal bath is operated in countercurrent over at least two stages and hydroquinone sulfonic acid is used as the first developer.
    Type: Grant
    Filed: May 12, 1993
    Date of Patent: February 9, 1999
    Assignee: Agfa Gevaert Aktiengesellschaft
    Inventor: Herbert Mitzinger
  • Patent number: 5856073
    Abstract: Silver halide photographic color films can be effectively stabilized using a chemical stabilizing kit of two concentrated chemical solutions that are mixed and diluted at least 5:1 when used. Each concentrated chemical solution contains some of the necessary chemicals for the processing solution, but keeping them individually packaged prior to use prevents biocide instability and other problems when all of the chemical components are mixed in concentrated form. One concentrated chemical solution includes hexamethylenetetramine and an alcoholamine such as diethanolamine. The other concentrated chemical solution includes the biocide(s) and one or more surfactants.
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: January 5, 1999
    Assignee: Eastman Kodak Company
    Inventors: Jean M. Buongiorne, Stephen J. Waffle, Hugh G. McGuckin, John S. Badger
  • Patent number: 5856072
    Abstract: A color photographic element which comprises a light sensitive silver halide emulsion layer and a non-light sensitive interlayer containing a ballasted 5-carbamoyl-1,3-dihydroxybenzene compound. The element exhibits an improved ability to prevent oxidized developer from diffusing away from the imaging layer in which it formed and into other color records where it can form the wrong color dye.
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: January 5, 1999
    Assignee: Eastman Kodak Company
    Inventors: Ronald E. Leone, Stephen P. Singer
  • Patent number: 5856520
    Abstract: A novel substituted benzenedithiol metal complex represented by the general formula (1) is provided. The substituted benzenedithiol metal complex is useful as a singlet oxygen quencher and as an optical data recording medium per se. ##STR1## wherein M is a transition metal; A.sup.+ is a quaternary ammonium group; and R is an organic group selected from the group consisting of organic groups represented by the formulae (i), (ii), (iii) and (iv): ##STR2## (wherein R.sup.1 is an alkyl group having 1 to 4 carbon atoms), ##STR3## (wherein n is 3, 4 or 5), ##STR4## (wherein R.sup.2 is one of a hydrogen atom and a substitutent having 1 to 4 carbon atoms).
    Type: Grant
    Filed: October 20, 1997
    Date of Patent: January 5, 1999
    Assignee: Sumitomo Seika Chemicals Co., Ltd.
    Inventors: Kazuyoshi Hirako, Satoshi Kimura, Michio Suzuki
  • Patent number: 5851741
    Abstract: The present invention provides a method for forming color images by processing in a short period of time color photographic materials containing at least one oil-soluble coupler with a color developer which does not substantially contain benzyl alcohol, wherein a silver halide color photographic material having at least one silver halide emulsion layer on a reflective support, the emulsion layer containing a dispersion of oleophilic fine grains having a mean grain size of 0.25 .mu.m or less, which contain a coupler capable of forming a dye after having been coupled with an oxidation product of an aromatic primary amine developing agent, and at least one high boiling organic solvent having a dielectric constant of 4.00 or more (25.degree. C., 10 KHz). The photographic material is imagewise exposed and then subjected to development with a color developer which contains an aromatic primary amine developing agent but does not substantially contain benzyl alcohol for 2 minutes and 30 seconds or less.
    Type: Grant
    Filed: September 6, 1994
    Date of Patent: December 22, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Osamu Takahashi, Hideaki Naruse, Nobuo Sakai
  • Patent number: 5834165
    Abstract: A processing method of a silver halide photographic material by using an automatic processor is disclosed, comprising the steps of developing an exposed photographic material with a developing solution in a developing tank, fixing with a fixing solution in a fixing tank and washing with a washing water or a rinsing solution in a washing tank, wherein the washing water or rinsing solution has the number of funguses of 100 or less per ml.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: November 10, 1998
    Assignee: Konica Corporation
    Inventor: Kazuhiko Hirabayashi