And Coupler Patents (Class 430/376)
  • Patent number: 10711106
    Abstract: The present invention features linear and three-dimensional supramolecular materials self-assembled from block co-polymers comprising oligo(ethylene sulfide) (OES). The block copolymers assemble into fibrils, micelles, or matrices. The fibrillar materials are sensitive to oxidation, which leads to decreased OES block hydrophobicity and crystallinity, and increased water solubility of the polymer constituents. Molecular loading options, coupled with oxidative sensitivity, allow implantable or injectable fibrillar suspensions or cross-linked three-dimensional matrices to demonstrate significant biomedical potential, especially in the context of extracellular and intracellular molecular delivery and applications related to infection and disease.
    Type: Grant
    Filed: July 24, 2014
    Date of Patent: July 14, 2020
    Assignee: The University of Chicago
    Inventors: Jeffrey A. Hubbell, Carrie E. Brubaker, Diana Velluto
  • Patent number: 8546070
    Abstract: A color photographic element has a reflective support and a blue light sensitive color record, a green light sensitive color record, and a red light sensitive color record can be used to provide color photographic prints. The element also has a non-light sensitive interlayer between the green light and red light sensitive color records. This interlayer comprises a hydrophilic colloid and an acrylic latex polymer having a glass transition temperature (Tg) of less than 0° C. The presence of this acrylic latex polymer in the interlayer reduces the formation of a cyan line defect when the color photographic print is folded or creased, such as in photobooks.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: October 1, 2013
    Assignee: Eastman Kodak Company
    Inventors: Jess B. Hendricks, III, Paul L. Zengerle, Andrew D. Church, Darrell B. Austin
  • Patent number: 8357485
    Abstract: A multi-color photographic silver halide element has a total gelatin level on the imaging side of the support is less than 9000 mg/m2, and bulk gelatin-to-junk weight ratio for all of the light sensitive layers on the imaging side of the support is greater than 1.5. This weight ratio is defined by: Bulk gelatin-to-junk ratio=[(Bgel×Bgel/junk)+(Rgel×Rgel/junk)+(Ggel+Ggel/junk)]÷(Bgel+Rgel+Ggel) wherein Bgel is the total gelatin level for blue light sensitive layers, Bgel/junk is the gelatin-to-junk ratio for blue light sensitive layers, Rgel is the total gelatin level for red light sensitive layers, Rgel/junk is the gelatin-to-junk ratio for red light sensitive layers, Ggel is the total gelatin level for green light sensitive layers, and Ggel/junk is the gelatin-to-junk ratio for green light sensitive layers.
    Type: Grant
    Filed: October 25, 2010
    Date of Patent: January 22, 2013
    Assignee: Eastman Kodak Company
    Inventors: Christopher J. Haller, Daniel R. May, Paul L. Zengerle
  • 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
  • Publication number: 20080026333
    Abstract: A silver halide photosensitive material having at least one blue-sensitive layer, at least one green-sensitive layer, and at least one red-sensitive layer, on a transparent support, wherein at least one of the green-sensitive layers contains a coupler represented by general formula (I) or general formula (Z), and all of the green-sensitive layers contain silver halide emulsion having an average equivalent-spherical diameter of 0.
    Type: Application
    Filed: July 27, 2007
    Publication date: January 31, 2008
    Inventors: Junichiro Hosokawa, Koichi Yokota, Masaaki Miki, Yoichi Hosoya, Ryoji Nishimura
  • Patent number: 6824964
    Abstract: The invention provides an image forming method in which a silver halide color photosensitive material has a back layer on an opposite side to the silver halide emulsion layers. The back layer contains colloidal silica and has a surface resistance of 1.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: November 30, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tatsuya Ishizaka, Terukazu Yanagi, Atsushi Kato
  • Patent number: 6706469
    Abstract: A silver halide emulsion which comprises silver halide grains having a silver chloride content of at least 90 mole %, wherein tabular grains satisfying the following conditions (1) and (2) account for at least 70% of the total projected area of all the silver halide grains present: (1) the grain has {111} major faces, an aspect ratio of 2 or more and a thickness of 0.30 &mgr;m or less; and (2) a ratio (b/a) of the grain thickness (b) to the longest distance (a) between at least two parallel twin planes of the tabular grain is in the following range: 1.5≦(b/a)<5.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: March 16, 2004
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Katsuyuki Takada
  • Publication number: 20040038157
    Abstract: A color image forming method that includes subjecting a silver halide color photosensitive material to an exposure, and then processing it with a processing solution, wherein at least one silver halide emulsion in the silver halide layers has silver halide grains of AgClBr, AgCeI, or AgClIBr grains, having a AgCl content of 95 mol % or more, and having at least one region where a AgBr and/or AgI content is higher than the other region; the exposure is performed based on digital image data for area modulation; and the processing solution contains at least one compound represented by formula (I) or (II): 1
    Type: Application
    Filed: March 21, 2003
    Publication date: February 26, 2004
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Kentaro Okazaki, Takuya Yokokawa, Yasufumi Nakai
  • Publication number: 20040023135
    Abstract: The invention relates to a photographic article comprising a base material carrying at least one layer comprising a photographic image formed by combination of dyes formed from couplers wherein areas of said photo image are colored without dyes formed by couplers.
    Type: Application
    Filed: June 20, 2003
    Publication date: February 5, 2004
    Inventors: William T. Rochford, Robert P. Bourdelais, Mridula Nair
  • Publication number: 20030211408
    Abstract: The invention relates to an apparatus for thermal development having a receiver for receiving an imagewise exposed thermal film, an accumulator for gathering the film, a drive for advancing the film from the receiver to the accumulator, a heater located between the receiver and the accumulator for developing the film, a compound image scanner for scanning the film after it has been thermally developed, the scanner having a first light source and a first sensor placed for forming a first electronic record of the image formed on the developed film by reflection, a second light source and a second sensor placed for forming a second electronic record of the image by an opposing reflection, and a third sensor and a third light source placed for forming a third electronic record of the image formed by transmission, and a lighttight container for the receiver and the heater.
    Type: Application
    Filed: May 21, 2003
    Publication date: November 13, 2003
    Inventors: Richard P. Szajewski, Mark E. Irving
  • Publication number: 20030143479
    Abstract: A composition includes (A) an alkali-soluble resin having Mw of 1500 to 10000, (B) a quinonediazide ester of, for example, the following formula, and (C) a phenolic compound containing an acid-decomposable group. When a resin film 1 &mgr;m thick is prepared from the alkali-soluble resin (A), the resin film is completely dissolved in 2.38% by weight tetramethylammonium hydroxide aqueous solution at 23° C. within ten seconds.
    Type: Application
    Filed: November 15, 2002
    Publication date: July 31, 2003
    Applicant: TOKYO OHKA KOGYO CO., LTD.
    Inventors: Akira Katano, Yusuke Nakagawa, Shinichi Kono, Kousuke Doi
  • Publication number: 20030129507
    Abstract: An image information recording method, comprising the steps of: (a) imagewise exposing to light a silver halide color photographic light-sensitive material comprising a support having thereon a light-sensitive layer containing a silver halide and a color coupler; (b) subjecting the photographic light-sensitive material to color development so as to obtain an image in the photographic light-sensitive material; (c) converting the image in the photographic light-sensitive material to electric image information using a scanner comprising a light source part and a light receiving part while at least 80% of the developed silver and the silver halide remains in the photographic light-sensitive material; and (d) recording the electric information on a recording medium, wherein, the step (c) is carried out with the scanner that exhibits a light diffusion coefficient of at least 0.8.
    Type: Application
    Filed: August 26, 2002
    Publication date: July 10, 2003
    Inventors: Kouji Tashiro, Hiroaki Takano
  • Patent number: 6528243
    Abstract: A silver halide color photographic light-sensitive material has a support provided thereon a photographic constitutional layer including at least one photographic light-sensitive layer that contains a light-sensitive silver halide, an organosilver salt having a nitrogen-containing heterocycle, a compound capable of forming a dye by coupling reaction with an oxidized developing agent, and a binder, wherein the light-sensitive layer contains: (A) as the silver halide, a silver halide emulsion composed of tabular silver halide grains having a main face made up of a (111) plane, an average diameter of an equivalent circle of at least 0.70 &mgr;m, and an average thickness of less than 0.20 &mgr;m; and (B) as the organosilver salt, a compound in which a hydrogen on a 5- or 6-membered nitrogen-containing heterocycle having at least one —NH— group is replaced with Ag.
    Type: Grant
    Filed: October 25, 2001
    Date of Patent: March 4, 2003
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tomoyuki Koide, Toshio Kawagishi
  • Patent number: 6528241
    Abstract: A light-sensitive silver-halide color photographic element comprising a multifunctional coupler enabling formation of an infrared dye on development, wherein the multifunctional coupler has the property that it is capable of forming a distinctly colored cyan dye with an oxidized form of the developer 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine.
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: March 4, 2003
    Assignee: Eastman Kodak Company
    Inventor: Richard P. Szajewski
  • Publication number: 20020177084
    Abstract: The present invention relates to a silver halide color photographic light-sensitive material wherein at least one of light-sensitive silver halide emulsion layers includes a silver halide emulsion having a silver chloride content of at least 95 mol % and a silver iodide content of 0.05 mol % to 0.75 mol % and/or a silver bromide content of 0.05 mol % to 4.
    Type: Application
    Filed: February 26, 2002
    Publication date: November 28, 2002
    Applicant: FUJI PHOTO FILM CO., LTD.
    Inventors: Atsushi Matsunaga, Tadashi Inaba, Shinichi Ichikawa
  • Patent number: 6455235
    Abstract: A photographic processing element is disclosed, comprising a color developing agent or its precursor. The element further comprises a base or its precursor. An image forming method is also disclosed, comprising superposing a processing element comprising a color developing agent or its precursor on an exposed silver halide photographic material to perform development of the photographic material to form an image.
    Type: Grant
    Filed: December 8, 2000
    Date of Patent: September 24, 2002
    Assignee: Konica Corporation
    Inventors: Noriyuki Kokeguchi, Hiromichi Mizukami, Yoshihiko Suda
  • Publication number: 20020045139
    Abstract: A silver halide emulsion which comprises silver halide grains having a silver chloride content of at least 90 mole %, wherein tabular grains satisfying the following conditions (1) and (2) account for at least 70 % of the total projected area of all the silver halide grains present: (1) the grain has {111} major faces, an aspect ratio of 2 or more and a thickness of 0.
    Type: Application
    Filed: March 29, 2001
    Publication date: April 18, 2002
    Inventor: Katsuyuki Takada
  • Patent number: 6242609
    Abstract: A method for manufacturing a color coupler used in a silver halide photographic light-sensitive material using an ammonium trihalide. Said method for manufacturing the color coupler comprising the following step: a step for halogenating a coupling position of a four equivalent coupler using a halogenating agent, wherein said halogenating agent is said ammonium trihalide.
    Type: Grant
    Filed: April 7, 1999
    Date of Patent: June 5, 2001
    Assignee: Konica Corporation
    Inventor: Fumio Ishii
  • Patent number: 6197489
    Abstract: Disclosed is a color photographic element comprising at least four imaging layers including: a first light sensitive silver halide imaging layer having associated therewith a cyan image dye-forming coupler; a second light sensitive silver halide imaging layer having associated therewith a magenta image dye-forming coupler; a third light sensitive silver halide imaging layer having associated therewith a yellow image dye-forming coupler; and a fourth light sensitive silver halide imaging layer having associated therewith a fourth image dye-forming coupler for which the normalized spectral transmission density distribution curve of the dye formed by the fourth image dye-forming coupler upon reaction with color developer has a CIELAB hue angle, hab, from 225 to 310°. The element provides improved color gamut.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: March 6, 2001
    Assignee: Eastman Kodak Company
    Inventors: James L. Edwards, William J. Begley
  • Patent number: 6159674
    Abstract: Disclosed is a color photographic element comprising at least four imaging layers including:a first light sensitive silver halide imaging layer having associated therewith a cyan image dye-forming coupler;a second light sensitive silver halide imaging layer having associated therewith a magenta image dye-forming coupler;a third light sensitive silver halide imaging layer having associated therewith a yellow image dye-forming coupler; anda fourth light sensitive silver halide imaging layer having associated therewith a fourth image dye-forming coupler for which the normalized spectral transmission density distribution curve of the dye formed by the fourth image dye-forming coupler upon reaction with color developer has a CIELAB hue angle, h.sub.ab, of from not less than 355.degree. to not more than 75.degree.. The element provides improved color gamut.
    Type: Grant
    Filed: December 28, 1999
    Date of Patent: December 12, 2000
    Assignee: Eastman Kodak Company
    Inventor: James L. Edwards
  • Patent number: 6080532
    Abstract: The invention relates to a photographic element comprising a transparent polymer sheet, at least one image layer on the topside and one image layer on the bottom side wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said photographic element has a spectral transmission of at least 90% and a reflection density less than 10%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: June 27, 2000
    Assignee: Eastman Kodak Company
    Inventors: Alphonse D. Camp, Peter T. Aylward, Robert P. Bourdelais
  • Patent number: 6063552
    Abstract: The invention relates to a photographic element comprising a transparent polymer sheet, at least one layer of biaxially oriented polyolefin sheet and at least one image layer wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said biaxially oriented polyolefin sheet has a spectral transmission of at least 90% and a reflection density less than 10%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: May 16, 2000
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Alphonse D. Camp, Peter T. Aylward
  • Patent number: 6033832
    Abstract: A process for the production of a photographic image, in particular an ID card, using a color photographic silver halide material on a reflective support having a zone I in which information is recorded in the form of a colored image and a zone II in which data readable by infra-red light are recorded, comprising the following processing steps:a) exposure,b) development with a color developer,c) treatment with H.sub.2 O.sub.2 or a compound releasing H.sub.2 O.sub.2,d) fixing without prior or concomitant bleaching,e) washing or stabilizing andf) drying,in which steps (b) and (c) may be combined to a single step, results in a clear color image as well as a silver image which is reliably legible under IR light if steps (a) and (b) are carried out in such a manner that the silver maximum density in zone II after processing is at least 0.35, preferably not less than 0.5, measured under reflection at 850 nm, and the silver maximum density in zone I after processing is at most 0.
    Type: Grant
    Filed: July 20, 1992
    Date of Patent: March 7, 2000
    Assignee: Agfa-Gevaert N.V.
    Inventor: Kaspar Wingender
  • Patent number: 6030756
    Abstract: The invention relates to an photographic element comprising a transparent polymer sheet, at least one layer of biaxially oriented polyolefin sheet and at least one image layer, wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons said biaxially oriented polyolefin sheet has a spectral transmission between 35% and 90%, said biaxially oriented polyolefin sheet has a reflection density less than 65%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: February 29, 2000
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Peter T. Aylward, Alphonse D. Camp, Michael R. Roberts
  • Patent number: 6017686
    Abstract: The invention relates to an photographic element comprising a paper base, one layer of biaxially oriented polyolefin sheet and at least one image layer wherein said paper base sheet has a basis weight of between 40 and 120 g/m.sup.2, and said biaxially oriented polyolefin sheet has a spectral transmission of at least 40% and a reflection density less than 60%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: January 25, 2000
    Assignee: Eastman Kodak Company
    Inventors: Peter T. Aylward, Robert P. Bourdelais, Alphonse D. Camp
  • Patent number: 6017685
    Abstract: The invention relates to a photographic element comprising a transparent polymer sheet, a biaxially oriented polyolefin sheet laminated to said transparent polymer sheet, one image layer coated on the top of said biaxially oriented polyolefin sheet and one image layer coated on the bottom of said transparent polymer sheet wherein said polymer sheet has a stiffness of between 20 and 100 millinewtons, and said biaxially oriented polyolefin sheet has a spectral transmission of at least 40% and a reflection density less than 60%.
    Type: Grant
    Filed: September 17, 1998
    Date of Patent: January 25, 2000
    Assignee: Eastman Kodak Company
    Inventors: Robert P. Bourdelais, Alphonse D. Camp, Peter T. Aylward
  • Patent number: 6013420
    Abstract: A chromogenic process for the production of color images using, a color photographic recording material with at least one light-sensitive silver halide emulsion layer to which are assigned a thermosolvent, a color coupler and a color developer compound, and optionally further non light-sensitive layers, by exposure and development in an aqueous alkaline treatment bath (activator bath), characterised by the following features (a) and (b):(a) the color developer compound is assigned to the silver halide emulsion layer in the form of an inactive precursor compound corresponding to formula I (capped color developer compound): ##STR1## wherein: R.sup.1 and R.sup.2 (the same or different) mean alkyl with up to 6 carbon atoms;R.sup.3, R.sup.4, R.sup.5 and R.sup.6 (independently of one another) mean H, halogen, --OH, alkyl, alkoxy, acylamino or sulphonamido;M.sup.+ means an alkali metal ion, NH.sub.4.sup.
    Type: Grant
    Filed: June 5, 1998
    Date of Patent: January 11, 2000
    Assignee: Agfa-Gevaert AG
    Inventors: Kaspar Wingender, Gunther Schenk
  • Patent number: 5989801
    Abstract: The present invention provides a silver halide photographic material and an image forming method for obtaining a monochrome image using a dye image even if it is treated with a color developer free of benzyl alcohol; a photographic property of the monochrome image is less deteriorated by a toxic gas such as formaldehyde and an increase in sensitization and fog with time is improved.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: November 23, 1999
    Assignee: Oriental Photo Industrial Co., Ltd.
    Inventors: Toshio Hirosawa, Kouji Katsube, Toshiko Nakamura, Yoshiro Hayafuchi, Katsuyuki Arasawa
  • Patent number: 5968718
    Abstract: A color negative photographic element is disclosed that is constructed with the following layer unit coating sequence, starting with the support: slower red, slower green, slower blue, faster red, faster green and faster blue. A surprising enhancement in speed is realized when color development is undertaken in a time (S) ranging from 15 to 110 seconds and a development temperature (T) ranging from 40 to 65.degree. C., development time and temperature being chosen to satisfy the relationship:(T)(log S).gtoreq.75.
    Type: Grant
    Filed: July 14, 1998
    Date of Patent: October 19, 1999
    Assignee: Eastman Kodak Company
    Inventor: John H. Becher
  • Patent number: 5965340
    Abstract: A color negative photographic element is disclosed that is constructed for development in less than 2 minutes. Increased red and green speeds are realized by employing the following layer unit coating sequence, starting with the support: slower red, slower green, slower blue, faster red, faster green and faster blue. Total hydrophilic colloid in the layer units, interlayers and protective layer unit is limited to less than 15 g/m.sup.2 to facilitate more rapid development.
    Type: Grant
    Filed: June 26, 1998
    Date of Patent: October 12, 1999
    Assignee: Eastman Kodak Company
    Inventor: John H. Becher
  • Patent number: 5958664
    Abstract: The present invention relates to a new coupler which is capable of releasing a development accelerator having the formula: ##STR1## wherein COUP is a coupler moiety,T is a timing group and n is 0, 1 or 2,A is a group capable of being adsorbed to the silver halide surface,L is a linking group and r is 0 or 1, andR.sub.1 and R.sub.2 are independently selected from an alkyl group, substituted or unsubstituted, and an aryl group, substituted or unsubstituted.The present invention also concerns a photographic silver halide recording material containing such a coupler and further relates to a process for processing such a material.The invention provides a new DARC compound showing improved speed increase without undue fog formation.
    Type: Grant
    Filed: July 30, 1998
    Date of Patent: September 28, 1999
    Assignee: Eastman Kodak Company
    Inventors: Siu-Chung Tsoi, Peter J. Twist, David T. Southby
  • Patent number: 5952159
    Abstract: A method of processing photographic silver halide materials comprising several processing steps, in which at least two chemical treatment stages are each followed by a washing and drying is distinguished by reduced chemical consumption and a reduction in the formation of waste solution to be disposed of.
    Type: Grant
    Filed: August 20, 1998
    Date of Patent: September 14, 1999
    Assignee: Agfa-Gevaert AG
    Inventor: Ubbo Wernicke
  • Patent number: 5914225
    Abstract: A color negative photographic element is disclosed that a pair of fast green and red recording layer units coated to receive exposing radiation prior to at least one pair of slow green and red recording layer units. The green recording layer units together contain at least 1.0 g/m.sup.2 of silver with at least 60 percent of the silver in the green recording layer units being in a location other than the fast green recording layer unit, and the red recording layer units together contain at least 1.8 g/m.sup.2 of silver with at least 70 percent of the silver in the red recording layer units being in a location other than the fast red recording layer unit. When development times are reduced to 2 minutes or less during processing increased red speed, reduced granularity of the green record, and increased sharpness of the red record are observed.
    Type: Grant
    Filed: January 28, 1998
    Date of Patent: June 22, 1999
    Assignee: Eastman Kodak Company
    Inventor: John H. Becher
  • Patent number: 5902721
    Abstract: When a color negative film is developed in 2 minutes or less at a temperature of less than 40.degree. C. and contains in overlying blue and green recording layer units high bromide silver halide grains containing from 1 to 10 mole percent iodide, based on silver, and in an underlying red recording layer unit high bromide silver halide grains containing less than 0.05 mole percent iodide, based on silver, and at least 1.times.10.sup.-6 mole per silver mole of a hexacoordination complex of a Group 8 metal and coordination ligands, at least four of the ligands being anionic and at least one of the ligands being more electronegative than halide ligands, loss of lower scale contrast in the red record attributable to the faster time of development is avoided.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: May 11, 1999
    Assignee: Eastman Kodak Company
    Inventors: John H. Becher, Roger A. Bryant
  • Patent number: 5866306
    Abstract: The present invention relates to the use of certain polyalkylphenyl silanes in photoresists to generate positive tone resist images. The polyalkylphenyl silanes have the formula: ##STR1## where R is C2-C12 alkyl and n is about 150 to 7000.
    Type: Grant
    Filed: June 17, 1993
    Date of Patent: February 2, 1999
    Assignee: International Business Machines Corporation
    Inventors: Robert Dennis Miller, Gregory Michael Wallraff, Mark Edwin Baier
  • 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: 5834164
    Abstract: An image forming method is disclosed, comprising exposing a silver halide photographic light sensitive material comprising a support having thereon a silver halide emulsion layer containing a dye forming coupler and processing the exposed photographic material, wherein the coupler has, in its molecule, at least two sites capable of chelating with a metal ion to form a 5-membered or 6-membered chelate ring, thereby forming, together with a developing agent and the metal ion, a chelate dye.
    Type: Grant
    Filed: May 10, 1996
    Date of Patent: November 10, 1998
    Assignee: Konica Corporation
    Inventors: Noritaka Nakayama, Tatsuo Tanaka, Shigeto Hirabayashi
  • Patent number: 5821039
    Abstract: A color photographic element which comprises a light sensitive silver halide emulsion layer containing a 5-carbamoyl-1,3-dihydroxybenzene compound having a ClogP of at least 4. The element provides a black and white image using conventional color negative processing.
    Type: Grant
    Filed: May 30, 1997
    Date of Patent: October 13, 1998
    Assignee: Eastman Kodak Company
    Inventors: Ronald E. Leone, Stephen P. Singer
  • Patent number: 5731133
    Abstract: The storage stability of photographic color images obtained by chromogenic development may be improved by compounds of the formula I, which are capable of reacting with primary amines, in particular color developer compounds (reagent for primary amines). The compounds of the formula may be added to the color photographic recording material or to a treatment bath downstream from color development. Compounds of the formula I are moreover suitable as an additive to a spent photographic processing bath or its overflow in order to reduce therein the content of color developer compounds before the processing bath or the overflow is disposed of or regenerated for further use. ##STR1## In formula I: A means --OR.sup.2, --SR.sup.2 or --NR.sup.2 R.sup.3 ;R.sup.1 means H, alkyl, aryl, acyl, sulphonyl or a residue as in A or a residue which, together with A or together with Z.sup.1, completes a ring;R.sup.2 means H, alkyl, aryl, acyl, sulphonyl;R.sup.3 means a residue as in R.sup.
    Type: Grant
    Filed: May 15, 1996
    Date of Patent: March 24, 1998
    Assignee: Ajfa-Gevaert AG
    Inventors: Thomas Hubsch, Arno Schmuck
  • Patent number: 5723265
    Abstract: A color image forming method is disclosed, comprising developing a silver halide photographic material and bleach and/or fixing the photographic material, wherein the color image is formed in the presence of a dextran. The dextran may be incorporated in the photographic material or a processing solution.
    Type: Grant
    Filed: October 8, 1996
    Date of Patent: March 3, 1998
    Assignee: Konica Corporation
    Inventors: Shinsaku Nagaoka, Takehiko Shoji, Kiyokazu Morita, Tsukasa Ito, Yoshihiko Suda
  • Patent number: 5723263
    Abstract: A multicolor negative photographic element comprises a support bearing a blue light-sensitive silver halide emulsion first layer and a green light-sensitized silver halide emulsion second layer wherein said second layer contains a dye sensitized to green light and wherein said first layer has associated therewith a hue correction coupler which upon coupling with oxidized developer produces a dye having a maximum absorbance in the range of 460 to 510 nm. so that the element has a D480/D440 density ratio which is greater than that exhibited by the element without the hue correction coupler. The invention also encompasses a blue sensitive silver halide emulsion layer associated with the hue correction coupler and a method of forming an image in the photographic element of the invention.
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: March 3, 1998
    Assignee: Eastman Kodak Company
    Inventors: Stephen Paul Singer, Paul Barrett Merkel, Jeffrey Walter Schmoeger
  • Patent number: 5705312
    Abstract: There is described a photographic system wherein development of an exposed photosensitive element is carried out in the presence of a quaternary pyridinium compound which has a fused 5 - to 12 - member saturated carbocyclic ring attached to the 2 and 3 positions of the pyridine ring.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: January 6, 1998
    Assignee: Polaroid Corporation
    Inventors: Donna J. Guarrera, Neil C. Mattucci, Avinash C. Mehta, Lloyd D. Taylor, John C. Warner
  • Patent number: 5689753
    Abstract: A method of redox amplification processing of a photographic color material in which the image-forming step takes place in a developer-amplifier solution containing both a photographic color developing agent and an oxidant contained in a processing tank of comparatively small volume (the processing tank). A developer-amplifier replenisher solution which is stable over an idle period of 48 hours, is provided from a tank of comparatively large volume (the reservoir) holding sufficient for replenishment over a predetermined extended period of time at a rate which is greater than 160 ml/m.sup.2 of material processed. The overflow from the processing tank is returned to the reservoir where additions are made in a predetermined manner from water and/or one or more of four solutions comprising color developing agent concentrate, oxidant concentrate, buffer concentrate and anti-oxidant concentrate.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: November 18, 1997
    Assignee: Eastman Kodak Company
    Inventor: Peter Jeffery Twist
  • Patent number: 5677111
    Abstract: A process for production of a micropattern, comprised of a step for forming an antireflection film comprised of an inorganic film on an underlying substrate, a step for forming a resist film on said antireflection film, a step for exposing said resist film using i-rays or light of a wavelength shorter than i-ray and transferring a mask pattern to the resist film, a step for using the resist film on which the mask pattern had been transferred as a mask to etch the antireflection film and transfer the mask pattern to the antireflection film; and a step for using the antireflection film on which said mask pattern had been transferred as a mask to etch the underlying substrate and transfer the mask pattern to the underlying substrate.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: October 14, 1997
    Assignee: Sony Corporation
    Inventor: Tohru Ogawa
  • Patent number: 5618656
    Abstract: An improved image forming method is disclosed which comprises contacting both an originating photographic element and a display photographic element with substantially similar processing solutions. The originating photographic element is characterized in that it contains at least 50 mole percent silver chloride grains and no more than 2 mole percent silver iodide, based on total silver forming the grain projected area. The grains are tabular grains bounded by {100} faces having adjacent edge ratios of less than 100 and each having an aspect ratio of at least 2.
    Type: Grant
    Filed: April 20, 1995
    Date of Patent: April 8, 1997
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, John M. Buchanan
  • Patent number: 5563024
    Abstract: An improved image display material comprising a light sensitive tabular grain silver chloride emulsion spectrally sensitized to a peak wavelength of less than about 475 nm, and a method of use comprising the step of optically printing a color image onto the improved color photographic display material is provided. The material and method enable reduced printing times, improved color reproduction and lowered image granularity.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: October 8, 1996
    Assignee: Eastman Kodak Company
    Inventors: Anne E. Bohan, Jerzy A. Budz, Pamela M. Ferguson, Alberto M. Martinez, James P. Merrill, Scott F. O'Dell, Richard P. Szajewski
  • Patent number: 5556737
    Abstract: The present invention relates to a method for forming a color image in a silver halide color photographic material comprising a reflective support having coated thereon a composition comprising a polyester resin and a white pigment mixed and dispersed in said polyester resin, at least one yellow color forming silver halide photosensitive emulsion layer, at least one magenta color forming silver halide photosensitive emulsion layer, and at least one cyan color forming silver halide photosensitive emulsion layer on said support, each of said yellow, magenta and cyan color forming silver halide photosensitive emulsion layers having silver halide grains containing 95 mol % or more of silver chloride, wherein said method comprises the steps of exposing imagewise said silver halide color photographic material to light, developing said imagewise exposed silver halide color photographic material in a color developing solution, subjecting said developed silver halide color photographic material to desilvering by bleac
    Type: Grant
    Filed: November 30, 1993
    Date of Patent: September 17, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Koichi Nakamura
  • Patent number: 5538834
    Abstract: A method is disclosed for developing an image in a photographic element comprising a support, a silver halide emulsion containing an imagewise distribution of developable silver halide grains, and a blocked photographically useful compound comprising a photographically useful group and a blocking group capable of releasing the photographically useful group upon processing the photographic element in the presence of a peroxide, wherein the blocking group comprises an electrophilic group which is solely capable of undergoing a nucleophilic displacement reaction, the electrophilic group being bonded directly or through a releasable timing group to the photographically useful group, with the proviso that when the photographically useful group is a development inhibitor, the blocking group is bonded to the photographically useful group through at least one releasable timing group. The method comprises the step of contacting the photographic element with a processing solution comprising a peroxide.
    Type: Grant
    Filed: November 21, 1994
    Date of Patent: July 23, 1996
    Assignee: Eastman Kodak Company
    Inventors: J. Michael Buchanan, Jared B. Mooberry, John Texter
  • Patent number: 5508421
    Abstract: A pyrrolotriazole azomethine dye represented by formula (I), (II) or (IV) is disclosed: ##STR1## Also, a heat transfer dye providing material is disclosed, in which the material includes a support having thereon a dye providing layer containing a heat migrating dye, with the dye providing layer containing at least one pyrrolotriazole azomethine dye represented by any of the above formulae (I), (II) and (IV).
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: April 16, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Makoto Suzuki, Hisashi Mikoshiba, Seiiti Kubodera, Osamu Takahashi, Yasuhiro Shimada, Koushin Matsuoka, Shigeru Yamazaki, Katsuyoshi Yamakawa, Kozo Sato
  • Patent number: 5443945
    Abstract: The invention provides novel photographic compositions comprising a propene isomer of the formula ##STR1## wherein A B or E, each individually represent hydrogen, or an electron withdrawing group, selected for example from --CN, --NO.sub.2, --SO.sub.2 R, --SO.sub.2 NH--, --CO.sub.2 R, --COR, --CONHR, --CONHAr, --CF.sub.3 halogen, amino, aryl, aralkyl, alkyl, cycloalkyl, alkyl (carbonyl)oxy, aryl (carbonyl)oxy, carboxy, alkoxycarbonyl, aryloxycarbonyl, carbamomyl, acyl, alkylaminocarbonyl, arylaminocarbonyl, alkoxycarbonylamino, acylamino, ureido, alkylsulphonylamino, arylsulphonylamino, sulphamoylamino, alkylsulphonyl, arylsulphonyl, sulphamoyl, imido, alkylthio, arylthio and heterocycles; the invention also provides a propene isomer of the formula I wherein D represents a group of the formula Ar--L--wherein Ar is a phenyl group optionally substituted with one or more substituents, and --L-- is a linking group incorporating a lone pair of electrons; and A, B, E and X are defined as R is above defined.
    Type: Grant
    Filed: May 19, 1993
    Date of Patent: August 22, 1995
    Assignee: Eastman Kodak Company
    Inventor: Hugh M. Williamson