Amine Developer Patents (Class 430/484)
  • Publication number: 20130017375
    Abstract: A developing solution is disclosed with which it is possible to develop a photoresist disposed on a substrate including a conductive polymer. Also disclosed is a method for forming a resist pattern using the developing solution. The developing solution contains one or more acids and/or salts thereof, the acids being selected from inorganic acids, amino acids having an isoelectric point less than 7, and carboxylic acids having two or more carboxy groups. Use of this developing solution hence inhibits the phenomenon in which a substrate including a conductive polymer suffers an increase in surface resistivity due to a developing solution, and makes it possible to obtain a fine resist pattern.
    Type: Application
    Filed: January 20, 2011
    Publication date: January 17, 2013
    Applicant: TOAGOSEI CO., LTD
    Inventors: Takashi Ihara, Hiromu Taguchi
  • Publication number: 20080081295
    Abstract: A developing solution containing at least one of compounds represented by the formulae <1>, <2> and <3> as defined herein, and having a pH of from 2 to 10; and a method for producing a lithographic printing plate, including imagewise exposing a lithographic printing plate precursor including an image recording layer and a support to cure the image recording layer in the exposed area, and developing the exposed lithographic printing plate precursor with an aqueous solution containing at least one of the compounds represented by the formulae <1>, <2> and <3> as defined herein and having a pH of 2 to 10 are provided.
    Type: Application
    Filed: September 28, 2007
    Publication date: April 3, 2008
    Applicant: FUJIFILM CORPORATION
    Inventor: Keiichi ADACHI
  • Patent number: 6770406
    Abstract: This invention relates to an imaging element comprising an imaging layer having associated therewith a compound of Structure I: wherein PUG is a residue of removing a hydrogen from wherein X, Y, and Z represent substituents selected independently from the groups hydrogen, alkyl group of 1 to 6 carbon atoms, cyclopropyl, aryl, arylalkyl, and heterocyclic groups, wherein at least one of X, Y, and Z is an aryl group and one of X, Y, Z, which may or may not be an aryl group, is attached in the direction of the backbone, and the other substituents are as defined in the specification. Such compounds have good reactivity and can by used to block photographically useful compounds such as developing agents until thermally activated under preselected conditions. Compounds according to the present invention are especially useful in color photothermographic imaging elements.
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: August 3, 2004
    Assignee: Eastman Kodak Company
    Inventors: James H. Reynolds, Douglas R. Robello, David H. Levy
  • Publication number: 20040110093
    Abstract: The present invention provides a substrate having thereon a patterned small molecule organic semiconductor layer. The present invention also provides a method and a system for the production of the substrate having thereon a patterned small molecule organic semiconductor layer. The substrate with the patterned small molecule organic semiconductor layer is prepared by exposing a region of a substrate having thereon a film of a precursor of a small organic molecule to energy from an energy source to convert the film of a precursor of a small organic molecule to a patterned small molecule organic semiconductor layer.
    Type: Application
    Filed: December 9, 2002
    Publication date: June 10, 2004
    Applicant: International Business Machines Corporation
    Inventors: Ali Afzali-Ardakani, Hendrik F. Hamann, James A. Lacey, David R. Medeiros, Praveen Chaudhari, Robert J. Von Gutfeld
  • Publication number: 20030134235
    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: Application
    Filed: November 1, 2002
    Publication date: July 17, 2003
    Applicant: Eastman Kodak Company
    Inventors: Shirleyanne E. Haye, Janet M. Huston, Richard R. Horn, Anthony Jarkowski
  • Patent number: 6531271
    Abstract: A light-sensitive silver-halide color photographic element comprising at least two different chromogenic couplers including, in reactive association, a multifunctional coupler and a developer precursor that liberates a developing agent enabling cyan color from the multifunctional coupler on development, wherein the multifunctional coupler has the property that it is capable of forming a distinctly colored dye with an oxidized form of the developer 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine. In one embodiment, the multifunctional coupler has the property that it is capable of forming a distinctly colored magenta dye with an oxidized form of the developer 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine. By means of the present invention, light-sensitive color photothermographic elements can form yellow, magenta and cyan dye records of consistent density forming ability and consistent stability in all three color records.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: March 11, 2003
    Assignee: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Lyn M. Irving
  • Publication number: 20020061474
    Abstract: Concentrated aqueous photographic color developing compositions include a photographic color developing agent in free base form and a compound represented by Structure I 1
    Type: Application
    Filed: June 29, 2001
    Publication date: May 23, 2002
    Applicant: Eastman Kodak Company
    Inventors: Jean M. Buongiorne, Ramanuj Goswami, Mary E. Craver
  • Patent number: 6368780
    Abstract: A silver halide photographic material excellent in color generation, color reproduction and image fastness, which comprises at least one coupler represented by the following formula: wherein R1 represents an alkyl group which may be optionally substituted, with the proviso that an alkyl group substituted by a halogen atom alone and an alkyl group substituted by a halogen atom and an aryl group are excluded from R1; R2 and R3, which may be the same or different, each represents a hydrogen atom or a substituent; and X1 represents a group which can leave by coupling with an oxidation product of a color developing agent; and an image formation method using the same.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: April 9, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kiyoshi Takeuchi, Taiji Katsumata, Satoshi Sano, Yuki Mizukawa
  • Publication number: 20020037478
    Abstract: Disclosed are a phosphor pattern which comprises a calcination product of a phosphor pattern precursor containing
    Type: Application
    Filed: September 20, 2001
    Publication date: March 28, 2002
    Inventors: Naoki Kimura, Seiji Tai, Hiroyuki Tanaka, Takeshi Nojiri, Kazuya Satou, Yoshiyuki Horibe, Mariko Shimamura, Toranosuke Ashizawa, Eiji Fujita, Seikichi Tanno
  • Publication number: 20020012886
    Abstract: The present invention relates to a novel blocked phenylenediamine developer useful, in reactive association, for enabling, on development, a non-magenta color, for example a cyan color, from a dye-forming coupler. In one embodiment, the developer has the property that the dye color formed with the coupler is distinctly different from the color formed by the same coupler with an oxidized form of the conventional developer 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine. The invention is also directed to a light-sensitive silver-halide color photographic element comprising the blocked developing agent according to the present invention.
    Type: Application
    Filed: May 31, 2001
    Publication date: January 31, 2002
    Applicant: Eastman Kodak Company
    Inventors: Richard P. Szajewski, Lyn M. Irving
  • Patent number: 6337177
    Abstract: Disclosed is a silver halide color photographic material comprising a support, photosensitive silver halide emulsion layers grouped into at least three units according to their color sensitivities, each of which comprises a blue-sensitive, green-sensitive or red-sensitive silver halide emulsion, a color developing agent and a coupler, and a light-insensitive layer, wherein the photographic material has a total silver coverage of at most 5.0 g/m2, and at least one emulsion comprised in the highest-speed emulsion layer of at least one of each unit is a tabular silver halide emulsion that comprises tabular silver halide grains having an average thickness of from 0.05 to 0.20 &mgr;m.
    Type: Grant
    Filed: September 3, 1999
    Date of Patent: January 8, 2002
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Makoto Kikuchi
  • Publication number: 20010055734
    Abstract: A concentrated aqueous solution of a p-phenylenediamine derivative, which a) has a pH higher than 12.5, b) contains 0.4 to 1.1 mol p-phenylenediamine derivative/litre, c) contains 0.05 to 2 mol of an antioxidant/litre, d) contains at most 35% by weight of organic solvents with respect to the total solution, e) contains at most 50 mmol sulphate ions/litre and f) is single-phase, is suitable for the production of different colour developer formulations.
    Type: Application
    Filed: May 14, 2001
    Publication date: December 27, 2001
    Inventors: Gustav Tappe, Wolfgang Korner, Gerhard Schmid
  • Patent number: 6265141
    Abstract: Disclosed are new color developing agents such as those shown below and their analogues: When the color developing agent is used, the color development is accelerated and the developed photosensitive material can be prevented from yellow stain during storage thereof.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: July 24, 2001
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masato Taniguchi, Kiyoshi Morimoto, Hiroshi Fujimoto, Akimitsu Haijima
  • Patent number: 6130022
    Abstract: There is disclosed a heat-developable color photographic light-sensitive material having on a base at least a light-sensitive silver halide, a binder, a coupler, and a reducing agent, wherein, as the reducing agent, a co-emulsion comprising at least one silver-developing reducing agent and at least one color-image-forming reducing agent is contained, and the silver-developing reducing agent is a specific sulfonamidophenol compound, and wherein the coupler forms a diffusion dye by reaction with an oxidized product of the color-image-forming reducing agent. The light-sensitive material can secure good discrimination by rapid processing and it is excellent in raw stock storability.
    Type: Grant
    Filed: September 7, 1999
    Date of Patent: October 10, 2000
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hideaki Naruse
  • Patent number: 5976756
    Abstract: A diffusion transfer silver halide photographic material containing a color developing agent represented by the following formula (I) in a hydrophilic colloid layer provided on a support: ##STR1## wherein C.sub..alpha. represents a carbon atom; Z represents a carbamoyl group, an acyl group, an alkoxycarbonyl group, or an aryloxycarbonyl group; and Q represents an atomic group for forming a unsaturated ring together with C.sub..alpha., whereby a color diffusion transfer silver halide photographic material containing a novel color developing agent from which a diffusible dye can be formed is provided.
    Type: Grant
    Filed: November 29, 1996
    Date of Patent: November 2, 1999
    Assignee: Fuji Photo Film, Co., Ltd.
    Inventors: Koki Nakamura, Kiyoshi Takeuchi, Taiji Katsumata, Toshiki Taguchi
  • Patent number: 5962200
    Abstract: A method for forming a color image comprising developing an image-wise exposed silver halide color photographic photosensitive material in the presence of certain 6-aminotetrahydroquinoline color developing compounds or analogues thereof. A rapid process can be attained and an image of a low fog density can be obtained.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: October 5, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masato Taniguchi, Kiyoshi Morimoto, Keizo Kimura, Kazumi Nii, Shigeo Hirano
  • Patent number: 5942380
    Abstract: The present invention concerns a novel method for developing silver halide photographic products. This method involves processing photographic products that have an incorporated developing agent, and a nucleation agent, by surface application of an activator solution. This method intended for processing graphic arts films having high contrast.
    Type: Grant
    Filed: June 10, 1998
    Date of Patent: August 24, 1999
    Assignee: Eastman Kodak Company
    Inventor: Francoise M. Thomas
  • Patent number: 5871880
    Abstract: There is disclosed a silver halide color photographic light-sensitive material having at least one photographic constitutional layer coated on a support, wherein at least one of the photographic constitutional layers contains at least one reducing agent for color formation represented by formula (I), at least one coupler for forming a diffusive dye, and at least one mordant. The material is capable of reducing the amount of developer and to be replenished or discharged after processing, and of reducing the occurrence of stain after development during storage of the material. There is also disclosed an image-forming method using the material. ##STR1## wherein C.alpha. represents a carbon atom; Z represents a carbamoyl, acyl, alkoxycarbonyl, or aryloxycarbonyl group; and Q represents a group of atoms to form, together with C.alpha., an unsaturated ring.
    Type: Grant
    Filed: November 26, 1996
    Date of Patent: February 16, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Toshiyuki Makuta, Koki Nakamura
  • Patent number: 5869218
    Abstract: Disclosed are an image formation process which comprises developing a photographic material comprising a silver halide emulsion layer, and a hydrazine derivative and a specific phosphonium compound of formula (1) with a developer which is substantially free of a dihydroxybenzene developing agent, contains a specific developing agent of formula (2) and at least one p-aminophenol derivative, and has a pH value of not more than 10, and a development process which comprises developing a photographic material comprising a silver halide emulsion layer, and a hydrazine derivative and a nucleation accelerator, with a developer having a pH value of from 9.0 to 10.5 and containing a first developing agent selected from ascorbic acid and a derivative thereof and a second developing agent selected from aminophenol and a derivative thereof, wherein a solution having the same composition as the fresh developer but a higher pH value than the fresh developer is used as a development replenisher.
    Type: Grant
    Filed: July 26, 1996
    Date of Patent: February 9, 1999
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Minoru Sakai, Kazunobu Katoh
  • Patent number: 5830625
    Abstract: A silver halide color photographic material is disclosed, comprising a support having thereon at least two light-sensitive silver halide emulsion layers, the lowermost light-sensitive silver halide emulsion layer and/or a light-insensitive layer adjacent thereto containing a compound represented by formula (D): ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group, an aryl group or a heterocyclic group, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 each represents a hydrogen atom, a halogen atom or a substituent connecting to the benzene ring through a carbon atom, an oxygen atom, a nitrogen atom or a sulfur atom, R.sup.1 and R.sup.2, R.sup.1 and R.sup.3, R.sup.3 and R.sup.4, R.sup.2 and R.sup.5 or R.sup.5 and R.sup.6 may be combined to form a ring, R.sup.7 represents a hydrogen atom or forms=(T).sub.m S together with -(T).sub.m S, T represents a timing group, m represents an integer of 0 to 3 and S represents a protective group eliminated at the development.
    Type: Grant
    Filed: July 12, 1996
    Date of Patent: November 3, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Shigeo Hirano
  • Patent number: 5773203
    Abstract: Disclosed are 4-(N,N-dialkylamino)aniline compounds having a 4-N substituent which is a polyethyleneoxy group and which forms a condensed ring with benzene ring, such as aniline compounds having the following structure, a processing composition containing such a compound and a method for forming a color image with the processing solution. The aniline compound is useful as a color developing agent capable of having a low fog density and sufficient yellow and cyan image densities and suitable for the rapid process.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: June 30, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Keizo Kimura, Shigeo Hirano, Hiroshi Kawamoto
  • Patent number: 5702865
    Abstract: Relief images can be formed in photographic elements having a tanning developing agent incorporated therein. The tanning developing agents have the formula: ##STR1## wherein R.sup.1 and R.sup.2 are each an alkyl group of at least 3 carbon atoms, or an aryl group,After exposure, the material is treated with an alkaline solution and unhardened areas are removed.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: December 30, 1997
    Assignee: Eastman Kodak Company
    Inventor: Michael John Simons
  • Patent number: 5672467
    Abstract: A dye image forming photographic element is disclosed containing at least one green or red sensitized silver halide emulsion layer containing a dye-forming coupler and silver halide grains. At least 50 percent of the projected area of the silver halide grains is accounted for by grains (a) containing greater than 50 mole percent chloride, based on silver, (b) having {100} major faces, (c) exhibiting a thickness of 0.2 .mu.m or less, (d) exhibiting a mean equivalent lent circular diameter in the range of from 3 to 6 .mu.m, and (e) including a core and a surrounding band containing a higher level of iodide ions than the core and up to 30 percent of the silver forming the grains. The photographic element exhibits a sensitivity of greater than 750, where sensitivity is measured as the reciprocal of the exposure in lux-seconds required to produce a density of 0.15 above fog when the photographic element is exposed to a 3000.degree. K.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: September 30, 1997
    Assignee: Eastman Kodak Company
    Inventors: Lois Ann Buitano, Robert Lawrence Bittner
  • Patent number: 5614356
    Abstract: A method for forming a color image comprises the step of developing an image-wise exposed silver halide color photographic photosensitive material at the presence of the following color developing agent or its analogue. According to this method, the rapid process can be attained, causing only a slight deterioration of the developer with time and capable of sufficiently exhibiting high yellow and cyan densities to achieve an excellent color balance.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: March 25, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazumi Nii, Kiyoshi Morimoto
  • Patent number: 5478704
    Abstract: i) A method of forming color images improved in color reproducibility and sharpness, which comprises providing a silver halide color photographic material which has on a support at least one emulsion layer unit constituted of at least two silver halide emulsion layers having the same color sensitivity and different photographic speeds, and which contains at least one DIR compound represented by the following general formula (II) in at least one layer selected from said emulsion layer unit and other constituent layers; exposing said color photographic material, and processing said color photographic material with a color developer containing at least one compound represented by the following general formula (I): ##STR1## wherein R.sub.1 represents an alkyl group or a hydroxyalkyl group containing; R.sub.2 represents an alkylene group containing, or a straight-chain or branched hydroxyalkyiene group containing 3 to 6 carbon atoms; R.sub.
    Type: Grant
    Filed: August 17, 1994
    Date of Patent: December 26, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masato Taniguchi, Nobutaka Ohki, Mitsuru Yamamoto, Akimitsu Haijima
  • Patent number: 5459014
    Abstract: A method for forming a color photographic image is disclosed. The method comprises steps ofimagewise exposing a silver halide color photographic light-sensitive material comprising a support, and a silver halide emulsion layer and a non-light-sensitive layer each provided on the support,developing the light-sensitive material with a color developer, andbleach-fixing the developed light-sensitive material with a bleach-fixing solution,wherein the silver halide emulsion layer or the non-light-sensitive layer contains a compound represented by the following Formula 1 and the color developer contains a chloride in an amount of not less than 6.times.10.sup.-2 moles per liter; ##STR1## wherein R.sub.1 is a tertiary alkyl group; R.sub.2 is a primary or a secondary alkyl group; R.sub.3, R.sub.4 and R.sub.5 are each an alkyl group, an alkoxycarbonyl group, a phenoxycarbonyl group, an alkoxy group, a phenoxy group or a phenylthio group, the groups represented by R.sub.1, R.sub.3, R.sub.4 or R.sub.
    Type: Grant
    Filed: September 7, 1994
    Date of Patent: October 17, 1995
    Assignee: Konica Corporation
    Inventors: Toyoki Nishijima, Motoi Nishimura
  • Patent number: 5427897
    Abstract: A method for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least a silver halide emulsion layer containing a cyan dye-forming coupler, a silver halide emulsion layer containing a magenta dye-forming coupler, and a silver halide emulsion layer containing a yellow dye-forming coupler: wherein the silver halide color photographic material contains at least one cyan dye-forming coupler represented by the following general formula (I) or (II) in the silver halide emulsion layer containing the cyan dye-forming coupler: and wherein the processing comprises color developing the imagewise exposed silver halide color photographic material with a color developer containing a p-phenylenediamine derivative represented by the following general formula (III): ##STR1## wherein the substituents are defined herein the specification.
    Type: Grant
    Filed: February 12, 1993
    Date of Patent: June 27, 1995
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koichi Nakamura, Masato Taniguchi
  • Patent number: 5411842
    Abstract: A method for making a photographic silver halide developer composition, preferably immediately before use, by electrolysing an aqueous medium containing a developing agent precursor composition which forms or releases a silver halide developing agent at an electrode upon electrolysis.
    Type: Grant
    Filed: April 7, 1994
    Date of Patent: May 2, 1995
    Assignee: Eastman Kodak Company
    Inventors: Michael Ridgway, Nigel E. Milner, Siu C. Tsoi, Paul C. Ward
  • Patent number: 5376509
    Abstract: A processing chemical for light-sensitive silver halide photographic material, comprising a cyclodextrin compound, which can contribute a decrease in packaging materials, transportation cost and storage space, can be free from lateral cracking at the formation of tablets, and can bring about an improvement in storage stability after being formed into processing solutions (i.e., more free from occurrence of stain during developing and scratches in light-sensitive materials having been processed, caused by deposition of crystals).
    Type: Grant
    Filed: November 27, 1992
    Date of Patent: December 27, 1994
    Assignee: Konica Corporation
    Inventors: Hiroshi Yoshimoto, Shoji Nishio, Hideki Komatsu, Satomi Kawasaki
  • Patent number: 5362610
    Abstract: A solid photographic processing agent for a silver halide photographic light-sensitive material is disclosed. It has a bulk density of 0.5 to 6.0 g/cm.sup.3, and comprises a photographic processing agent and at least one of the compounds represented by the following Formula (I):Formula (I)R--(O).sub.n SO.sub.3 Xwherein R represents an alkyl group having 1 to 8 carbon atoms, a phenyl group or a polymer chain having a repetition unit derived from an ethylenically unsaturated group; X represents a hydrogen atom, an alkali metal or an ammonium group; and n is an integer of 0 or 1.
    Type: Grant
    Filed: February 17, 1994
    Date of Patent: November 8, 1994
    Assignee: Konica Corporation
    Inventor: Hiroshi Yoshimoto
  • Patent number: 5354646
    Abstract: A method of colour-developing a silver halide colour light-sensitive material having plural silver halide emulsion layers each containing substantially silver chlorobromide. At least one of the layers has a silver chloride content of not less than 20 mol %, and a colour developer being used in the colour developing method contains the compounds each represented by the following formula [I]: ##STR1## According to the processing method, a colour photographic image having a satisfactory colour density can be obtained by a rapid development process and the excellent preservability for a long standing of the colour developer can be displayed.
    Type: Grant
    Filed: March 7, 1994
    Date of Patent: October 11, 1994
    Assignee: Konishiroku Photo Industry Co., Ltd.
    Inventors: Kazuhiro Kobayashi, Shigeharu Koboshi, Masao Ishikawa, Masayuki Kurematsu, Yoko Matsushima
  • Patent number: 5346809
    Abstract: A method of photographic color image formation is disclosed. The method gives a color photographic image having high preservability under a condition with a lowered replenishing amount of developer. The method comprises the following steps;(1) imagewise exposing to light a silver halide color photographic light-sensitive material which comprises a support having thereon a silver halide emulsion layer,(2) developing the exposed light-sensitive material with a color developer,(3) bleach-fixing the developed light-sensitive material with a bleach-fixer, and(4) washing the bleach-fixed light-sensitive material, In the above method, the silver halide emulsion layer contains a specified yellow coupler having a molecular weight of not more than 800 and a specified antifungal agent. The developing step is carried out for a time not more than 25 seconds and developer is replenished with a developer replenisher in a ratio of from 20 ml to 150 ml per square meter of light-sensitive material developed the developer.
    Type: Grant
    Filed: December 15, 1992
    Date of Patent: September 13, 1994
    Assignee: Konica Corporation
    Inventors: Shun Takada, Satoshi Masumi
  • Patent number: 5344750
    Abstract: A color development process for processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer comprising a color coupler and a silver iodobromide emulsion containing silver iodide in an amount of from 2 to 20 mol %, comprising the step of processing the color photographic material in a color developing solution containing a color developing agent and bromide ion for 40 seconds to 90 seconds, wherein the color developing agent is represented by formula (D'): ##STR1## wherein R.sub.1d, and R.sub.2d, each represents an alkyl group having 1 to 4 carbon atoms; and L.sub.1 represents a straight-chain or branched alkylene group having 3 or 4 carbon atoms, the concentration {Br.sup.- } of bromide ion in the color developing solution is from 30 to 60 mmol/l, the relationship between the concentration {R} of the color developing agent in the color developing solution and the concentration {Br.sup.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: September 6, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hiroshi Fujimoto, Masato Taniguchi
  • Patent number: 5328812
    Abstract: A dye image-forming method comprising color developing an image wise exposed silver halide color photographic material comprising a support having thereon a layer containing an acylacetamide yellow coupler having an acyl group represented by a following formula (YI) ##STR1## wherein R.sub.1 represents a monovalent group; Q represents a group of atoms necessary to form 3- or 5-membered hydrocarbon ring or a 3- to 5-membered heterocylcic ring; provided that R.sub.1 is not a hydrogen atom and is not combined with Q to form a ring; with a developing solution containing at least one aromatic primary amine color developing agent represented by formula (D) or (E): ##STR2## wherein R.sub.4 represents a linear or branched alkyl group having 1 to 6 carbon atoms or a linear or branched hydroxyalkyl group having 3 to 6 carbon atoms; R.sub.5 represents a linear or branched alkylene group having 3 to 6 carbon atoms or a linear or branched hydroxyalkylene group having 3 to 6 carbon atoms; R.sub.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: July 12, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Akimitsu Haijima, Masato Taniguchi
  • Patent number: 5310634
    Abstract: A p-phenylenediamine series color developing agent or a precursor thereof having a substituent A at the ortho-position; Substituent A: ##STR1## wherein R.sup.1 represents a hydrogen atom or an alkyl group and X represents --O--R.sup.7 or ##STR2## wherein R.sup.7 represents an alkyl group, an aryl group, or a heterocyclic ring and R.sup.8 and and R.sup.9, which may be the same or different, each represents a hydrogen atom, an alkyl group, an aryl group, or a heterocyclic ring, R.sup.8 and R.sup.9 may combine with each other to form a heterocyclic ring, and a process for forming an image which comprises imagewise exposing a silver halide color photographic material and thereafter color developing the color photographic material in the presence of a p-phenylenediamine series color developing agent or a precursor thereof having the aforesaid substituent A.
    Type: Grant
    Filed: October 30, 1991
    Date of Patent: May 10, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Hisashi Mikoshiba, Mitsugu Tanaka, Kei Sakanoue
  • Patent number: 5278034
    Abstract: A process for forming a color image comprises the step of developing an image-wise exposed silver halide color photographic material with a color developing composition containing an N-(4-aminophenyl)pyrrolidine derivative such as ##STR1## which produces an excellent hue in a rapid process.
    Type: Grant
    Filed: December 11, 1992
    Date of Patent: January 11, 1994
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Nobutaka Ohki, Koichi Nakamura, Masato Taniguchi
  • Patent number: 5264331
    Abstract: There are provided p-phenylenediamine color developing agent such as ##STR1## which makes it possible to form a yellow dye having a color image fastness to light while its ordinary photographic properties such as the developing activity and hue are kept. A processing liquid composition for a silver halide color photosensitive material comprises the p-phenylenediamine color developing agent and a pH buffering agent, and has a pH of 9 to 12. A process for forming a color image of claim comprises color-developing an image-wise exposed silver halide color photographic material with the processing liquid composition at a temperature of 30.degree. to 45.degree. C. for 20 seconds to 4 minutes.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: November 23, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Masato Taniguchi, Nobutaka Ohki, Koichi Nakamura
  • Patent number: 5260185
    Abstract: A concentrated composition of color developer for silver halide color photographic light-sensitive material is disclosed. The composition is excellent in stability during storage for a long period. The composition comprises a specified hydroxyamine derivative and a specific chelating agent. The composition preferably has a pH value of not lower than 10.6.
    Type: Grant
    Filed: August 11, 1992
    Date of Patent: November 9, 1993
    Assignee: Konica Corporation
    Inventors: Naoki Takabayashi, Mitsuhiko Uno, Masaaki Furuya
  • Patent number: 5254436
    Abstract: The present invention provides a method for image formation which is free from the problems such as uneven development and pepper fog and can give photographic characteristics of extremely high contrast negative tone using a stable developer and which comprises developing a silver halide photographic light-sensitive material in the presence of a compound represented by the following formula (I): ##STR1## wherein R.sub.1 represents an alkyl group of 1-8 carbon atoms or a cycloalkyl group having 4-8 carbon atoms in the ring, R.sub.2, R.sub.3 and R.sub.4 may be identical or different and each represents a hydrogen atom, an alkyl group, an aralkyl group, an aryl group or a heterocyclic group with a proviso that they cannot be simultaneously hydrogen atoms, R.sub.2 and R.sub.3 may link to each other to form a ring structure, and at least one hydroxy group is present in the substituents R.sub.2, R.sub.3 and R.sub.4.
    Type: Grant
    Filed: December 23, 1991
    Date of Patent: October 19, 1993
    Assignee: Mitsubishi Paper Mills Limited
    Inventors: Masao Koga, Minoru Ohashi
  • Patent number: 5252439
    Abstract: A method for processing an imagewise exposed color photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer comprising a silver halide emulsion containing at least 90 mol % silver chloride, comprising the steps of: (a) developing in a color developing bath; (b) bleaching in a bath having a bleaching ability and fixing in a bath having a fixing ability or bleach-fixing in a bath having a bleaching and fixing ability; and (c) independently supplying a low pH replenisher and a high pH replenisher to the developing bath each in an amount depending on the quantity of photographic material processed, the low pH replenisher having a pH of from 2 to 6 and mainly containing a color developing agent and the high pH replenisher containing one or more components of the developing bath, wherein the components of the each replenisher are sufficiently diluted upon addition to the developing bath to avoid formation of a precipitate by mixing with the components of th
    Type: Grant
    Filed: June 3, 1992
    Date of Patent: October 12, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Koichi Nakamura
  • Patent number: 5250396
    Abstract: A method of continuously processing an imagewise exposed silver halide photographic material using an automatic processor which has a color development bath, comprising the steps of a) developing with a color developer containing an organic preservative, and b) adding to the color developer during the continuous processing (i) a replenisher for the color developer containing a development agent and other components for the development in an amount of from 20 ml to 600 ml per m.sup.2 of the photographic material processed, and (ii) a water solution in an amount of from 0.1 to 1.2 times the amount of the developer which has evaporated from the bath at a frequency of about once per week or more often.
    Type: Grant
    Filed: September 30, 1992
    Date of Patent: October 5, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Shinji Ueda, Takatoshi Ishikawa, Hiroshi Fujimoto
  • Patent number: 5176987
    Abstract: A method for processing an imagewise exposed color photographic material using fast developing time while maintaining stable processing conditions, reduced developer replenishing, and light fastness of developed color images. The method comprises developing a color photographic material containing silver halide grains comprising (i) substantially no silver iodide and (ii) at least about 80 mol % silver chloride with a developer comprising (i) substantially no benzyl alcohol and (ii) a p-phenylenediamine derivative represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each represents an alkyl group having from 1 to 4 carbon atoms and R.sup.2 represents a straight chain or branched alkylene group having 3 or 4 carbon atoms and wherein the developing is for a period of time of less than 30 seconds.
    Type: Grant
    Filed: October 16, 1991
    Date of Patent: January 5, 1993
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Koichi Nakamura, Nobutaka Ohki
  • Patent number: 5155014
    Abstract: Method for the production of direct-positive images by image-wise exposing a light-sensitive silver halide material comprising a support and an internal latent image-type silver halide emulsion layer and developing said exposed material in the presence of at least one development nucleator and density-increasing amounts of a compound chosen from the class consisting of formic acid, oxalic acid, glyoxylic acid, or salts of these and/or of a compound chosen from the class consisting of polyethylene glycols, with a hydroquinone-type developing solution having a pH not higher than 12.0 and comprising less than 25 g per liter of a hydroquinone and 5 to 100 g per liter of at least one alkanolamine.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: October 13, 1992
    Assignee: Agfa-Gevaert, N.V.
    Inventors: Jozef P. De Prijcker, Fernand I. Ketels, Jean-Marie O. Dewanckele, Piet Kok
  • Patent number: 5153111
    Abstract: A composition for color-development of a silver halide color photographic material and a method for processing such using the same wherein the composition comprises an aromatic primary amine color developing agent, a hydroxylamine compound represented by formula (I) or a hydrazine compound represented by formula (II) and at least one polymer selected from the group consisting of a vinyl alcohol homopolymer, a vinyl alcohol copolymer, a vinylpyrrolidone homopolymer, and a vinylpyrrolidone copolymer, being free from sulfite ion, providing a color photographic image high in maximum density and good in whiteness without causing problems by tarry substance in the color developer.
    Type: Grant
    Filed: January 24, 1991
    Date of Patent: October 6, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Kazuaki Yoshida, Takatoshi Ishikawa, Tadashi Ogawa, Hiroshi Fujimoto, Junichi Yamanouchi, Tomokazu Yasuda
  • Patent number: 5147766
    Abstract: A method for continuously processing an image-wise exposed silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer containing 95 mol % or more of silver chloride is disclosed, which comprises the steps of developing the silver halide color photographic material in a color developer and supplying a replenisher to the color developer, the replenisher comprising used color developer and a regenerant wherein components accumulated to the color developer during the continuous processing are not removed from the replenisher. This method does not require a large scale apparatus and provides stable photographic properties without substantially producing waste water and without causing crystallization of chemicals in a replenisher even after repeated regeneration, particularly when varying the amount of light-sensitive material being processed per unit time.
    Type: Grant
    Filed: September 6, 1990
    Date of Patent: September 15, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Takatoshi Ishikawa, Kazuaki Yoshida, Hiroshi Fujimoto
  • Patent number: 5128237
    Abstract: Significant improvement in color reproduction can be achieved by a direct positive silver halide color photographic material having at least one each of a blue-sensitive, green-sensitive and a red-sensitive direct positive silver halide emulsion layer, in which material at least one of said direct positive silver halide emulsion layer contains both silver chloride or a silver halide composed of silver chlorobromide or silver chloroiodobromide containing no less than 50 mol % of AgCl, and a specific compound that is capable of reacting with the oxidation product of a developing agent to release a specific compound capable of scavenging said oxidation product or a precursor of said scavenging compound.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: July 7, 1992
    Assignee: Konica Corporation
    Inventors: Nariko Kimura, Tomomi Yoshizawa, Shigeto Hirabayashi, Toyoaki Masukawa
  • Patent number: 5108880
    Abstract: A water soluble alkaline developer composition useful in the development of exposed silver halide photographic material comprised of a developing agent, a sulfite preservative and a small but effective amount of an amino alcohol compound of the formula ##STR1## wherein each R.sub.1 is a C.sub.2 -C.sub.4 alkyl group and R.sub.2 is a moiety having the structure: (R.sub.1 O).sub.x --R.sub.1 OH wherein x is an integer of from 1 to 3, and R.sub.1 is as defined hereinabove.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: April 28, 1992
    Assignee: Sun Chemical Corporation
    Inventor: John L. Adkins
  • Patent number: 5102779
    Abstract: A method for processing silver halide photographic materials comprising the step of: processing imagewise exposed silver halide photographic material using a developer containing at least one compound represented by general formula (X): ##STR1## wherein R.sub.1 and R.sub.2 each represents a hydrogen atom, an alkyl group containing from 2 to 8 carbon atoms, an alkenyl group containing from 3 to 8 carbon atoms, or an aralkyl group containing from 7 to 12 carbon atoms; or R.sub.1 and R.sub.2 are combined to form a ring; R.sub.3, R.sub.4, R.sub.5, and R.sub.6 each represents a hydrogen atom, or an alkyl group containing from 1 to 4 carbon atoms: and n represents an integer from 3 to 20. A developer for processing silver halide photographic materials comprising at least one compound represented by general formula (X), described above. A silver halide photographic material comprising: at least one compound represented by general formula (X'): ##STR2## wherein R'.sub.1 and R'.sub.
    Type: Grant
    Filed: October 12, 1990
    Date of Patent: April 7, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Tetsuro Kojima, Eiichi Okutsu, Kazunobu Katoh
  • Patent number: 5102778
    Abstract: A method for processing a silver halide light-sensitive material comprising subjecting an imagewise exposed silver halide color light-sensitive material having a silver chloride content substantially of 90 mol % or more to color developement in a color developing solution containing a hydrophilic p-phenylenediamine derivative and substantially no benzyl alcohol at a temperature of 30.degree. C. or higher for a period of 15 seconds or less and then subjecting the color developed material to bleach or bleach-fix, wherein the color development processed silver halide color light-sensitive material is introduced into a bleaching or bleach-fix bath with the amount of a color developing agent in the film of the light-sensitive material being controlled to 0.8 mmol/m.sup.2 or less, and wherein the desilvering is completed within 30 seconds.
    Type: Grant
    Filed: November 9, 1990
    Date of Patent: April 7, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Koichi Nakamura
  • Patent number: 5100765
    Abstract: A method for processing a silver halide color photographic material is disclosed which comprises processing an imagewise exposed silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer containing silver halide having a silver iodide content of at least 2 mol % with a color developing solution, wherein said color developing solution contains at least one compound represented by formula (I), bromide ion in an amount of from 1.0.times.10.sup.-2 to 5.0.times.10.sup.-1 mol per liter and iodide ion in an amount of not more than 1.0.times.10.sup.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: March 31, 1992
    Assignee: Fuji Photo Film Co., Ltd.
    Inventor: Hiroshi Fujimoto