Patents by Inventor Junichi Fukawa

Junichi Fukawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20080102406
    Abstract: Disclosed is a light sensitive planographic printing plate material comprising a support and provided thereon, a light sensitive layer containing a spectral sensitizer, a polymerization initiator, a polymerizable monomer and a polymeric binder, wherein the light sensitive planographic printing plate material comprises a surfactant represented by the following formula (SF1) or (SF2), R1—O—(R2—O)n—H ??Formula (SF1) R3O—[CH2CH(CH3)O]l(CH2CH2O)m—H ??Formula (SF2)
    Type: Application
    Filed: October 26, 2007
    Publication date: May 1, 2008
    Inventor: Junichi FUKAWA
  • Publication number: 20070247503
    Abstract: An actinic radiation curable type inkjet ink is characterized in that the actinic radiation curable type inject ink contains an onium salt as a photolytically acid generating compound that does not produce benzene when exposed to actinic radiation, and a compound including an oxetane ring as a photo-polymerizable compound, wherein a water content by Karl Fischer method is 1.50 through 5.00 percent by mass.
    Type: Application
    Filed: May 26, 2005
    Publication date: October 25, 2007
    Applicant: KONICA MINOLTA MEDICAL & GRAPHIC, INC.
    Inventors: Junichi Fukawa, Satoshi Masumi
  • Patent number: 6479199
    Abstract: A method of processing a silver halide photographic material is disclosed, comprising on a support a light sensitive silver halide emulsion layer, wherein the light-sensitive layer contains a spectral-sensitizing dye represented by formula (1-a); a developer solution contains a developing agent represented by formula (A); and the replenishing rate of a processing solution is determined based on the proportion of an exposed area per unit area of the photographic material to perform replenishment.
    Type: Grant
    Filed: January 29, 2001
    Date of Patent: November 12, 2002
    Assignee: Konica Corporation
    Inventor: Junichi Fukawa
  • Publication number: 20020009665
    Abstract: A method of processing a silver halide photographic material is disclosed, comprising on a support a light sensitive silver halide emulsion layer, wherein the light-sensitive layer contains a spectral-sensitizing dye represented by formula (1-a); a developer solution contains a developing agent represented by formula (A); and the replenishing rate of a processing solution is determined based on the proportion of an exposed area per unit area of the photographic material to perform replenishment.
    Type: Application
    Filed: January 29, 2001
    Publication date: January 24, 2002
    Inventor: Junichi Fukawa
  • Patent number: 5837418
    Abstract: A silver halide black-and-white photographic light sensitive material is disclosed, comprising a support provided thereon a silver halide emulsion layer and provided farther from the support another higher-sensitive silver halide emulsion layer, wherein both silver halide emulsion layers each have a coating weight of silver of not less than 0.5 g/m.sup.2 and are sensitized substantially to the same spectral region; at least two, different hydrazine compounds being contained in the silver halide emulsion layers or another photographic component layer.
    Type: Grant
    Filed: April 23, 1996
    Date of Patent: November 17, 1998
    Assignee: Konica Corporation
    Inventors: Takeo Arai, Junichi Fukawa
  • Patent number: 5766820
    Abstract: A silver halide photographic light sensitive material is disclosed which comprises a support and provided thereon, a hydrophilic colloid layer comprising at least one silver halide emulsion layer and at least one non-light sensitive layer, the hydrophilic colloid layer being hardened with at least one hardener selected from the group consisting of a carboxyl active hardener, a vinylsulfone type hardener, an epoxy type hardener and a triazine type hardener, wherein a silver halide emulsion layer closest to the support of the silver halide emulsion layers contains a dye in the form of dispersed solid particles or a non-light sensitive layer closest to the support of the non-light sensitive hydrophilic colloid layers contains a dye in the form of dispersed solid particles, and the thickness swell percentage of the photographic component layer is 10 to 100%.
    Type: Grant
    Filed: December 12, 1996
    Date of Patent: June 16, 1998
    Assignee: Konica Corporation
    Inventors: Junichi Fukawa, Seiji Hidaka, Takeo Arai
  • Patent number: 5591561
    Abstract: A method for processing a black-and-white silver halide photographic light-sensitive material comprising the steps of(1) developing an imagewise exposed black-and-white silver halide photographic light-sensitive material with a developing solution in the presence of a complex forming compound,(2) fixing with a fixing solution,(3) washing or stabilizing with water or a stabilizing solution, respectively, and(4) drying the washed or stabilized light-sensitive material,wherein the light-sensitive material comprises a support and at least one silver halide emulsion layer and optionally one or more non-light-sensitive hydrophilic colloid layers provided on a first side of the support, and a layer provided on the second side opposite to the fist side of the support, and at least one of the silver halide emulsion layer and the non-light sensitive hydrophilic layer adjacent to the silver halide emulsion layer provided on the first side of the support contains a hydrazine compound, at least one of the silver halide em
    Type: Grant
    Filed: February 9, 1996
    Date of Patent: January 7, 1997
    Assignee: Konica Corporation
    Inventors: Takeo Arai, Junichi Fukawa
  • Patent number: 5441847
    Abstract: A method of processing, by use of an automatic processor, a black-and-white silver halide photographic light-sensitive material containing a hydrazine compound and a redox compound capable of releasing an inhibitor upon oxidation, wherein a developer is replenished by a developer replenisher at a rate of not more than 200 ml per m.sup.2 of the photographic material, and the developer has a pH of 9.5 to 10.8. The developer further contains a compound represented by the following formulas [1], [2] or [3].
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: August 15, 1995
    Assignee: Konica Corporation
    Inventors: Junichi Fukawa, Takeshi Sampei, Kenji Goto
  • Patent number: 5238800
    Abstract: Disclosed is a silver halide photographic light-sensitive material that comprises a support having thereon at least one silver halide light-sensitive emulsion layer, wherein emulsion layer is spectrally sensitized; the back coating layer side of said light-sensitive material has a specific surface resistance of 1 10.sup.9 to 1 10.sup.12 .OMEGA.at 25.degree. C. and 25% RH; and said light-sensitive photographic material curls in the direction of said back coating layer side. The silver halide photographic light-sensitive material according to this invention does not undergo jamming even in electrostatic charge adsorption type cameras, and is improved in anti-static property.
    Type: Grant
    Filed: November 21, 1991
    Date of Patent: August 24, 1993
    Assignee: Konica Corporation
    Inventors: Yuji Hosoi, Junichi Fukawa, Akira Kobayashi
  • Patent number: 4988603
    Abstract: A processing method for silver halide photographic material is disclosed, which stably provides images having high contrast and high dot quality with little degradation in sensitivity by rapid processing.
    Type: Grant
    Filed: December 21, 1988
    Date of Patent: January 29, 1991
    Assignee: Konica Corporation
    Inventors: Yasuhiko Takamuki, Takeshi Habu, Junichi Fukawa
  • Patent number: H1090
    Abstract: Disclosed is a light-sensitive silver halide photographic material having a hydrophilic colloid layer containing at least one layer of a light-sensitive silver halide emulsion layer provided on a support, wherein a hydrazide derivative is contained in the light-sensitive silver halide emulsion layer, and the above hydrophilic colloid layer contains at least one of the compounds represented by Formulae [II] and [III] shown below: ##STR1## wherein R1, R2 and R3 are as defined in the specification, ##STR2## wherein R1 and R2 are as defined in the specification.
    Type: Grant
    Filed: November 27, 1990
    Date of Patent: August 4, 1992
    Assignee: Konica Corporation
    Inventors: Junichi Fukawa, Takeshi Habu
  • Patent number: H1091
    Abstract: There is disclosed a light-sensitive silver halide photographic material which comprises, in a light-sensitive silver halide photographic material provided by coating at least one layer of hydrophilic colloidal layer including light-sensitive silver halide photographic emulsion layer on a support, containing a specific hydrazide derivative in the light-sensitive silver halide emulsion layer and containing, in the hydrophilic colloidal layer, at least one compound selected from each of the groups A and B consisting of the compounds represented by the formulae (II) to (VII) as specified in the specification.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: August 4, 1992
    Assignee: Konica Corporation
    Inventors: Yasuhiko Takamuki, Junichi Fukawa, Takeshi Habu