Patents by Inventor Hidekazu Kawasaki

Hidekazu Kawasaki 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: 20220402290
    Abstract: The present invention provides a precoating agent which is used in an image forming method using an active ray curable ink and which is applied to a surface of a recording medium before the active ray curable ink is applied, the precoating agent comprising a crystalline resin and an active ray polymerizable compound.
    Type: Application
    Filed: June 9, 2022
    Publication date: December 22, 2022
    Inventors: Daisuke KODAMA, Naoko UEMURA, Hidekazu KAWASAKI
  • Patent number: 10324391
    Abstract: The present invention provides means for improving the softening rate in photoirradiation and image fixation property. The toner according to the present invention includes an azobenzene derivative represented by the following chemical formula (1), and in the chemical formula (1), R1 to R10 in the following are groups defined in claim 1.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 18, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Seijiro Takahashi, Hidekazu Kawasaki
  • Patent number: 10208245
    Abstract: The present invention provides a semiconductor nanoparticle assembly having improved luminous efficiency, heat resistance, and oxidation resistance, and a method for manufacturing the same. The present invention relates to a semiconductor nanoparticle assembly which includes an aggregate having a plurality of coated semiconductor nanoparticles aggregated, said coated semiconductor nanoparticles each containing a semiconductor nanoparticle having a core/shell structure and a translucent coating layer having a thickness of 3 nm or more and 15 nm or less for coating the semiconductor nanoparticle.
    Type: Grant
    Filed: May 21, 2015
    Date of Patent: February 19, 2019
    Assignee: KONICA MINOLTA, INC.
    Inventors: Kazuyoshi Goan, Hidekazu Kawasaki, Yoichi Fujieda
  • Publication number: 20180217518
    Abstract: The present invention provides means for improving the softening rate in photoirradiation and image fixation property. The toner according to the present invention includes an azobenzene derivative represented by the following chemical formula (1), and in the chemical formula (1), R1 to R10 in the following are groups defined in claim 1.
    Type: Application
    Filed: January 9, 2018
    Publication date: August 2, 2018
    Inventors: Seijiro Takahashi, Hidekazu Kawasaki
  • Publication number: 20170210981
    Abstract: The present invention provides a semiconductor nanoparticle assembly having improved luminous efficiency, heat resistance, and oxidation resistance, and a method for manufacturing the same. The present invention relates to a semiconductor nanoparticle assembly which includes an aggregate having a plurality of coated semiconductor nanoparticles aggregated, said coated semiconductor nanoparticles each containing a semiconductor nanoparticle having a core/shell structure and a translucent coating layer having a thickness of 3 nm or more and 15 nm or less for coating the semiconductor nanoparticle.
    Type: Application
    Filed: May 21, 2015
    Publication date: July 27, 2017
    Inventors: Kazuyoshi GOAN, Hidekazu KAWASAKI, Yoichi FUJIEDA
  • Publication number: 20160272883
    Abstract: An object is to provide a coated semiconductor nanoparticle having sufficient fluorescence intensity. A method for manufacturing a coated semiconductor nanoparticle according to the present invention relates to a method for manufacturing a coated semiconductor nanoparticle containing a semiconductor nanoparticle having a core/shell structure and a translucent coating layer containing silicon coating the semiconductor nanoparticle. The method includes a step of bringing the semiconductor nanoparticle into contact with a silane compound in the presence of an antioxidant and that the antioxidant contains at least one kind selected from the group consisting of compounds containing at least one of a phosphor atom and a sulfur atom and no hydroxy group.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 22, 2016
    Inventors: Chigusa YAMANE, Kazuyoshi GOAN, Hidekazu KAWASAKI, Tsuneo KASHIWAGI, Yoichi FUJIEDA
  • Publication number: 20150380172
    Abstract: The present invention has an object to provide a photoelectric conversion element exhibiting excellent photoelectric conversion efficiency. The photoelectric conversion element of the invention is a photoelectric conversion element which includes a substrate, a first electrode, a photoelectric conversion layer containing a semiconductor and a sensitizing dye, a charge transport layer and a second electrode and characterized in that the sensitizing dye is represented by the following Formula (1).
    Type: Application
    Filed: February 10, 2014
    Publication date: December 31, 2015
    Inventors: Hidekazu KAWASAKI, Hideya MIWA
  • Patent number: 9202636
    Abstract: A photoelectric conversion element comprising: a substrate; a first electrode; a photoelectric conversion layer comprising a semiconductor layer containing a dye and a semiconductor and a charge transport layer; and a second electrode, in this order, wherein the photoelectric conversion layer comprises a compound represented by Formula (1), wherein R1 and R2 each represent a hydrogen atom or an alkyl group which may have a substituent, X, Y and Z each represent a hydrogen atom or a substituent, wherein at least one of X, Y and Z is an electron withdrawing group.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: December 1, 2015
    Assignee: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Takayuki Ishikawa, Kazuya Isobe, Hidekazu Kawasaki
  • Patent number: 9190617
    Abstract: An all solid-state dye sensitizing type photoelectric conversion element excellent in photoelectric conversion efficiency and stability of photoelectric conversion function due to the prevention of desorption of the dye, and a solar cell comprising the photoelectric conversion element are provided. The present invention relates to a photoelectric conversion element comprising a first electrode, a photoelectric conversion layer comprising a semiconductor and a sensitizing dye, and a solid hole transport layer, and a second electrode, on a substrate, wherein the sensitizing dye is represented by the general formula (1) and the solid hole transport layer comprises a polymer obtainable by polymerizing a compound represented by the following general formula (2) or a multimer of the compound.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: November 17, 2015
    Assignee: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Hideya Miwa, Masahiko Kurachi, Hidekazu Kawasaki, Kazukuni Nishimura
  • Patent number: 9099657
    Abstract: Provided is a photoelectric conversion element containing at least: a semiconductor layer containing a semiconductor and a dye which is supported by the semiconductor, and a hole transport layer containing a hole transport compound, wherein the dye is a compound represented by Formula (1), and the hole transport compound is a polymer made from 3,4-ethylenedioxythiophene:
    Type: Grant
    Filed: September 27, 2011
    Date of Patent: August 4, 2015
    Assignee: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Kazuya Isobe, Kenichi Onaka, Hidekazu Kawasaki
  • Patent number: 8668846
    Abstract: A dye-sensitized photoelectric conversion element, comprises a pair of electrodes arranged opposite to each other; a semiconductor layer including a semiconductor supporting a sensitizing dye; and an electrolyte layer. At least the semiconductor layer and the electrolyte layer are provided between the pair of electrodes, and the sensitizing dye contains a compound represented by the following Formula (1).
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: March 11, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Hidekazu Kawasaki, Akihiko Itami, Kazuya Isobe, Hideya Miwa, Kazukuni Nishimura, Mayuko Ushiro
  • Patent number: 8471143
    Abstract: Provided is a photoelectric conversion element containing a pair of opposite electrodes having therebetween: a semiconductor layer containing a sensitizing dye which is supported by a semiconductor; and a charge transport layer, wherein the sensitizing dye is a compound represented by Formula (1),
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: June 25, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Hidekazu Kawasaki, Akihiko Itami, Kazuya Isobe, Hideya Miwa, Kazukuni Nishimura, Mayuko Ushiro
  • Publication number: 20130125987
    Abstract: The object is to provide a photoelectric conversion element having excellent photoelectric conversion efficiency, and high durability.
    Type: Application
    Filed: November 9, 2012
    Publication date: May 23, 2013
    Inventors: Hidekazu KAWASAKI, Kazukuni NISHIMURA, Hideya MIWA
  • Patent number: 8410356
    Abstract: Provided is a photoelectric conversion element for which a novel compound (dye) exhibiting excellent adsorption to an oxide semiconductor and exhibiting high photoelectric conversion efficiency is used, and also provided is a solar cell employing the photoelectric conversion element. Disclosed is a dye-sensitizing type photoelectric conversion element possessing at least a pair of facing electrodes, a semiconductor layer possessing a semiconductor and a sensitizing dye supported on the semiconductor, and a charge transport layer, wherein the semiconductor layer and the charge transport layer are provided between the facing electrodes, and wherein the sensitizing dye comprises a compound represented by the following Formula (1).
    Type: Grant
    Filed: April 13, 2010
    Date of Patent: April 2, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Hidekazu Kawasaki, Akihiko Itami, Kazuya Isobe, Hideya Miwa, Kazukuni Nishimura, Mayuko Ushiro
  • Patent number: 8395041
    Abstract: Disclosed is a photoelectric conversion element comprising a conductive support and provided thereon, a semiconductor layer, a charge transporting layer and an opposed electrode, the semiconductor layer comprising a semiconductor with a dye, wherein the dye is a compound represented by the following formula (1).
    Type: Grant
    Filed: April 12, 2010
    Date of Patent: March 12, 2013
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Hidekazu Kawasaki, Akihiko Itami, Kazuya Isobe, Hideya Miwa, Kazukuni Nishimura, Mayuko Ushiro
  • Publication number: 20130025682
    Abstract: An all solid-state dye sensitizing type photoelectric conversion element excellent in photoelectric conversion efficiency and stability of photoelectric conversion function due to the prevention of desorption of the dye, and a solar cell comprising the photoelectric conversion element are provided. The present invention relates to a photoelectric conversion element comprising a first electrode, a photoelectric conversion layer comprising a semiconductor and a sensitizing dye, and a solid hole transport layer, and a second electrode, on a substrate, wherein the sensitizing dye is represented by the general formula (1) and the solid hole transport layer comprises a polymer obtainable by polymerizing a compound represented by the following general formula (2) or a multimer of the compound.
    Type: Application
    Filed: July 25, 2012
    Publication date: January 31, 2013
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Hideya MIWA, Masahiko KURACHI, Hidekazu KAWASAKI, Kazukuni NISHIMURA
  • Patent number: 8247687
    Abstract: Provided are a newly developed dye-sensitizing type photoelectric conversion element employing a highly durable sensitizing dye, exhibiting high photoelectric conversion efficiency, and a solar cell fitted with the photoelectric conversion element. Also disclosed is a photoelectric conversion element comprising a compound represented by Formula (1) between a pair of facing electrodes.
    Type: Grant
    Filed: April 2, 2009
    Date of Patent: August 21, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Hideya Miwa, Akihiko Itami, Kazuya Isobe, Kazukuni Nishimura, Hidekazu Kawasaki, Mayuko Ushiro
  • Patent number: 8242355
    Abstract: A photoelectric conversion element having a pair of electrodes, and a semiconductor layer comprising a semiconductor carrying a dye and an electrolyte layer is disclosed.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: August 14, 2012
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Kazukuni Nishimura, Akihiko Itami, Fumitaka Mochizuki, Hideya Miwa, Hidekazu Kawasaki
  • Publication number: 20120152356
    Abstract: A photoelectric conversion element comprising: a substrate; a first electrode; a photoelectric conversion layer comprising a semiconductor layer containing a dye and a semiconductor and a charge transport layer; and a second electrode, in this order, wherein the photoelectric conversion layer comprises a compound represented by Formula (1), wherein R1 and R2 each represent a hydrogen atom or an alkyl group which may have a substituent, X, Y and Z each represent a hydrogen atom or a substituent, wherein at least one of X, Y and Z is an electron withdrawing group.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 21, 2012
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Takayuki ISHIKAWA, Kazuya ISOBE, Hidekazu KAWASAKI
  • Publication number: 20120085411
    Abstract: Provided is a photoelectric conversion element containing at least: a semiconductor layer containing a semiconductor and a dye which is supported by the semiconductor, and a hole transport layer containing a hole transport compound, wherein the dye is a compound represented by Formula (1), and the hole transport compound is a polymer made from 3,4-ethylenedioxythiophene:
    Type: Application
    Filed: September 27, 2011
    Publication date: April 12, 2012
    Applicant: KONICA MINOLTA BUSINESS TECHNOLOGIES, INC.
    Inventors: Kazuya ISOBE, Kenichi ONAKA, Hidekazu KAWASAKI