Patents by Inventor Fumiyasu Sezaki

Fumiyasu Sezaki 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).

  • Patent number: 8518833
    Abstract: The present invention provides a transparent electroconductive oxide layer having a high transmittance and a high electroconductivity and further a thin-film photoelectric converter having a high photoelectric conversion efficiency by applying the transparent electroconductive oxide layer to a transparent electrode layer of a photoelectric converter. The transparent electroconductive oxide layer in the present invention is deposited on a transparent substrate with a first and a second impurities contained in the transparent electroconductive oxide layer, especially in the vicinity of a surface of the layer in a higher concentration, and carbon atoms contained in the vicinity of the surface of the layer, thereby achieving a high transmittance and a high electroconductivity simultaneously and thus solving the problem.
    Type: Grant
    Filed: March 13, 2009
    Date of Patent: August 27, 2013
    Assignee: Kaneka Corporation
    Inventors: Mitsuru Ichikawa, Fumiyasu Sezaki, Kenji Yamamoto
  • Patent number: 8410355
    Abstract: This invention intends to develop a technique for forming an interlayer with excellent optical characteristics and to provide a photoelectric conversion device having high conversion efficiency. To realize this purpose, a series connection through an intermediate layer is formed in the thin-film photoelectric conversion device of the invention, and the interlayer is a transparent oxide layer in its front surface and n pairs of layers stacked therebehind (n is an integer of 1 or more), wherein each of the pair of layers is a carbon layer and a transparent oxide layer stacked in this order. Film thicknesses of each layer are optimized to improve wavelength selectivity and stress resistance while keeping the series resistance.
    Type: Grant
    Filed: October 30, 2008
    Date of Patent: April 2, 2013
    Assignee: Kaneka Corporation
    Inventors: Tomomi Meguro, Mitsuru Ichikawa, Fumiyasu Sezaki, Kunta Yoshikawa, Takashi Kuchiyama, Kenji Yamamoto
  • Publication number: 20130003070
    Abstract: Implemented is a chip for localized surface plasmon resonance sensor, which is able to provide a localized surface plasmon resonance sensor of higher sensitivity. A structure of the invention is characterized by including a planar section and tubular bodies, wherein the tubular bodies are vertically arranged so that openings thereof open at the planar surface of the planar section, an average inner diameter of the openings of the tubular bodies is within a range of from 5 nm to 2,000 nm, a ratio (A/B) of inner diameter A of the openings of the tubular bodies and inner diameter B at the midpoint of the depth from the openings of the tubular bodies is within a range of from 1.00 to 1.80, and the bottom of the tubular bodies is aspherical.
    Type: Application
    Filed: December 8, 2010
    Publication date: January 3, 2013
    Applicant: KANEKA CORPORATION
    Inventors: Fumiyasu Sezaki, Takashi Fukuda
  • Publication number: 20110011461
    Abstract: The present invention provides a transparent electroconductive oxide layer having a high transmittance and a high electroconductivity and further a thin-film photoelectric converter having a high photoelectric conversion efficiency by applying the transparent electroconductive oxide layer to a transparent electrode layer of a photoelectric converter. The transparent electroconductive oxide layer in the present invention is deposited on a transparent substrate with a first and a second impurities contained in the transparent electroconductive oxide layer, especially in the vicinity of a surface of the layer in a higher concentration, and carbon atoms contained in the vicinity of the surface of the layer, thereby achieving a high transmittance and a high electroconductivity simultaneously and thus solving the problem.
    Type: Application
    Filed: March 13, 2009
    Publication date: January 20, 2011
    Applicant: KANEKA CORPORATION
    Inventors: Mitsuru Ichikawa, Fumiyasu Sezaki, Kenji Yamamoto
  • Publication number: 20100243058
    Abstract: This invention intends to develop a technique for forming an interlayer with excellent optical characteristics and to provide a photoelectric conversion device having high conversion efficiency. To realize this purpose, a series connection through an intermediate layer is formed in the thin-film photoelectric conversion device of the invention, and the interlayer is a transparent oxide layer in its front surface and n pairs of layers stacked therebehind (n is an integer of 1 or more), wherein each of the pair of layers is a carbon layer and a transparent oxide layer stacked in this order. Film thicknesses of each layer are optimized to improve wavelength selectivity and stress resistance while keeping the series resistance.
    Type: Application
    Filed: October 30, 2008
    Publication date: September 30, 2010
    Applicant: KANEKA CORPORATION
    Inventors: Tomomi Meguro, Mitsuru Ichikawa, Fumiyasu Sezaki, Kunta Yoshikawa, Takashi Kuchiyama, Kenji Yamamoto