Patents by Inventor Yoshiaki Fujinawa

Yoshiaki Fujinawa 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).

  • Electrochemical sensor and method for manufacturing same
    Patent number: 8858768
    Abstract: The present invention provides an electrochemical sensor comprising a substrate, an electrically conductive layer made of carbon particles which is disposed on the substrate, a cell membrane mimetic structure layer containing an enzyme at least one of inside the cell membrane mimetic structure layer and on the interface of the cell membrane mimetic structure layer which is disposed on the electrically conductive layer.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: October 14, 2014
    Assignee: ARKRAY, Inc.
    Inventors: Koji Katsuki, Yoshiaki Fujinawa, Masashi Tsukada, Yosuke Murase
  • Enzyme electrode
    Patent number: 8784624
    Abstract: The present invention relates to an enzyme electrode including: a carbon particle; a metal particle held on the carbon particle, the metal particle having a catalytic activity against a redox reaction; a redox enzyme. The enzyme electrode of the present invention further includes a high-resistance particle enhancing an electrical resistance, the high-resistance particle being chemically stable. The high-resistance particle contains an inorganic substance, for example. The inorganic substance is aluminum oxide or smectite, for example.
    Type: Grant
    Filed: July 11, 2007
    Date of Patent: July 22, 2014
    Assignee: Arkray, Inc.
    Inventors: Koji Katsuki, Konomu Hirao, Kenji Nagakawa, Masashi Okamoto, Yoshiaki Fujinawa
  • Electrochemical Sensor and Method for Manufacturing Same
    Publication number: 20110308944
    Abstract: The present invention provides an electrochemical sensor comprising a substrate, an electrically conductive layer made of carbon particles which is disposed on the substrate, a cell membrane mimetic structure layer containing an enzyme at least one of inside the cell membrane mimetic structure layer and on the interface of the cell membrane mimetic structure layer which is disposed on the electrically conductive layer.
    Type: Application
    Filed: February 4, 2010
    Publication date: December 22, 2011
    Applicant: ARKRAY, Inc.
    Inventors: Koji Katsuki, Yoshiaki Fujinawa, Masashi Tsukada, Yosuke Murase
  • Enzyme electrode
    Publication number: 20100187107
    Abstract: The present invention relates to an enzyme electrode including: a carbon particle; a metal particle held on the carbon particle, the metal particle having a catalytic activity against a redox reaction; a redox enzyme. The enzyme electrode of the present invention further includes a high-resistance particle enhancing an electrical resistance, the high-resistance particle being chemically stable. The high-resistance particle contains an inorganic substance, for example. The inorganic substance is aluminum oxide or smectite, for example.
    Type: Application
    Filed: July 11, 2007
    Publication date: July 29, 2010
    Applicant: ARKRAY, INC.
    Inventors: Koji Katsuki, Konomu Hirao, Kenji Nagakawa, Masashi Okamoto, Yoshiaki Fujinawa