Patents by Inventor Nobuyuki Arasawa

Nobuyuki Arasawa 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).

  • Semiconductor device with solid electrolyte switching
    Patent number: 7767997
    Abstract: A nonvolatile, sophisticated semiconductor device with a small surface area and a simple structure capable of switching connections between three or more electrodes. In a semiconductor device at least one of the electrodes contains atoms such as copper or silver in the solid electrolyte capable of easily moving within the solid electrolyte, and those electrodes face each other and applying a voltage switches the voltage on and off by generating or annihilating the conductive path between the electrodes. Moreover applying a voltage to a separate third electrode can annihilate the conductive path formed between two electrodes without applying a voltage to the two electrode joined by the conductive path.
    Type: Grant
    Filed: July 9, 2008
    Date of Patent: August 3, 2010
    Assignee: Hitachi, Ltd.
    Inventors: Yoshitaka Sasago, Motoyasu Terao, Norikatsu Takaura, Yoshihisa Fujisaki, Tomoyuki Kodama, Nobuyuki Arasawa
  • SEMICONDUCTOR DEVICE
    Publication number: 20090014708
    Abstract: A nonvolatile, sophisticated semiconductor device with a small surface area and a simple structure capable of switching connections between three or more electrodes. In a semiconductor device at least one of the electrodes contains atoms such as copper or silver in the solid electrolyte capable of easily moving within the solid electrolyte, and those electrodes face each other and applying a voltage switches the voltage on and off by generating or annihilating the conductive path between the electrodes. Moreover applying a voltage to a separate third electrode can annihilate the conductive path formed between two electrodes without applying a voltage to the two electrode joined by the conductive path.
    Type: Application
    Filed: July 9, 2008
    Publication date: January 15, 2009
    Inventors: Yoshitaka SASAGO, Motoyasu Terao, Norikatsu Takaura, Yoshihisa Fujisaki, Tomoyuki Kodama, Nobuyuki Arasawa