Patents by Inventor Kumiko Noguchi

Kumiko Noguchi 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).

  • Current driver circuit
    Patent number: 7759978
    Abstract: In a case where potential of the first input terminal is lower than that of the second input terminal by an amount of the offset voltage, in a normal operation mode, the control circuit controls the polarity switching circuit so as to input the first contact voltage of the first contact to the first input terminal and input the control voltage to the second input terminal. On the other hand, in a case where the potential of the first input terminal is higher than that of the second input terminal by an amount of the offset voltage, in the normal operation mode, the control circuit controls the polarity switching circuit so as to input the first contact voltage at the first contact to the second input terminal, input the control voltage to the first input terminal, and invert the polarity of the amplified signal.
    Type: Grant
    Filed: July 13, 2009
    Date of Patent: July 20, 2010
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Maho Kuwahara, Kumiko Noguchi
  • CURRENT DRIVER CIRCUIT
    Publication number: 20100013523
    Abstract: In a case where potential of the first input terminal is lower than that of the second input terminal by an amount of the offset voltage, in a normal operation mode, the control circuit controls the polarity switching circuit so as to input the first contact voltage of the first contact to the first input terminal and input the control voltage to the second input terminal. On the other hand, in a case where the potential of the first input terminal is higher than that of the second input terminal by an amount of the offset voltage, in the normal operation mode, the control circuit controls the polarity switching circuit so as to input the first contact voltage at the first contact to the second input terminal, input the control voltage to the first input terminal, and invert the polarity of the amplified signal.
    Type: Application
    Filed: July 13, 2009
    Publication date: January 21, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Maho Kuwahara, Kumiko Noguchi