Patents by Inventor Sadanori MIYAJIMA

Sadanori MIYAJIMA 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: 8473232
    Abstract: A measuring apparatus is capable of separately measuring at least one of the purely resistive component and the reactance component of a measured circuit. The measuring apparatus applies an AC voltage to the measured circuit and detects a current flowing in the measured circuit. When doing so, a first detection signal whose amplitude changes in accordance with an amplitude of a real component of the current and a second detection signal whose amplitude changes in accordance with an amplitude of an imaginary component are generated. The at least one of a purely resistive component and a reactance component of the measured circuit is then calculated using the first detection signal and the second detection signal.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: June 25, 2013
    Assignee: Hioko Denki Kabushiki Kaisha
    Inventors: Satoshi Imaizumi, Sadanori Miyajima, Toshiki Takahashi
  • Publication number: 20110184680
    Abstract: A measuring apparatus is capable of separately measuring at least one of the purely resistive component and the reactance component of a measured circuit. The measuring apparatus applies an AC voltage to the measured circuit and detects a current flowing in the measured circuit. When doing so, a first detection signal whose amplitude changes in accordance with an amplitude of a real component of the current and a second detection signal whose amplitude changes in accordance with an amplitude of an imaginary component are generated. The at least one of a purely resistive component and a reactance component of the measured circuit is then calculated using the first detection signal and the second detection signal.
    Type: Application
    Filed: January 19, 2011
    Publication date: July 28, 2011
    Applicant: HIOKI DENKI KABUSHIKI KAISHA
    Inventors: Satoshi IMAIZUMI, Sadanori MIYAJIMA, Toshiki TAKAHASHI