Patents by Inventor Kentaro Inomata

Kentaro Inomata 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).

  • Publication number: 20140117917
    Abstract: A matrix converter includes: a power conversion unit provided between an AC power supply and a rotational machine; and a controller for performing power conversion control therebetween by controlling the power conversion unit. The power conversion unit includes multiple bidirectional switches each of which has at least one first directional switching element and at least one second directional switching element. Further, the controller includes a first drive control unit performing the power conversion by simultaneously turning on both of the first directional switching element and the second directional switching element, and a second drive control unit performing the power conversion by turning on one of the first directional switching element and the second directional switching element.
    Type: Application
    Filed: September 19, 2013
    Publication date: May 1, 2014
    Applicant: KABUSHIKI KAISHA YASKAWA DENKI
    Inventors: Kotaro TAKEDA, Eiji WATANABE, Takashi TANAKA, Kentaro INOMATA, Hidenori HARA, Takuya NAKA, Wataru YOSHINAGA
  • Patent number: 4985140
    Abstract: There is here disclosed an apparatus for continuously measuring on an on-line system a flash point of an intermediate fraction such as kerosene in a petroleum distillation process from a difference between gas concentrations of the intermediate fraction at two predetermined temperatures; and a method for controlling the flash point of the intermediate fraction from the thus measured value.
    Type: Grant
    Filed: August 24, 1988
    Date of Patent: January 15, 1991
    Assignee: Nippon Oil Company, Ltd.
    Inventors: Naohide Saito, Shohei Shibuya, Kentaro Inomata