Patents by Inventor Tatuhisa Kitasin

Tatuhisa Kitasin 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).

  • Power converter and method of controlling the same
    Patent number: 4876637
    Abstract: A power converter converts AC input power into AC output power to which a load is connected. This power converter comprises a controller for controlling power converting operation of the power converter, a DC voltage detector for detecting a DC voltage of the DC power to provide a DC voltage signal, a first reference generator for generating a first reference, an output detector for detecting a condition of the AC output power to provide an output condition signal, a second reference generator for generating a second reference in response to the output condition signal, a condition detector for detecting a condition of the AC input power to provide an output condition signal, and a selector for supplying the second reference to the controller when the input condition signal is provided.
    Type: Grant
    Filed: March 21, 1989
    Date of Patent: October 24, 1989
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Tadao Mose, Yasuhiro Andoh, Tatuhisa Kitasin