Patents by Inventor Yukio Narashima

Yukio Narashima 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 MODULE AND THREE-LEVEL POWER CONVERTER USING THE SAME
    Publication number: 20150078052
    Abstract: A first pair including a highest-outer-side switching element and a switching element that operates as a neutral clamp diode on a higher potential side, a second pair including a lowest-outer-side switching element and a switching element that operates as a neutral clamp diode on a lower potential side, and a third pair including a higher-inner-side switching element and a lower-inner-side switching element are respectively configured from power modules that are two-element-inclusive power modules, a power conversion circuit portion being configured from the first pair, the second pair, and the third pair.
    Type: Application
    Filed: April 26, 2012
    Publication date: March 19, 2015
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Tomohiro Kobayashi, Yukio Narashima, Hideo Okayama