Patents by Inventor Kenechi Hirotsu

Kenechi Hirotsu 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 LINE COMMUNICATION DEVICE, POWER SUPPLY CIRCUIT WITH COMMUNICATION FUNCTION, ELECTRICAL APPLIANCE, AND CONTROL AND MONITORING SYSTEM
    Publication number: 20120128081
    Abstract: To realize a transmission function of power line communication by a further simplified and cost-effective circuit configuration, in a PLC modem installed in an electric appliance such as a household electrical appliance. A semiconductor switching element that is present on an electric circuit connected to a power line is driven by a modulator unit. The modulator unit controls ON/OFF operations of the semiconductor switching element, to thereby cause a communication signal of a modulated rectangular wave to be output to the power line for a prescribed period.
    Type: Application
    Filed: August 4, 2010
    Publication date: May 24, 2012
    Inventors: Takashi Hikihara, Tsuguhiro Takuno, Kenechi Hirotsu, Takefumi Shimoguchi, Toshikazu Shibata, Takashi Tsuno, Satoshi Hatsukawa