Patents by Inventor Satoru Sone

Satoru Sone 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).

  • Controller for variable speed alternating current motor
    Patent number: 7902791
    Abstract: A controller for operating a variable speed alternating current motor using inverters to which power is supplied from two or more power supplies including an energy accumulator has a first inverter for converting direct current supplied from the outside into alternating current, a power supply for accumulating direct current, a second inverter for converting direct current supplied from the power supply into alternating current, and an adder for adding the alternating current voltages outputted from the first and second inverters.
    Type: Grant
    Filed: May 26, 2005
    Date of Patent: March 8, 2011
    Assignee: Mitsubishi Electric Corporation
    Inventors: Hideto Negoro, Satoru Sone
  • Controller For Variable Speed Alternating Current Motor
    Publication number: 20080122393
    Abstract: A controller for operating a variable speed alternating current motor using inverters to which power is supplied from two or more power supplies including an energy accumulator has a first inverter for converting direct current supplied from the outside into alternating current, a power supply for accumulating direct current, a second inverter for converting direct current supplied from the power supply into alternating current, and an adder for adding the alternating current voltages outputted from the first and second inverters.
    Type: Application
    Filed: May 26, 2005
    Publication date: May 29, 2008
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Hideto Negoro, Satoru Sone