Patents by Inventor Nobumitsu Ishikawa

Nobumitsu Ishikawa 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).

  • Output control systems of combined cycle type electric power generating systems
    Patent number: 4491737
    Abstract: In a combined cycle type electric power generation system including a plurality of shafts each coupling together a gas turbine, a steam turbine and an electric generator, there is provided an output control system including a plurality of control apparatus for respective shafts. Each apparatus is contracted such that in response to an output command from a central power dispatching station or an output of a load setter, a frequency deviation and a total load of the system and load of each shaft, the total load is equally or unequally distributed among respective shafts.
    Type: Grant
    Filed: July 8, 1983
    Date of Patent: January 1, 1985
    Assignee: Tokyo Shibaura Denki Kabushiki Kaisha
    Inventors: Nobumitsu Ishikawa, Hiroshi Takaoka, Hiroshi Fukuda