Patents by Inventor Masami Kasuga

Masami Kasuga 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).

  • Method and an apparatus of driving an article and extracting by strain energy
    Patent number: 4159039
    Abstract: The invention is to drive an article into an object or extract it therefrom by means of strain energy.The article is provided at its top with an elastic part having a reaction material for giving a tensile strain or a compressive strain to the elastic part via the reaction material in order to accumulate the strain energy in the elastic part.For carrying out the driving operation, the strain energy is abruptly released from the top of the elastic part, otherwise the compressive strain is abruptly released from the bottom of the elastic part. The strain energy is transformed into a kinetic energy and the article is struck on its head by this kinetic energy so that a compressive strain wave is generated in the article being driven.For carrying out the extracting operation, the compressive strain is abruptly released from the top of the elastic part, otherwise the tensile strain is abruptly released from the bottom of the elastic part.
    Type: Grant
    Filed: May 3, 1978
    Date of Patent: June 26, 1979
    Assignee: Nippon Kokan Kabushiki Kaisha
    Inventors: Masami Kasuga, Tetsuzo Hirose, Tsunematsu Yoshida, Toshio Shinohara