Patents by Inventor Takenobu Shima

Takenobu Shima 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).

  • Blades for axial fans
    Patent number: 4738594
    Abstract: A fan blade in which a leading edge piece made of a hard sintered product is attached to the leading edge of a fan blade main body over along substantially 3/4 to 1/4 from the tip thereof so that a useful life of the fan blade is prolonged.
    Type: Grant
    Filed: February 5, 1986
    Date of Patent: April 19, 1988
    Assignee: Ishikawajima-Harima Jukogyo Kabushiki Kaisha
    Inventors: Shojiro Sato, Yukio Shinozaki, Toshikazu Murayama, Takenobu Shima, Takuo Ueno