Patents by Inventor Yutaka Aiga

Yutaka Aiga 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).

  • Shielding sheet for blasting operation
    Patent number: 5076168
    Abstract: A shielding sheet for blasting operations which comprises a fabric for shielding a site to be destructed by a blasting operation, said fabric composed of a yarn of polyethylene fiber having a tensile strength of not less than 15 g/d, a tensile modulus of not less than 400 g/d and a total denier of not less than 600, and a weight of said fabric being not less than 130 g/m.sup.2.
    Type: Grant
    Filed: February 15, 1990
    Date of Patent: December 31, 1991
    Assignee: Toyo Boseki Kabushiki Kaisha
    Inventors: Ichiro Yoshida, Yutaka Aiga