Patents by Inventor Masauki Hisataka

Masauki Hisataka 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).

  • Patent number: 4446576
    Abstract: This invention relates to a safe guard protective equipment for fighting arts which protects the face and head of fighters in various fighting arts, and is constituted from a resilient cover body formed on the front with a viewing window for securing sufficient breathing and field of view for the wearer and covering the periphery of face and the sides of head and a protective mask secured fixedly to the front of the cover body to cover the viewing window, having a spherical viewing portion and formed of transparent anti-shock synthetic resin, and characterized in that the protective mask is individually provided in the lower half and the outer periphery of the viewing portion with vent holes and ventilating windows to exhaust the breathes of the wearer to the outside.
    Type: Grant
    Filed: November 2, 1981
    Date of Patent: May 8, 1984
    Inventor: Masauki Hisataka