Patents by Inventor Tadashige Mazaki

Tadashige Mazaki 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).

  • Sound proof materials for buildings
    Patent number: 4237178
    Abstract: Sound proof materials for buildings are disclosed. This material is prepared by mixing powdery lead with an impregnating resin, a solvent, a plasticizer and the like and then applying them on at least one side of a glass cloth.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: December 2, 1980
    Assignee: Hideo Sakai
    Inventor: Tadashige Mazaki