Patents by Inventor Tokuhichi Yamazaki

Tokuhichi Yamazaki 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).

  • Apparatus for shaping the center space of toilet rolls
    Patent number: 5474436
    Abstract: A method and apparatus for shaping the center space of toilet rolls by inserting a shaping core into each end of the center space, and then withdrawing the cores. The diameter of each shaping core decreases toward the front end of the core.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: December 12, 1995
    Inventor: Tokuhichi Yamazaki