Patents by Inventor Kohki Anzawa

Kohki Anzawa 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: 6167802
    Abstract: A sliding frame press utilizing a single pressure generating actuator to simultaneously apply the same uniform load to opposite sides of a workpiece. Two posts integral to sliding frame part 2 are freely and movably supported at the upper surface and within a post guide part located at both sides of frame base 5. Pressure is exerted on pressure rod 7 by the force applied at actuator 6. When the pressure applied to pressure rod 7 by actuator 6 exceeds the free weight of sliding frame part 2, a reactive force generated from pressure rod 7 operates to raise sliding frame part 2, thus simultaneously applying a uniform load to opposing sides of the workpiece located between pressure rod 7 and the lower punch 9 operatively connected to the sliding frame part 2.
    Type: Grant
    Filed: March 2, 1999
    Date of Patent: January 2, 2001
    Assignees: Tsutomu Yamamoto
    Inventor: Kohki Anzawa