Patents by Inventor Satoru Matsumi

Satoru Matsumi 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).

  • Method and apparatus for measuring thickness of clad steel
    Patent number: 4334433
    Abstract: A method and apparatus for measuring the thicknesses of a cladding layer and a base metal layer by applying ultrasonic waves on the side of a sample opposite the cladding layer. The reflected waves are sensed and displayed on an oscilloscope. Using a disclosed technique for eliminating noise and interference, the position of the interface between the cladding layer and base metal layer are measured from a pulse produced due to the discontinuity of acoustic impedance at the interface.
    Type: Grant
    Filed: May 20, 1980
    Date of Patent: June 15, 1982
    Assignee: Japan Steel Works, Ltd.
    Inventors: Shizuo Takahashi, Satoru Matsumi, Toshiyuki Sugiyama, Susumu Takeda