Patents by Inventor Yuji Nezu

Yuji Nezu 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).

  • Burr trimming method and apparatus for machining shock testing pieces, and automatic machining system thereof
    Patent number: 5192175
    Abstract: Burrs which have formed on a testing piece during machining a groove or notch in the testing piece can be removed by a method of using machining wherein a cutting edge is pressed onto a surface of the testing piece where the burrs have formed, and is moved in this condition from an opening of the groove along the testing piece to trim these burrs off. A tool employed to carry out this method comprises a body including a cushion mechanism, a holder which is supported on one surface of this body through the cushion mechanism, and the cutting edge which is fixed to this holder.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: March 9, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Morio Oosawa, Takeo Ikeda, Yuji Nezu, Yosio Kamijyo