Patents by Inventor Yoshitada Aoyama

Yoshitada Aoyama 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 of and apparatus for unfolding a sheet metal part employing a CAD apparatus
    Patent number: 4912644
    Abstract: A method of and apparatus for unfolding a sheet metal part has a three-dimensional scanner which is moved along the profile of a three-dimensional surface model to decompose the three-dimensional surface model into groups of pattern entities. Auxiliary lines interconnecting the end points of pattern entities of the internal shape of the sheet metal part and the end points of the pattern entities of the external shape of the sheet metal pattern including the end points of the pattern entities of the internal shape are produced. An unfolding three-dimensional surface model is constructed by assembling the pattern entities and the auxiliary lines, and then the reconstructed three-dimensional surface model is scanned by the three-dimensional scanner to unfold it into a two-dimensional unfolded pattern.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: March 27, 1990
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Yoshitada Aoyama, Takeshi Haga