Patents by Inventor Kyoji Takahara

Kyoji Takahara 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).

  • Shape modeling system
    Patent number: 4858150
    Abstract: A shape modeling method of the interactive operation type for generating a 3-dimensional shape of an object using 2-dimensional wire-frame figures formed by a drawing system, which inputs 2-dimensional coordinate system data of a hierarchical structure that can be drawn into 2-dimensional wire-frame figures.
    Type: Grant
    Filed: March 16, 1987
    Date of Patent: August 15, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Tamio Aizawa, Kyoji Takahara
  • Geometric modelling system
    Patent number: 4845651
    Abstract: A geometric modelling system having a display device which displays two-dimensional wire frame pattern representing surfaces which constitute a three-dimensional form as an object, and an operation unit which automatically forms, as the user appoint a point within the two-dimensional wire frame pattern, a definite surface or boundaries of the definite surface with high matching property, while confirming the completeness of various states such as double-definition of a constituent line, states of intersection, and so forth, so as to satisfy various geometric conditions.
    Type: Grant
    Filed: November 3, 1986
    Date of Patent: July 4, 1989
    Assignee: Hitachi, Ltd.
    Inventors: Tamio Aizawa, Kyoji Takahara, Koichi Yamato