Patents by Inventor Atsuhshi Yamada

Atsuhshi Yamada 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).

  • Topology determination, decomposable shape generation, and structured mesh generation
    Patent number: 7714867
    Abstract: Enables efficient correction of topological consistency of an input three-dimensional shape approximated in a spatial graph. Structured mesh generation systems of the present invention include: a topology determination apparatus for reading shape data from a shape data storage device to determine topological consistency and outputting data for solving a problem about topological consistency; a decomposable shape generation apparatus for reading the data outputted by the topology determination apparatus, changing a constraint condition of an integer programming problem solver to execute a shape correction process and outputting corrected shape data; and a structured mesh generation apparatus for reading the corrected shape data to generate a structured mesh.
    Type: Grant
    Filed: September 16, 2008
    Date of Patent: May 11, 2010
    Assignee: International Business Machines Corporation
    Inventors: Jun Doi, Keisuke Inoue, Atsuhshi Yamada
  • TOPOLOGY DETERMINATION, DECOMPOSABLE SHAPE GENERATION, AND STRUCTURED MESH GENERATION
    Publication number: 20090128559
    Abstract: Enables efficient correction of topological consistency of an input three-dimensional shape approximated in a spatial graph. Structured mesh generation systems of the present invention include: a topology determination apparatus for reading shape data from a shape data storage device to determine topological consistency and outputting data for solving a problem about topological consistency; a decomposable shape generation apparatus for reading the data outputted by the topology determination apparatus, changing a constraint condition of an integer programming problem solver to execute a shape correction process and outputting corrected shape data; and a structured mesh generation apparatus for reading the corrected shape data to generate a structured mesh.
    Type: Application
    Filed: September 16, 2008
    Publication date: May 21, 2009
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jun Doi, Keisuke Inoue, Atsuhshi Yamada