Patents by Inventor Akira Koshiyama

Akira Koshiyama 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).

  • Device for generating error path list and method of extracting the worst paths
    Patent number: 5815655
    Abstract: A device for generating an error path list for analyzing delay times of paths generating errors, which paths connect first nodes with second nodes, includes a reading unit for reading information on the paths and the delay times thereof, a representative-path extraction unit for extracting worst paths in terms of the delay times as representative paths by using the information, and an output unit for generating the error path list reporting the representative paths.
    Type: Grant
    Filed: February 28, 1997
    Date of Patent: September 29, 1998
    Assignee: Fujitsu Limited
    Inventor: Akira Koshiyama