Patents by Inventor Akihisa Shoen

Akihisa Shoen 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 and apparatus for circuit conversion for simulation, simulator using the same, and computer-readable medium with a program therefor stored thereon
    Patent number: 5991522
    Abstract: Circuit data for a digital/analog hybrid circuit is classified as those for types of data such as a net, a circuit symbol, a symbol pin, and an outside terminal. A conversion rule for each type of classified circuit data is specified by a conversion rule collator. Classified circuit data is converted by a circuit model builder according to the specified conversion rule to convert the digital/analog hybrid circuit to a circuit suited for digital simulation.
    Type: Grant
    Filed: August 25, 1997
    Date of Patent: November 23, 1999
    Assignee: Fujitsu Limited
    Inventor: Akihisa Shoen