Patents by Inventor Seiji Yamasuga

Seiji Yamasuga 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).

  • Computer network having an asynchronous document data management system
    Patent number: 5640544
    Abstract: An object of the present invention is to provide a document data management system which can effect rapid screen display of document data. The document data management system comprises a communication processing apparatus for retrieving document data managed by another computer by way of a telecommunication line, a document data display apparatus for displaying on the screen document data requested by the user, a document data request processing apparatus for processing a document data retrieval request from the document data display apparatus, and a document data managing apparatus including document data writing controller which is utilized by the communication processing apparatus and document data reading controller which is utilized by the document data request processing apparatus.
    Type: Grant
    Filed: November 24, 1992
    Date of Patent: June 17, 1997
    Assignee: NEC Corporation
    Inventors: Takahiro Onodera, Seiji Yamasuga