Patents by Inventor Yoshiaki Sunaga

Yoshiaki Sunaga 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).

  • Electronic discussion system for exchanging information among users creating opinion indexes in accordance with content of each options
    Patent number: 6594652
    Abstract: An electronic discussion system including discussion terminals for writing and managing opinion information and clients for accessing the discussion terminals through a network.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: July 15, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiaki Sunaga, Atsushi Komatsuzawa, Tetsuji Ohno, Noriyuki Takahashi
  • Electronic discussion system for exchanging information among users
    Patent number: 6094675
    Abstract: An electronic discussion system of the client/server structure for an electronic exchange of messages which are presented by a plurality of users and shown on a display of a client computer, wherein the servers comprise at least one storage server for holding detailed contents of respective pieces of opinion information, and at least one discussion server for holding opinion indexes showing the storage locations of opinion contents of respective pieces of opinion information, wherein the clients comprise an opinion writing client for transferring and writing the opinion index created from a newly presented piece of opinion information and the opinion content into the discussion server and the storage server, and a reading client for referring to opinion indexes and opinion contents recorded and managed in the discussion server and the storage server.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: July 25, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Yoshiaki Sunaga, Atsushi Komatsuzawa, Tetsuji Ohno, Noriyuki Takahashi