Patents by Inventor Tetsuya Suehisa

Tetsuya Suehisa 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).

  • On-line forum-type electronic conference system maintaining consistency of messages
    Patent number: 6154764
    Abstract: An electronic conference system in which a plurality of users post and read messages includes a message-deletion unit for deleting posted messages so that no access can be made to deleted messages. The electronic conference system further includes a deleted-message-information-management unit for storing identification information of the deleted messages.
    Type: Grant
    Filed: July 9, 1997
    Date of Patent: November 28, 2000
    Assignee: Fujitsu Limited
    Inventors: Minoru Nitta, Tetsuya Suehisa, Naoki Ishibashi, Katsuhiko Tomita