Patents by Inventor Fumito Sato

Fumito Sato 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 for providing network service in a communication system
    Patent number: 5157390
    Abstract: When one module provides service while using a service providing function of other module, the service requesting module sends out a service request to other modules in a broadcast fashion. Each module receives and detects the service request, and when there is a corresponding service providing function in its own module, it sends a response back to the requesting module. Among a plurality of nodes, a selection function module which stores service providing function arrangement information of other nodes and determines a node which has the function for the corresponding service request is provided. The selection function module sends back a response to the service request.
    Type: Grant
    Filed: April 6, 1990
    Date of Patent: October 20, 1992
    Assignees: Hitachi, Ltd., Nippon Telegraph and Telephone Corporation
    Inventors: Tatsuo Yoshie, Tetsuo Takemura, Yutaka Fukushima, Fumito Sato