Patents by Inventor Akihito Shinozaki

Akihito Shinozaki 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).

  • Plural-routes search method and network system using the same
    Patent number: 7219159
    Abstract: A searching method of a plurality of routes includes the steps of defining, as an X direction, one direction of a bidirectional transmission line connected to each of the plurality of nodes, and another direction as a Y direction; respecifying an initial node and a terminal node; searching a first shortest route extending from the specified initial node to the specified terminal node; searching a second shortest route for nodes connected to another transmission line in the X direction; searching a third shortest route extending from the specified initial node to the specified terminal node; searching a fourth shortest route for nodes connected to another transmission line in the Y direction; comparing the sum of the X group first route and second route with the sum of the Y group first route and second route; and determining the group having a smaller sum as an optimal route in the comparison.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: May 15, 2007
    Assignees: Fujitsu Limited, NTT Communications Corporation
    Inventors: Tsunehito Mouri, Osamu Nakazawa, Hiroyuki Saito, Akihito Shinozaki, Sadayo Hirata, Hirotoshi Yamada
  • Plural-routes search method and network system using the same
    Publication number: 20030023751
    Abstract: A searching method of a plurality of routes includes the steps of defining, as an X direction, one direction of a bidirectional transmission line connected to each of the plurality of nodes, and another direction as a Y direction; respecifying an initial node and a terminal node; searching a first shortest route extending from the specified initial node to the specified terminal node; searching a second shortest route for nodes connected to another transmission line in the X direction; searching a third shortest route extending from the specified initial node to the specified terminal node; searching a fourth shortest route for nodes connected to another transmission line in the Y direction; comparing the sum of the X group first route and second route with the sum of the Y group first route and second route; and determining the group having a smaller sum as an optimal route in the comparison.
    Type: Application
    Filed: May 13, 2002
    Publication date: January 30, 2003
    Inventors: Tsunehito Mouri, Osamu Nakazawa, Hiroyuki Saito, Akihito Shinozaki, Sadayo Hirata, Hirotoshi Yamada
  • Recessed lighting fixture
    Patent number: D665117
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: August 7, 2012
    Assignee: Toshiba Lighting & Technology Corporation
    Inventors: Kazufumi Yoshida, Toshifumi Masuda, Yaeko Sugiyama, Akihito Shinozaki