Patents by Inventor Hirpyuki Sakoda

Hirpyuki Sakoda 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).

  • Multiprocessor bridge having storage for spanning tree operation mode information indicating whether each port of the bridge is operable under spanning tree protocol
    Patent number: 5761435
    Abstract: A multiprocessor bridge construction allows ports that are operable under a spanning tree protocol to coexist with ports that are inoperable under the spanning tree protocol, thus making it possible to improve the frame-repeating capability of the bridge, to equip the bridge with a large number of ports, and to divide the spanning tree topology into a plurality of portions to be managed.
    Type: Grant
    Filed: March 10, 1995
    Date of Patent: June 2, 1998
    Assignees: Hitachi, Ltd., Hitachi Computer Engineering Co., Ltd.
    Inventors: Masashi Fukuda, Shigeki Morimoto, Toshihiko Murakami, Takunori Yoneno, Hideyuki Matsuo, Hirpyuki Sakoda