Patents by Inventor Yasushi Soejima

Yasushi Soejima 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).

  • Recovery system for system coupling apparatuses, and recording medium recording recovery program
    Patent number: 6199105
    Abstract: Each of a plurality of hosts requests one of system coupling apparatuses to lock one of an inter-host shared resources, and stores lock information notified by the system coupling apparatus; each of the plurality of system coupling apparatuses locks an inter-host shared resource whose locking has been requested by one of the hosts, holds lock information indicating the locking, and notifies the requesting host of the lock information; one of the plurality of hosts, when one of the plurality of system coupling apparatuses fails, causes lock information held by other normal system coupling apparatuses to be deleted; and one of the other normal system coupling apparatuses is requested to lock said inter-host shared resource on the basis of lock information stored in the requesting host.
    Type: Grant
    Filed: December 9, 1998
    Date of Patent: March 6, 2001
    Assignee: NEC Corporation
    Inventors: Yasushi Soejima, Takashi Fuju