Patents by Inventor Makoto Kotera

Makoto Kotera 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).

  • Device for controlling multiple transactions contending concurrently for the same resource in a distributed database system
    Patent number: 5377351
    Abstract: A database processor in a distributed database system has a decision making section for use in detecting whether a distributed deadlock has occurred if a contention is detected by a contention detector. If a distributed deadlock occurs, the decision making section posts or provides a concurrency controller with information regarding the detection of the distributed deadlock, whose occurrence has been detected by a global deadlock detector on a network to which the database processor is connected. The concurrency controller instructs a transaction controller to cancel the queuing of the transaction forming the distributed deadlock. The transaction controller can then take prescribed controlling actions to swiftly resolve the distributed deadlock.
    Type: Grant
    Filed: June 7, 1991
    Date of Patent: December 27, 1994
    Assignee: Oki Electric Industry Co., Ltd.
    Inventors: Makoto Kotera, Sadayuki Hikita