Patents by Inventor Kikuko Morishima

Kikuko Morishima 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).

  • Patent number: 5978839
    Abstract: Processor apparatuses share data, used in common for a plurality of systems, in a global memory in a share system. The global memory is divided into constant units and the individual division units are managed by using identifiers which are definitely determined as viewed from the processor apparatuses and the share system. When an inter-system exclusive state conditioning unit of a processor apparatus designates a desired area on an address space in the processor apparatus by using an identifier to obtain a locked resource, an update state confirming unit checks whether data in a corresponding unit in the share system is updated, and when the data is updated, a data transferring unit transfers the data in the corresponding unit in the share system to the address space. Accordingly, a program operating on each computer system can easily access the data shared by the systems without being aware of the presence of the share system.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: November 2, 1999
    Assignee: Hitachi, ltd.
    Inventors: Susumu Okuhara, Hiroshi Morishima, Shingo Maeda, Kikuko Morishima
  • Patent number: 5974565
    Abstract: A composite computer system which includes a plurality of processors connected to each other by a communication apparatus, an operation supervisory unit for recording operating conditions of the processors when the processors are activated or deactivated, an operation supervisory network for connecting the processors and the operation supervisory unit and a program condition management apparatus for recording operating conditions of programs when the programs of the processors are activated or deactivated. The operation supervisory unit obtains, for fault location purposes, the operating conditions of the processors recorded in the operation supervisory unit via the operation supervisory network and the operating conditions of the programs recorded in the program condition management apparatus.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: October 26, 1999
    Assignee: Hitachi, Ltd.
    Inventors: Susumu Okuhara, Hiroshi Morishima, Shingo Maeda, Kikuko Morishima