Patents by Inventor Tshiaki Tarui

Tshiaki Tarui 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).

  • Parallel processor system including a cache memory subsystem that has independently addressable local and remote data areas
    Patent number: 6295579
    Abstract: A parallel processor system controls access to a distributed shared memory and to plural cache memories to prevent frequently-used local data from being flushed out of a cache memory. The parallel processor system includes a plurality of nodes each including a processor and a shared memory in a distributed shared memory arrangement, and a local-remote divided cache memory system, wherein local data and remote data are controlled separately. Each local-remote divided cache memory system includes a local data area, a remote data area, and a cache memory controller by which either the local data area or the remote data area is accessed according to the contents of an access request.
    Type: Grant
    Filed: May 1, 1998
    Date of Patent: September 25, 2001
    Assignee: Hitachi, Ltd.
    Inventors: Naonobu Sukegawa, Tshiaki Tarui, Hiroaki Fujii, Hideya Akashi
  • Parallel processor system including a cache memory subsystem that has independently addressable local and remote data areas
    Patent number: 5778429
    Abstract: A parallel processor system controls access to a distributed shared memory and to plural cache memories to prevent frequently-used local data from being flushed out of a cache memory. The parallel processor system includes a plurality of nodes each including a processor and a shared memory in a distributed shared memory arrangement, and a local-remote divided cache memory system, wherein local data and remote data are controlled separately. Each local-remote divided cache memory system includes a local data area, a remote data area, and a cache memory controller by which either the local data area or the remote data area is accessed according to the contents of an access request.
    Type: Grant
    Filed: July 3, 1995
    Date of Patent: July 7, 1998
    Assignee: Hitachi, Ltd.
    Inventors: Naonobu Sukegawa, Tshiaki Tarui, Hiroaki Fujii, Hideya Akashi