Patents by Inventor Masako Kamegi

Masako Kamegi 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).

  • Programs maintenance procedures in parallel processing system
    Patent number: 6671872
    Abstract: A parallel processing system has a plurality of subsystems connected to each other to operate as a single system. The subsystems each include a variety of procedures that are selectively created, used, updated and deleted by a program in execution. A procedure management unit is capable of controlling state attributes of the procedures. In particular, the procedure management unit has a procedure-being-used table for cataloging the names of procedures currently being used by programs in execution and a procedure-being-updated table for cataloging the names of procedures currently being created or updated by programs in execution. Whether or not the name of a procedure is cataloged in the procedure being used table, a request to use the procedure is granted if the procedure name is not cataloged in the procedure being updated table.
    Type: Grant
    Filed: December 10, 1999
    Date of Patent: December 30, 2003
    Assignee: Hitachi, Ltd.
    Inventors: Yasuhito Yamane, Katsuhide Takagi, Masako Kamegi
  • Programs maintenance procedures in parallel processing system
    Patent number: 6075930
    Abstract: A parallel processing system has a plurality of subsystems connected to each other to operate as a single system. The subsystems each include a variety of procedures that are selectively created, used, updated and deleted by a program in execution. A procedure management unit is capable of controlling state attributes of the procedures. In particular, the procedure management unit has a procedure-being-used table for cataloging the names of procedures currently being used by programs in execution and a procedure-being-updated table for cataloging the names of procedures currently being created or updated by programs in execution. Whether or not the name of a procedure is cataloged in the procedure being used table, a request to use the procedure is granted if the procedure name is not cataloged in the procedure being updated table.
    Type: Grant
    Filed: June 23, 1997
    Date of Patent: June 13, 2000
    Assignee: Hitachi, Ltd.
    Inventors: Yasuhito Yamane, Katsuhide Takagi, Masako Kamegi