Patents by Inventor Ikuyoshi Hiroshima

Ikuyoshi Hiroshima 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).

  • Task tracing apparatus in a multitask operating system
    Patent number: 5379427
    Abstract: A task tracing apparatus stores causes and addresses of interruptions, and system call numbers and addresses of system calls issued by an ongoing task. This makes it possible to obtain not only the basic information about switches from one task to another, but also the other related and detailed information as needed. Thus the development of software systems is made easier and more efficient.
    Type: Grant
    Filed: March 9, 1990
    Date of Patent: January 3, 1995
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventor: Ikuyoshi Hiroshima