Patents by Inventor Atsuyoshi Kawaura

Atsuyoshi Kawaura 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).

  • IC card and management method of nonvolatile memory in IC card
    Patent number: 6886069
    Abstract: An IC card having nonvolatile and volatile memory is disclosed. An IC card generates a volatile object, and accesses the volatile object using a reference address on a nonvolatile memory. These volatile objects are dynamically generated. The objects are allocated addresses in order from volatile objects with shorter terms to volatile objects with longer terms, so as to allow garbage collection and reuse of a volatile memory.
    Type: Grant
    Filed: May 30, 2002
    Date of Patent: April 26, 2005
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Atsuyoshi Kawaura
  • IC card and management method of nonvolatile memory in IC card
    Publication number: 20020184434
    Abstract: This invention has as its object to allow an IC card to generate a volatile object, and to access the volatile object using a reference address on a nonvolatile memory. These volatile objects are dynamically generated, and real objects are allocated in the order from volatile objects with shorter terms, so as to allow garbage collection and reuse of a volatile memory, the term of which has expired.
    Type: Application
    Filed: May 30, 2002
    Publication date: December 5, 2002
    Inventor: Atsuyoshi Kawaura