Patents by Inventor Jun Shitahaku

Jun Shitahaku 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).

  • Portable data-processing terminal including a program competition manager
    Patent number: 7302688
    Abstract: A cellular phone has a competition manager for controlling a competition between an inquiry task which inquires whether or not the inquiry task is allowed to start and a competing task having a competition with the inquiry task because these two of the tasks use a common lower-level functional unit. The competition manager is implemented by a competition management program which is independent from other application programs.
    Type: Grant
    Filed: December 10, 2002
    Date of Patent: November 27, 2007
    Assignee: NEC Corporation
    Inventor: Jun Shitahaku
  • Portable telephone set and window switching control method
    Patent number: 7146193
    Abstract: A portable telephone set using a Window System for controlling the rendering timing of a display window of each function includes a history management section, priority management section, and operation control section. The history management section manages the history of the display window of each function. The priority management section manages the priority level of the display window of each function. The operation control section controls switching of the display window of each function on the basis of management contents of the history management section and priority management section.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: December 5, 2006
    Assignee: NEC Corporation
    Inventor: Jun Shitahaku
  • Portable data-processing terminal
    Publication number: 20030110202
    Abstract: A cellular phone has a competition manager for controlling a competition between an inquiry task which inquires whether or not the inquiry task is allowed to start and a competing task having a competition with the inquiry task because these two of the tasks use a common lower-level functional unit. The competition manager is implemented by a competition management program which is independent from other application programs.
    Type: Application
    Filed: December 10, 2002
    Publication date: June 12, 2003
    Applicant: NEC Corporation
    Inventor: Jun Shitahaku
  • Portable telephone set and window switching control method
    Publication number: 20020037753
    Abstract: A portable telephone set using a Window System for controlling the rendering timing of a display window of each function includes a history management section, priority management section, and operation control section. The history management section manages the history of the display window of each function. The priority management section manages the priority level of the display window of each function. The operation control section controls switching of the display window of each function on the basis of management contents of the history management section and priority management section.
    Type: Application
    Filed: September 24, 2001
    Publication date: March 28, 2002
    Applicant: NEC Corporation
    Inventor: Jun Shitahaku