Patent 7446976 was granted and assigned to Hitachi Maxell on November, 2008 by the United States Patent and Trademark Office.
A tape cartridge includes a case, a magnetic tape stored in the case, a movable member slidably or movably mounted on the case and having a display portion visible from an outside of the case, a plurality of management information sets about the tape cartridge are displayed on the display portion, and a plurality of the information sets include one or more information sets different from each other.