Patents Assigned to Nihon Advanced Products Kabushiki Kaisha
  • Patent number: 4177458
    Abstract: A display panel which is provided with a display surface structure having a large number of display elements rotatably arranged in a vertical plane. The display elements are each formed with a plate-like (or four-cornered) block member having two (or four) display surfaces of different colors and one (or three) magnetic pieces. A selected one or ones of the display elements are rotated by the movement of a display control head or heads and by temporary energization of one (or three) magnets of each head to make a selected one of the two (or four) display surfaces of the selected display elements face forwardly, providing a display of a character, graph, pattern or the like on the display surface structure.
    Type: Grant
    Filed: January 23, 1978
    Date of Patent: December 4, 1979
    Assignee: Nihon Advanced Products Kabushiki Kaisha
    Inventor: Yoshimasa Wakatake