Abstract: An information processing device including a plurality of rectangular-shaped casings each including a first principal surface, and a second principal surface opposing the first principal surface and including a display panel having a predetermined aspect ratio. The information processing device including a connecting portion connecting each of the plurality of rectangular-shaped casings in a closed state in which each of the plurality of rectangular-shaped casings are mutually overlaid and a display panel of at least one of the plurality of rectangular-shaped casings is externally exposed, and in an open state in which wall portions of mutually adjacent rectangular-shaped casings abut and the display panels of each of the plurality of rectangular-shaped casings face a similar direction. The information processing device further includes a terminal state detecting unit that detects the closed state and the opened state, and a display control unit that controls display of each of the display panels.

Abstract: A terminal apparatus that includes a first housing, a second housing, and a hinge mechanism that slidably couples the first housing to the second housing in each of an open state and a closed state with respect to the second housing. The hinge mechanism includes a base portion and a movable portion, the movable portion being slidable with respect to the base portion in a direction which the first housing moves away from the second housing when the first housing transitions from the closed state to the open state with respect to the second housing.

Abstract: An information processing device including a plurality of rectangular-shaped casings each including a first principal surface, and a second principal surface opposing the first principal surface and including a display panel having a predetermined aspect ratio. The information processing device including a connecting portion connecting each of the plurality of rectangular-shaped casings in a closed state in which each of the plurality of rectangular-shaped casings are mutually overlaid and a display panel of at least one of the plurality of rectangular-shaped casings is externally exposed, and in an open state in which wall portions of mutually adjacent rectangular-shaped casings abut and the display panels of each of the plurality of rectangular-shaped casings face a similar direction. The information processing device further includes a terminal state detecting unit that detects the closed state and the opened state, and a display control unit that controls display of each of the display panels.

Abstract: An electronic apparatus including: a first case; a second case having an inclined arm fitting part; a hinge enabling the first and second cases to rotate around a first rotational axis; a secured piece secured to the hinge and the second case, the secured piece having an inclined arm part that fits into the inclined arm fitting part; and an inclined arm securing member configured to secure the inclined arm part fit to the inclined arm fitting part by insertion into a pair of gaps provided between the inclined arm fitting part and the inclined arm part.

Abstract: Disclosed is a mobile terminal including a ring section having a plurality of operation devices provided on a substantially circular enclosure, a terminal body section having at least a display device,a pair of hinge sections which have a rotation axis substantially parallel to a tangent line of a ring circumference direction of the ring section and rotatably journal the terminal body section at a rotation angle of at least 90 degrees with respect to the ring section, and a body-ring interface section which performs at least signal transmission between the ring section and the terminal body section.