Abstract: A casing includes a first casing and a second casing that sandwich an elastic member, wherein the first casing includes a pressed portion that is pressed by the elastic member, and an engaging portion adjacent to the pressed portion that has a flange protruding toward the pressed portion that engages with the second casing, and the pressed portion is flat in a region corresponding to at least the engaging portion.

Abstract: A casing includes a first casing and a second casing that sandwich an elastic member, wherein the first casing includes a pressed portion that is pressed by the elastic member, and an engaging portion adjacent to the pressed portion that has a flange protruding toward the pressed portion that engages with the second casing, and the pressed portion is flat in a region corresponding to at least the engaging portion.

Abstract: A casing includes a first casing and a second casing that sandwich an elastic member, wherein the first casing includes a pressed portion that is pressed by the elastic member, and an engaging portion adjacent to the pressed portion that has a flange protruding toward the pressed portion that engages with the second casing, and the pressed portion is flat in a region corresponding to at least the engaging portion.

Abstract: A folding electronic device includes a fixed casing, a movable casing, and a hinge device connecting the fixed casing and the movable casing to allow rotational movement of the movable casing. The movable casing is openable with respect to the fixed casing. The hinge device has an axis extending over a land portion of the fixed casing and a land portion of the movable casing. A projection is provided in any of the following: at least one of end faces of the land portion of the fixed casing and an end face, opposed to one of the end faces, of the land portion of the movable casing. As the movable casing changes from a closed state to an open state, a gap between the projection and an end face opposed to the projection is increased.

Abstract: A portable terminal device which having a lower part; an upper part openable and closable in relation to the lower part; a magnet and a magnetic sensor attached to the lower part; and a magnetic plate which is attached to the upper part and leads the magnetic force of the magnet to the magnetic sensor, when the upper part is closed over the lower part.

Abstract: In response to key operation, a portable terminal lights up an LCD unit, and also lights up keys only when it is dark around the portable phone by measuring external brightness.

Abstract: To provide a portable terminal device which has an openable and closable part and an open/close detector which detects opening and closing of the part, where the portable terminal device has a reduced thickness when closed and allows easy position adjustment during assembly. A cell phone equipped with a lower part and an upper part openable and closable in relation to the lower part has a magnet and a magnetic sensor attached to the lower part; and a magnetic plate which is attached to the upper part and leads the magnetic force of the magnet attached to the lower part to the magnetic sensor attached to the lower part when the upper part is closed over the lower part.

Abstract: In response to key operation, a portable terminal lights up an LCD unit, and also lights up keys only when it is dark around the portable phone by measuring external brightness.