Abstract: A heat conduction member includes a housing including a space therein, a wick structure located in the space, and a working fluid enclosed in the space. The housing includes one or more metal plates and a joint structure that connects the one or more metal plates. The joint structure includes two stacked metal plate layers and a boundary portion between the two metal plate layers. The boundary portion includes a first region including crystal grains straddling the two metal plate layers.

Abstract: In an aerodynamic bearing, an outer peripheral surface of a shaft and an inner peripheral surface of a sleeve face each other in a radial direction. The sleeve includes a through hole penetrating the sleeve in the radial direction. A space on a radially inner side of the sleeve communicates with an external space of a motor through the through hole. A stationary portion includes a wall portion radially overlapping the through hole with a gap interposed therebetween on a radially outer side of the through hole.

Abstract: In an aerodynamic bearing, an outer peripheral surface of a shaft and an inner peripheral surface of a sleeve face each other in a radial direction. The sleeve includes a through hole penetrating the sleeve in the radial direction. A space on a radially inner side of the sleeve communicates with an external space of a motor through the through hole. A stationary portion includes a wall portion radially overlapping the through hole with a gap interposed therebetween on a radially outer side of the through hole.

Abstract: A vibration motor includes a stationary portion including a casing and a coil; a vibrator including a magnet, and supported to be capable of vibrating in a first direction with respect to the stationary portion; and an elastic member arranged between the stationary portion and the vibrator. The elastic member includes an increased thickness portion including a fixed surface fixed to one of the vibrator and the stationary portion; a decreased thickness portion having a thickness smaller than that of the increased thickness portion as measured in the first direction; and a connection portion arranged between the increased thickness portion and the decreased thickness portion in a second direction perpendicular to the first direction. The connection portion is arranged to have a thickness smaller than that of the increased thickness portion and greater than that of the decreased thickness portion.