A motor may include a stator formed with a rotor arrangement hole, a rotor disposed in the rotor arrangement hole, and a plate-like member disposed on at least one end side in an axial direction of the stator. The plate-like member is joined with an end face of the stator structured such that a peripheral edge part of the plate-like member is melted. In this case, it is preferable that the peripheral edge part of the plate-like member is joined with the end face of the stator structured such that an edge part on an opposite side to a face contacting with the end face of the stator is melted by irradiation of a laser beam.