According to one embodiment, a method is disclosed for manufacturing a semiconductor light emitting element. The rubber layer is expanded when the tire is in a vulcanized state. For a given distance between the objects, the phase offset vs. The controller can also use the measurements to warn of unwanted accelerations or to predict the failure of associated or nearby equipment so that maintenance can be scheduled and to detect imminent failures and shut down the process. The data processor includes: a receiving section, which receives an instruction on a partial deletion range including the beginning of the file; and a media control section for deleting data, the size of which is an integral number of times as large as the least common multiple of the cluster size and the packet size, from the beginning of the file within the partial deletion range.