The investigation concluded that workers were not sufficiently familiar with the machines and the machines were not sufficiently regulated. The robot that killed Urada was removed from the Akashi plant, and man-high fences were erected around the other two robots in the plant in the wake of the accident.
The investigation determined that employees lacked sufficient expertise with the equipment and insufficient control procedures were implemented. Consequently, the robot accountable for Urada's death was decommissioned at the Akashi facility, and substantial obstacles were constructed around the remaining robots to prevent similar incidents.