The deal marks a significant push by SoftBank founder Masayoshi Son into robotics, as he expands investment after a period of retrenchment.

SoftBank's acquisition of ABB's robotics unit reflects billionaire Masayoshi Son's renewed interest in robots. The company was behind the development of humanoid, Pepper, which…

The deal marks a significant push by SoftBank founder Masayoshi Son into robotics, as he expands investment after a period of retrenchment.