TOKYO, JAPAN - FEBRUARY 03: SoftBank Group CEO Masayoshi Son delivers a speech during an event titled "Transforming Business through AI" in Tokyo, Japan, on February 03, 2025. SoftBank and OpenAI announced that they have agreed a partnership to set up a joint venture for artificial intelligence services in Japan.Japanese tech stocks took a tumble on Thursday as AI infrastructure spending worries on Wall Street crossed the ocean into the Asian markets, with AI-related stocks declining.Softbank Group Corp was ...