TOKYO, Japan (AFP) — Sony chief executive Kazuo Hirai, who led a major and successful overhaul at the Japanese electronics giant, will step down at the end of March, the firm said Friday. Hirai will become Sony chairman, filling a post that has been empty since June 2012, and will be replaced by the company’s current chief financial officer Kenichiro Yoshida on April 1. “As the company approaches a crucial juncture, when we will embark […]