Kazuo Hirai, the electronics giant's second-in-command, who also currently serves as the president and group CEO of Sony Computer Entertainment Inc (SCEI), will become chairman of the unit.
Welsh-born Sony veteran Andrew House will take over as the unit's new president and group CEO from September 1, the company said in a statement.
Current SCEI Chairman Akira Sato will retire on August 31, the company said.