Sony's Xperia mobile phones are displayed at Tokyo Game Show 2016 in Chiba, east of Tokyo, Japan. REUTERS/Kim Kyung-Hoon

Sega logos are pictured at Tokyo Game Show 2016 in Chiba, east of Tokyo, Japan. REUTERS/Kim Kyung-Hoon

Promotional staff wearing the costumes of game publisher 6waves' game characters pose on a stage at Tokyo Game Show 2016 in Makuhari, east of Tokyo, Japan. REUTERS/Kim Kyung-Hoon

Promotional staff wearing the costumes of game publisher 6waves' game characters pose on a stage at Tokyo Game Show 2016 in Makuhari, east of Tokyo, Japan. REUTERS/Kim Kyung-Hoon

A view of the Morgan Stanley London headquarters at Canary Wharf financial centre in London, Britain June 24, 2016. REUTERS/Russell Boyce/File Photo

A view of the Morgan Stanley London headquarters at Canary Wharf financial centre in London, Britain June 24, 2016. REUTERS/Russell Boyce/File Photo

Former Beatles Ringo Starr (L) and Paul McCartney attend the world premiere of 'The Beatles: Eight Days a Week - The Touring Years' in London, Britain September 15, 2016. REUTERS/Neil Hall

A man looks at an electronic board showing the Japanese yen's exchange rate against Euro outside a brokerage in Tokyo, Japan, July 6, 2016. REUTERS/Issei Kato