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CEO Secrets: Hitachi boss Hiroaki Nakanishi

22 September 2015 Last updated at 00:05 BST

The boss of Hitachi, Hiroaki Nakanishi, offers the business advice he wishes he'd had when he started out, as part of the BBC News series, CEO Secrets.

You can read more about the #CEOSecrets series here.

Video journalist: Dougal Shaw