Nobuyuki Akimoto has stepped backed from leading Japan-based phone operator NTT Docomo’s American corporate venturing unit to return home to make strategic investments.

Last month, NTT Docomo formed a $125m incubator and corporate venturing fund for smartphone and tablet-related start-ups in Japan to complement its $100m fund in the US.

The launch of the Y10bn ($125m) Docomo Innovation Fund and Docomo Innovation Village incubation programme is expected by March 31.

Akimoto said by email: “I have been back to Docomo…