1994

Joined East Japan Railway Co. Engaged in the launch of the "Eki-net" business in the Business Creation Division.

2001

Joined Asahi Arthur Andersen Ltd. (currently PricewaterhouseCoopers Co., Ltd.)

2001

Joined Nihon Telecom Inc. (currently SOFTBANK Telecom Corp.)

2004

Seconded to SOFTBANK BB Corp.

2005

CEO, SOFTBANK Players Group (to present)
CEO, Odds Park Corp. (to present)

2009

Chairman,Odds Park Banei Management Corp.

2010

CEO, DreamNetMarketing Corp. (to present)
CEO, EDUAS Corp. (to present)

2011

COO,SB Energy Corp. (to present)