ZERO START Co.,Ltd.
1995 - 2000 Worked as Network engineer for some ISPs. 2000 - 2001 General manager of iDC, Livedoor. 2001 - 2003 SVP of Network service, Livedoor. Mar 2004 Founder and CEO of RedSIP (VoIP startup at Bay Area). Feb 2006 CEO of Livedoor. Jul 2006 Founder and CEO of ZEROSTART (to present)