Seiji Tanaka 1968.3 : Electronics Engineering,M.En.Kumamoto Univ.
1968.4 : Joined Ministry of Post & Telecommunications
1990.7 : Director, Frequency Planning Division, Radio Department, Telecommunications Bureau, MPT
1995.6 : Director General, Kantou Telecommunications Administration Bureau
1997.7 : Director General, Radio Department,Telecommunications Bureau, MPT
1999.7 : Deputy Vice-Minister for Technology Policy Coordination, MPT
2001.1 : Director-General for Technology Policy Coordination, MPHPT.