June 9, 1960, Tokyo
1987 Tohoku University, School of Medicine
1979 joined the Japanese Communist Party (JCP)
1984 Chairman, All-Japan Federation of Medical Students'
1985 Vice-Chairman, All-Japan Federation of Students'
1987 started practice as a Medical Doctor
1998 Director, Japan Federation of Democratic Medical
1998 elected to the House of Councillors (2 terms)
2013 reelected to the House of Councillors
(Major posts in a political party)
2013 Vice-Chairperson of the Executive Committee, JCP
2016 Head of the Secretariat, JCP
(as of January 16,2017)