Prof. Koichiro Yamaguchi born in 1936 took office from the 1st January 2011 as President of the Japan Institute for Labour Policy and Training. His specialty is Labour Laws.　
  His academic career began from the nomination as an Associate Professor of Yokohama National University in 1963. Since then he had held prominent positions such as a Professor in the faculty of Law at Sophia University (1976-2002), a professor in the faculty of Liberal Arts at the Open University of Japan (2002-2005), a member of the Central Employment Security Council (1987-1995), Chairperson of the Central Labour Relations Commission (2000-2006).
  He has been a Professor Emeritus of Sophia University since 2002.

  Among his books, following ones are included:
  Koichiro Yamaguchi, "Labor Contract", JILPT, 2006 (In Japanese)
  Koichiro Yamaguchi, "Issues of Workers' Accident Compensation", Yuhikaku, 2002
  (In Japanese)
  Koichiro Yamaguchi, "Labor Union Act", Yuhikaku, 1996 (In Japanese)
  Koichiro Yamaguchi, Kazuo Sugeno and Akira Watanabe, "Changing Patterns of Working   Time", JIL, 1988 (In Japanese)