INS Labor Union was founded in 1956 at Institute for Nuclear Study, University of Tokyo. We had 40th anniversary party in Jun. 1996 at INS to celebrate history of activity of labor union. In that time, old friends and younger friends get together at the same place to enjoy the ceremony programs. The INS face the turning point which mean the movement from Tanashi to Tsukuba campus. This home page is intended to summarize not only the our activity for past 40 years but activity to be attack for future problems. The INS Labor Union attack to improve the life and peace not only the own but world.