Successive Directors
Inauguration Day President Vice President Chairman of the Board Representative Director Director December 10, 1958 Shinji Yoshino Saburou Kojima Hamao Umezawa Masao Shimizu Hamao Umezawa March 27, 1962 Shinji Yoshino Aaburou Kojima Hamao Umezawa Masao Shimizu Hamao Umezawa December 14, 1964 Shinji Yoshino Tokuji Ichikawa Hamao Umezawa Tomio Takeuchi Hamao Umezawa June 7, 1971 Tokuji Ichikawa Sumio Umezawa Hamao Umezawa Tomio Takeuchi Hamao Umezawa February 3, 1987 Tokuji Ichikawa Sumio Umezawa Tomio Takeuchi Kenji Maeda Tomio Takeuchi January 17, 1994 Sumio Umezawa Den-ichi Mizuno Tomio Takeuchi Kenji Maeda Tomio Takeuchi July 5, 2000 Shigeo Morioka Den-ichi Mizuno Tomio Takeuchi Kenji Maeda Tomio Takeuchi July 8, 2000 Tamio Yamakawa Teruhiko Beppu Yoshiaki Nonomura Yuzuru Akamatsu Yuzuru Akamatsu April 1, 2010 Tamio Yamakawa Teruhiko Beppu Akio Nomoto Masakatsu Shibasaki Akio Nomoto, Masakatsu Shibasaki
After reincorporation as a public-interest foundation
| Inauguration Day | Chairman of the Board | Representative Director | Director |
|---|---|---|---|
| April 1, 2011 | Akio Nomoto | Masakatsu Shibasaki | Akio Nomoto, Masakatsu Shibasaki |
| November 7, 2014 | Masakatsu Shibasaki | Yoji Umezawa | Masakatsu Shibasaki |
| April 1, 2017 | Masakatsu Shibasaki | Takao Shimizu | Takao Shimizu |