| 2015/10 | 2017/10 | 2019/04 | 2021/04 | 2021/10 | 2022/10 | 2023/04 | 2024/01 | ||
|---|---|---|---|---|---|---|---|---|---|
| President | Kubokawa A | Ohara M | Ohara M | Ohara M | Tanimoto Y | Tanimoto Y | Tanimoto Y | Tanimoto Y | |
| Vice-president | Ohara M Tsuchiya S Sasaki T | Matsuda F Tsuchiya S Sasaki T | Konishi K Tanaka S Namikawa K | Konishi K Tanaka S Namikawa K | Konishi K Tanaka S Namikawa K | Konishi K Tanaka S Namikawa K | Konishi K Tanaka S Namikawa K | Konishi K Tanaka S Namikawa K | |
| Executive (* head) | Tsuyuzaki S* Sakairi N Fujii T Kurasaki M Shimamura M Okada N | Tsuyuzaki S* Sakairi N Fujii T Kurasaki M Okada N Kameyama S Koshikawa S | Tsuyuzaki S* Nakata K Fujii T Kurasaki M Okada N Kameyama S Koshikawa S | Tsuyuzaki S* Nakata K Fujii T Okada N Kameyama S Koshikawa S Senzaki M | Tsuyuzaki S* Nakata K Fujii T Okada N Kameyama S Koshikawa S Senzaki M | Koshikawa S* Nakata K Fujii T Okada N Kameyama S Senzaki M Tsuyuzaki S | Koshikawa S* Nakata K Ono K Okada N Kameyama S Senzaki M Tsuyuzaki S | Koshikawa S* Nakata K Ono K Okada N Kameyama S Senzaki M Tsuyuzaki S | |
| Councilor | Mori N Nishimura N Miyaji A Narita K Miyake S Furukawa J Kuramoto T Tahara S | Mori N Nishimura N Miyaji A Narita K Miyake S Furukawa J Kuramoto T Tahara S | Mori N Nishimura N Miyaji A Narita K Miyake S Furukawa J Kuramoto T Tahara S | Mori N Nishimura N Miyaji A Narita K Miyake S Sakairi N Kuramoto T Tahara S | Mori N Nishimura N Miyaji A Narita K Miyake S Sakairi N Kuramoto T Tahara S | Mori N Nishimura N Miyaji A Narita K Miyake S Sakairi N Kuramoto T Tahara S | Mori N Nishimura N Miyaji A Narita K Miyake S Sakairi N Kuramoto T Tahara S | Mori N Ando T Miyaji A Narita K Miyake S Sakairi N Kuramoto T Tahara S | |
| Auditor-secretary | Nishikawa Y Hosokawa T | Nishikawa Y Hosokawa T | Nishikawa Y Hosokawa T | Nishikawa Y Hosokawa T | Nishikawa Y Hosokawa T | Nishikawa Y Hosokawa T | Nishikawa Y Hosokawa T | Nishikawa Y Hosokawa T | |
| Advisor | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M Shimazu K | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M Shimazu K Kubokawa A | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M Shimazu K Kubokawa A | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M Shimazu K Kubokawa A | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M Shimazu K Kubokawa A Ohara M | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M Shimazu K Kubokawa A Ohara M | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M Shimazu K Kubokawa A Ohara M | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M Shimazu K Kubokawa A Ohara M | |
| 2012/05 | 2013/10 | ||||||||
| President | Shimazu K | Kubokawa A | |||||||
| Vice-president | Kubokawa A Tsuchiya S Sasaki T | Tsuchiya S Sasaki T Tanaka S | |||||||
| Executive (* head) | Ohara M* Sakairi N Tsuyuzaki S Kurasaki M Shimamura M Okada N | Ohara M* Sakairi N Tsuyuzaki S Fujii T Kurasaki M Shimamura M Okada N | |||||||
| Councilor | Mori N Nishimura N Miyaji A Narita K Miyake S Furukawa J Kuramoto T Tahara S | Mori N Nishimura N Miyaji A Narita K Miyake S Furukawa J Kuramoto T Tahara S | |||||||
| Auditor-secretary | Nishikawa Y Hosokawa T | Nishikawa Y Hosokawa T | |||||||
| Advisor | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minamigawa M | Hori H Tokura S Nishi N Ikeda M Iwakuma T Minagawa M | 
Personal information operation management: Secretary-general