| Date | Description |
|---|
| 2024-04-09 |
delete president Taisuke Oka |
| 2024-04-09 |
insert president Takaaki Sakai |
| 2024-04-09 |
delete person Taisuke Oka |
| 2024-04-09 |
insert person Takaaki Sakai |
| 2019-07-20 |
delete president Hiroyuki Hayashi |
| 2019-07-20 |
insert president Taisuke Oka |
| 2019-07-20 |
delete person Hiroyuki Hayashi |
| 2019-07-20 |
insert person Taisuke Oka |
| 2015-07-28 |
delete president Tetsuhiko Yoshikawa |
| 2015-07-28 |
insert president Hiroyuki Hayashi |
| 2015-07-28 |
delete person Tetsuhiko Yoshikawa |
| 2015-07-28 |
insert person Hiroyuki Hayashi |