| Date | Description |
|---|---|
| 2022-02-10 | delete president Yasushi Kobayashi |
| 2022-02-10 | delete person Yasushi Kobayashi |
| 2021-02-07 | delete president Shinichi Koda |
| 2021-02-07 | insert president Yasushi Kobayashi |
| 2021-02-07 | delete person Shinichi Koda |
| 2021-02-07 | insert person Yasushi Kobayashi |