| Date | Description |
|---|---|
| 2021-06-13 | update person_description Nahoko Honjo => Nahoko Honjo |
| 2021-01-24 | delete president Kazuhiko Hirao |
| 2021-01-24 | insert chairman Nahoko Honjo |
| 2021-01-24 | delete person Kazuhiko Hirao |
| 2021-01-24 | insert person Nahoko Honjo |
| 2016-09-14 | insert president Kazuhiko Hirao |
| 2016-09-14 | insert person Kazuhiko Hirao |