| Date | Description |
|---|---|
| 2018-04-10 | delete coo Minoru Hasegawa |
| 2018-04-10 | insert coo Taishi Watabe |
| 2018-04-10 | delete person Minoru Hasegawa |
| 2018-04-10 | insert person Taishi Watabe |
| 2015-04-26 | delete ceo Ken Shigematsu |
| 2015-04-26 | insert ceo Minoru Hasegawa |
| 2015-04-26 | delete person Ken Shigematsu |
| 2015-04-26 | insert person Minoru Hasegawa |