| Business career | ||
|---|---|---|
| 1. |
1997/04/01
~ 2001/03/31 |
|
| 2. |
2001/04/01
~ 2007/03/31 |
|
| 3. |
2007/04/01
~ 2014/03/31 |
|
| 4. |
2014/04/01
~ |
|