| year | event | notes |
| 2000 | short stay in Stockholm | July to August |
| 2001 | doctor of science | March |
| 2001 | visiting University of Stirling | September- |
| 2002 | backto Kyushu university | You found hidden letters! |
| 2004 | Leaving the university to CRM at AIST | Spring |
| now.. | making my home page | You found hidden letters! |