Business career
1. 2014/10 ~ 2015/03  
2. 2012/04 ~ 2015/03  
3. 2011/04 ~ 2014/04  
4. 2008/04 ~ 2012/03  
5. 2006/09 ~ 2008/03  
Present specialized field
Papers
1. 2021  
2. 2020  
3. 2019  
4. 2019  
5. 2018