| 1998 | Establish Taisho Co.,Ltd. at Amata City | 
| 2003 | Received ISO 9001 Certified | 
| 2006 | Received ISO 9001: 2000 Certified | 
| 2011 | Received ISO 9001: 2008 Certified Received ISO/TS 16949 : 2009 Certified | 
| 2012 | Renewal of injection Machine and Implement Full Automation | 
| 2014 | Renew injection Machine 2 set Renew Annealing Machine Renew Microscope | 
| 2015 | Expand Warehouse | 
| 2016 | Estabilishment of New Assembly Factory | 
| 2017 | Implement Camera for Inspection |