| Aug, 1975 | DAIKEN CO., LTD. was established with ¥5,000,000 in capital |
|---|---|
| Aug, 1983 | Capital increased to ¥84,500,000 |
| Aug, 1996 | Commission manufacturing started in Shenzhen along with establishment of Hong Kong branch. |
| Jan, 2002 | Overseas affiliated company was established in Hong Kong. Production facility began operations at Dong Guan |
| Oct, 2003 | Dong Guan factory obtained ISO9001 |
| Jun, 2004 | Dong Guan factory obtained ISO14001 |
| Mar, 2010 | SINFONIA TECHNOLOGY CO., LTD. to acquire DAIKEN CO., LTD. |
| Jan, 2013 | Established a local subsidiary in China |
| Mar, 2013 | Company name has changed from DAIKEN CO., LTD. to SINFONIA MICROTEC CO., LTD. Company name has changed from DAIKEN (HONG KONG) CO., LTD. to SINFONIA MICROTEC (HONG KONG) CO., LTD. |
| Jan, 2014 | Company name has changed from DAIKEN (DONG GUAN) CO., LTD to SINFONIA MICROTEC (DONGGUAN) CO., LTD. |
| Jun, 2015 | SINFONIA MICROTEC (VIETNAM) CO., LTD. is established in Ha Nam Province where a neighboring city of Hanoi, Vietnam. |
| Apr, 2016 | Production started in Vietnam factory |
| Nov, 2016 | Vietnam factory abtained ISO9001 and ISO14001 |
