History
- June, 1925
- Establish Yamamoto MFG
- March, 1960
- Start manufacturing of stamping die
- January, 1999
- Establish VUTEQ Engineering corporation in Kentucky US as a joint venture
- May, 2004
- Establish VUTEQ Mongolia in Ulan Bator, Mongolia as a joint venture
- March, 2008
- The grand prize of IT management in small and medium enterprises awarded Authorized as IT management practice authorization company(Ministry of Economy, Trade and Industry)
- March, 2008
- Local industrial technical contribution award
- June, 2008
- Authorized "High spirited manufacturing into 300 small and medium enterprises
- March, 2012
- Establish New born Yamasei corporation
- September, 2017
- Converted factory and office lighting equipment to LED
- September, 2021
- Registered as an Ehime Prefecture SDGs Promotion Company
- April, 2024
- Increased capital to 88 million yen




