| 1945年 |
1945 • Established as Teijin Seiki.(currently Nabtesco Corporation) |
| 1959年 |
1959 • Designed and manufactured automobile production machinery for Mazda. Entered machine tool business. |
| 1969年 |
1969 • Developed constant velocity joint processing machine for automobiles. |
| 1970年 |
1970 • Commenced technical agreement with Finzer(Germany) for the ZUB-200 Forming machine. |
| 1990年 |
1990 • Terminated technical agreement with Finzer. Renamed the ZUB to PROFORMA. |
| 1991年 |
1991 • Developed the PROFORMA RF series. |
| 1995年 |
1995 • Established as Teijin Seiki Precision by Teijin Seiki. |
| 1998年 |
1998 • Developed Inner Race Groove Grinding Machine. |
| 2002年 |
2002 • Developed Tripod OD Grinding Machine. |
| 2003年 |
2003 • Renamed as TS Precision. Developed NC Forming Machine. |
| 2006年 |
2006 • Merged Marifu Engineering Co.,Ltd. Developed Cage window hard Milling Machine. Developed Special Forming Machine Series. |
| 2007年 |
2007 • Developed Outer Race Groove & ID Grinding Machine. Developed Outer - Inner Groove & ID hard Milling Machine. |
| 2009年 |
2009 • Developed Forming Machine IF series. |
| 2010年 |
2010 • Developed Honing Machine & Vertical Machine. |
| 2011年 |
2011 • Acquired Aishinkikou CO., LTD. |
| 2013年 |
2013 • Developed the PROFORMA SF-150. |
| 2014年 |
2014 • Absorption-type merger with Aishinkikou co.,LTD. |
| 2015年 |
2015 • Developed the PROFORMA SF-250. |
| 2023年03月 |
2023 • Maruka Corporation acquired 100% of our stock and became a group company of the company. |
| 2026年 |
2026 • Maruka Co., Ltd. changes its name to Unisol Co., Ltd. |
