|April 1950||Business commences at Kataoka-cho, Kusatsu-city (Shiga) as an individual enterprise.|
|June 1959||The head office and plant move to Nomura-cho, Kusatsu-city (Shiga). Business is reorganized as Tokiwa Industries Co., Ltd. with the capital of 1,000,000 yen.|
|September 1965||Production and sales of general industrial machineries is launched, based on the processing technology of precision parts for measuring instruments.|
|June 1969||Capital increases to 3,550,000 yen.|
|July 1970||Capital increases to 4,000,000 yen.|
|June 1974||Tokiwa Engineering Co., Ltd. is established with the capital of 2,000,000 yen to develop and design machineries and equipments.|
|October 1983||Capital of Tokiwa Engineering increases to 15,000,000 yen.|
|May 1984||The head office and plant move to Yasu-city, Shiga prefecture.|
|April 1986||The first machining center is introduced.|
|May 1995||Capital increases to 10,000,000 yen.|
|September 1995||A new plant is built in an adjacent area to respond to the increased demand.|
|August 2007||Capital increases to 30,000,000 yen.|
|February 2009||A new machining center is introduced and stars operation.
（Mazak VERTICAL CENTER NEXUS 510C-Ⅱ）
|A large 5-face machining center starts operation.
（Mitsubishi MVR35 W2.5m × L5.0m × H1.6m）
|January 2010||LCD module manufacturing / repair machinery operation is launched.|
|Module manufacturing is launched.|
|November 2012||A new machining center is introduced and starts operation.||November 2013||A new digital micro scope is introduced and starts operation.
|January 2014||Manual-Floating Type Coordinate Measuring Machines is introduced and starts operation.
（Mitsutoyo Crysta-Plus M7106）
|April 2014||Capital increases to 60,000,000 yen.|
|February 2018||Suzukuni & Tokiwa Industries Co., Ltd. (Suzukuni group) succeeds the station due to absorption type division of Tokiwa Industries Co., Ltd.|