|1914||Founded "Tsukishima Denki Works" (former name of "Tetsudo Kiki Co., Ltd.") in Tsukishima, Tokyo.
Designed by Ministry of Railway as a manufacturer of turnout, mechanical signal equipment and tablet block signal.
|1943||Merged with "Turnout Division of Sunamachi Factory of Yokoyama Kogyo K.K." and changed the company's name to "Tetsudo Kiki Co., Ltd.".|
|1945||Moved "Sunamachi Factory" to Toyama Prefecture and built "Toyama Factory". By increasing capital repeatedly, expanded and modernized facilities of the factory.|
|1966||Built Machine Shop (present No.1 Machine Shop).|
|1969||Built Assembling Shop (present No.2 Machine Shop) and rebuilt Forging Shop.|
|1977||Performed a test laying of a Movable set-off Mechanism at Kurikara Station on the Hokuriku Main Line.|
|1980||Built new Assembling Shop.|
|1991||Acquired about 6,000 m2 adjoining land for the purpose of expansion of factory.|
|1993||Celebrated the 50th anniversary of the establishment of the company.
Built Heat Treatment Shop.
Built Ware House for Rails and new glued Insulated Joint Shop.
|1995||Received a letter of appreciation from West Japan Railway Company for "support and cooperation for restoration work after the Great Hanshin-Awaji Earthquake".|
|1999|| Awarded ISO 9001 certification for our quality control management system.
Started Providing Advanced Welded Crossing
|2000||Started operation of 13m Processing Machine|
|2005||Received a letter of appreciation from East Japan Railway Company for "contribution to restoration work after the Chuetsu earthquake disaster".|
|2010||Awarded Eco-Action 21 (2008) certification for an environmental management system.|
|2011||Exhibited at the 2nd Railway Technology Exhibition (First Exhibit)
Received an award from the Chief of the Nihonbashi Tax Office as an "excellent tax return corporation".
Received a letter of appreciation from East Japan Railway Company for "support and cooperation for restoration work after the Great East Japan Earthquake".
|2012||Started operation of 19m Processing Machine .|
|2013||Exhibited at the 3rd Railway Technology Exhibition.|
|2014||Celebrated the 100th anniversary of the company's founding.
Built new office building in Toyama Factory
Received an award of "Tokaido Shinkansen 50th Anniversary" from Central Japan Railway Company
|2015||Exhibited at the 4th Railway Technology Exhibition.|
|2017||Exhibited at the 5th Railway Technology Exhibition.
Received the Excellence Award of "Tokyo Metropolitan SME Skills Human Resource Development Award" from the Governor of Tokyo Metropolitan Government
|2018||Received a letter of appreciation from Nankai Electric Railway for "cooperation for restoration of the Koya line"|
|2019||Shipped first turnout to Myanma Railways.
Exhibited at the 6th Railway Technology Exhibition.
|2021||Move to new office （Nihonbashi Hongoku-cho)
Exhibited "7th mass-trans Innovation Japan 2021"
Founder, Yozo Yoshida
At Adachi Factory, in June 1943
Started operation of Machining Center
Built office building in Toyama Factory