| May 1952 | Masumi Hoshino, founded Asahi Steel Works. | July 1961 | Started designing, manufacturing and constructing sluice gates. |
|---|---|
| November 1964 | Started manufacturing and selling heating equipment for central heating. | November 1970 | Started designing, manufacturing and constructing water pipe bridge. |
| April 1974 | Started processing and assembling steel frames. |
| May 1975 | Started designing, manufacturing and constructing bridges. |
| July 1979 | Started designing, manufacturing and constructing the dust remover. |
| April 1984 | Kyosuke Hoshino, assumed the position of Representative Director. |
| June 1998 | Asahi Steel Works acquired the certification of ISO9001. |
| February 2001 | Four group companies acquired the certification of ISO14001 and OHSAS18001 simultaneously. |
| May 2002 | Asahi Steel Works, 50th anniversary of foundation. |
| July 2004 | AUTO GATE, the product for flood prevention was awarded "The Encouragement Award for Disaster prevention and environmental technology research group". |
| September 2006 | AUTO GATE was awarded "the Encouragement Prize of Invention by the Minister of Education, Culture, Sports, Science and Technology. |
| April 2007 | Asahi Steel Works, Asahi Manufacturing and Asahi Inovex merged to newly form ASAHI INOVEX Corp. |
| May 2012 | ASAHI INOVEX, 60th anniversary of foundation. |
| September 2013 | AUTO GATE, the product for flood prevention was awarded "The Prime Minister’s Prize for the fifth Monodzukuri Nippon Grand Award". |
| May 2016 | ASAHI INOVEX, 65th anniversary of foundation. |
| April 2018 | Mikihiro Hoshino, assumed the position of Representative Director. |
| February 2020 | Asahi Management Co., Ltd. Established |
| March 2022 | Reduced capital to 100 million yen |