| 1949 | Jan. 1949 | Chiyoda Kogyo is established in Fujimi-cho, Chiyoda-ku, Tokyo | |
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| 1950- | Nov. 1951 | Operation starts as a dedicated manufacturer of tube benders | |
| Jan. 1954 | Osaka Plant is relocated to Tagawa 5-chome, Higashiyodogawa-ku, Osaka | ||
| May 1957 | Chiyoda tube benders are first exhibited in the Tokyo International Trade Fair | ||
| May 1958 | Production starts for Type 33 Tube Benders | ||
| 1960- | Jan. 1960 | Main Plant is relocated to 3-7 Tagawa, Higashiyodogawa-ku, Osaka | |
| Apr. 1960 | Tokyo Office opens in Kanda, Tokyo | ||
| Nov. 1964 | Nagoya Office opens in Nakagawa-ku, Nagoya | ||
| Oct. 1965 | Type 33 Tube Benders are expanded into a full lineup | ||
| Sep. 1969 | Chiyoda Kohan Co., Ltd. is established | ||
| 1970- | May 1970 | Japan's first NC tube bender is exhibited in the Osaka International Trade Fair | |
| Apr. 1971 | Simple NC Control PC Tube Bender is developed | ||
| May 1977 | EC Series Universal Type CNC Tube Bender is developed | ||
| 1980- | Jan. 1981 | TC Series CNC Tube Bender and Tube Measuring Machine are released | |
| Jun. 1982 | Automated System using tube loaders and robots is released | ||
| Jan. 1983 | ST Type 4-Axis CNC Control Tube Bender is developed and released | ||
| Oct. 1985 | Color CRT Controller is developed and released | ||
| Aug. 1987 | USA service base (Chiyoda U.S.A.) opens | ||
| 1990- | Jan. 1990 | Chiyoda tube benders are granted patent rights in Canada | |
| Mar. 1990 | Hamamatsu Plant opens | ||
| Mar. 1990 | South Korea service base (Chiyoda Korea) opens | ||
| Apr. 1991 | Chiyoda tube benders are granted patent rights in the USA | ||
| Jul. 1991 | Hamamatsu Plant No. 2 opens | ||
| Sep. 1992 | Patent is filed for HYP (Tight Bend Radius) Series | ||
| Nov. 1993 | Chiyoda tube benders are granted patent rights in South Korea | ||
| Feb. 1994 | Japan's first Super-U Bend Machine is developed | ||
| Mar. 1995 | High-Speed Spinning Machine is developed | ||
| Mar. 1996 | Main Plant is relocated to Hamamatsu-shi, Shizuoka | ||
| Jun. 1997 | CAM Bender Communication System is developed | ||
| Oct. 1998 | HYP Hyper Benders are expanded into a series | ||
| Jun. 1999 | Chiyoda Kogyo holds exhibition celebrating its 50th anniversary | ||
| 2000 | Jun. 2000 | Controller with built-in Windows software is developed | |
| 2002 | Apr. 2002 | Hamamatsu Plant is renovated and expanded |
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| 2003 | Oct. 2003 | USA service base is expanded (spare parts warehouse and permanent showroom are added) |
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| 2004 | Sep. 2004 | BECS MASTER brand is released | |
| 2005 | Feb. 2005 | Osaka Head Office is renovated and expanded (guest room, training room, and showroom are added) |
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| 2006 | Jul. 2006 | All-Electric CNC Tube Bender is released | |
| Oct. 2006 | Fukuoka Office opens | ||
| 2007 | Jun. 2007 | Tube Bending Simulation Software is developed | |
| 2008 | Aug. 2008 | Camera Type 3D Tube Measuring Machine is developed | |
| 2009 | Jan. 2009 | EX Series CNC Tube Bender is released | |