| 1883 |
SAITO Hajime, the first president, founded Saito Manufacturing in Fukuoka City. |
| 1895 |
Invented steam sterilizer for well water. Acquired patent for the product. |
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| 1908 |
Started manufacture of cast iron radiators. |
| 1910 |
Manufactured and delivered the radiator exclusively used on the train of the Meiji Emperor. |
| 1915 |
Cooperated in the manufacture of the Arrow, the first compact car made in Japan. |
| 1923 |
Exhibited a radiator at the 3rd Invention Exposition held in Ueno,Tokyo,winning first prize. |
| 1933 |
Restructured the organization to a limited liability company. |
| 1934 |
Changed the corporate name to Showa Manufacturing Co.,Ltd. |
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| 1967 |
Cooperated in research and development of the MS casting method with Mitsubishi Heavy Industries,Ltd. |
| 1973 |
Adopted new casting method "V-process". |
| 1984 |
Introduced Toyota production method to improve corporate management. |
| 1990 |
Listed on the Fukuoka Stock Exchange. |
| 1997 |
Urbanex Type FT functional guard fence won the gold prize of Good Design Award. |
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| 2000 |
Moved Thermodevices Division from Umi Plant to Hisayama Plant. |
| 2001 |
Cooperated in development of girder connecting device. |
| 2002 |
Developed food waste processor and started manufacture. |
| 2003 |
Thermodevices Division obtained ISO9001 certification. |
| 2004 |
Thermodevice Division's new plant was completed. |
| 2005 |
Invested in Korea Pionics Co., Ltd. |
| 2007 |
Started manufacture of natural refrigerant water heater "ECO CUTE". |
