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1918 | Founded at Takanawa-Kitamachi ,Shinagawa-ku Started the production and sales of "MITSUME-mark boiler compound"(patented), chemicals, medicine, etc |
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1936 | Moved head office to the current address Minami-oi |
1941 | Started the production and sales of Analyzer for boiler water (MITSUME-marked). |
1951 | Opened the Osaka sales branch (Osaka office at present) |
1952 | Started the production and sales of Corrosion inhibitor |
1958 | Opened the Sapporo sales branch |
1962 | Started the production and sales of Industrial water treatment plant (Demineralizer, Softener, Continuous blow-down controller, Chemical feeder). |
1963 | Opened the Sendai sales branch |
1967 | Opened the Fukuoka sales branch (Merged with Wakamatsu operation office in the second year) |
1969 | Opened the Nagoya sales branch Started the production and sales of “SABINON Siliphos” (Corrosion inhibitor for Drinking water or Hot Water) , “RCC” (Corrosion inhibitor for cooling water and Chilled/heated water ) |
1972 | Started the production and sales of waste water treatment equipment |
1982 | Opened the Wakamatsu operation office Started the production and sales of the ultra-pure demineralized water treatment equipment and Shohchu treatment equipment |
1985 | Started the production and sales of the high concentration nitrate waste treatment plant(patented). Started the production and sales of the chromate waste treatment plant (patented) |
1993 | Moved producing department to Nagaoka(Opened the Nagaoka plant) Precise condensate filter which awarded "an excellent energy conservation equipment prize". |
2001 | Licensed ISO9001 |
2002 | Opened the Obihiro sales sub-branch (Obihiro sales branch at present) |
2006 | Opened the Nagaoka sales branch |
2010 | Opened the Minami-Kyushu sales branch |
2012 | Licensed ISO 14001 in Nagaoka plant |
2014 | Increased the capital to 20 million |