History

1918 Founded at Takanawa-Kitamachi ,Shinagawa-ku
Started the production and sales of "MITSUME-mark boiler compound"(patented), chemicals, medicine, etc
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