After facing bankruptcy less than five years ago, Sanmi Corp. has fought back to become the nation's leading producer of oil purifiers for power plants and home appliance companies, according to its president, Hisayoshi Tamaru.
Sanmi's oil purifiers are used to remove gases and moisture from oil used for transformers at power companies. The firm, based in Ota Ward, Tokyo, was established in 1950 by Tamaru's father.
Sanmi supplies more than 60 percent of the nation's oil purifier market. It sells its products to all the nation's major electric power companies, including Chubu Electric Power Co., Kansai Electric Power Co. and Tokyo Electric Power Co.