March 1964Opens interior and exterior painting business in Minamioizumi, Nerima. Sells paint products in addition to providing painting services.
1968Develops first patented product, BEROTTO. Sold through Balance Shokai.
1969Develops and sells plastic spatulas.
1971Relocates to Nobitome, Niiza.
February 1981Incorporates as Inoue Shokai Limited. Takeshi Inoue is appointed President. Capitalized at 1 million yen.
February 1988Relocates to new company building in Honda, Niiza. July 1991 Increases capital to 5 million yen.
July 1991Increases capital to 5 million yen.
February 1996Relocates to new company building in Nobitome, Niiza.
March 2007Changes name to Inouekougu Co., Ltd. Michiko Inoue is appointed President.
May 2007Increases capital to 10 million yen.
April 2015Opens Tokyo Office.
September 2016Relocates to new company building in Tokorozawa. With relocation, merges Tokyo Office into Head Office.
February 2026Kouichi Inoue is appointed President.
