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