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1973.01 | Kumamoto Hassho Electronic, the predecessor of Ookuma Electronic Co., Ltd., was launched | |||
| 1975.04 | Mr. Hideyoshi Ookuma, the current Chairman of the Board, founded Ookuma Electronic Co., Ltd. | ||||
| 1975.06 | OOKUMA ELECTRONIC established corporate offices in Hotakubo-Honmachi in the city of Kumamoto | ||||
| 1976.04 | Completed Factory 1 at the current company location and relocated offices there | ||||
| 1977.04 | Completed Factory 2 at the current company location | ||||
| 1979.09 | Completed head office building | ||||
| 1979.10 | Capital increased to 12 million yen | ||||
| 1982.09 | Established Fukuoka office(Closing now) | ||||
| 1983.10 | Completed expansion of head office building | ||||
| 1983.12 | Capital increased to 24 million yen | ||||
| 1984.12 | Capital increased to 38 million yen | ||||
| 1985.03 | Capital increased to 50 million yen | ||||
| 1997.08 | Fukuoka office separated into the group business Ootech Co., Ltd. | ||||
| 2002.06 | Received certification based on the provisions of the Law on Supporting Business Innovation of Small and Medium Enterprises | ||||
| 2002.09 | Launched our New Ventures Planning Office | ||||
| 2006.09 | Established Tokyo office in Takatsu-ku in the city of Kawasaki, Kanagawa Prefecture | ||||
| 2007.04 | Adopted SMT lines in Production Office | ||||
| 2007.06 | Received Eco-Action 21 Certification | ||||
| 2008.02 | Established Kansai Branch in Ogaya, in the city of Otsu, Shiga Prefecture | ||||
| 2009.02 | Launched Medical Systems Department | ||||
| 2011.09 | Mr. Keiji Okuma was inaugurated as managing director | ||||
| 2012.07 | Established Kitakyushu Development Annex in Kokuraminami-ku, in the city of Kitakyushu (at Kitakyushu National College of Technology) | ||||
| 2012.09 | Established System Lab in Mashikimachi, Kamimashiki-gun, Kumamoto Prefecture (in Kumamoto Techno Research Park) | ||||
| 2015.10 | Closed Kansai Branch | ||||
| 2015.11 | Established OKUMA SOLUTION KANSAI Inc in Kyoto | ||||
| 2015.11 | Tokyo Branch moved (Shinagawa Tokyo)2019.12 Closed | ||||
| 2017.10 | Building a new head office | ||||
| 2017.12 | METI award | ||||
| 2018.03 | METI award | ||||
| 2018.10 | TAKUTO System(Cooperating company now) | ||||
| 2019.10 | MFC(Spun off subsidiary) | ||||
| 2021.9 | Harness business launched |













