Corporate History

Domestic Business

09/1960	Established Okada Rock Drill, Co. in Higashi-ku, Osaka and began sales, repair and assembly of pneumatic breakers and other construction machines.
04/1962	Opened the Ogaki branch in Ogaki city, Gifu prefecture.
07/1968	Opened the Tokyo branch in Kita ward, Tokyo.
03/1969	Established the Shigino plant in Joto ward, Osaka city.
02/1972	Opened the Sendai branch in Sendai City, Miyagi prefecture.
02/1973	Established the Higashi Osaka plant in Osaka ward, Osaka prefecture and relocated the Shigino plant.
04/1977	Launched hydraulic breakers on the market.
03/1978	Opened the Nagoya branch in Nishi ward, Nagoya city.
05/1980	Relocated the Tokyo branch (currently Tokyo headquarters) to Itabashi ward, Tokyo.
09/1980	Opened the Morioka branch in Morioka city, Iwate prefecture.
03/1983	Opened the Kanazawa branch in Kanazawa City, Ishikawa prefecture.
09/1983	Changed the company name to OKADA AIYON CORPORATION.
03/1986	Opened the Kyushu branch in Hakata ward, Fukuoka City.
09/1986	Relocated the Morioka branch to Tonan village, Tsukuba district, Iwate prefecture.
11/1986	Opened the Chubu branch in Ogaki City, Gifu prefecture and integrated the Ogaki branch and Nagoya branch.
02/1987	Integrated the head office and Higashi Osaka plant and relocated the head office to Minato ward, Osaka City.
10/1987	Started manufacturing and launched sales of Kowarikun, which is a new line of hydraulic breakers.
04/1988	Relocated the Kyushu branch to Onojo City, Fukuoka prefecture.
04/1989	Opened the Sapporo office in Nishi ward, Sapporo City.
04/1990	Changed the name of Kanazawa branch to Hokuriku branch.
07/1990	Opened the Hiroshima office in Asaminami ward, Hiroshima City.
04/1992	Promoted the Sapporo office to a branch.
08/1992	Listed on the Second Section of the Osaka Securities Exchange.
04/1993	Promoted the Hiroshima office to a branch.
04/1996	Opened the Yokohama branch in Tsuzuki ward, Yokohama City.
04/1997	Opened the Shikoku branch in Matsuyama City, Ehime prefecture.
05/1999	Established AMC Co., Ltd. (affiliated company).
04/2001	Integrated the Kansai branch into the Osaka head office.
02/2002	Established AIYON TECH. CO., LTD. and started manufacturing the TS-W series.
07/2003	Acquired additional stock of AMC Co., Ltd. (affiliated company) to make it a subsidiary. Integrated the Hiroshima branch into the Kansai branch.
10/2003	Merged with AMC Co., Ltd. (subsidiary).
10/2005	Relocated and newly established AIYON TECH. CO., LTD. (subsidiary) to Asaka City, Saitama prefecture.
04/2007	Opened an office in Hiroshima City, Hiroshima prefecture.
10/2007	Relocated and newly established the Kyushu branch in Onojo City, Fukuoka prefecture.
01/2008	Relocated and newly established the Morioka branch in Yahabacho, Shiwa district, Iwate prefecture.
01/2011	Officially registered the TOP New S series in NETIS of the Ministry of Land, Infrastructure and Transport.
04/2011	Integrated the Yokohama branch in Tsuzuki ward, Yokohama City into the Tokyo head office.
05/2012	Relocated and newly established the Hiroshima branch in Hatsukaichi City, Hiroshima prefecture.
07/2013	Listed on the Second Section of Tokyo Stock Exchange.
11/2013	Newly reconstruction of Parts Center and Kansai branch.
04/2015	Opened the Yokohama branch in Tsuzuki ward, Yokohama City.
08/2015	Opened the Tokyo office in Kasumigaseki, Chiyoda ward.
02/2016	Newly reconstruction of Aiyon Tech. Co., Ltd. Building.
03/2016	Moved to the First Section of the Tokyo Stock Exchange.
10/2016	Relocated and newly established the Hokuriku branch in Senkoujimachi, Kanazawa City.
10/2017	The Nansei Machine Co.,Ltd., Nansei Wintech Co.,Ltd., and Akatsuki Kikou Co., Ltd. became group companies.
04/2019	The three companies, The Nansei Machine Co.,Ltd., Nansei Wintech Co.,Ltd., and Akatsuki Kikou Co., Ltd. were integrated.
11/2019	Relocated and newly established the Shikoku branch in Iyogun, Ehime prefecture.
10/2020	Relocated and renamed as Shonan branch in Hiratsuka City, Kanagawa prefecture.
10/2021	Relocated and newly established the Hiroshima branch in Hiroshima City, Hiroshima prefecture.
01/2022	Newly reconstruction of Chubu branch.
04/2022	Transitioned from the First Section of the Tokyo Stock Exchange to the Prime Market due to a review of the market classification of the Tokyo Stock Exchange.
04/2022	Relocated and newly established the Sendai branch in Miyagino-ku, Sendai City.
06/2023	Relocated and newly established the Sapporo branch in Shiroishi-ku, Sapporo City.

Overseas Business

04/1993	Separated the Osaka head office overseas business section to establish an overseas office.
09/1996	Established BOA, INC. as an affiliate.
12/2002	Additionally acquired stock of the affiliated company BOA, INC. to make it a subsidiary (currently OKADA America, Inc.).
01/2016	Opened the OKADA America, Inc. Texas branch.
08/2017	Established a European office in Rotterdam, the Netherlands.
06/2019	Established a Thailand representative office in Ayutthaya Province, Thailand.
01/2020	Local subsidiary established in Rotterdam, the Netherlands.( Okada Europe B.V.)
06/2021	Okada Aiyon(Thailand)Co., Ltd. established as a joint venture with Yontrakan Machinery Co., Ltd. in Ayutthaya Province, Thailand.
12/2022	Established Okada Midwest, Inc. and acquired business from Thoesen Tractor&Equipment Co., Inc., Chicago Machinery Co. and Thoesen Tractor of Indiana, Inc.