1927	Established as Seibu Electric and took over operations at the site of the Kyushu Factory of Toho Electric (Hakata-ku, Fukuoka city), which was an electric machinery factory of Toho Electric (currently Kyushu Electric Power Co., Inc.). Started Manufacture and repair of electrical machinery and devices (transformers, motors, generators) and electric meters.
1939	Reorganized as Seibu Electric MFG. Co., Ltd. (capital: ¥180,000).
1942	Moved electric equipment factory to Koga city in Fukuoka prefecture for increasing production of electric equipment for mining.
1945	Moved company headquarters and factory and all other facilities to Koga city in Fukuoka prefecture.
1953	Due to the downturn in the coal industry, focused efforts on developing new models to diversify out of electric equipment for mining. A light loader was developed.
1954	Started production of motor blocks and valve controllers.
1957	Completed valve controller mass-production factory.
1959	Started production of machine tools (lathes) by adopting modification unit manufacturing technology, which was originally used for improving the performance of machine tools in company equipment.
1962	Developed die sinking EDM and established large-scale machine tool factory.
1966	Developed automated warehousing system (monorail stacker crane).
1972	Developed the world’s first CNC wire cut EDM.
1973	Established Seiden Kosan Co., Ltd. for utilizing idle assets and operating and managing welfare facilities.
1976	Developed high-precision, compact NC lathe.
1982	Developed FMS Seibu DIO (Direct Input Output) System®.
1983	Developed NC EDM. Developed high-speed order picking system. Developed the world’s first NC lead lathe.
1986	Changed the corporate name to Seibu Electric & Machinery Co., Ltd. Listed on the Fukuoka Stock Exchange (capital: ¥1,033,000,000).
1987	Established new Tokyo Service Center in Ichikawa city, Chiba prefecture.

1990	Established office for design (with cafeteria).
1991	Listed on the Second Section of the Osaka Securities Exchange (capital: ¥2,658,400,000).
1995	Developed high-speed auto wire feeding device (AWF-3) for EDM. Established Seibu Techno Service Inc. (currently Seibu Hitec Co., Ltd.) to more effectively use our skills in parts machining for Seibu products.
2002	Developed high-speed sorting equipment, EE sorter and roll-in/roll-out case automated warehousing system (RIO-S).
2003	Developed pin-rack gate actuator (manual/automatic). Developed submerged type wire EDMs (M500S, M350S, M750S)
2004	Developed accumulation system by stack tray.
2005	Developed automated warehousing system for libraries. Developed Semflex® V series and Semflex® LP series.
2006	Developed high-precision free-form grinding machine (SFG-28). Established Seibu Paint Co., Ltd. for conducting the painting operations of Seibu products. Developed ultra-high-precision wire EDM (MP250S). Listed on the Second Section of the Tokyo Stock Exchange.
2007	Built new headquarters building and new factory.
2009	Developed assort boomerang system. Developed automated system for vault filled with urns. Developed large-size chain gate driver. Developed high-precision wire EDM (MM750S).
2010	Developed Semflex® A series. Developed ultra-high-precision wire EDM (SuperMM50A).
2012	Formed business/capital alliance with Toyota Industries Corporation for Distribution Equipment Business. Developed multi-sorting RIO system. Developed oil-type wire EDM (M25LP).
2013	Developed horizontal floodwall gate actuator (Suikouden® HPM series).
2014	Developed robot picking and sorting system. Developed ultra-high-precision wire EDM (UltraMM50B).
2015	Developed swing gate actuator (HGM series). Built new multi-purpose factory.
2016	Developed oil-type, ultra-high-precision wire EDM (MEX15).
2017	Developed electric valve control for escort vessels. MEX15 received the "Monozukuri Award from the Japan Society for Precision Engineering".
2018	Started valve control stock sales in Thailand. Started supplying cranes to Toyota Industries Corporation as an OEM supplier.

2019	Developed fine picker C and cart case loader.
2020	Acquired ISO 14001 certification for environmental management system. Developed high-precision, large wire EDM (SuperMM80B).