History of IBIDEN


Inaugural Meeting was held in Ogaki Town for the foundation of Ibigawa Electric Power Co., LTD.
Yujiro Tachikawa was appointed as the first president.


Started electric power transmission from Nishi-Yokoyama Power Station (permitted power output: 3,000 kW).


Established Ogaki Electrification Plant(known later as Nishi-Ogaki Plant)
Started manufacturing and sales of carbide products (until 1991).


Started production of Ferrosilicon (silicon iron) in Ogaki Electrification Plant (later transferred business to Gama Plant, until 1984)
Incorporated Ibigawa Denka Kogyo, Tokai Denka Kogyo, and Nihon Denki Seitetsusho into Ibigawa Denka Co., Ltd.


Merged Nihon Denki Kokuen into Ibigawa Denka Co., Ltd.,Started production and sales of carbide products


Changed the corporate name to Ibigawa Denki Co., Ltd.
Started power transmission from Higashi-Yokoyama Power Station: permitted output: 6,400kW


Merged Yoro Railway into Ise Electric Railway, then transferred the business to Yoro Electric Railway in 1927
Established Ogaki Carbon Plant (later Kido Plant) for production of carbon products for Sperry type search lighting system


Started power transmission from Hirose Power Station, permitted power output: 5,200kW
Announced the inauguration, Yukio Sakurauchi assumed the presidency upon the death of the first president.


Announced the inauguration on November 5, Sakurauchi to Chairman of the board, Tokujiro Tanaka to President Ibigawa Denki Co., Ltd. was put under the capital of Toho Electric Power Co., Ltd.


Designated by Navy as the main plant of carbon products for Sperry type lighting system


Provided the Nippon Synthetic Chemical Industry with electric power and carbide
Announced the resignation and inauguration on June 30, President Tanaka resigned Executive managing Director, Masaharu Kurushima took over the position of representative director

Inaugural meeting

Higashi-Yokoyama Power Plant Station(under construction)

View of electric furnace
(5 years after foundation)

Site views in Ogaki Plant (in 1922)