History of IBIDEN

Started production of lime nitrogen (calcium cyanamide. until 1981)
Started power transmission from Kawakami Power Station, permitted output 2,950kW

Announced the inauguration on June 29, Executive Managing Director Masaharu Kurushima to President

Aquired Denki Kogyo-sho and took over its Ogaki Plant(later Gama Plant)

Corporate name changed to IBIGAWA ELECTRIC INDUSTRY CO., LTD.
Started transmission from Nishi-Daira Power Station, permitted output: 11,200kW

Shifted to the management of electrochemical business by private power generation
Announced the resignation and inauguration on June 27, Toshio Miyadera assumed the presidency. Gengo Kodera assumed the office as Chairman. (Put under the capital of Dainippon Spinners Co., Ltd. (textile company))

Began the manufacture of search light carbon (until 1945) at Aoyanagi Plnt (partly invested by Dainippon Spinners)

Headquarters relocated to Ogaki City, Closed Ogaki Branch
Discontinued production of carbon products for search lighting system, then initiated production of carbon products for filming and medical applications

Organized Ibiden Labor Union
Unaffiliated with Dainippon Spinners and shifted to self-independent corporation

Integrated Nishi Ogaki Plant and Kido Plant into one Ogaki Plant

Installed the first-in-Japan electric tunnel furance exclusive for carbon sintering

Started production of fused phosphate fertilizer (until 1990)

New head office building completed in Kanda-cho of Ogaki City (used until 2005)
Established Ibiden health Insurance Association