History of IBIDEN

YearChronology
1906

FebEighteen leaders in Ogaki-cho (now Ogaki City), Gifu Prefecture, plan to establish Ibigawa Electric Power Co., Ltd. with capital of ¥1 million.

Inaugural meeting

Inaugural meeting

1912

NovIbigawa Electric Power Co., Ltd. is established with an inaugural meeting held in Ogaki-cho, (head office in Akasaka-ku, Tokyo); Yujiro Tachikawa is appointed president.

The Company's first president, Yujiro Tachikawa

The Company's first president, Yujiro Tachikawa

1916

MayThe Nishi-Yokoyama Power Plant begins operation (permitted power output: 3,000 kW).

1917

FebManufacture and sale of carbide begin (discontinued in 1991).

The electric furnace business during the Taisho Period (1912-1926)

The electric furnace business during the Taisho Period (1912-1926)

1918

AprThe Company begins to manufacture and sell ferrosilicon (discontinued in 1985).

DecThe Company is merged with Ibigawa Denka Kogyo Co., Ltd., Tokai Denka Kogyo Co., Ltd., and Nihon Denki Steel. Co., Ltd. and the new firm is named Ibigawa Electrochemical Co., Ltd.

1919

JunManufacture and sale of carbon products begin.

1921

FebThe Company's name is changed to Ibigawa Electricity Co., Ltd.

Jun The Higashi-Yokoyama Power Plant begins operation (permitted power. output: 6,400 kW).

The Higashi-Yokoyama Power Plant of the day under construction

The Higashi-Yokoyama Power Plant of the day under construction

1922

AugManufacture of carbon for the Sperry type searchlight begins.

A manufacturing scene at the Ogaki Plant during the early Showa Period (1926-1989)

A manufacturing scene at the Ogaki Plant during the early Showa Period (1926-1989)

1925

MayThe Hirose Power Plant begins operation (permitted power output: 5,200 kW).

DecPresident Tachikawa passes away; Yukio Sakurauchi is appointed president.

1926

NovPresident Sakurauchi and Tokujiro Tanaka are appointed chairman and president, respectively, and the Company is placed under the umbrella of Toho Electric Power Co., Ltd.

1928

MayPresident Tanaka resigns; Masaji Kurushima is appointed president.

1935

MarManufacture of nitrolime begins (discontinued in 1981).

DecThe Kawakami Power Plant begins operation (permitted power output: 2,950 kW).

1940

JanThe Company's name is changed to Ibigawa Electric Industry Co., Ltd.

MarThe Nishidaira Power Plant is completed (permitted power output: 11,200 kW).

1942

AprThe Nishidaira Power Plant and its transmission facilities are contributed to Nippon Hassoden K.K. under the Order for Enforcement of Power Management Act; the Nishi-Yokoyama Power Plant, Ogaki/Godo/Gifu substations, and distribution and transmission facilities are contributed to Chubu Haiden Co., Ltd. under the Power Distribution Control Act.
Meanwhile, the power supply business is abolished so that the Company can focus its business on electrochemical engineering using privately generated electricity.

JunPresident Kurushima retires; Hisao Miyadera and Gengo Kodera are appointed president and chairman, respectively, and the Company is placed under the umbrella of Dainippon Spinners Co., Ltd.

The Nishi-Yokoyama Power Plant is contributed.

The Nishi-Yokoyama Power Plant is contributed.

The plant (now the Aoyanagi Plant) is contributed by Dainippon Spinners Co., Ltd.

The plant (now the Aoyanagi Plant) is contributed by Dainippon Spinners Co., Ltd.