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100
th Anniversary Website
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Main Page
01
Introduction
A Piece of Insulator Brought Over from the United States
02
NGK Group Philosophy
Our Mission Our Values
03
History
History of Diversification and Globalization
04
NGK Stories
Nine Stories We Have to Tell
05
Special Movies
NGK INSULATORS Seen Through Movies
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03
History
Summary Timeline of Our Company
The 100-Year History of NGK INSULATORS
1919-1958
1919
NGK INSULATORS, LTD. is established as a spin-off from Nippon Toki's Insulator Division.
Kazuchika Okura is appointed as president (the company’s first).
1936
NGK Spark Plug Co., Ltd. is established as a spin-off from NGK's Spark Plug Division.
1939
Magoemon Ezoe is appointed as president (the company’s second).
1942
Construction of Chita Plant, located in Handa, Aichi, is completed.
1944
Yoshiyuki Morimura is appointed as president (the company’s third).
1946
The NGK Workers’ Union is started.
1948
Kumao Yoshimoto is appointed as president (the company’s fourth).
1950
Capital participation in Asahi Malleable Iron Co., Ltd.
1951
The inaugural issue of Mizuho, the company newsletter, is published.
1956
Capital participation in Fuji Yogyo.
The Indian liaison office is established (in Mumbai).
1957
Atsuta Plant is completed.
Insulator plant in Mysore, India is completed with technical cooperation from NGK.
Main plant at the time of the company’s founding (1919)
Directors at the time of founding (Center: President Okura) (1919)
Chita Plant (1942)
The inaugural issue of Mizuho (1951)
Atsuta Plant (1957)
Insulator plant in India (1957)
1919-1958
1959-1993
1994‐2019
Historical Timeline of Our Products