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１９２０：
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Toyoji Kato, former President established "Kato Graphite Manganese Refining Company"
at Shibuya, Tokyo, and supplied the battery makers with
Manganese Dioxide and Graphite Powder .
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１９３９：
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In response to the Battery Makers' request, Toyoji Kato founded "Daiichi Carbon Company",
specializing Battery Carbon Rods manufacturing,
at Ikebe-cho, Tsuzuki-ku, Yokohama.
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１９４５：
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Kato Graphite Manganese Refining Company was burnt down by war bombing,
and was merged to Daiichi Carbon Company.
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１９５５：
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Cinema Carbon business started.
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１９５７：
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Steel Forging business started.
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１９６８：
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By American ESB Corporation's strong demand, a full Daiichi-system
Battery Carbon Manufacturing Plant was constructed in Mexico City.
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１９７０：
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Inaugurated a full-automatic Electrolytic Manganese Dioxide
Plant with production capacity of 350 tons/month.
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１９７１：
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By American ESB Corporation's strong request again, a full DAIICHI
Technology Plant for Carbon Rods manufacturing was constructed in Iran.
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１９７７：
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Gouging Carbon manufacturing business started.
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１９７８：
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Exported a full DAIICHI technology Plant for Battery Carbon Rods
manufacturing to Russian Governmental corporation.
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１９８０：
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Medical Carbon manufacturing business started.
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１９８３：
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Toyoji Kato died, and Yutaka Kato took over the presidency.
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１９８４：
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Exported a full DAIICHI technology Plant for Battery Carbon Rods
baking process to China Carbon Corporation.
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１９９０：
|
Exported again a full DAIICHI technology Plant for Battery Carbon Rods
manufacturing to Russian Governmental corporation.
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１９９１：
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Stamp Forging business started.
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１９９５：
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Inaugurated a Battery Carbon manufacturing Company (PT.INDAC)
in Indonesia.
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