History
- = Calsonic
- = Kansei
- = Calsonic Kansei
- = Marelli
- 1972
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Los Angeles Office established in U.S.A.
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Yoshimi Plant established in Saitama Prefecture
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Started full-scale production of instrument panels
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Started the production of intermitters
- 1973
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Listed on Tokyo Stock Exchange, 1st section
- 1974
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Gunma Plant established
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Started the production of switching modules
- 1975
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Production of radiators exceeds 10 million units
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Started the production of Japan's first pellet-type catalytic converters
- 1976
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Calsonic Inc. (former Calsonic North America Inc. California plant) established
- 1977
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Kyushu Plant established in Nakatsu City, Oita Prefecture
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Kyushu Plant established in Usa City, Oita Prefecture
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Started the production of quartz clocks for automobiles (Japan's first use of digital IC)
- 1978
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Listed on Tokyo Stock Exchange, 2nd section
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Started the production of pp composite instrument panels
- 1979
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Started the production of trip computers (Japan's first use of CPU in actual vehicles)