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June
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1956 |
Tokai Henshoku K.K. established with investment from Kakiuchi Shoji K.K. (the present Kakiuchi K.K.) and Matsuya Orimono in Hon-cho, Nihombashi, Chuo-ku, Tokyo as a specialized manufacturer of insect netting. Tokyo office established as headquarters at the same time. |
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October
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1956 |
Hamamatsu Plant established in the city of Hamamatsu, Shizuoka Prefecture. |
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May
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1957
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Manufacture and sale of insect netting made of vinylidene chloride commences. |
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June
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1959
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Manufacture and sale of insect netting made of vinyl chloride commences. |
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September
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1959
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Osaka office established in Higashi-ku, Osaka. |
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November
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1962
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The company enters the field of agricultural materials as the manufacture of netting to protect against wind, moths, frost, and sunlight gets underway. |
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August
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1964
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Fukuoka office established in Tenjin in the city of Fukuoka. |
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December
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1964
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Fukuroi Plant established in the city of Fukuroi, Shizuoka Prefecture. |
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April
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1965
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Manufacture and sale of insect netting made of polypropylene commences. |
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April
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1967
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Tozai Kasei K.K. established in the city of Okayama to manufacture polyethylene monofilament. |
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December
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1968
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Mitsubishi Kasei K.K. (the present Mitsubishi Kagaku K.K.) invests capital in the company. |
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February
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1970
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Polyethylene tape yarn manufacturing facility built at Fukuroi Plant. Production of tape yarn commences. |
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October
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1970
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Company name changed to Dio Chemicals, Ltd. |
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April
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1982
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Thread manufacturing facilities sold to Tozai Kasei K.K., control of production of tape yarn transferred. |
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April
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1983
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Manufacture and sale of landscaping netting for use in public works projects commences. |
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May
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1990
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Raschel looms introduced at Fukuroi Plant. Manufacture and sale of knit products commences. |
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October
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1990
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Fukuoka office upgraded to full "business office" status. |
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December
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1992
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Headquarters moves to Horidome-cho, Nihombashi, Chuo-ku, Tokyo. |
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May
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1994
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Stock registered with Japan Securities Dealers Association. |
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September
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1994
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Headquarters moves to Hon-cho, Nihombashi, Chuo-ku, Tokyo. |
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February
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1998
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Kakegawa Plant established in the city of Kakegawa, Shizuoka Prefecture. |
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February
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1998
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Tozai Kasei K.K. moves from the city of Okayama to the city of Kakegawa. |
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February
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1999
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Headquarters moves to Odemma-cho, Nihombashi, Chuo-ku, Tokyo. |
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October
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2000
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Stock listed on the Second Section of the Tokyo Stock Exchange. |
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November
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2001
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Merged our subsidiary company(Tozai kasei K.K.) |
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September
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2003
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Built up a new factory building and removed all of machineries for production to a new building.
Renovated existed factory building to warehouse. |
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June
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2004
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Headquarters moves to Akashi-cho, Chuo-ku, Tokyo. |
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