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| 1919 |
Taoka Shouten is established. |
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| 1922 |
Production of dyes begins. |
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| 1934 |
Taoka Dystuffs Manufacturing Co., Ltd. is established. |
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| 1944 |
Production of synthetic phenol begins. |
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| 1949 |
Stock is listed on Osaka Securities Exchange. |
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| 1958 |
Metal complex dyes commercialized. |
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| 1961 |
Japan's first instant adhesive (Cyanobond™) commercialized. |
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| 1965 |
Production of synthetic cresol begins. |
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| 1970 |
Production of resorcine begins. |
| 1972 |
Company name changed to Taoka Chemical Co., Ltd. |
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| 1977 |
Taoka Chemical Analysis Center Co., Ltd. established. |
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| 1983 |
Production of photographic and pharmaceutical intermediate begins. |
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| 1986 |
Taoka Service Co., Ltd. established. |
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| 1992 |
Current head office building (office and research buildings) completed. |
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| 1996 |
Automated warehouse completed. |
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| 1997 |
Multipurpose synthetic production plant completed. |
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| 2000 |
Merged with Sanken Chemical. Co., Ltd.
Pharmaceutical intermediate production plant completed. |
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| 2002 |
Taoka (Tianjin) Fine Chemical Co., Ltd. is established.
Taoka Chemical India Private Limited established. |
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