| 1942 Jun | Incorporated as a distributor of home-delivery medicines to South Asian countries under the support by the Toyama Prefecture Government.(Daito-A Yakuhin Koeki Tosei Kaisha) |
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| 1948 | Corporate name changed to Daito Koeki Co., Ltd. |
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| 1949 | Built the first manufacturing plant and started manufacturing of Formulations |
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| 1971 | Research Laboratory was established and manufacturing of APIs started |
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| 1979 | Plants remodeled to meet GMP requirements and an experimental plant was constructed. |
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| 1985 | New laboratories constructed, manufacturing of OTC medicines started |
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| 1989 | The second manufacturing plant for APIs constructed. |
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| 1992 | Corporate name changed from Daito Corporation to Daito Pharmaceutical Co.,Ltd. |
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| 1989--1997 | Four times FDA inspections performed in our plants. |
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| 1997 | Plant for packaging of APIs constructed |
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| 1999 | The third manufacturing plant for APIs constructed |
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| 2001 | The fifth formulation plant constructed |
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| 2005 | The Head Office transferred to the present place |
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| 2007 | The third packaging plant and the fifth manufacturing plant for APIs constructed |
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| 2007 | Chicago Office established in the USA |
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| 2008 | The sixth formulation plant constructed (Complied with c-GMP) |
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| 2008 | DPA(Daito Pharmaceuticals America) inc. opened in Chicago |
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| 2010 Mar | Listed on the 2nd section of Tokyo Stock Exchange. |
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| 2011 Mar | Listed on the 1st section of Tokyo Stock Exchange. |
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