| 1964 | Shizuto Yamauchi founds Yamauchi Ironworks under private management in 3651-2, Takehara-cho, Takehara-shi |
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| 1988 | Yamauchi Ironworks Ltd. is established as a corporation. (Capital: 1 million yen)
Shizuto Yamauchi is inaugurated as Representative Director. |
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| 1992 | The head office is moved to a factory built in 1957-1, Tamari-cho, Takehara-shi. |
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| 1992 | Yamauchi Ironworks Ltd. is reorganized as TIME Co., Ltd. (Capital: 10 million yen). Hideaki Yamauchi is inaugurated as Representative Director. |
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| 1996 | The capital is increased to 30 million yen. |
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| 1997 | TIME is chosen as a certified company of the Small and Medium Enterprise Creative Activities Promotion Law of Hiroshima. |
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| 1999 | New factory including an assembly factory is completed. |
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| 2000 | TIME receives an investment from Hiroshima Industrial Promotion Organization (bond with warrants). |
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| 2002 | ISO9001:2000 certification is acquired. |
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| 2004 | The head office is moved to Mihara new factory. |
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| 2005 | Time develops a high frequency quadrupole accelerator in cooperation with Tokyo Institute of Technology. |
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| 2006 | A clean room is installed and the cooperation with Rasco Co., Ltd. is strengthened. |
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| 2008 | Time develops a DT type accelerator in cooperation with Tokyo Institute of Technology. |
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| 2009 | ISO9001/2008 is renewed. |
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| 2012 | TIME takes over and commercializes the business of joining technology that applies the friction stir joining (two-dimensional accumulation piping). |
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| 2017 | Second Plant Completed |
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| 2020 | Received order for accelerator for Hungarian National Academy of Sciences.ISO 9001/2015 version updated. |
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| 2023 | Issei Yamauchi appointed as representative director |
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