| May1960． | Established Mishima Paper Co., Ltd. as a company to manufacture
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| Apr1966． | Started manufacturing and distribution toilet paper
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| Nov1984． | Started manufacturing and distributing paper diaper at Doi Factory
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| Oct1990． | Started manufacturing and distributing cleaner pack
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| Jan1993． | Changed company name to <I’m Corporation>
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| Jan1999． | Started manufacturing Functional Coating film
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| Dec2004． | Established Factory No3
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| Mar2005． | Established I’m corporation (Suzhou) Co.,Ltd |
| Apr2006． | Acquired ISO4001:2004 certification
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| May2006． | Acquired ISO9001:2000 certification
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