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May,1970
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Founded building comprehensive management industry in Tokyo Tachikawa Hagoromo-cho |
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July,1980
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Ministry of Health and Welfare ring No. 367 "air environmental measurement," "water storage tank cleaning" is subject to specified the Minister of Health and Welfare designation trader |
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June,1983
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Receive from Tokyo Public Safety Commission certification of "security industry" |
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May,2000
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ISO 9001(2000) certification |
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September,2001
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Receive a registration permission of "fire-fighting equipment business" than Tokyo Fire Department |
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January,2004
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Opened Shonan branches in Chigasaki |
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