| November, 1979 | Establishment of Intensive-Care Nursing Home KEITOKU |
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| July, 1980 | Initiation of Short Term Admissions Care |
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| January, 1995 | Start of Food Service Operations |
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| February, 1997 | Initiation of Awata Day Service Operations |
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| April, 2000 | Establishment KEITOKU Home Care Service Operations |
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| April, 2002 | Initiation of KEITOKU Day Service Operations |
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| May, 2013 | Establishment KEITOKU At Home Healthcare Clinic |
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| May, 2017 | Opening of New Facility at Hinodecho |
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| March, 2018 | Completion of the designated manager of Awata Day Service Operations |
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| December, 2018 | Initiation of Nursery School |
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| October, 2019 | End of Food Service Operations |
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