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Sou Osada

Gerontology Research Group
Validated By: Gerontology Research Group On Date: Aug. 02nd 2012

Sou Osada (Japanese: 長田ソウ) was a validated Japanese supercentenarian who was the oldest living person in Aichi Prefecture at the time of her death.


Osada was born in Japan on 2 January 1901. She had at least one child, a daughter named Tomi.

At the age of 107, she was living in Komaki, but at some point she moved into a rehabilitation hospital in Kasugai, a neighboring city. In 2012, when she was 111 years old, a special event was held at the hospital to celebrate the longevity of all patients over the age of 100. She was presented with a congratulatory letter and a bouquet of flowers, and the hospital manager described her as the “idol of the hospital.” Osada was said to be anticipating an upcoming visit by a group of young police volunteers from a local police academy during this time. Even at the age of 111, she still had a hearty appetite and never left any food uneaten.

Osada passed away in Kasugai, Aichi Prefecture, Japan, on 9 February 2013, at the age of 112 years, 38 days.

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In September 2008, she was reported as the oldest living person in Komaki City, at the age of 107.

On 20 May 2012, following the death of 112-year-old Ken Ishikawa, she became the oldest living person in Aichi Prefecture.

Her age was verified by Japan’s Ministry of Health, Labour, and Welfare (MHLW), as well as Anson Davis, and validated by the Gerontology Research Group on 2 August 2012.

Following her death, Tsuya Miura succeeded her as the Prefecture’s oldest living resident.

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* “111歳 病院のアイドル 県内最高齢の長田さん祝う” – Chunichi Shimbun, 16 September 2012

* “112歳 長田さん死去 県内最高齢=愛知” – Yomiuri Shimbun, 11 February 2013