Kohsaburo Iesaka

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Kohsaburo Iesaka (家坂 幸三郎 Iesaka Kōsaburō?, 1878 – 1952) was a Japanese Christian physician who headed the Miyako Nanseien Sanatorium(1933–1938) and Okinawa Airakuen Sanatorium(1947–1951). The church he created as "Yomigaerino Kai" still remains in the Miyako Nanseien Sanatorium, as well a s a church of Nippon Sei Ko Kai and a catholic church.

Kohsaburo Iesaka or Kōzaburo Iesaka
Born 1878
Niigata Prefecture, Japan
Died 1952
Nationality Japan
Occupation Physician, Director of leper hospitals
Known for Physician, Christian, Director of Miyako Nanseien Sanatorium and Okinawa Airakuen Sanatorium. The church he created as "Yomigaerino Kai" still remains in the Miyako Nanseien Sanatorium


His address when assuming the post[edit]

  • Previously, the directors of the sanatorium came from the Police Section of the Okinawa Prefecture, and he was the first physician-director. "As the director of this sanatorium, I will treat your diseased body as well as your soul, and thereby, will let your walk on the road of light, and let you be brought to life (Yomigaeru) through God. I will do my best.[1]

Iesaka and Christianity at Miyako[edit]

  • In 1934, Nakakaneku, who was under the influence of Keisai Aoki came to Miyako and Iesaka and Nakakaneku became friends. In 1935, 7 patients were babtized through Kanji Otobe who came from the church of Hannah Riddell. On April 25, 1935, an organization, "Yomigaeri No Kai", was formed with 20 Christians and 30 people interested in his religion. This church outlived the war.


  • He left the sanatorium in 1938 for private reasons. Between 1946 and 1951, he became the director of Okinawa Airakuen Sanatorium and he died in 1952.


  • Report of medical examination for leprosy at Hisamatsu, Miyako(1939), Repura, 10, 148.
    • At Kugai, 16 patients were found among 1,176 inhabitants and 14 patients at Matsubara among 1,525 inhabitants.
  • Report of medical examination for leprosy in Yonaguni Island(1939), Repura 10,152.
    • 35 patients were found and the density was 77.1 per 10,000 inhabitants. All patients were hospitalized.

His reputation in Miyako Nanseien Sanatorium[edit]

  • He was popular with the patients since barbed wire fences and a special prison were not built.

In Okinawa Airakuen Sanatorium[edit]

  • Michiko Ito, a Christian nurse who worked with him in Okinawa Airakuen Sanatorium said that he was a liberal person with a view against the segregation policy of leprosy patients. Iesaka persuaded those against leprosy patients into believing that they were also brothers and sisters, read the Bible and paid with his own pocket money for people with leprosy. He used to say that if the circumstances were good, and proper rest and food were available, leprosy will no appear. Ito made introvenous injections of Promin at the order of Iesaka.
  • [2]


  • 宮古南静園『宮古南静園 三十周年記念誌』、1961年
  • 宮古南静園『開園50周年記念誌』、1981年
  • 入園者自治会『創立70周年記念誌』宮古南静園、2001年
  • 沖縄らい予防協会『沖縄のらいに関する論文集(医学編)』、1979年
  • 沖縄愛楽園『愛楽』、1967年
  • 宮古南静園編『沖縄県ハンセン病史料集』
  • 沖縄愛楽園『「愛楽誌」開園15周年記念号』、1953年


  1. ^ 30th year anniversary book of Miyako Nanseien(1961)
  2. ^ オアシス 「そして人がいた」坂本光三郎