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- Born in Kagoshima in 1936
- Began playing Go at the age of 12
- Kagoshima Honinbo at 17 ('52)
- All Japan Students Champion ('58, '59)
- All Japan Amateur Honinbo ('61, '63, '64, '68, '89, '97)
- All Japan Amateur Meijin ('64, '65, '86, '88)
- Amateur 7-dan (Kansai Ki-in, 1970)
- Amateur 7-dan (Nihon Ki-in, 1971)
- Amateur 8-dan (Nihon Ki-in, 2000)
- All Japan Amateur Honinbo (2003)