He became a professional at the age of 20, and was immediately promoted to 3 dan, on the basis of a 4-2 victory against Suzuki Tamejiro. Prior to this point, he had met some professionals, but never had a teacher (Fairbairn, The Go Consultants, p. 75).
Segoe was the official referee for the atomic bomb game.
Segoe commited suicide in 1972.
In 2009, Segoe was inducted into the Nihon Ki-in Hall of Fame.
- Segoe Tesuji Dictionary
- Segoe Tsumego Dictionary
- Go Proverbs Illustrated
- 囲碁の力を強くする本 (The Book to Increase Your Fighting Strength at Go) -- A modern classic. Still in print after almost 40 years.
- 围棋死活辞典 (Weiqi Life and Death Dictionary) -- 1000 Life and Death Problems in 30 Categories. Out of print, but may be the rare out of print life and death book for professionals by Segoe Kensaku that Kobayashi Koichi has worked through 20 times (as of Go World 37, Autumn 1984)." ISBN 7-5337-0315-5 The chinese name and ISBN given here are for the chinese version of the book printed in Shanghai.
- Oshiro Gofu. Complete collection of Castle Games, in 10 volumes, edited in 1950-1951.
- Hashimoto Utaro
- Go Seigen
- Seo Hisashi
- Hisai Keishi
- Sanno Hirotaka
- Cho Hun-hyeon
- Iyomoto Momoichi
- Yoneyama Toku
- Inoue Ichiro
- Suzuki Keizo
- Matsuzawa Tsujiro