Okubo Ichigen

(大窪一玄) (1929-2015) Nihon Ki-in pro, 9 dan in 1968. Retired in 1999. Earlier name Yukio (幸男). Pupil of Masubuchi Tatsuko.

His pupils are Shirae Haruhiko, Hashimoto Yujiro, Sato Fumitoshi, Takabayashi Takuji and Mizuma Toshifumi.

Challenged for the 1965 Oza-title.