Sakata Eio
坂田 栄男 (Sakata Eio) 9 dan Japanese professional player who collected a record number of big titles from 1950 to 1975. He was born on 1920-02-15. His teacher was Masubuchi Tatsuko.
Sakata Eio is author of many books in Japanese. Amongst those translated into English are Modern Joseki and Fuseki, The Middle Game of Go, Tesuji and Anti-Suji of Go and Killer of Go.
In 1964, Sakata became the first person to hold both the Meijin and the Honinbo titles simultaneously. During his professional career, Sakata won 64 title matches, a new record at that time.
Sakata's pupils are Aragaki Takeshi, Sasaki Tadashi, Kato Akihiro, Kono Mitsuki, and Nakayama Kaoru.
Links
http://www.andromeda.com/people/ddyer/age-summer-94/encounter.html
http://www.fqjr.qc.ca/go/sakata/sakata_a.html