Prime Minister's Cup

Japanese title 1957-1981, restricted entry (middle-ranked pros). Named for Hatoyama Ichiro.

Winners:

1957 Fujisawa Hideyuki

1958 Okubo Ichigen

1959 Hasegawa Akira

1960 Ohira Shuzo

1961 Kano Yoshinori

1962 Hayashi Yutaro

1963 Sakakibara Shoji

1964 Miwa Yoshiro

1965 Otake Hideo

1966 Hoshino Toshi

1967 Suzuki Goro

1968 Ishida Yoshio

1969 Takagi Shoichi

1970 Kojima Takaho

1971 Takemiya Masaki

1972 Kobayashi Koichi

1973 Takemiya Masaki

1974 Kobayashi Koichi

1975 Takagi Shoichi

1976 Kobayashi Koichi

1977 Awaji Shuzo

1978 Nakamura Hidehito

1979 Haruyama Isamu

1980 Fukui Masaaki

1981 Awaji Shuzo