8th All-Japan Open Championship — IKO (1976)
9th All-Japan Open Championship — IKO (1977)
10th All-Japan Open Championship — IKO (1978)
11th All-Japan Open Championship — IKO (1979)
12th All-Japan Open Championship — IKO (1980)
13th All-Japan Open Championship — IKO (1981)
14th All-Japan Open Championship — IKO (1982)
15th All-Japan Open Championship — IKO (1983)
16th All-Japan Open Championship — IKO (1984)
17th All-Japan Open Championship — IKO (1985)
