Yoshihiko Okamoto was born in 1925, in Iwami, Tottori Prefecture, Japan.
Kido Okamoto died in 1939.
Fuji Okamoto died in 1984.
Rai Okamoto died in 1993.
Yoshihiko Amino died on February 27, 2004 at the age of 76.
Tetsuo Okamoto died on 2007-10-01.
Tadanari Okamoto died on February 16, 1990.
Tarō Okamoto died on January 7, 1996 at the age of 84.
Kanoko Okamoto died on February 18, 1939, in Yokosuka, Kanagawa, Japan of stroke.
Kihachi Okamoto died on February 19, 2005, in Kawasaki, Japan of esophagus cancer.
Yoshihiko Kazamaru was born in 1958.
Yoshihiko Funazaki was born in 1945.