Ichirou Mizuki has a Theme Song Performance credit on Great Mazinger.
theme song performance
TV anime / 1974
theme song performance (ed)
Movie / 1973
insert song performance
TV anime / 1991
theme song performance (op, ed)
OVA / 1990
theme song performance (op)
TV anime / 1971
Movie / 1975
TV anime / 1972
TV anime / 1977
TV anime / 1982
Short TV anime / 2000
Tsuneo Takae / Japanese
Movie / 2013
Short TV anime / 2011
music performance
Music video / 2007