Michio Kuga (道郎 久賀 1928 - 13 February 1990) was a mathematician who received his Ph.D. from University of Tokyo in 1960. He lead to ramanujan conjecture from Weil conjectures with Yasutaka Ihara. He introduced Kuga fiber varieties.
One of his books, Galois' Dream: Group Theory and Differential Equations, is a series of lectures on group theory and differential equations for undergraduate students, considering such topics as covering spaces and Fuchsian differential equations from the point of view of Galois theory, though it does not treat classical Galois theory of polynomials and fields in depth.
Kuga, Michio. Galois' Dream: Group Theory and Differential Equations. translated by Susan Addington and Motohico Mulase, ISBN 978-0-8176-3688-3