The world of Ryuichi Sakamoto is characterised by stark contrasts and by contradictions -- both apparent and real. He has an obsession with synthesizers and the latest music technology, and as a member of the Yellow Magic Orchestra he was one of the inventors of techno-pop. Yet some of his greatest and most well-known work has used the vehicle of that centuries-old mainstay of Western classical music, the orchestra. (Source of quote).
In the video below Sakamoto discusses his approach to music, and confirms its eclectic nature.
Follow this link for his some of his classical western music.
Follow this link for some of his music in more popular genres.
Here is an interview that he gave to Fader Magazine.