Complex sentence: Sato has published more than a hundred books on film, and is one of the foremost scholars and historians addressing Japanese film, although little of his work has been translated for publication abroad.
Split into simpler sentences: Sato has published more than a hundred books on film, and is one of Japan's foremost scholars and historians addressing film. He is also recognized as one of the world's foremost authorities on Japanese cinema specifically, although little of his work has been translated for publication abroad.