I just bought a very fine vinyl copy of Azuma's self-titled 1987 album on Private Music. A positive surprise, as I just had heard one of his tracks. Melodic stuff, a lot of it more vibrant than his countryman Kitaro. ARMOR could almost have been Jan Hammer in Miami Vice mode.
He released some albums in Japan in the early 80s before Private Music put out two records in 87/88. After that he released some stuff in his native land again. He sadly passed away in 2012 of pneumonia, 64 years old.