Working with long-time collaborator Christopher Mancinelli, Kitajima has combined solo recordings, film soundtracks and production work at his twenty four track analog and eight track digital recording studio, East Quest Studios, in Woodland Hills, CA.

Kitajima's soundtrack compositions have been heard in Japanese films such as Chugoku Kiko, Kokushimuso and China – The Unveiled Highlands, American films such as Samurai Cowboy and Captive Hearts and PBS documentaries such as Faces Of Japan, Japan Today and Voices From The Land. As a producer, Kitajima has overseen albums by Masakuzo Yoshizawa, Sayuri Ishikawa, Nobuhiro Ikehata and Mari Henmi. ~ Craig Harris