吉川洋一郎

is a composer, music arranger and film producer.

Over more than thirty-five years, Yoshikawa has been an artistic director for Sankai Juku's music. Yoshikawa has produced music for news programs such as the six-part documentary, The Miracle Planet (Chikyu Dai Kiko) for NHK and for animated television series. In April 2014, Yoshikawa started music production for Baby Steps on the e-Tele anime slot at NHK Educational TV.