Mamoru Fujisawa (藤澤 守, Fujisawa Mamoru, born December 6, 1950), known professionally as Joe Hisaishi (久石 譲, Hisaishi Jō), is a Japanese composer, musical director, conductor and pianist, known for over 100 film scores and solo albums dating back to 1981. Hisaishi's music has been known to explore and incorporate different genres, including minimalist, experimental electronic, Western classical, and Japanese classical. He has also worked as a music engraver and arranger.

He has been associated with director and animator Hayao Miyazaki since 1984, having written scores for all but one of Miyazaki's films. He is also recognized for his music for filmmaker 'Beat' Takeshi Kitano, including A Scene at the Sea (1991), Sonatine (1993), Kids Return (1996), Hana-bi (1997), Kikujiro (1999), Brother (2000), and Dolls (2002), and for the video game series Ni no Kuni. He was a student of anime composer Takeo Watanabe.

Source: Wikipedia (https://en.wikipedia.org/wiki/Joe_Hisaishi)