After graduating from Chuo University, he joined Hitachi (later Kashiwa Reysol) in 1991.
In 1996, he moved to newly was promoted to J1 League club, Kyoto Purple Sanga.
After retirement, Okuma started coaching career at Avispa Fukuoka in 1999.
In September 2014, top team manager Marco Pezzaiuoli was sacked for poor results.
This biographical article related to a Japanese association football midfielder born in the 1960s is a stub.