Ozaki was born in
Tokyo on March 7, 1960. After graduating from high school, he joined
Mitsubishi Motors in 1978. In 1978, the club won all three major title in Japan;
Japan Soccer League,
JSL Cup and
Emperor's Cup. The club also won
1980 Emperor's Cup,
1981 JSL Cup and
1982 Japan Soccer League. He was also selected Japanese Footballer of the Year awards in 1982. In July 1983, Ozaki moved to Germany and joined
Arminia Bielefeld. He was the second Japanese to play in the
Bundesliga after
Yasuhiko Okudera. In 1985, Arminia Bielefeld was relegated to
2. Bundesliga. From 1988, he played at
FC St. Pauli (1988–89) and
TuRU Düsseldorf (1989–90). In 1990, Ozaki returned to Japan and joined Mitsubishi Motors (later
Urawa Reds). He moved to
Verdy Kawasaki in 1993. He retired in 1994. ==International career==