Ochiai was born in Saitama on 28 February 1946. After graduating from Saitama Urawa High School, he joined Toshiba in 1964. He played at offensive position. In 1966, he moved to his local club Mitsubishi Motors played in Japan Soccer League (JSL). He played in all 260 league matches in the league until 1981. In 1969, he became a top scorer and the club won the champions at JSL first time. In the 1970s he was converted to defensive position. In 1973, the club won JSL and Emperor's Cup. In 1978, the club won all three major title in Japan; JSL, JSL Cup, Emperor's Cup and he was selected "Japanese Footballer of the Year" awards. He retired in 1984. He played 267 games and scored 56 goals in the league. This 267 games is the second record in JSL after Yoshikazu Nagai (272 games). He was selected Best Eleven 10 times included for 9 years in a row (1973-1981). The club won the league champions 2 times, JSL Cup 2 times and Emperor's Cup 4 times.