In December 2005, Oguro was signed by French club Grenoble, where he appeared in 17 Ligue 2 matches.

[5] In June 2008, Oguro returned to Japan and moved to J1 League side Tokyo Verdy.

In 2010, Oguro moved to J2 club Yokohama FC and scored 12 goals in 16 matches until June.

[8] However on 4 February, Oguro moved to Chinese Super League side Hangzhou Greentown for the 2013 season, and rejoined manager Takeshi Okada, whom he played under at Consadole Sapporo and Japan national team.

[9] In January 2014, Oguro returned to Japan and signed with J2 club Kyoto Sanga FC.

[12] Oguro was chosen for the Japan national team in 2005 for the 2006 World Cup qualifying games.