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Two judges scored it 117-111, while the other judge counted it 116-112 in favour of the defending champion.
It was Reveco's third defence of the title since he defeated Jean Piero Perez of Venezuela by a knockout to become the interim champion in June 2011.
The 29-year-old Reveco, who became the full champion after his second defence, improved his record to 30 wins, including 16 KOs, against one defeat.
It was the first attempt at a world title for Kuroda, ranked ninth in the WBA, who saw his record reduced to 21 wins, including 13 KOs, against four defeats and two draws.