The Tokyo District Court sentenced three former executives of the major construction firm Shimizu Corp. to suspended prison terms Tuesday for their involvement in the 1992 bribery of then Ibaraki Gov. Fujio Takeuchi over a prefectural construction project.

The court sentenced former Shimizu Chairman Teruzo Yoshino, 82, to two years in prison, suspended for four years; former Vice Chairman Hiroyuki Kohyama, 74, to 18 months suspended for four years; and former Executive Director Akikazu Matsumoto, 66, to 18 months, suspended for three years.

The three were found guilty of being involved in the paying of 10 million yen to Takeuchi, 82, around Dec. 12, 1992, for his assistance in securing a sewerage construction contract for the firm from the prefectural government and to ask him to help Shimizu obtain more public works contracts, according to the court.