The Tokyo District Court has dismissed appeals by two death-row inmates convicted of serial bombings at various companies in 1974 and 1975, according to judicial sources.
The petitioners were Masashi Daidoji, 58, and Toshiaki Masunaga, 58, who as members of an extremist group were convicted of the bombings that included the August 1974 attack on a Mitsubishi Heavy Industries Ltd. building in Tokyo that killed eight people and injured 165.
The court decided not to accept the evidence the two submitted in their second petitions on the grounds that it is not sufficient to warrant retrials, the sources said.
The two saw their death sentences upheld by the Supreme Court in March 1987 but filed a round of appeals in June 1993, arguing that a new examination of the bombs used in the Mitsubishi attack had shown they had no intention of killing.