On July 6, 1990, at Kobe Takatsuka High School, a public school in Hyōgo Prefecture, a male teacher closed the iron school gate at the 8:30 chime as part of lateness control. A first-year girl arriving at that moment was caught by the gate, which weighed about 230 kilograms. She died.
The teacher was dismissed. A court convicted him of professional negligence resulting in death and gave him a suspended sentence.