The unidentified Japanese man, with a bleeding forehead, reportedly pulled out a knife and attacked a staff member at a train station in Seika in Kyoto prefecture around 6.30am on 11 February.
An injured man reportedly attacked a staff member at a train station in Kansai region in western Japan on Tuesday.
Last month, a knife attack outside Nagano Station in central Japan left one person dead and two injured.
In 2021, a 24-year-old man dressed as the Joker attacked passengers on a Tokyo train on Halloween night, injuring 17 people.
Station staff and bystanders reportedly subdued the man and alerted the police.
