These are NOT official warning infographics, but I felt inspired to help people who want to post warnings in Japanese and either don't know how to make signs or don't understand Japanese. Clockwise from top left: STOP, DANGEROUS, TOXIC, DO NOT ENTER (if you followed the clockwise direction the last icon you read should be the lower left hand side.) These are warnings written in Japanese, I hope you find them useful.
Japanese Warning Infographic Icons free icon was designed by j4p4n for icons Png and presented to its users.
j4p4n
12/28/2017