Yasuhira Kiyohara (清原 康平, married name Yasuhira Yukawa; January 14, 1914 – April 7, 2001) was a second lieutenant in the Imperial Japanese Army who was sentenced to life imprisonment for directing a mob in the February 26 Incident of 1936. He was assigned to the 3rd Company, 3rd Infantry Regiment. He was granted amnesty in December 1941. After amnesty, he became the president of an airplane company. After the World War II, he was engaged in various enterprises related to Korea since he was acquainted with Korean President Park Chung-hee.
Source: “Yasuhira Kiyohara”, English Wikipedia (CC BY-SA 4.0), excerpt