Masaji Kitano

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Masaji Kitano
Masaji kitano.jpg
Lieutenant General Masaji Kitano
Born (1894-07-14)July 14, 1894
Tokyo, Japan
Died May 17, 1986(1986-05-17) (aged 91)
Tokyo, Japan
Allegiance Empire of Japan
Service/branch War flag of the Imperial Japanese Army.svg Imperial Japanese Army
Years of service 1921 -1945
Rank Lieutenant General
Commands held Unit 731, Kwantung Army
Battles/wars Second Sino-Japanese War
World War II

Masaji Kitano (北野政次 July 14, 1894 – May 17, 1986) was a medical doctor, microbiologist and the lieutenant general of the Imperial Japanese Army. He was the second commander of Unit 731, a covert biological and chemical warfare research and development unit responsible for some of the most notorious war crimes carried out by Japanese personnel.


Masaji Kitano graduated from School of Medicine, Tokyo Imperial University in 1919 with a medical doctor degree. In 1921, he was commissioned lieutenant as an army surgeon. In 1932, he worked in the First Army Hospital in Tokyo. He later left the hospital service transferring to the Army Surgeon School. In 1936, he was dispatched to Manchukuo, part of the Empire of Japan and became a professor of Manchu School of Medicine, teaching microbiology.

In 1942, he was appointed the second commander of Unit 731. His predecessor was Shiro Ishii. In April, 1945, he was promoted to lieutenant surgeon general and appointed commander of the 13th Army Medical Corps. After Japanese surrender, August 1945, he was detained in a POW camp in Shanghai. Like all involved[citation needed] with Unit 731 or Japanese biological warfare, he was repatriated to Japan in January 1946.

After he came back to Japan, he worked for Green Cross, a Japanese Pharmaceutical company. In 1959, he became head of the plant in Tokyo and the chief director of that company. He was the chief funeral commissioner of Shiro Ishii, a fellow Unit 731 member.

Kitano died in Tokyo in 1986.