The Noborito Research Institute (登戸研究所/Noborito Kenkyūjo), officially the Army Ninth Technical Research Institute (第9陸軍技術研究所/Dai-kyū Rikugun Gijutsu Kenkyūjo), was a military development laboratory run by the Imperial Japanese Army from 1939 to 1945. Based at a compound in the Noborito area of Tama-ku, Kawasaki, Kanagawa, the institute developed special weapons and equipment for covert operations. Noborito's projects included intelligence and spycraft items, counterfeit Chinese currency, chemical and biological weapons, and the Fu-Go balloon bomb.
1st variation.