The was a Japanese manufacturer of military aircraft during World War II. While it mainly manufactured other firms' designs, it was notable for the radical J7W "Shinden" fighter. Named after Kyushu island where the company was based.
The company originated from Fukuoka-based Watanabe Tekkà Âjo (Watanabe Steel Foundry), which started building aircraft in 1935. In 1943 the aircraft division was spun off as Kyà «shà « Hikà Âki, while the original company was renamed Kyà «shà « Heiki (Kyà «shà « Armaments).
After the war, the company was renamed Watanabe Jidà Âsha Kà Âgyà  (Watanabe Automobile Industries) and manufactured automobile bodies and parts. It was dissolved in 2001.