The Japanese Starfighter was given the designation F-104J, the J standing for Japan. It was similar in overall structure to the F-104G, but was equipped as an all-weather interceptor rather than as an air-to-ground strike aircraft. The first few Japanese Starfighters would be assembled in Japan from Lockheed-supplied components, but ultimately the Starfighter would be built in Japan entirely from Japanese manufactured components. Mitsubishi Heavy Industries was given the responsibility for the license manufacture of the Starfighter in Japan.