[1] It then manufactured cars, motorcycles and three-wheeled trucks, or sanrin (三輪) under the Kurogane brand for the Imperial Japanese Army in Ōmori, Ōta, Tokyo.Kurogane, like many other Japanese manufacturers prospered as a supplier for the United States Army during the Korean War, but when the conflict ended in 1953, Japan entered into a recession and smaller companies suffered as a result.Kurogane found the commercial market crowded, competing with the Prince Homer, Nissan Diesel, Isuzu Elf, Mitsubishi Fuso Canter, Toyota Dyna and the Hino TH-series.In 1963 when Nissan assumed operations, the Kurogane Mighty was re-branded with minor body changes as the Datsun Cablight (Japanese article).As Mazda switched to water-cooled, inline-fours for their entire three-wheeled truck lineup, Kurogane soon followed suit and added the 1046-cc E-10 in 1959 and then the 1.5-L E-15 engine, which was also used in their four-wheeled vehicles.