The Otomo was a Japanese automobile built by Junya Toyokawa from 1924 to 1927 at the Hakuyosha Ironworks in Tokyo. It was meant to build upon his experimental Ales cars of 1921. Otomo offered an air-cooled 944 cc four-cylinder light car, available as two- or four-seat tourer or saloon (sedan), or as a van. This was joined in 1926 by a water-cooled 24 hp model. During this time, Otomo was one of only two Japanese automakers, joined by Gorham (which was financed by American aircraft engineer William R. Gorham).