The Nakajima Aircraft Company was a prominent Japanese aircraft manufacturer and aviation engine manufacturer throughout World War II. It continues as the car and aircraft manufacturer Subaru.

The Prince Motor Company was an automobile marque from Japan which eventually merged into Nissan in 1966. It began as the Tachikawa Aircraft Company, a manufacturer of various airplanes for the Japanese Army in World War II, e.g., the Ki-36, Ki-55 and Ki-74. Tachikawa Aircraft Company was dissolved after the war and the company took the name Fuji Precision Industries. It diversified into automobiles, producing an electric car, the Tama, in 1946, named for the region the company originated in, Tama, using the Ohta series PC/PD platform. The company changed its name to Prince in 1952 to honor Akihito's formal investiture as Crown Prince of the nation. In 1954 they changed their name back to Fuji Precision Industries, and in 1961 changed the name back again to Prince Motor Company. In 1966, they became part of Nissan, while the Prince organization remained in existence inside Nissan, as Nissan Prince Store in Japan until Nissan consolidated the Prince dealership network into "Nissan Blue Stage" in 1999.