Fuji Heavy Industries(FHI) has four divisions of diversification that support each other in technological research and advancement. Automobile: Under the Subaru name since 1958, FHI manufactures and markets Subaru automobiles to 100 countries via its 1,970 dealers worldwide. Aerospace: This division is a major contractor of aircraft, helicopters, target drones and related parts and services to the Defense Agency of Japan. Sales of the Aerospace Division are both commercial and defense-related. These products are marketed domestically to the Defense Agency as well as United States markets. Industrial Products: This division produces Robin brand equipment including generators, water pumps and engines for industrial, agricultural and recreational applications with main markets in the United States, Europe, Asia and the Middle East. Transportation Equipment: This division develops double- and high-decker buses, luxury tour buses and inner city buses, which are exported primarily to Southeast Asia, the Middle East and Africa. Domestically, FHI's principal products are buses (46 percent of divisional sales) and rolling stock (32 percent). Other major product categories include garbage or sanitation trucks and prefabricated housing.