Hino Motors Corporation, Tokyo, 1947-1963
The 'Century of Japanese Motorcycles' lists Hino as one of its manufacturers but I'm not sure they really qualify. Hino has been in business under one name or another since 1910 and today is owned by Toyota and principally known for its diesel trucks. From 1947 till the very early 1960's they sold a line of three wheeled utility vehicles, but they didn't make them. They were made by another affiliate called Mitsui Seiki Kogyo Co., Ltd (三井精機工業) who are also still in business today. I'm not sure whether Mitsui Seiki also sold these under their own name, but the brand names and order of appearance were: the Orient (オリエント号), the Hanbee (ハンビー号) and the Hustler (ハスラー号). The Hustler, which replaced the Hanbee, was the same vehicle but had a steering wheel rather than handlebars. They all appear to have used 2 stroke engines.