Focus was a Japanese brand owned by Marui, a Japanese trading company with roots in the shoe industry. They reportedly diversified into bicycles circa 1963 with their Orions brand. In the USA they are better known for their SR and Shogun lines of bicycles and their Tioga line of ATB tyres, components and accessories. Like most Japanese trading companies, Marui did not own a factory that manufactured product but relied on contractors. There's no surprise to see Focus bicycles being manufactured by Araya, as they they were also a prime source for the SR sister brand.