Alliant Computer Corp, Littleton, Massachusetts has decided that Japan is its most promising foreign market and will establish a subsidiary there, possibly calling it Nippon Alliant Computer, in April. It told the Japanese press that it plans to build both a factory and a research centre in Japan within the next three years, and that it will make the Japanese market its main focus for overseas sales. Competitors there are seen as Convex Computer and Fujitsu Ltd. The new subsidiary will supply the Alliant FX/ series of minisupercomputers to 20 distributors, going after both financial and manufacturing users; Apollo sold 12 Alliant FXs in Japan.