Mitsuboshi Belting Ltd. (TYO:5192) is riding strong sales of its E-Power and other energy-efficient V-belts, particularly for air-conditioning applications in factories and commercial buildings. The company’s synchronous belts for injection molding machines are also selling well. Expanding sales of high-torque belts are contributing to healthy business. Looking at the general industrial transmission belt market in Japan for the foreseeable future,…