It was competitor Nippon Seiko (now known as NSK) ...

NSK name suit Split Kuwana demand combat Mukogun factory facility Uchibori Manchuria late 1940s competitor production operations new company World War II organization Nippon Seiko full capacity NTN Formation Tomoe Trading ball bearings Mukogawa plant former company Mie Prefecture war-torn country Hyogo Prefecture Nishizono Ironworks domestic subsidiary joint-stock company raw materials shortages Japanese bearing industry manufacturing productivity Toyo Bearing Manufacturing intracontinental neighbors friction reducing components Japanese bearing manufacturers Showa Bearing Manufacturing Company