Develops universal-type truck grader (KB-51S), displays it at an exhibition of snowplows as the company's main product, delivers it to the Sapporo municipal government.
Develops new 1984-model snowplows for trucks at the request of Mitsubishi Motors Corp., Nissan Motor Co., Ltd., Hino Motors Ltd. and Isuzu Motors Ltd., delivers snowplows, side wings and truck graders to these companies.
Develops and improves mower(MK-80) for small rotary vehicles→ Otaru Public Works Management Office
Establishes Kyowa Plant Co., Ltd. as an affiliate in September.
Affiliates with Hassamu Plant of Kitanihon Denkyoku
Develops snow chute (SI-1) for snow removal from median strips of highways at the request of the Sapporo Construction Bureau, Japan Highway Public Corporation, delivers it for trial operation.
Large Maclay snow-spreading car (10M-6H) → Development Bureau
Develops shear-pin-free equipment (SL-1) for truck graders → Sapporo municipal government
Shear-pin-free equipment (SL-10) for motor graders → in-house test
Develops and tests large snowplow (IP-4500) for airports→ Chitose Airport