Mass-producing the rotary — and refusing a foreign capital tie-up (1967)

How far to entrust the business to a technology of one’s own

The heart of this decision was that, under the pressure of capital liberalization and industry consolidation, a latecomer chose independence through a technology of its own rather than a foreign tie-up or a merger. For Toyo Kogyo, unable to challenge giants like Toyota and Nissan on scale, the rotary — which no rival held — was one of the few weapons that let it stand without being swallowed into the coming wave of mergers. The technical feat of the world’s first mass production gave that choice substance. When Nikkei Business praised the scrapping of a capital tie-up in 1972, it was because the proprietary technology was working as the collateral of independence.

Yet the weapon of independence became, unchanged, its greatest weakness. When the oil crisis put fuel economy in question, the rotary’s strength fed straight into shrinking demand, and in 1979 Toyo Kogyo turned of its own accord toward a tie-up with the very foreign capital — Ford — that it had once refused. Differentiation by proprietary technology means that, once the environment around that technology changes, the same strength turns into a burden. How far to bet on distinctiveness, between running ahead of the age with technology and entrusting too much of the business to it — Toyo Kogyo’s rotary leaves that question as one case study.