Tatsuro Toyoda, the American-educated son of the founder of the Toyota Motor Corporation and a major figure in the company’s international expansion, died on Dec. 30. He was 88.

The cause was pneumonia, the company said on Saturday in announcing his death. It did not say where he died.

Mr. Toyoda served as Toyota’s seventh president, from 1992 to 1995, and led the company’s first American factory, an unprecedented collaboration with General Motors that fused Japanese factory methodology with the American labor force and union system.

The factory, called New United Motor Manufacturing Inc., and based in Fremont, Calif., led to far-reaching changes in how American factory work was done and spurred Toyota’s international growth. It produced the Chevrolet Nova and the Toyota Corolla, among other vehicles, before closing in 2010.