Embarrassed by the recall of thousands of kitchenware pots after they appeared to leach lead when heated, discount-furniture king Akio Nitori took an unusual step. He hired a team of auto industry engineers to revamp the quality assurance and testing division.

Ten years later, every one of Nitori Holdings' products must survive a furniture torture chamber before they're ready for showrooms. Chair backs are prodded with hydraulic presses. Towels are spun in centrifuges to see if they stretch. Technicians wrestle with the legs of coffee tables to make sure they'll hold up to a rambunctious house party.

Members of a Nitori Holdings Co. quality control team try different methods of sitting on chairs during a product test in Tokyo on April 25.
Members of a Nitori Holdings Co. quality control team try different methods of sitting on chairs during a product test in Tokyo on April 25. | BLOOMBERG