On November 30th, 2007, Japan's Nagoya District Court accepted Hiroko Uchino's claim that her husband, Kenichi, a third-generation Toyota employee, was a victim of karoshi (death from overwork) when he died in 2002 at the age of 30. He collapsed at 4am at work, having put in more than 80 hours of overtime each month for six months before his death. “The moment when I am happiest is when I can sleep,” Mr Uchino told his wife the week of his death. He left two children, aged one and three.

As a manager of quality control, Mr Uchino was constantly training workers, attending meetings and writing reports when not on the production line. Toyota treated almost all that time as voluntary and unpaid. So did the Toyota Labour Standards Inspection Office, part of the labour ministry. But the court ruled that the long hours were an integral part of his job. On December 14th the government decided not to appeal against the verdict.

The ruling is important because it may increase the pressure on companies to treat “free overtime” (work that an employee is obliged to perform but not paid for) as paid work. That would send shockwaves through corporate Japan, where long, long hours are the norm.