A Panasonic CD player, Sony headphones, Toshiba batteries. An extensive array of well-known, Japanese-made products is displayed at an office in Beijing, giving the impression that they are designed to promote imports.

The truth, however, is the opposite.

The 100 products on display, ranging from electronic appliances to auto parts and foods, is actually part of a campaign to restrict their trade, according to Kenji Hidaka, director of the Beijing office of the intellectual property rights division of the Japan External Trade Organization.