Japan Research Institute manager Takayuki Watanabe sees the stamps as part of Japan's hierarchical business culture. To get a decision approved, an employee often needs stamped approval from colleagues above them in rank, one by one, he said. "First you need a seal from your superior, then the team leader, the section chief and the department director," he said. "It's a no-no to skip those in the middle." The top boss usually stamps their seal upright on the left of a document, with lower-ranking employees all tilting their stamps towards it as if "bowing".
AFP