Attendees on the show floor were mostly unconcerned with what Chinese companies are doing at Ceatec, seen by many as an annual celebration of Japan's tech prowess. An electronics repairman who has come to the show each year for the last decade said he wasn't convinced the riots were a major issue.

"I'm not sure how bad the situation over there really is, or if it's just being played up by the media," he said, asking that his name not be used in a sensitive story about China.

"Either way, there's no danger here. The Japanese don't have that kind of fervor."