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Family name 義明 (Yoshiaki , 義明 ) , globally, is quite a common cognomen. The cognomen 義明 is habitual in Japan, where it is quite a rare surname, Singapore, where it is a rare surname, and Taiwan. Not in comparison with a country's population, this name is the most popular in Eastern Asia, particularly Japan, China, and Taiwan. Likewise, 義明 is the forename as well as the last name.