Family name コウケン (コウケン ) , all around the world, is a rare cognomen. The family name コウケン is characteristic of Eastern Asia, particularly Japan, where it is a rare surname.
Kouken
ハラダ, and ニシモリ
) , all around the world, is a rare cognomen. The family name コウケン is characteristic of Eastern Asia, particularly Japan, where it is a rare surname.