Surname
Kogayu
Cognomen Kogayu (Kogayu ) , in the world, is quite a common last name. The family name Kogayu is habitual in Eastern Asia, particularly Japan, where it is quite a rare surname.
Characteristic
forenames
Masao, Masakatsu, Hirohisa, Hiroyuki, Nobuyasu, Masatoshi, Hiroshi, Kazuhiko, Shoichi, Yoshio, Ichiro, Toshio, Masatsugu, Koichi, Shizuo, Michio, Masami, Yasuo, Hideo, Haruo, Tomio, Takeo, Kenji, Akira, Shoji, Susumu, and Yoshihiko