Kamegai 【亀ケ井】2 The Japanese surnames etymology dictionary.
Oosaka-fu , Akita-ken , Hyougo-ken . Oosaka-fu Originated from the shore of Suita-shi . A place name recorded since the Heian period. The place name was also written as "Yoshi Division". Descendant of Kishi (Kishi) who was from the official name of the eastern part of Republic of Korea (old: Shirakawa).