Kanai 【嘉内】2 The Japanese surnames etymology dictionary.
① Birth of Chiba-ken Asahi-shi Asukawa (old: Shikawa village). A place name with a record since the Heian period. The pronunciation of the name Shikawa is also Ashikawa. Kumamoto-ken Kikuchi-gun Kikuyou-machi Shinkawa is a transit point. The name of a place with a record in the notation of "Tang River" in the North-South morning era. Kumamoto-ken Kumamoto-shi Chuo-ku Honmaru was in the Edo era at the Kumamoto clan in the Clan office.