Etymology and distribution of 伊介.

Ikai 【伊介】^{レベル3
About 90}  The Japanese surnames etymology dictionary.

Yamagata-ken Yamagata-shi , Toukyou-to , Iwate-ken . Birth of Yamagata-ken Murayama-shi Futenai (old: Komai (Kamui)). A place name with a record since the Edo period. The place name was also written as "Komai". It tells that the examiner of the same place called after the separation of the Buddha and Buddha in 1868. In Waga-cho of Iwate-ken Kitakami-shi there is a transmission with Meiji New Surname that changed from Saito surname by managing a horse with Yamagata-ken Murayama-shi outing. 斎藤 Saitou reference.