The Japanese surnames etymology dictionary.
Shizuoka-ken · Nara-ken . Creation . Miyagi-ken Sendai-shi Aoba-ku Kawauchi was in the Edo era in the Sendai Samurai of the Clan office. The same clan tells me that the brothers divide the affairs in the vicinity of the three part one station which was in Miyagi - ken Higashimatsushima - shi Asai divided into one third. Estimated late Warring States Period.