Uchikawa 【内川】5 The Japanese surnames etymology dictionary.
Shimane-ken Ooda-shi . Originated in the Shimane-ken eastern part (formerly Izumo (Izumo)) · Shimane-ken western part (formerly Iwami). A place name with a record since the Asuka period. I told that I was called at the border between Izumo and Iwami. Shimane-ken Ooda-shi Oya- cho Village is distributed.