Kokanda 【小神田】2 The Japanese surnames etymology dictionary.
Hiroshima-ken , Okayama-ken , Wakayama-ken . There is an example of using a "valley" for a store of a shop name. Okayama-ken Setouchi-shi It was in the Edo era on Oku-cho Kitajima. Wakayama-ken Wakayama-shi Eikaya was a place name that we called "Sakai Valley" during the Warring States Period.