Kurokouchi 【黒河内】4 The Japanese surnames etymology dictionary.
Aichi-ken , Hyougo-ken , Gifu-ken . Originated from Kochi-machi of Aichi-ken Kounan-shi . A place name with a record in the notation of "Konchi" in the Warring States Period. The place name was also written as "old pond" and "old farm". Tell him that he changed the name from Koike surname using "old" of Koshino in the same place. Shizuoka-ken Susono-shi was in the Warring States Period.