Empress Kōjun
On 31 March 1955, Kominato merged with Nishi-Hiranai and Higashi-Hiranai to form the town, Hiranai. On 20 May 1963, Emperor Shōwa and Empress Kōjun visited Hiranai to plant a Japanese red pine in the Yogoshiyama Forest Park for the 14th Annual Tree Planting Event and National Greening Convention.