Un'no 【海野】6 The Japanese surnames etymology dictionary.
Ooita-ken Nakatsu-shi . Ooita-ken Nakatsu-shi Tamotsukado Town Tashida is based. It was in the Edo period in the same place. In 1588 (Tensho 16 years), there is a record with the notation of "extension". It is unknown whether the extension will exist.