Etymology and distribution of 竹岳.

Takeoka 【竹岳】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Oosaka-fu Higashioosaka-shi . Korean type . 延日 surname. It was Oosaka-fu Higashioosaka-shi and was named after the name in 1980. Zheng the real name. 延日 Nobuhi reference. 鄭 Tei reference.