Etymology and distribution of 中科.

Nakashina 【中科】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Kyouto-fu , Niigata-ken , Hiroshima-ken . There are cases where Hira means "sloping ground".

* In Kagoshima-ken , tell him that Mr. Mr. Fujiwara's descendant was called by Mr. Fujiwara. Unknown times. 図師 Zushi reference. 藤原 Fujiwara reference.