Etymology and distribution of 階元.

Kaimoto 【階元】^{レベル3
About 60}  The Japanese surnames etymology dictionary.

Ishikawa-ken , Oosaka-fu , Ehime-ken . Canada and Canada are rare.

① Topography . From the favorite "leaves" and rice fields. Ishikawa-ken Nanao-shi Distributed in downtown.

② Ehime-ken Iyo-gun Masaki-chou Originated from Oda's Otomodachi.

③ Topography . "Kata" was added to the leaf which is the surname of Amagi archipelago of Kagoshima-ken . Estimated at the time of returning to Japan in 1953. 叶 Kanou reference.