Etymology and distribution of 戸子臺.

Tokodai 【戸子臺】^{レベル1
Very rare}  The Japanese surnames etymology dictionary.

Toukyou-to Arakawa-ku . Korean type . "Mountain" added to Qin. Toukyou-to Arakawa-ku Naturalized on 13th December 2000, naturalized. The real name is Qin. 秦 Hata reference.