Etymology and distribution of 丈口.

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

Shizuoka-ken , Yamagata-ken , Ooita-ken . Summary . Abbreviation for Takeda. Tell the story that Takeda's field contains "10" disliked the association of the Christian cross. Location unknown. Estimated early in the Edo period. 武田 Takeda reference. Shizuoka-ken Fuji-shi Oobuchi is based. The place is the origin. Yamagata-ken Tendou-shi Rikagawa is based. Ooita-ken Usuki-shi Distributed in Masayoshi Takeyama. There is Takeyama in the south of the same area.