Etymology and distribution of 五貝.

Gokai 【五貝】^{レベル2
About 10}  The Japanese surnames etymology dictionary.

Yamanashi-ken , Toukyou-to , Kanagawa-ken . Yamanashi-ken Koufu-shi Birth of Rikiyoshi. A place name with a record since the Warring States Period. Yamanashi-ken Hokuto-shi Sudamachi In Fujita there is a belief that Mr. Satomi resigned from 1452 to 1455 (Kintoku year) from the southern part of Chiba-ken (Old Awa-kun) and was renamed. 里見 Satomi reference.