Etymology and distribution of 兼堅.

Kaneken 【兼堅】^{レベル2
About 30}  The Japanese surnames etymology dictionary.

Oosaka-fu . Origin of Oosaka-fu Eastern (formerly Kawachi-kun). A place name with a record since the Asuka period. The first element is from the river in Kawachi. Oosaka - fu tells that it is the descendant of Kawachiya Inabe who started brewing soy sauce in Sakai - shi in 1800 (Kankei 12 years). "Sheng" is a favorable character.