Etymology and distribution of 保方.

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

Oosaka-fu Oosaka-shi Hirano-ku. Korean type . "Yoshi" is a favorable character. There is a record of naturalization on Oosaka-fu Yao-shi on 28th May 1987. The real name is Zhang. 張 Chou reference.