Koshuu 【胡周】1 The Japanese surnames etymology dictionary.
Ishikawa-ken Suzu-shi . Creation . Ishikawa-ken Suzu-shi Meiji New surname by monk of Eikonji of Jodo Shin Buddhist in Orio-machi. In the same temple tells that he used "perfection" for the saddle of Bodhisatta which means Bodhisattva. There is also a story that it was called as common name in the temple from 1781 to 1789 (Tenmyo-year years).