Sakasai 【坂佐井】2 The Japanese surnames etymology dictionary.
Kanagawa-ken Yokohama-shi Minami-ku. Occupation . A variant of 柴屋 . Toyama-ken Imizu-shi I tell you that in Shizuizu-machi I used a shibaya 's shop in the Edo period. There is also a story that there was Toyama-ken Oyabe-shi dealing in firewood charcoal until the middle of the Edo period in the same place. 柴屋 reference.