Kanemitsu 【金光】5 The Japanese surnames etymology dictionary.
Ishikawa-ken , Nara-ken , Kyouto-fu . Thing . From the tile. Ishikawa-ken Kahoku-shi In Nakanuma, it is said to be the descendant of Ryuhei Tawaraya who founded a roof tile in 1831 (Tenpo 2nd year). Toyama-ken Imizu-shi tells me that it was Meiji new family name due to handling tile.