The Japanese surnames etymology dictionary.
Toyama-ken Toyama-shi . Toyama-ken Toyama-shi Originated in Komami (Komi Mi (old: Midori)). A place name with a record since the Muromachi period. The place name and surname were pronounced as mami. Toyama-ken Toyama-shi Iwakasei -shi tell the town that you used the shop name of the Shinji temple shop in the Edo period. Toyama-ken Toyama-shi Mansanji is a place name with a record since the Edo period.
* There is a record in the Azuchi-Momoyama period as a vassal of Nobunaga Oda, a warrior of the Azuchi-Momoyama period during the Warring States Period.