三菱的logo是岩崎家族的家族标志「三段菱」和土佐藩主山内家族的家族标志“三柏菱”的结合，后来逐渐演变成今天的三菱标志，以三颗菱形钻石为标志。
The logo represents this by combining two " crests " - the three-leaf crest of the Tosa Clan and the Iwasaki family crest , which showed three diamonds stacked on top of each other .
土佐藩