There is a theory that pointed out the similarity between Ikima, a Yamatai high ranking officer, and 'Ikume,' the name of Emperor Suinin, but details such as the names of envoys by Himiko are not specified in the "Record of Ancient Matters" and the "Chronicles of Japan," the history books of Yamato Dynasty.
邪馬台国長官の伊支馬（いきま？）と垂仁天皇の名「いくめ」の近似性を指摘する説もあるが、大和朝廷の史書である記紀には、卑弥呼の遣使のこと等具体的に書かれていない。