1. First of all, the family pattern of "Tung" is very noble in Japan, and the clothes of Japanese emperors all have tung patterns. Until the end of Kamakura, Tung was officially applied as the pattern of the imperial family. Ashikaga respected the teacher because he overthrew the Kamakura shogunate, and was given the word "Zun" by Go Daigo. Since then, he has been allowed to use tung patterns. Later, after each generation of generals, they all gave the important military commander Tong Wen. Ashikaga Yoshiaki, the first15th generation general of Muromachi shogunate, gave Tongwen to Nobuyuki Oda, and later Nobuyuki Oda gave it to Hideyoshi. After Toyotomi Hideyoshi acquired the Toyotomi family, there was a family pattern of "residence" and "communication". Because Xiuji is not a noble family, in order to win over the military commanders below, he only stayed and gave the boy to the military commanders below. In nineteen years, the court explicitly banned the indiscriminate use of tung chrysanthemum patterns.

2. Secondly, because many families use a tattoo at the same time, even the same family is divided into their own family and family. So in order to distinguish, some of them are also to show that although I have the same pattern, I am more distinguished and have a longer history, so I use tung as the main pattern, and then other patterns are supplemented. The classification of tung patterns mainly depends on the number of flowers. Five or three tung trees mean a five-flowered tung tree in the middle and a three-flowered tung tree on each side. Paulownia with seven flowers in the middle and five flowers on both sides.