The proper noun of authentic chrysanthemum is the word "authentic", which has been popular as a trademark of sake since the Edo period (163-1868) in Japan. Even in today's sake brands, there are many manufacturers named after "authentic". This is because when the word "authentic" is pronounced by Japanese "phonetic reading", it is pronounced as "seisyu". This is exactly the same as the pronunciation of sake "seisyu". Therefore, the sake trademark labeled "authentic" is widely adopted and popular. In fact, there are many statements about "using the word authentic as a trademark", which one is correct is still inconclusive. However, what is accepted by everyone is that "authentic" was first popular in ancient Tokyo (Edo City), and later manufacturers competed to use the name of "authentic" as their own brands. In the 17th year of Meiji (1882), with the promulgation of the Trademark Regulations by the Japanese government, the word "authentic" was officially applied as a trademark. At the same time, when manufacturers apply for "authentic" as a registered trademark in succession, the word will not be accepted because it is an "ordinary word". Gana Jiroemon-Gana Qiuxiangweng, the authentic eighth generation of Chrysanthemum, was inspired immediately after inadvertently seeing "Chrysanthemum". Therefore, his own brand was named "Chrysanthemum", and the trademark "Chrysanthemum Authentic" was thus formed.